Steel valves

Z245.15-17

Steel valves

Legal Notice for Standards

Canadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved

by the Standards Council of Canada. This process brings together volunteers representing varied viewpoints and interests to achieve consensus

and develop a standard. Although CSA Group administers the process and establ ishes rules to promote fairness in achieving consensus, it does

not independently test, evaluate, or verify the content of standards.

Disclaimer and exclusion of liabilityThis document is provided without any representations, warranties, or conditions of any kind, express or impl ied, including, without l imitation,

impl ied warranties or conditions concerning this document’s fitness for a particular purpose or use, its merchantabil ity, or its non-infringement

of any third party’s intel lectual property rights. CSA Group does not warrant the accuracy, completeness, or currency of any of the information

publ ished in th is document. CSA Group makes no representations or warranties regarding this document’s compliance with any appl icable

statute, ru le, or regulation.

IN NO EVENT SH ALL CSA GROUP, I TS VOLUNTEERS, MEMBERS, SUBSIDI ARIES, OR AFFILIATED COMPANIES, OR TH EIR EMPLOYEES, DIRECTORS,

OR OFFICERS, BE LIABLE FOR ANY DI RECT, I NDIRECT, OR INCI DENTAL DAMAGES, I NJURY, LOSS, COSTS, OR EXPENSES, H OWSOEVER CAUSED,

INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGED

DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT ( INCLUDING NEGLIGENCE), OR ANY OTHER

THEORY OF LI ABILITY, ARI SING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA GROUP

HAS BEEN ADVISED OF THE POSSI BILITY OF SUCH DAMAGES, IN JURY, LOSS, COSTS, OR EXPENSES.

In publ ishing and making this document avai lable, CSA Group is not undertaking to render professional or other services for or on behalf of any

person or entity or to perform any duty owed by any person or entity to another person or entity. The information in th is document is d irected

to those who have the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibi l ity whatsoever

arising in any way from any and a l l use of or rel iance on the information contained in this document.

CSA Group is a private not-for-profit company that publ ishes voluntary standards and related documents. CSA Group has no power, nor does it

undertake, to enforce compliance with the contents of the standards or other documents it publ ishes.

Intellectual property rights and ownershipAs between CSA Group and the users of this document (whether it be in printed or electronic form), CSA Group is the owner, or the authorized

l icensee, of a l l works contained herein that are protected by copyright, a l l trade-marks (except as otherwise noted to the contrary), and a l l

inventions and trade secrets that may be contained in th is document, whether or not such inventions and trade secrets are protected by

patents and appl ications for patents. Without l imitation, the unauthorized use, modification, copying, or d isclosure of th is document may

violate laws that protect CSA Group’s and/or others’ intel lectual property and may give rise to a right in CSA Group and/or others to seek legal

redress for such use, modification, copying, or d isclosure. To the extent permitted by l icence or by law, CSA Group reserves a l l intel lectual

property rights in th is document.

Patent rightsAttention is drawn to the possibi l ity that some of the elements of this standard may be the subject of patent rights. CSA Group shal l not be

held responsible for identifying any or a l l such patent rights. Users of this standard are expressly advised that determination of the val idity of

any such patent rights is entirely their own responsibi l ity.

Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to do

only the fol lowing:

I f this document is in electronic form:

• load this document onto a computer for the sole purpose of reviewing it;

• search and browse this document; and

• print th is document if it is in PDF format.

Limited copies of th is document in print or paper form may be d istributed only to persons who are authorized by CSA Group to have such

copies, and only if this Legal Notice appears on each such copy.

In addition, users may not and may not permit others to

• a lter th is document in any way or remove this Legal Notice from the attached standard;

• sel l this document without authorization from CSA Group; or

• make an electronic copy of th is document.

I f you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any

copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of th is document

constitutes your acceptance of the terms and conditions of th is Legal Notice.

Get more FREE standards from Standard Sharing Group and our chats

https://t.me/standardsharing

Standards Update Service

Z245.15-17

September 2017

Title: Steel valves

To register for e-mail notification about any updates to this publ ication

• go to shop.csa.ca

• cl ick on CSA Update Service

The List ID that you wil l need to register for updates to this publ ication is 2425342 .

I f you require assistance, please e-mail [email protected] or cal l 416-747-2233.

Visit CSA Group’s pol icy on privacy at www.csagroup.org/legal to find out how we protect your

personal information.

http://shop.csa.ca

mailto:[email protected]

http://www.csagroup.org/legal

ISBN 978-1-4883-0843-7

© 2017 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever

without the prior permission of the publisher.

Published in September 2017 by CSA Group

A not-for-profit private sector organization 178 Rexdale Boulevard, Toronto, Ontario, Canada M9W 1R3

To purchase standards and related publications, visit our Online Store at shop.csa.ca

or call toll-free 1 -800-463-6727 or 416-747-4044.

®A trademark of the Canadian Standards Association, operating as “CSA Group”

Steel valves

Z245.15-17


http://shop.csa.ca


Z245.15-17 Steel valves

September 2017 © 2017 CSA Group 1

Contents

Technical Committee on Petroleum and Natural Gas Industry Pipel ine Systems and Materia ls 4

Subcommittee on Materia ls 10

Preface 12

1 Scope 14

1.1 General 14

1.2 Size, nominal pressure class, and category 14

1.2.1 Size 14

1.2.2 Nominal pressure class 14

1.2.3 Category 14

1.3 End configuration 14

1.4 Terminology 14

2 Reference publications 15

3 Definitions 19

4 General requirements 20

4.1 Product ordering requirements 20

4.1.1 Standard requirements 20

4.1.2 Optional requirements 20

4.1.3 Additional requirements 21

4.2 Weldabil ity 21

4.3 Rounding procedure 21

4.4 Qual ity program 21

5 Design 22

5.1 Configurations 22

5.1.1 Patterns 22

5.1.2 Gate valves 22

5.1.3 Plug valves (see Figure 4) 22

5.1.4 Bal l valves (see Figure 5) 23

5.1.5 Check valves 23

5.2 Pressure ratings 23

5.3 Sizes 24

5.4 End configurations 24

5.4.1 Flanged ends 24

5.4.2 Buttwelding ends 24

5.4.3 Wafer-type valve ends 24

5.5 Extended operating gear 24

5.6 Pressure rel ief 25

5.7 Drain and bypass connections 25

5.8 Sealant fittings 25

5.9 Bonnet and cover flanges 26

5.10 Stem packing 26



5.11 Wrenches or bars 26

5.12 Handle extensions 26

5.13 Handwheels 26

5.14 Torque 26

5.15 Locking device 26

5.16 Position indicator 26

5.17 Valve-closing d irection indicator 26

5.18 Stem protection 26

5.19 Support members 26

5.20 Lifting lugs 27

5.21 Noise levels 27

6 Materials and manufacture 27

6.1 Materia ls for pressure-containing parts other than bolting and other fasteners 27

6.1.1 Pressure-containing parts other than stems and shafts 27

6.1.2 Stems and shafts 27

6.2 Bolting and other fasteners for pressure-containing parts 27

6.3 Materia ls for miscel laneous metal parts 27

6.4 Materia ls for non-metal l ic parts 27

6.5 Welding qual ification 28

6.6 Cal ibration of heat treating equipment 28

7 Chemical test requirements 28

7.1 General 28

7.2 Heat analysis 28

7.3 Product analysis 28

8 Mechanical test requirements 29

8.1 Selection of test specimens for pressure-containing parts 29

8.1.1 General 29

8.1.2 Mechanical properties achieved by cold working 29

8.1.3 Mechanical properties achieved by a process other than cold working 29

8.2 Defective test specimens 29

8.3 Tension tests 29

8.3.1 General 29

8.3.2 Requirements 29

8.4 Notch-toughness tests — Category I I valves 30

8.4.1 General 30

8.4.2 Test specimen orientation 30

8.4.3 Test specimen size 30

8.4.4 Requirements 30

8.5 Testing of non-pressure-containing parts 31

9 Pressure test requirements 31

9.1 General 31

9.2 Test equipment 31

9.3 Shel l test 32

9.4 Seat tests 32

9.4.1 Hydrostatic seat tests 32





9.4.2 Air seat tests 32

10 Dimensions and tolerances 33

10.1 Dimensions and tolerances of standard valves 33

10.1.1 Standard round-port ful l-bore pattern valves 33

10.1.2 Standard gate valves 33

10.1.3 Standard plug valves 33

10.1.4 Standard bal l va lves 33

10.1.5 Standard check valves 33

10.2 Dimensions and tolerances of non-standard valves 33

11 Inspection, work quality, and repair of valves containing defects 33

11.1 Plant inspection 33

11.2 Inspection notice 33

11.3 Plant access 33

11.4 Work qual ity 34

11.5 Repair of valves containing defects 34

12 Non-destructive inspection requirements 34

13 Sour service 34

14 Marking and shipping 35

14.1 Marking 35

14.2 Preparation for shipment 36

15 Certification 36

Annex A (informative) — Pipel ine component size nomenclature 74

Annex B ( informative) — Nominal pressure class nomenclature 76

Annex C ( informative) — Recommended practice for the cal ibration and survey of heat treating

equipment 77



Technical Committee on Petroleum and

Natural Gas Industry Pipeline Systems and

Materials

J.A. Fournell QAi Qual ity Assurance Inc. , Edmonton, Alberta Category: General Interest

Chair

D. Carnes Canadian Natural Resources Limited, Calgary, Alberta Category: Producer Interest

Vice-Chair

G. Mills Enbridge Gas Transmission & Midstream, Calgary, Alberta Category: User Transmission

Vice-Chair

D.J. Tchir ATCO Gas, Edmonton, Alberta Category: User Distribution

Vice-Chair

B. Wilson Acuren Group Inc. , Calgary, Alberta Category: Supplier/Fabricator/Contractor

Vice-Chair

J. Abes Det Norske Veritas Canada Ltd. , Calgary, Alberta Category: General Interest

A.J. Afaganis EVRAZ Inc. NA, Calgary, Alberta Category: Supplier/Fabricator/Contractor

F.B. Austin BC Oil & Gas Commission, Victoria, British Columbia Category: Government and/or Regulatory Authority

K. Baraniecki Enbridge Pipel ines Inc. , Edmonton, Alberta Category: User Transmission

M. Béland Gaz Métro, Montréal , Québec

Associate





M. Binet Gaz Métro, Montréal , Québec Category: User Distribution

A. Bhatia Det Norske Veritas Canada Ltd. , Calgary, Alberta

Associate

R. Brousseau Régie du Bâtiment du Québec, Montréal , Québec Category: Government and/or Regulatory Authority

R.R. Bryant Aecon Util ity Engineering, Chatham, Ontario

Associate

P. Colwell Union Gas Limited, Chatham, Ontario Category: User Distribution

F. Cox Husky Energy Inc. , Calgary, Alberta Category: Producer Interest

K. Crichton Perma-Pipe Canada, Camrose, Alberta Category: Supplier/Fabricator/Contractor

C. Dubeau Union Gas Limited, Chatham, Ontario

Associate

D. Feser Kinder Morgan Canada Inc. , Calgary, Alberta Category: User Transmission

G. Forgeron Imperia l Oi l Resources, Calgary, Alberta Category: Producer Interest

L.H. Gales Transportation Safety Board of Canada, Gatineau, Québec

Associate

M.H. Glass Trans-Northern Pipel ines Inc. , Richmond Hi l l , Ontario Category: User Transmission



S. Gosse Encana Services Company Ltd. , Calgary, Alberta Category: Producer Interest

G.A. Harms Harms-Way Projects, Calgary, Alberta Category: General Interest

G.R. Johnson FortisBC Energy Inc. (FEI ), Surrey, British Columbia Category: User Distribution

T.N. Kee Alberta Agriculture and Rural Development, Edmonton, Alberta Category: Government and/or Regulatory Authority

Associate

S. Kenny Carleton University, Ottawa, Ontario

Associate

M. Kotchounian Transportation Safety Board of Canada, Gatineau, Québec

Associate

H. Kraft Harold Kraft Consulting, Calgary, Alberta

Associate

T.H. Lawrence TMK IPSCO, Houston, Texas, USA Category: Supplier/Fabricator/Contractor

K. Letendre Cenovus Energy Inc. , Calgary, Alberta

Associate

R. MacDonald Shel l Canada Limited, Calgary, Alberta Category: Producer Interest

J.D. Mackenzie Kiefner and Associates, Inc. , Bel l ingham, Washington, USA Category: General Interest

D.R. Mann SaskEnergy, Regina, Saskatchewan Category: User Transmission

K. Manouchehri Technical Standards & Safety Authority (TSSA), Toronto, Ontario

Associate





R.A. Marsden Cenovus Energy Inc. , Calgary, Alberta Category: Producer Interest

T.W. McQuinn New Brunswick Energy and Uti l ities Board, Saint John, New Brunswick Category: Government and/or Regulatory Authority

G. McShane Tenaris, Calgary, Alberta Category: Supplier/Fabricator/Contractor

G.F. Palermo Palermo Plastics Pipe (P3) Consulting, Friendsvi l le, Tennessee, USA Category: Supplier/Fabricator/Contractor

R.B. Partington Federation of Alberta Gas Co-ops Ltd. , Sherwood Park, Alberta Category: User Distribution

J. Paviglianiti National Energy Board, Calgary, Alberta Category: Government and/or Regulatory Authority

T.J. Pesta Pesta Consulting Ltd. , Calgary, Alberta

Associate

D. Petursson Manitoba Hydro, Winnipeg, Manitoba Category: User Distribution

M. Poehlmann ABSA, Edmonton, Alberta Category: Government and/or Regulatory Authority

L. Radke ATCO Pipel ines, Edmonton, Alberta

Associate

C.E. Rollings H3R Inc. , Hal ifax, Nova Scotia

Associate

A.B. Rothwell Brian Rothwel l Consulting Inc. , Calgary, Alberta

Associate



J.D. Sandison CMC Consultants Inc. , Winnipeg, Manitoba Category: General Interest

W.A. Simpson North American Standards Assessment Corp. , Sherwood Park, Alberta

Associate

T. Starodub Manitoba Hydro, Winnipeg, Manitoba

Associate

J.K. Steeves AMEC Foster Wheeler, Calgary, Alberta

Associate

J. Sutherland PI I Pipel ine Solutions (GE Oi l & Gas), Calgary, Alberta Category: Supplier/Fabricator/Contractor

N. Thalassinos Entity Consulting Inc. , Richmond Hi l l , Ontario Category: General Interest

A. Van Der Veen TransCanada PipeLines Limited, Calgary, Alberta

Associate

M. Wagle Enbridge Gas Distribution, Toronto, Ontario Category: User Distribution

S. Walker Union Gas Limited, Chatham, Ontario

Associate

H. Wallace Alberta Energy Regulator, Calgary, Alberta Category: Government and/or Regulatory Authority

L. Wojtanowski Sun-Canadian Pipe Line Company Limited, Waterdown, Ontario Category: User Transmission

J. Zhou TransCanada PipeLines Limited, Calgary, Alberta Category: User Transmission

S. Capper CSA Group, Toronto, Ontario

Project Manager





P. Fernandez Marchi CSA Group, Toronto, Ontario

Project Manager



Subcommittee on Materials

A.J. Afaganis EVRAZ Inc. NA, Calgary, Alberta

Chair

M. Whitehouse Enbridge Gas Distribution, Mooretown, Ontario

Vice-Chair

E.B. Willett Enbridge Gas Transmission & Midstream, Calgary, Alberta

Vice-Chair

D.M. Duan TransCanada PipeLines Limited, Calgary, Alberta

K. Durand Canadoil Forge Ltd. , Bécancour, Québec

T. Gorrell All ied Group, Houston, Texas, USA

C. Guan TransCanada PipeLines Limited, Calgary, Alberta

D. Horsley Horsley Consulting Ltd. , Calgary, Alberta

T.H. Lawrence TMK IPSCO, Houston, Texas, USA

M.Q. Li Fortune Group, Edmonton, Alberta

R. Mackenzie Enbridge Pipel ines Inc. , Edmonton, Alberta

S. Matsuno Marubeni-I tochu Tubulars Canada Ltd. , Calgary, Alberta

G. McShane Tenaris, Calgary, Alberta

G.T. Melnychuk Stream-Flo Industries Ltd. , Edmonton, Alberta





D.P. Ochitwa National Energy Board, Calgary, Alberta

H.R. Ramay WorleyParsons, Calgary, Alberta

M. Saric Alberta Energy Regulator, Calgary, Alberta

R. Schmidt Canadoil , Russel lvi l le, Arkansas, USA

W. Tang Solaris Management Consultants Inc. , Surrey, British Columbia

S. Tracy EVRAZ Inc. NA, Calgary, Alberta

W.R. Tyson Natural Resources Canada, Ottawa, Ontario

I .A. Ward Shel l Global Solutions Canada, Calgary, Alberta

B. Wray Galperti Canada, Edmonton, Alberta

S. Xu CanmetMATERIALS Natural Resources Canada, Hamilton, Ontario

P. Fernandez Marchi CSA Group, Toronto, Ontario

Project Manager

In addition to the members of the Subcommittee on Materials, Jan Andersson made a valuable

contribution to the development of this Standard.



Preface

This is the ninth edition of CSA Z245.15, Steel valves . I t supersedes the previous editions publ ished in

2013, 2009, 2005, 2001, 1996, 1991, 1987, and 1981.

This Standard covers the requirements for steel valves intended to be used for transporting flu ids as

specified in CAN/CSA-Z662.

Some of the main changes to this edition include the fol lowing:

a) revised optional product ordering requirements (Clause 4.1.2 );

b) revised drain and bypass connections, and sealant fittings requirements (Clauses 5.7 and 5.8);

c) revised seat tests requirements (Clause 9.4);

d) revised sour service requirements (Clause 13);

e) revised Table 5 Ring and groove dimension C for PN 420 ful l -bore, NPS 2-1/2 valves;

f) revised Table 8; and

g) revised furnace cal ibration and survey requirements (Annex C).

In this 2017 edition, where a major change or addition to the previous edition of this Standard has been

made, the clause, table, or figure affected is identified by the symbol � in the margin. Users of this

Standard are advised that the change markers in the text are not intended to be a l l -inclusive and are

provided as a convenience only; such markers cannot constitute a comprehensive guide to the revisions

made to this Standard. Care must therefore be taken not to rely on the change markers to determine

the current requirements of this Standard. As a lways, users of this Standard must consider the entire

Standard.

This Standard was prepared by the Subcommittee on Materia ls, under the jurisdiction of the Technical

Committee on Petroleum and Natural Gas Industry Pipel ine Systems and Materia ls and the Strategic

Steering Committee on Petroleum and Natural Gas Industry Systems, and has been formal ly approved

by the Technical Committee.

Notes:

1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it

remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3) This Standard was developed by consensus, which is defined by CSA Pol icy governing standardization — Code

of good practice for standardization as “substantial agreement. Consensus implies much more than a simple

majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in

the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

4) To submit a request for interpretation of this Standard, please send the following information to

[email protected] and include “Request for interpretation” in the subject line:

a) define the problem, making reference to the specific clause, and, where appropriate, include an

illustrative sketch;

b) provide an explanation of circumstances surrounding the actual field condition; and

c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the

issue.

Committee interpretations are processed in accordance with the CSA Directives and guidelines governing

standardization and are available on the Current Standards Activities page at standardsactivities. csa.ca .

5) This Standard is subject to review within five years from the date of publication, and suggestions for its

improvement will be referred to the appropriate committee. To submit a proposal for change, please send the

following information to [email protected] and include “Proposal for change” in the subject line:

a) Standard designation (number);

b) relevant clause, table, and/or figure number;





c) wording of the proposed change; and

d) rationale for the change.



Z245.15-17

Steel valves

1 Scope

1.1 General

This Standard covers steel valves primari ly intended for use in oi l or gas pipel ine systems. The fol lowing

types of valves are covered:

a) gate valves;

b) plug valves;

c) bal l valves; and

d) check valves.

1.2 Size, nominal pressure class, and category

1.2.1 Size

This Standard covers valves in sizes from NPS 2 to NPS 60. (See Table A.1. )

1.2.2 Nominal pressure class

This Standard covers valves having cold working-pressure ratings designated by nominal pressure

classes from PN 20 to PN 420. The standard nominal pressure classes are shown in Table 1. (ASME class

designations are shown in Table B.1.)

1.2.3 Category

This Standard covers valves in the fol lowing categories:

a) Category I : va lves without requirements for proven notch-toughness properties; and

b) Category I I : va lves with requirements for proven notch-toughness properties.

1.3 End configuration

This Standard covers standard end requirements for flanged, buttwelding, and wafer-type valves. Other

end configurations are considered non-standard and are subject to agreement between the purchaser

and the manufacturer.

1.4 Terminology

In this Standard, “shal l” is used to express a requirement, i .e. , a provision that the user is obl iged to

satisfy in order to comply with the standard; “should” is used to express a recommendation or that

which is advised but not required; and “may” is used to express an option or that which is permissible

within the l imits of the Standard.

Notes accompanying clauses do not include requirements or a lternative requirements; the purpose of a

note accompanying a clause is to separate from the text explanatory or informative material .

Notes to tables and figures are considered part of the table or figure and may be written as

requirements.





Annexes are designated normative (mandatory) or informative (non-mandatory) to define their

appl ication.

� 2 Reference publicationsThis Standard refers to the fol lowing publ ications, and where such reference is made, it shal l be to the

edition l isted below, unless the user finds it more appropriate to use newer or amended editions of such

publ ications.

CSA Group

G40.20-13/G40.21-13

General requirements for rolled or welded structural quality steel/Structural quality steel

Z245.1-14

Steel pipe

Z245.11-17

Steel fittings

Z245.12-17

Steel flanges

CAN/CSA-Z662-15

Oil and gas pipeline systems

API (American Petroleum Institute)

5B-2008 (R2015) (SPEC)

Specification for Threading, Gauging, and Thread Inspection of Casing, Tubing, and Line Pipe Threads

5L-2013 (SPEC)

Specification for Line Pipe

Q1-2014 (SPEC)

Specification for Quality Management System Requirements for Manufacturing Organizations for the

Petroleum and Natural Gas Industry

ASME (The American Society of Mechanical Engineers)

Boiler and Pressure Vessel Code

Section VIII — Pressure Vessels, Division 1 , 2015

Section IX — Welding and Brazing Qualifications, 2015

B1.20.1-2013

Pipe Threads, General Purpose, Inch

B1.20.3-1976 (R2013)

Dryseal Pipe Threads, Inch

B1.20.5-1991 (R2014)

Gaging for Dryseal Pipe Threads — Inch



B16.5-2013

Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard

ASTM International (American Society for Testing and Materials)

A36/A36M-14

Standard Specification for Carbon Structural Steel

A53/A53M-12

Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

A105/A105M-14

Standard Specification for Carbon Steel Forgings for Piping Applications

A106/A106M-15

Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

A181/A181M-14

Standard Specification for Carbon Steel Forgings, for General-Purpose Piping

A182/A182M-16a

Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and

Valves and Parts for High-Temperature Service

A193/A193M-16

Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure

Service and Other Special Purpose Applications

A194/A194M-16a

Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature

Service, or Both

A203/A203M12

Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel

A216/A216M-16

Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature

Service

A217/A217M-14

Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts,

Suitable for High-Temperature Service

A242/A242M-13

Standard Specification for High-Strength Low-Alloy Structural Steel

A285/A285M-12

Standard Specification for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength

A320/A320M-15a

Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for Low-Temperature Service





A333/A333M-16

Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service

A350/A350M-15

Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for

Piping Components

A351/A351M-16

Standard Specification for Castings, Austenitic, for Pressure-Containing Parts

A352/A352M-06 (2012)

Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable

for Low-Temperature Service

A354-11

Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally

Threaded Fasteners

A370-17

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

A381-96 (2012)

Standard Specification for Metal-Arc-Welded Steel Pipe for Use With High-Pressure Transmission

Systems

A487/A487M-14

Standard Specification for Steel Castings Suitable for Pressure Service

A515/A515M-10 (2015)

Standard Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-

Temperature Service

A516/A516M-10 (2015)

Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature

Service

A537/A537M-13

Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel

A541/A541M-05 (2015)

Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel

Components

A572/A572M-15

Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

A633/A633M-01 (2013)

Standard Specification for Normalized High-Strength Low-Alloy Structural Steel Plates



A694/A694M-16

Standard Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts

for High-Pressure Transmission Service

A707/A707M-14

Standard Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service

A710/A710M-02 (2013)

Standard Specification for Precipitation-Strengthened Low-Carbon Nickel-Copper-Chromium-

Molybdenum- Columbium Alloy Structural Steels Plates

A737/A737M-09 (2013)

Standard Specification for Pressure Vessel Plates, High-Strength, Low-Alloy Steel

A751-14a

Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

A757/A757M-15

Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other

Applications, for Low-Temperature Service

E18-16

Standard Test Methods for Rockwell Hardness of Metallic Materials

E29-13

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E140-12be1

Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness,

Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness

E384-16

Standard Test Method for Knoop and Vickers Hardness of Materials

AWHEM (Association of Well Head Equipment Manufacturers)

TR0701-2007

Specifications for Bleeder Plugs Used in Wellhead Applications

ISO (International Organization for Standardization)

15156-2:2015

Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas

production — Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons

15156-3:2015


production — Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

ISO/TS 29001:2010

Petroleum, petrochemical and natural gas industries — Sector-specific quality management systems —

Requirements for product and service supply organizations





MSS (Manufacturers Standardization Society of the Valve and Fittings Industry Inc.)

SP-25-2013

Standard Marking System for Valves, Fittings, Flanges and Unions

NACE International (National Association of Corrosion Engineers)/ISO (International Organization for

Standardization)

NACE MR0175/ISO 15156-2:2015


production — Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons

NACE MR0175/ISO 15156-3:2015


production — Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

3 DefinitionsThe fol lowing definitions shal l apply in this Standard:

Certificate of compliance — a document that states that the product was manufactured, sampled,

tested, and inspected as specified in this Standard (year of publ ication to be included) and the purchase

order, and was found to have met such requirements.

Defect — an imperfection of sufficient magnitude to warrant rejection based on the requirements of

this Standard.

Heat-affected zone — the portion of the base metal that has not been melted but whose mechanical

properties or microstructure has been a ltered by the heat of welding.

Heat analysis — the chemical analysis reported by the steel producer as being representative of the

heat of steel .

Imperfection — a materia l d iscontinuity or irregularity that is detectable by inspection in accordance

with the requirements of this Standard.

Maximum cold working pressure — the maximum pressure to which the operation of a valve at

temperatures of 120 °C and less may be l imited by virtue of some l imiting materia l or design element in

that particular valve.

Notch toughness — the resistance of the steel to fracture under suddenly appl ied loads at a notch.

Obturator — the movable portion of a va lve that causes stoppage of flow through the valve.

Pressure-containing parts — those valve parts that, when assembled, form the chamber(s) designed to

contain the pressurized flu id. Such parts include bodies, bonnets, covers, end flanges, buttwelding ends,

stems, shafts, and bolting.

Product analysis — the chemical analysis made on a sample taken from the finished valve or from

material representative of the finished valve.

Seat — the portion of the valve body against which the obturator presses to stop the flow.



Secondary sealing — provision for the appl ication of an injectable sealant against the seat face or the

stem of the valve, or both.

Shaft — a component in some check valves that supports the d isc mechanism and extends through the

wal l of the pressurized chamber. Shafts are sometimes fitted with items such as locking devices,

counterweights, and motion dampeners.

Stem — the component in the valve that is exposed to the pressurized media and causes movement of

the valve obturator when a sufficient force from the operating mechanism is appl ied.

4 General requirements

4.1 Product ordering requirements

� 4.1.1 Standard requirements

The fol lowing information shal l be included in the purchase order for valves:

a) CSA Standard designation and year of publ ication (Z245.15-17);

b) quantity;

c) type and pattern of valve (see Clauses 1.1 and 5.1);

d) nominal va lve size (see Clauses 1.2.1 and 10);

e) category (see Clause 1.2.3 );

f) end configuration (see Clauses 1.3 and 5.4);

g) nominal pressure class (see Clauses 1.2.2 and 5.2.1 and Table 1);

h) minimum and maximum design temperatures (see Clause 5.21);

i) for buttwelding end valves, matching pipe specified wal l thickness and grade and the inside

d iameter of the buttwelding end (see Clause 5.4.2);

j) for wafer-type valves, the matching flange (see Clause 5.4.3 );

k) test temperature for Category I I (see Clause 8.4.1.5 );

l ) for flanged-end valves, required bore size;

m) packaging and shipping instructions; and

n) required del ivery date.

� 4.1.2 Optional requirements

The purchase order shal l include information concerning the fol lowing items, when required by the

purchaser:

a) quantity, location, and orientation of Charpy test specimens for welding procedure specification

qual ification tests (see Clause 6.5.3 );

b) type of end flange (see Clause 5.4.1.1 );

c) a lternative design of buttwelding end (see Clause 5.4.2);

d) extended operating gear (see Clause 5.5);

e) pressure rel ief (see Clause 5.6.2);

f) drain and bypass connections (see Clause 5.7);

g) wrenches or bars (see Clause 5.11);

h) valve handle extension (see Clause 5.12);

i) locking device (see Clause 5.15);

j) position indicator (see Clause 5.16);

k) support members (see Clause 5.19);

l ) noise levels (see Clause 5.21);





m) product analysis (see Clause 7.3);

n) increased absorbed energy values (see Clause 8.4.4.1 );

o) testing of non-pressure-containing parts (see Clause 8.5);

p) plant inspection by the purchaser (see Clauses 9.1.1 and 11.2);

q) a ir seat test (see Clause 9.4.2);

r) non-destructive inspection of welds (see Clause 12);

s) sour service (see Clause 13);

t) suitable packaging (see Clause 14.2.6);

u) report of heat analysis (see Clause 15.2);

v) report of product analysis (see Clause 15.3);

w) report of specific tests (see Clause 15.4);

x) report of pressure tests (see Clause 15.5);

y) report of non-destructive inspection (see Clause 15.6);

z) report of specific sour service items (see Clause 15.7);

aa) specific sealant fittings, inner check fittings, and body cavity drain/vent/bleed fittings; and

ab) other specia l requirements.

4.1.3 Additional requirements

Where appl icable, the purchase order shal l include information concerning the fol lowing items, as

agreed upon by the purchaser and the manufacturer:

a) materia ls of construction (see Clause 6.1 and asterisk note to Table 2);

b) temperature range for non-metal l ic seal ing materia ls (see Clause 5.2.2);

c) intermediate valve sizes (see Clause 5.3);

d) maximum force to operate handwheel (see Clause 5.13 );

e) maximum torque to operate valve (see Clause 5.14);

f) use of lower-strength bolting (see Clause 8.4.1.3 );

g) d imensions and tolerances of non-standard valves (see Clause 10.2);

h) type of non-destructive inspection (see Clause 12);

i) a lternative bolting for valves for sour service (see Clause 13.3);

j) a lternative test method or hardness value for certain fasteners for valves for sour service (see

Clause 13.3 ); and

k) coating on valves (see Clause 14.2.1 ).

� 4.2 Weldability

Buttwelding end valves shal l be capable of being welded in accordance with CAN/CSA-Z662 when using

welding procedure specifications that comply with that Standard.

4.3 Rounding procedure

Except as otherwise required by this Standard, to determine conformance with the specified

requirements, observed or ca lculated values shal l be rounded to the nearest unit in the last right-hand

place of figures used in expressing the l imiting value, in compl iance with the rounding method of

ASTM E29.

4.4 Quality program

The manufacturer shal l comply with the requirements of a qual ity management system.



� 5 DesignNote: For valves required to pass scrapers, inspection tools, or spheres, it is the responsibility of the purchaser to

determine that the valve design satisfies their requirements.

� 5.1 Configurations

Note: The valve sketches in Figures 1 to 11 are examples of valve types that illustrate the basis for the dimensions

specified in Tables 3 to 7. Although based on designs now available, the valve are not endorsement of such designs,

in whole or in part, nor are they intended to discriminate against other designs that comply with the requirements

of this Standard.

5.1.1 Patterns

Gate, bal l , plug, and check valves manufactured to this Standard shal l have one of the fol lowing

patterns:

a) Round-port ful l-bore pattern: this pattern of valve has a circular port through both the body and

the seat area, with a minimum bore as specified in Table 8.

b) Ful l -port pattern: this pattern of valve has a port (approaching pipe size), not necessarily circular,

through the obturator, with the in let and outlet sections tapered so that the d iameter at the pipe

end is round-port ful l -bore.

c) Reduced-port (regular pattern): this pattern of valve is designed as closely as possible for a

streamlined flow. The in let and outlet sections of this pattern of valve are tapered so that the

d iameter at the pipe end is round-port ful l -bore.

d) Reduced-port (short pattern): this pattern of valve appl ies only to plug- and bal l -valve

configurations.

e) Venturi-port pattern: this pattern of valve is designed for minimum pressure loss and has a

configuration that approximates that of a venturi throat. The in let and outlet d iameters of this

valve shal l be round-port ful l-bore.

5.1.2 Gate valves

5.1.2.1

Gate valve types are wedge, double-disc, and conduit (see Figures 1, 2, and 3, respectively).

5.1.2.2

Gate valves shal l be either rising-stem or non-rising-stem.

5.1.2.3

Gate valves shal l be round-port ful l-bore pattern, unless otherwise specified in the purchase order.

5.1.2.4

Gate valves other than round-port ful l -bore pattern and ful l -port pattern shal l be designated by two

nominal sizes, the first being the nominal size of the valve end and the second being the nominal size of

the reduced seat d iameter.

5.1.3 Plug valves (see Figure 4)

5.1.3.1

Plug valve patterns shal l be as specified in the purchase order.





5.1.3.2

Plug valves shal l be either lubricated or non-lubricated.

5.1.4 Ball valves (see Figure 5)

5.1.4.1

Bal l valves shal l be round-port ful l-bore pattern, unless otherwise specified in the purchase order.

5.1.4.2

Bal l valves other than round-port ful l -bore pattern and ful l -port pattern shal l be designated by two

nominal sizes, the first being the nominal size of the valve end and the second being the nominal size of

the reduced seat d iameter.

5.1.5 Check valves

5.1.5.1

Check valve patterns shal l be as specified in the purchase order.

� 5.1.5.2

Check valve types shal l be as fol lows:

a) regular, swing (see Figure 6);

b) fu l l -opening, swing (see Figure 7);

c) single-plate wafer-type — long pattern (see Figure 8);

d) dual-plate wafer-type — long pattern (see Figure 9);

e) single-plate wafer-type — short pattern (see Figure 10); and

f) nozzle-type (see Figure 11).

Notes:

1) For wafer-type check valves, “long pattern” and “short pattern” refer to the end-to-end dimension (see Clause

10. 1 .5).

2) Nozzle-type check valves are also known as piston-type check valves. .

5.2 Pressure ratings

5.2.1

Maximum cold working-pressure ratings shal l be as specified in Table 1 and are appl icable at

temperatures up to and including 120 °C, except as l imited by Clause 5.2.2 . Pressure ratings at

temperatures in excess of 120 °C shal l be as specified in the appl icable instal lation code. Such ratings

shal l apply to a l l va lves, provided that for valves with ra ised face flanges, the gaskets are as specified in

ASME B16.5, Annex C.

5.2.2

I t is possible that the ratings specified in Clause 5.2.1 wil l not apply to non-metal l ic resil ient seal ing or

plastic seal ing materia ls. Unless otherwise agreed upon by the purchaser and the manufacturer, such

materials shal l be capable of withstanding the rated pressure over the temperature range specified by

the purchaser.



5.3 Sizes

Valve sizes shal l be as specified in Tables 3 to 8 unless an intermediate size is specified in the purchase

order.

5.4 End configurations

5.4.1 Flanged ends

5.4.1.1

End flanges shal l be ra ised-face or, if so specified in the purchase order, ring-joint face. Ring-joint-face

flanges shal l be either ra ised-face or ful l -face. Except as a l lowed by Clauses 5.4.1.2 and 5.4.1.3 ,

d imensions, contact face finish, and tolerances shal l be as specified in CSA Z245.12.

5.4.1.2

The transition d imensions from the flanged end to the valve body for integral ly cast or forged ends shal l

be determined by the valve manufacturer and the design stresses shal l not be greater than in an

equivalent weld neck flange in CSA Z245.12.

5.4.1.3

Where required by the valve body design, end flanges may be furnished with tapped holes for flange

bolting. Thread engagement in a pipe flange assembly with tapped holes shal l provide ful l effective

thread engagement (not including the chamfered thread) for a length at least equal to the nominal

d iameter of the thread.

Note: It is possible that headed bolts that are long enough to provide the required thread engagement will bottom

in the tapped hole before developing adequate flange loading. It is therefore important to avoid the use of headed

bolts in flange joints made with such flanges.

5.4.1.4

End flanges shal l be ful ly machine finished on the joint side. The bearing surfaces for bolting shal l be

paral lel within 1° to the flange face; back facing or spot facing can be required to accompl ish such

paral lel ism. Gasket contact surfaces for raised faces shal l have a finish as specified in CSA Z245.12.

5.4.2 Buttwelding ends

Unless otherwise specified in the purchase order, buttwelding ends shal l be as shown in Figure 12, with

the inside d iameter of the buttwelding end and the grade and specified wal l thickness of the matching

pipe being as specified in the purchase order. The land shal l be machined flat within 0.8 mm.

5.4.3 Wafer-type valve ends

Wafer-type valves shal l be suppl ied with finished ends compatible with the specified matching flanges.

5.5 Extended operating gear

Where specified in the purchase order, extended operating gear shal l be furnished, as appropriate, for

whichever of the fol lowing d istances is specified in the purchase order:

a) for a handwheel on a horizontal shaft, the d istance from the centrel ine of the valve bore to the

centrel ine of the handwheel ;

b) for a handwheel on a vertical shaft, the d istance from the centrel ine of the valve bore to the centre

of the rim of the handwheel; and





c) for a power operator, the d istance from the centrel ine of the valve bore to the top of the operator

mounting flange.

5.6 Pressure relief

5.6.1

Where the valve is not inherently capable of rel ieving entrapped pressure, accessible tappings 10 mm

or greater in d iameter shal l be provided by the manufacturer for rel ieving pressure within the body or

bonnet cavity.

5.6.2

Where specified in the purchase order, va lves shal l be equipped with an integral pressure-rel ief device

set to rel ieve any d ifferentia l pressure within the body or bonnet cavity that exceeds a value agreed

upon by the purchaser and the manufacturer. Where requested, the valve manufacturer shal l advise the

purchaser of the opening force required to overcome this d ifferential pressure.

Note: Double-seated valves can entrap liquid in the body cavities, and not all such valves are inherently capable of

relieving the entrapped pressure. Inadequate pressure relief can render valves inoperable because of excessive

forces required to unseat the valve, as well as cause damage to the stem packing, the valve seat, or the valve body

itself.

� 5.7 Drain and bypass connections

5.7.1

The number and location of the drain and bypass connections shal l be at the option of the

manufacturer. Unless otherwise specified in the purchase order the minimum opening size of the drain

and bypass connections shal l be ½” NPT for NPS 2 to NPS 8 and 1” NPT for larger than NPS 8.

5.7.2

Unless otherwise specified in the purchase order, drain and bypass connections shal l be dri l led and

tapped using pipe threads as specified in ASME B1.20.1.

� 5.8 Sealant fittings

Valves that rely on sealant as a primary seal or a secondary backup seal shal l have provision for

in jection of sealant with fittings that meet the fol lowing requirements:

a) The lubricant fitting shal l be of the giant button-head type, of a one-piece body design, and shal l be

of a size consistent with standard North American lubricating devices.

Note: Fittings with significant dimensions conforming to those found on Stewart-Warner “Alemite” giant

button-head fittings are considered standard.

b) The lubricating part shal l be protected by a bal l check device independent of the lubricating fitting,

in order to provide for safe removal or replacement of the fitting when a valve is under l ine

pressure conditions.

c) The number and locations of the fittings shal l be such as to provide proper d istribution and

sufficient deposition of the sealant.

d) Valves that are intended for buried service or that are intended to be otherwise inaccessible shal l

have sealant piping extended to a convenient and accessible location. The piping shal l be

adequately supported and made of a materia l compatible with the valve and shal l be capable of

withstanding the maximum l ine pressure plus the sealant in jection pressure. Heavier wal l

thicknesses shal l be considered if the extended piping connection to the valve is threaded.



e) The sealant fitting shal l be furnished with a cap which possesses vent holes to release potential

leakage prior to complete removal of the cap.

Note: The sealant fitting cap threads and ball depth design may be in accordance with AWHEM TR0701 to

accommodate a pressure relieving tool.

5.9 Bonnet and cover flanges

The bearing surfaces for bolting shal l be paral lel within 1° to the flange face; back facing or spot facing

can be required to accompl ish such paral lel ism.

5.10 Stem packing

Stem packing shal l be replaceable.

Note: Not all valve designs allow the packing to be replaced under line pressure or without removing the topworks.

5.11 Wrenches or bars

Where specified in the purchase order, wrenches or bars shal l be suppl ied.

5.12 Handle extensions

Plug- and bal l -valve wrenches may be of an integral design or consist of a head that fits on an obturator

stem designed to take an extended handle. Such head designs shal l provide for permanent attachment

of the extended section. Where specified in the purchase order, handle extensions shal l be furnished.

5.13 Handwheels

Where required for valve operation, a handwheel shal l be furnished with each valve. Where specified in

the purchase order, the force required to operate the handwheel shal l not exceed the value specified in

the purchase order.

5.14 Torque

Where specified in the purchase order, the torque required to operate the valve at the design

conditions shal l not exceed the value specified in the purchase order.

5.15 Locking device

Where specified in the purchase order, va lves shal l be designed to accommodate a device for locking

the valve in the open position or the closed position, or both.

5.16 Position indicator

Where specified in the purchase order, gate, plug, and bal l valves shal l be furnished with indicators to

show the ful ly open and ful ly closed positions of the valve.

5.17 Valve-closing direction indicator

Where the valve-closing d irection is other than clockwise, the valve-closing d irection shal l be clearly

marked.

5.18 Stem protection

The stem of a rising-stem gate valve shal l be protected by a dustproof enclosure.

5.19 Support members

Where specified in the purchase order, va lves shal l be suppl ied with instal lation support members.





5.20 Lifting lugs

Valves NPS 16 and larger shal l be fitted with appropriate l ifting lugs.

5.21 Noise levels

Where noise levels are a consideration, on request from the purchaser, the manufacturer shal l provide

estimated noise levels for the flow conditions specified.

6 Materials and manufacture

6.1 Materials for pressure-containing parts other than bolting and other fasteners

6.1.1 Pressure-containing parts other than stems and shafts

Pressure-containing parts other than stems and shafts shal l be manufactured from one or more of the

materials specified in Table 2, unless otherwise agreed upon by the purchaser and the manufacturer. I f

a material not specified in Table 2 is selected, it shal l meet a written specification and a l l other

requirements of this Standard. Two or more materia ls may be fabricated into a single weldment.

6.1.2 Stems and shafts

Materia l for stems and shafts shal l be selected by the manufacturer and be in accordance with a

material specification written by the manufacturer or a publ ished materia l standard or specification.

These documents shal l include mechanical properties and chemical composition requirements.

6.2 Bolting and other fasteners for pressure-containing parts

6.2.1

Carbon steel and low-al loy steel bolting and other fasteners used to join pressure-containing parts shal l

be as specified in written specifications. Except as a l lowed by Clause 8.4.1.3 , such materia ls shal l have

mechanical properties not less than ASTM A193/A193M, Grade B7, or ASTM A354, Grade BC, and nuts

shal l have mechanical properties not less than ASTM A194/A194M, Grade 1.

6.2.2

Bolting and other fastener materia ls, other than carbon or low-al loy steel , may be used provided that

such materia ls are as specified in the requirements of a written specification and the valve

manufacturer determines that such materia ls are suitable for the intended service.

6.3 Materials for miscellaneous metal parts

Miscel laneous metal parts such as yokes, yoke nuts, glands, gland bushings, gates, bal ls, plugs, d iscs,

seats, handwheels, gearing, and motor-drive attachments shal l be made of materia ls that are suitable

for the intended service and are selected by the manufacturer.

6.4 Materials for non-metallic parts

Non-metal l ic parts such as packing, seals, seat rings, sealant, and lubricants shal l be made of materia ls

that are suitable for the intended service and are selected by the manufacturer.

Notes:

1) The life expectancy of non-metallic materials used in the valve should be considered.

2) The sealant used to stop leakage effectively should have sufficient

a) resistance to solubility in the line fluid;



b) plasticity throughout the valve's operating temperature range;

c) load-bearing properties; and

d) film strength.

6.5 Welding qualification

6.5.1

Welds shal l be made

a) using welding procedure specifications qual ified in accordance with the ASME Boiler and Pressure

Vessel Code, Section IX; and

b) by welders qual ified as specified in the ASME Boiler and Pressure Vessel Code, Section IX.

6.5.2

For materia ls whose specification is not included in the Table of “P” numbers in the ASME Boiler and

Pressure Vessel Code, Section IX, qual ification tests shal l be conducted for each materia l .

6.5.3

For Category I I valves, the welding procedure specification qual ification tests shal l include Charpy

V-notch impact tests of both the weld metal and the heat-affected zone. Where specified by the

purchaser, specimen quantity, location, and orientation shal l be as specified in Paragraph UG 84 of the

ASME Boiler and Pressure Vessel Code, Section VI I I , Division 1. The absorbed energy shal l be as specified

in Clause 8.4.4.1 .

� 6.6 Calibration of heat treating equipment

A recommended practice for the cal ibration of heat treating equipment is included in Annex C.

7 Chemical test requirements

7.1 General

Except as otherwise required by this Standard, the methods, practices, and definitions pertaining to

chemical analysis shal l be as specified in ASTM A751.

7.2 Heat analysis

The requirements for heat analysis shal l be as specified in the appl icable standard or specification in

Clauses 6.1 and 6.2.

7.3 Product analysis

Where product analysis is specified in the purchase order, the product analysis shal l be as specified in

the appl icable standard or specification in Clause 6.1.





8 Mechanical test requirements

8.1 Selection of test specimens for pressure-containing parts

� 8.1.1 General

Test specimens for mechanical tests shal l be representative of the part in the finished valve.

8.1.2 Mechanical properties achieved by cold working

Test specimens shal l be in the same heat treated condition ( including any stress-rel ieving) as the parts

they represent.

8.1.3 Mechanical properties achieved by a process other than cold working

8.1.3.1

Except as a l lowed by Clauses 8.1.3.2 and 8.1.3.3 , test specimens shal l be in the same heat treated

condition ( including any stress-rel ieving) as the parts they represent.

8.1.3.2

I t shal l not be necessary for parts to be retested for tensi le properties after a stress-rel ieving operation,

provided that the stress-rel ieving temperature was at, or lower than, the temperature at which the

original test specimens representative of the parts were heat treated.

8.1.3.3

I t shal l not be necessary for parts to be retested for notch-toughness properties after a stress-rel ieving

operation, provided that

a) such parts were tempered or stress rel ieved prior to the original testing, and the temperature at

which the final stress-rel ieving operation was carried out was at, or lower than, the temperature at

which the parts were tempered or stress rel ieved prior to the original testing; or

b) the notch-toughness properties of such parts determined prior to such a stress-rel ieving operation

is at least three times the appl icable value specified in Clause 8.4.4.1 .

8.2 Defective test specimens

For any of the mechanical tests specified in Clauses 8.3 and 8.4, specimens showing defective

preparation or materia l imperfections unrelated to the intent of the particular mechanical test, whether

observed before or after the testing, may be d iscarded, and replacements shal l be considered as

original specimens.

8.3 Tension tests

8.3.1 General

Except as otherwise specified in this Standard, test specimens and testing procedures shal l be as

specified in ASTM A370. Testing shal l be conducted with the test specimens at room temperature.

8.3.2 Requirements

The tensi le properties of each pressure-containing part in the valve shal l be as specified in the

appl icable standard or specification in Clauses 6.1 and 6.2.



8.4 Notch-toughness tests — Category II valves

8.4.1 General

8.4.1.1

Except for anci l lary components smal ler than NPS 2, anci l lary piping smal ler than 60.3 mm OD, and

specific bolting materia l (see Clause 8.4.1.3 ), steel materia l used for pressure-containing parts shal l have

proven notch-toughness properties.

8.4.1.2

Proven notch-toughness properties for stems and shafts shal l be as specified in Clause 8.4.4.1 . Proven

notch-toughness properties shal l not be required for stems and shafts manufactured from austenitic

stainless steel or austenitic n ickel a l loy materials.

8.4.1.3

In order to meet the notch-toughness properties specified in Clause 8.4.4.1 , ASTM A320/A320M Grade

L7 or L7M bolting may be used to join the pressure-containing parts. Proven notch-toughness properties

shal l not be required for bolts 13 mm or less in d iameter, fasteners 13 mm or less in d iameter, and nuts

of any size. Where specified in the purchase order, lower-strength bolting may be used, provided that

the cold working-pressure rating is as specified in Clause 5.2.1 .

8.4.1.4

Charpy V-notch impact tests shal l be conducted and evaluated as specified in ASTM A370. An impact

test shal l consist of testing three adjacent test specimens taken from a single test coupon. The result

shal l be the average of the results of the three test specimens.

8.4.1.5

The test temperature should be as specified in the purchase order, except that a lower test temperature

may be used if the specified absorbed energy requirements are met.

8.4.2 Test specimen orientation

The test specimen orientation shal l be as specified in the appl icable standard or specification in

Clauses 6.1 and 6.2. Where the appl icable standard or specification does not specify an orientation, the

orientation shal l be at the option of the manufacturer.

8.4.3 Test specimen size

The test specimens shal l be ful l -size, unless the size of the part or the testing machine energy capacity

d ictates the use of subsize test specimens; in such cases, the largest obtainable subsize test specimen

from those specified in Table 9 shal l be used.

8.4.4 Requirements

8.4.4.1

The absorbed energy (based on ful l -size test specimens) for each Charpy V-notch impact test shal l be

equal to or greater than

a) 18 J , for parts that are lower than Grade 359;

b) 27 J , for parts that are Grade 359 or h igher; or

c) a h igher value, if specified in the purchase order.





8.4.4.2

Where subsize test specimens are used, the minimum energy absorption value requirement shal l be

that specified for ful l -size test specimens times the appl icable reduction ratio specified in Table 9.

8.5 Testing of non-pressure-containing parts

Where specified in the purchase order, non-pressure-containing parts shal l be tested as specified.

9 Pressure test requirements

9.1 General

9.1.1

Pressure tests shal l be made on the completed valves before shipment from the manufacturer's plant.

Where specified in the purchase order, the manufacturer shal l conduct such tests in the presence of the

purchaser's representative.

9.1.2

Valves shal l not be painted or otherwise coated with materia l capable of seal ing against leakage before

the shel l pressure test during manufacture is completed.

9.1.3

Tests shal l be performed as specified in the manufacturer's written procedures, which shal l be made

available to the purchaser on request.

9.1.4

Prior to shipment, a l l pressure-test l iquids shal l be removed from the valve to avoid the risk of

subsequent damage due to rusting or freezing.

9.1.5

Except where the sealant is the primary means of seal ing, pressure tests shal l be made with the bal l ,

gate, or plug and a l l seats free of sealant. I f necessary for assembly, a lubricant, such as a l ightweight

industria l oi l , may be used.

9.1.6

Shel l tests shal l be performed prior to seat tests but after final welding and heat treating of the

pressure-containing parts.

9.2 Test equipment

9.2.1

Test equipment shal l not subject the valve to external ly appl ied stresses that could affect the results of

the tests. The valve shal l be free of a ir while it is tested with a l iquid.



9.2.2

Where pressure recorders or gauges are used, the pressure range of the instrument shal l not exceed

twice the shel l test pressure. Where temperature charts are used, the temperature range shal l be

capable of indicating 1 °C fluctuations.

9.3 Shell test

Valves shal l be subjected to a hydrostatic shel l test and shal l show no leakage or permanent d istortion

under the test pressure when both ends are blanked and the obturator is partia l ly open. The test

pressure shal l be as specified in Table 10 and the test duration shal l be as specified in Table 11. For

valves larger than NPS 36, the pressure and temperature of the pressure-test l iquid shal l be

continuously recorded.

9.4 Seat tests

9.4.1 Hydrostatic seat tests

9.4.1.1

Valves shal l be subjected to a hydrostatic seat test and, except as a l lowed by Clause 9.4.1.2 , shal l show

no leakage during the test period or permanent d istortion under the test pressure when the test is

appl ied successively on each side of the gate, plug, or bal l and on the appropriate side of a valve

designed to operate in one d irection only with the other side open to the atmosphere. Body and bonnet

cavities shal l be fi l led with the pressure-test l iquid. Pressure shal l be appl ied successively to each side of

the closed valve and the valve subsequently checked for leakage. For valves with independent double

seating, such as a two-piece obturator or double-seated valves, testing may be conducted by applying

pressure to the volume between the seats; there shal l be no leakage across either seat. The test

pressure shal l be as specified in Table 10 and the test duration shal l be as specified in Table 11.

� 9.4.1.2

Valves having metal-to-metal seats that could be incapable of meeting the no-leakage requirement

specified in Clause 9.4.1.1 shal l be tested as specified in Clause 9.4.1.1 , except that the maximum

permissible rate of l iquid leakage per mil l imetre of nominal va lve size shal l be 0.4 mL/h. For reduced-

port valves, the nominal bore size of the reduced port shal l be used to determine maximum permissible

leakage.

9.4.2 Air seat tests

9.4.2.1

Where specified in the purchase order, va lves shal l be subjected to an a ir seat test subsequent to, and

in a manner identical to that specified for, hydrostatic testing in Clause 9.4.1.1 . The pressure for such a ir

tests shal l be at least 550 kPa, and the test duration shal l be as specified in Table 11. Except as a l lowed

by Clause 9.4.2.2 , valves subjected to an a ir seat test shal l show no leakage.

� 9.4.2.2

Valves having metal-to-metal seats shal l be tested as specified in Clause 9.4.2.1 , except that the

maximum permissible rate of a ir leakage per mil l imetre of nominal valve size shal l be 110 mL/h. For

reduced-port valves, the nominal bore size of the reduced port shal l be used to determine maximum

permissible leakage.





10 Dimensions and tolerances

10.1 Dimensions and tolerances of standard valves

10.1.1 Standard round-port full-bore pattern valves

The bore sizes and tolerances of standard round-port ful l -bore pattern valves shal l be as specified in

Table 8.

10.1.2 Standard gate valves

Standard wedge, double-disc, and conduit gate valves shal l have face-to-face and end-to-end

d imensions and tolerances as specified in Table 3. Reduced-bore gate valves shal l have the same face-

to-face and end-to-end d imensions as fu l l-bore gate valves in the same size and nominal pressure class.

10.1.3 Standard plug valves

Standard plug valves shal l have face-to-face and end-to-end d imensions and tolerances as specified in

Table 4.

10.1.4 Standard ball valves

Standard bal l valves shal l have face-to-face and end-to-end d imensions and tolerances as specified in

Table 5.

10.1.5 Standard check valves

Standard check valves shal l have face-to-face and end-to-end d imensions and tolerances as specified in

Tables 6 and 7.

10.2 Dimensions and tolerances of non-standard valves

Valve d imensions not specified in Tables 3 to 8 are considered to be non-standard. Non-standard

d imensions and their tolerances shal l be as agreed upon by the purchaser and the manufacturer.

11 Inspection, work quality, and repair of valves containing defects

11.1 Plant inspection

Finished valves shal l be free, both internal ly and external ly, of loose mil l scale, foreign matter, oi l , and

grease, and shal l be clean and dry for final inspection. Valves shal l be visual ly inspected to detect

defects and to determine compl iance with the d imensional and work qual ity requirements.

11.2 Inspection notice

Where it is specified in the purchase order that the inspector representing the purchaser intends to

inspect the valves or witness the tests at the manufacturer's plant, the manufacturer shal l give the

purchaser reasonable notice of the production schedule.

11.3 Plant access

While work on the purchaser's order is being performed, the inspector representing the purchaser shal l

have unrestricted entry at a l l times to a l l parts of the manufacturer's plant concerned with the

manufacture of the ordered valves. The manufacturer shal l afford the inspector a l l reasonable faci l ities

to a l low the inspector to verify that the valves are being manufactured, sampled, tested, and inspected



as specified in this Standard and the purchase order. Inspections shal l be conducted without

unnecessary interference with normal plant operation.

11.4 Work quality

11.4.1

Valves shal l be free of defects and shal l have a competently produced finish.

11.4.2

Defects in pressure-containing parts shal l be as defined in the appl icable standard or specification in

Clause 6.1. Defects in fabrication welds shal l be as defined in the ASME Boiler and Pressure Vessel Code ,

Section VI I I , Division 1.

11.5 Repair of valves containing defects

11.5.1

Pressure-containing parts containing defects shal l be rejected or repaired as specified in the appl icable

standard or specification in Clause 6.1. Fabrication welds containing defects shal l be rejected or

repaired as specified in the ASME Boiler and Pressure Vessel Code , Section VI I I , Division 1.

11.5.2

Where grinding is performed, it shal l be done in a competent manner to ensure no damage is done to

the surrounding area and to provide gradual transitions not resulting in a stress concentrator.

12 Non-destructive inspection requirementsWhere specified in the purchase order, pressure-containing welds shal l be radiographical ly or

u ltrasonical ly inspected. Such welds shal l comply with Paragraph UW 51 of the ASME Boiler and

Pressure Vessel Code , Section VI I I , Division 1, or Appendix 12 of the ASME Boiler and Pressure Vessel

Code , Section VI I I , Division 1. Where practicable, the ful l length of such welds shal l be inspected.

13 Sour service

13.1

Where sour service is specified in the purchase order, the requirements of Clauses 1 to 12, 14, and 15

shal l apply, except when such requirements are modified by Clauses 13.2 to 13.8.

Note: Materials, including welding consumables, and manufacturing procedures should be selected in order to

avoid microstructures in the weld metal, heat-affected zones, and parent metal that are detrimental to sour

service.

� 13.2

Except as a l lowed by Clause 13.6 and Table 12, material requirements for valves shal l be

a) as specified in ISO 15156-2:2015 or NACE MR0175/ISO 15156-2:2015 Clause A.2; or

b) as specified in ISO 15156-3 or NACE MR0175/ISO 15156-3.

Note: Such material requirements include chemical composition, mechanical properties, material processing, and

heat treatment. Material selected using NACE MR0175/ISO 15156 is resistant to cracking in defined H2S containing





environments in oil and gas production, but not necessarily immune to cracking under all service conditions. It is

the equipment user's responsibility to select the material suitable for the intended service.

13.3

Unless otherwise specified in the purchase order, pressure-containing steel bolting shal l be as specified

in ASTM A193/A193M, Grade B7M, or ASTM A320/A320M, Grade L7M, and nuts shal l be as specified in

ASTM A194/A194M, Grade 2HM or Grade 7M. Hardness for fasteners specified to the requirements of

an a lternate standard on the purchase order shal l be determined in accordance with the testing

requirements specified for Grade B7M in ASTM A193/A193M and shal l not exceed HRC 22.

13.4

For each welding procedure specification, a separate procedure qual ification record shal l be developed

for wrought material welds, cast material welds, and cast-to-wrought materia l welds, as appl icable.

13.5

The welding procedure specification shal l be qual ified under actual production conditions or under

simulated production conditions, including weld cool ing rates.

� 13.6

Macrohardness surveys on a cross-section of the procedure qual ification weld required by

Clauses 6.5 and 13.5 may be performed as specified in ASTM E18 or ASTM E384 using a load of 5 kg or

10 kg. Hardness values shal l be converted as specified in ASTM E140. The location and minimum

number of hardness impressions shal l be as defined in Clause 7.3.3.3 of ISO 15156-2:2015 or

NACE MR0175/ISO 15156-2:2015. The macrohardness results at any location shal l not exceed 22 HRC or

250 HV.

� 13.7

Where the welding procedure specification does not include post-weld heat treatment, microhardness

surveys on a cross-section of the procedure qual ification weld required by Clauses 6.5 and 13.5 shal l be

performed as specified in ASTM E384. The location and minimum number of hardness impressions shal l

be as defined in Clause 7.3.3.3 of ISO 15156-2:2015 or NACE MR0175/ISO 15156-2:2015. The

microhardness shal l not exceed 248 HV, using a Vickers indenter with a load of 500 g or less. Conversion

from other hardness scales shal l not be permitted.

13.8

For pressure-containing parts other than stems, shafts, bolting, and other fasteners, materials with a

specified minimum yield strength higher than 485 MPa shal l not be used.

14 Marking and shipping

14.1 Marking

14.1.1

The manufacturer shal l mark the valves as specified in Table 12. Additional markings desired by the

manufacturer or requested by the purchaser may be used.



� 14.1.2

Two nameplates shal l be provided for valves intended for buried service, one for the extension and one

for the body. One nameplate shal l be affixed to the portion of the extension that wil l be at or above

ground level . The information thereon shal l be the same as that on the body nameplate.

14.2 Preparation for shipment

14.2.1

Valves other than those having inherent corrosion resistance shal l be given a protective coating. Unless

otherwise specified in the purchase order, the selection of the coating shal l be at the option of the

manufacturer.

14.2.2

Threaded and machined surfaces subject to corrosion shal l be wel l protected by grease or other suitable

inhibitors that wil l remain in place and wil l not deteriorate under atmospheric conditions before or

during shipment.

14.2.3

Valves shal l be suitably protected for shipment in a manner that wil l prevent injury to the seating

surfaces, the entire contact faces of any flanges, and any buttwelding ends.

14.2.4

Openings shal l be covered to exclude d irt and foreign materia l from the interior of the valve.

14.2.5

Any items to be shipped separately or removed from the valve for shipment shal l be properly identified

and adequately secured to prevent loss.

14.2.6

Where specified in the purchase order, va lves shal l be suitably packed to prevent damage by sa lt a ir or

moisture.

15 Certification

15.1

The manufacturer shal l furnish a certificate of compl iance for each order item.

Note: A single document containing certificate of compliance information and test report information may be used.

15.2

Where specified in the purchase order, the manufacturer shal l furnish a report of the heat analysis for

each heat of steel suppl ied for the specified valve parts.

15.3

Where specified in the purchase order, the manufacturer shal l furnish a report of the product analysis

for each heat of steel suppl ied for the specified valve parts.





15.4

Where specified in the purchase order, the manufacturer shal l furnish a report of the results of any of

the tests (see Clauses 8.3 to 8.5) specified by the purchaser to be reported, except that actual test

results need not be reported for bolting materia l .

15.5

Where specified in the purchase order, the manufacturer shal l furnish a report of the pressure tests

performed. Such reports shal l include the test pressures and test durations, and, where test charts are

required by Clause 9.3 , a copy of the test charts.

15.6

Where specified in the purchase order, the manufacturer shal l furnish a report outl ining the type of

non-destructive inspection used (see Clause 12) and the results of such inspection.

15.7

Where specified in the purchase order, the manufacturer shal l furnish a report of any sour service items

specified by the purchaser to be reported.

15.8

Reports of Charpy V-notch tests shal l include the fol lowing:

a) the test specimen size;

b) the test specimen orientation, if required by the appl icable materia l specification;

c) the test temperature; and

d) the actual test results for each test specimen.

Table 1

Maximum cold working-pressure ratings(See Clauses 1 .2 .2 , 4.1 .1 , and 5.2 .1 .)

Nominal pressure class Maximum cold working- pressure rating, kPa

PN 20 1 900

PN 50 4 960

PN 68 6 620

PN 100 9 930

PN 150 14 890

PN 250 24 820

PN 420 41 370

Note: “PN” means “pression nominale” (nominal pressure), and the PN system of nominal pressure class

designation is contained in Standards prepared by the International Organization for Standardization (ISO).The

numerical part of the designation approximates the maximum cold working pressure rating in bars (100 kPa) . (See

also Table B. 1 . )



Table 2

Material specifications(See Clauses 4.1 .3 and 6.1 .1 .)

Product

Applicable Standards and Specifications

Bodies, bonnets, and covers Valve end flanges Buttwelding ends

Castings ASTM A216 Gr. WCB ASTM A216 Gr. WCB ASTM A216 Gr. WCB

ASTM A216 Gr. WCC ASTM A216 Gr. WCC ASTM A216 Gr. WCC

ASTM A217 Gr. WC1 ASTM A217 Gr. CA15 ASTM A217 Gr. WC1

ASTM A217 Gr. CA15 ASTM A351 Gr. CF3N ASTM A352 Gr. LCB

ASTM A351 Gr. CF3N ASTM A351 Gr. CF8C ASTM A352 Gr. LCC

ASTM A351 Gr. CF8C ASTM A351 Gr. CF8M ASTM A487 Gr. 1, Cl . A

ASTM A351 Gr. CF8M ASTM A352 Gr. LCB ASTM A487 Gr. 1, Cl . B

ASTM A352 Gr. LCB ASTM A352 Gr. LCC ASTM A757 Gr. A1Q

ASTM A352 Gr. LCC ASTM A352 Gr. LC2 ASTM A757 Gr. A2Q

ASTM A352 Gr. LC1 ASTM A352 Gr. LC2.1

ASTM A352 Gr. LC2 ASTM A352 Gr. LC3

ASTM A352 Gr. LC2.1 ASTM A487 Gr. 1, Cl . A

ASTM A352 Gr. LC3 ASTM A487 Gr. 1, Cl . B

ASTM A487 Gr. 1, Cl . A ASTM A487 Gr. 2, Cl . A

ASTM A487 Gr. 1, Cl . B ASTM A487 Gr. 2, Cl . B

ASTM A487 Gr. 2, Cl . A ASTM A487 Gr. 4, Cl . A

ASTM A487 Gr. 2, Cl . B ASTM A487 Gr. 4, Cl . B

ASTM A487 Gr. 4, Cl . A ASTM A487 Gr. 4, Cl . E

ASTM A487 Gr. 4, Cl . B ASTM A487 Gr. CA6NM

ASTM A487 Gr. 4, CI . C ASTM A487 Gr. CA15M

ASTM A487 Gr. 4, Cl . E ASTM A757 Gr. A2Q

ASTM A487 Gr. CA6NM ASTM A757 Gr. B2N

ASTM A487 Gr. CA15M ASTM A757 Gr. B2Q

ASTM A757 Gr. A1Q ASTM A757 Gr. B3N

ASTM A757 Gr. A2Q ASTM A757 Gr. B4Q

ASTM A757 Gr. B2N ASTM A757 Gr. C1Q

ASTM A757 Gr. B2Q ASTM A757 Gr. D1N1

ASTM A757 Gr. B3N ASTM A757 Gr. D1N2

ASTM A757 Gr. B4Q ASTM A757 Gr. D1N3

ASTM A757 Gr. C1Q ASTM A757 Gr. D1Q1

ASTM A757 Gr. D1N1 ASTM A757 Gr. D1Q2

(Continued)





Table 2 (Continued)

Product



ASTM A757 Gr. D1Q1 ASTM A757 Gr. D1Q3

Castings (continued)

ASTM A757 Gr. D1N2 ASTM A757 Gr. E1Q

ASTM A757 Gr. D1Q2 ASTM A757 Gr. E2N1

ASTM A757 Gr. D1N3 ASTM A757 Gr. E2N3

ASTM A757 Gr. D1Q3 ASTM A757 Gr. E2Q1

ASTM A757 Gr. E1Q ASTM A757 Gr. E2Q2

ASTM A757 Gr. E2N1 ASTM A757 Gr. E2Q3

ASTM A757 Gr. E2N3 ASTM A757 Gr. E3N

ASTM A757 Gr. E2Q1

ASTM A757 Gr. E2Q2

ASTM A757 Gr. E2Q3

ASTM A757 Gr. E3N

Forgings ASTM A105 ASTM A105 ASTM A105

ASTM A181 Cl . 60 ASTM A181 Cl . 70 ASTM A181 Cl . 70

ASTM A181 Cl . 70 ASTM A182 Gr. F2 ASTM A182 Gr. F1

ASTM A182 Gr. F1 ASTM A182 Gr. F11 ASTM A350 Gr. LF1

ASTM A182 Gr. F2 ASTM A182 Gr. F12 ASTM A350 Gr. LF2

ASTM A182 Gr. F11 ASTM A182 Gr. F51 ASTM A694

ASTM A182 Gr. F12 ASTM A182 Gr. F316 CSA Z245.11

ASTM A182 Gr. F51 ASTM A350 Gr. LF2

ASTM A182 Gr. F316 ASTM A350 Gr. LF3

ASTM A350 Gr. LF1 ASTM A694

ASTM A350 Gr. LF2 ASTM A707

ASTM A350 Gr. LF3 CSA Z245.12

ASTM A541 Cl . 1

ASTM A541 Cl . 4

ASTM A694

CSA Z245.11

CSA Z245.12

Rolled plates and shapes ASTM A36 ASTM A203 Gr. E* ASTM A36

ASTM A203 Gr. E ASTM A515 Gr. 70* ASTM A242 (for welding)

ASTM A242 (for welding) ASTM A516 Gr. 70* ASTM A515

ASTM A285 Gr. B ASTM A537 Cl . 1* ASTM A516

ASTM A285 Gr. C ASTM A537 Cl . 2* ASTM A537 Cl . 1

(Continued)



Table 2 (Concluded)

Product



ASTM A515 ASTM A737* ASTM A572

Rolled plates and shapes (continued)

ASTM A516 ASTM A633 Gr. A

ASTM A537 Cl . 1 ASTM A633 Gr. C

ASTM A537 Cl . 2 ASTM A737 Gr. B

ASTM A572 ASTM A737 Gr. C

ASTM A633 Gr. A CSA G40.21 Gr. 260W

ASTM A633 Gr. C CSA G40.21 Gr. 260WT

ASTM A633 Gr. D CSA G40.21 Gr. 300W

ASTM A710 CSA G40.21 Gr. 300WT

ASTM A737 Gr. B CSA G40.21 Gr. 350A

ASTM A37 Gr. C CSA G40.21 Gr. 350AT

CSA G40.21 Gr. 260W CSA G40.21 Gr. 350W

CSA G40.21 Gr. 260WT CSA G40.21 Gr. 350WT

CSA G40.21 Gr. 300W

CSA G40.21 Gr. 300WT

CSA G40.21 Gr. 350A

CSA G40.21 Gr. 350AT

CSA G40.21 Gr. 350W

CSA G40.21 Gr. 350WT

Pipe† API Spec 5L API Spec 5L

ASTM A53 ASTM A53

ASTM A106 Gr. A ASTM A106 Gr. B

ASTM A106 Gr. B ASTM A333 Gr. 1

ASTM A333 Gr. 1 ASTM A333 Gr. 3

ASTM A333 Gr. 3 ASTM A333 Gr. 6

ASTM A333 Gr. 6 ASTM A381

ASTM A381 CSA Z245.1

CSA Z245.1

* The use of plate material for flanges shall be subject to agreement between the purchaser and the manufacturer.† Only seamless and submerged arc welded pipe may be used.

Notes:

1) The grades of steel indicated for buttwelding ends represent materials that are generally suitable for field

welding into pipeline systems, but do not necessarily possess equal degrees of weldability.

2) Not all materials listed in this Standard have suitable properties for all operating conditions.

3) The SI (metric) designations in ASTM Standards with dual-dimension designations (e.g. , ASTM A182/A182M)

are omitted from this Table. See Clause 2 for complete designations.





Table 3

Standard flanged end and buttwelding end gate valves, rising stem

and non-rising stem types: Face-to-face and end-to end-dim

ensions

(See C

lause

s 5.1, 5

.3, 10.1.2, and 10.2, Table 1

2, and Figure

s 1 to 3.)

Nominal valve

size

Face-to-face (A) and end-to-end (B and C) dim

ensions, m

m

PN 20

raised face,

A

PN 20

buttwelding

end, B

PN 20 ring

and groove, C

PN 50

raised face,

A

PN 50

buttwelding

end, B

PN 50 ring

and groove, C

PN 68

raised face,

A

PN 68

buttwelding

end, B

PN 68

ring and

groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

177.8

190.5

203.2

228.6

266.7

215.9

241.3

282.6

304.8

403.2

190.5

203.2

215.9

241.3

279.4

215.9

241.3

282.6

304.8

403.2

215.9

241.3

282.6

304.8

403.2

231.8

257.2

298.5

320.7

419.1

292.1

330.2

355.6

406.4

495.3

292.1

330.2

355.6

406.4

495.3

295.3

333.4

358.8

409.6

498.5

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

292.1

330.2

355.6

381.0

406.4

419.1

457.2

501.7

571.5

609.6

304.8

342.9

368.3

393.7

419.1

419.1

457.2

501.7

762.0

838.2

419.1

457.2

501.7

762.0

838.2

435.0

473.1

517.5

777.9

854.1

596.9

673.1

762.0

825.5

901.7

596.9

673.1

762.0

825.5

901.7

600.1

676.3

765.2

828.7

904.9

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

431.8

457.2

508.0

508.0

558.8

660.4

711.2

762.0

812.8

863.6

444.5

469.9

520.7

520.7

—

914.4

990.6

1092.2

1143.0

1244.6

914.4

990.6

1092.2

1143.0

1244.6

930.3

1009.7

1114.4

1165.2

1270.0

977.9

1054.1

1143.0

1231.9

1308.1

977.9

1054.1

1143.0

1231.9

1308.1

981.1

1060.5

1152.5

1241.4

1320.8

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

609.6

660.4

711.2

762.0

812.8

914.4

914.4

965.2

1016.0

1016.0

—

—

—

—

—

1346.2

1397.0

1524.0

1625.6

1727.2

1346.2

1397.0

1524.0

1625.6

1727.2

1371.6

1422.4

1552.6

1654.2

1755.8

1397.0

1524.0

1651.0

1778.0

1879.6

1397.0

1524.0

1651.0

1778.0

1879.6

1409.7

1536.7

1666.9

1793.9

1895.5

(Continued)



Table 3 (Continued)

Nominal valve size


ensions, m

m

PN 100

raised face,

A

PN 100

buttwelding

end, B

PN 100 ring

and groove,

C

PN 150

raised face,

A

PN 150

buttwelding

end, B

PN 150 ring

and groove,

C

PN 250

raised face,

A

PN 250

buttwelding

end, B

PN 250 ring

and groove,

C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

292.1

330.2

355.6

431.8

558.8

292.1

330.2

355.6

431.8

558.8

295.3

333.4

358.8

435.0

562.0

368.3

419.1

381.0

457.2

609.6

368.3

419.1

381.0

457.2

609.6

371.5

422.3

384.2

460.4

612.8

368.3

419.1

469.9

546.1

704.9

368.3

419.1

469.9

546.1

704.9

371.5

422.3

473.1

549.3

711.2

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

660.4

787.4

838.2

889.0

990.6

660.4

787.4

838.2

889.0

990.6

663.6

790.6

841.4

892.2

993.8

736.6

838.2

965.2

1028.7

1130.3

736.6

838.2

965.2

1028.7

1130.3

739.8

841.4

968.4

1038.2

1139.8

831.9

990.6

1130.3

1257.3

1384.3

831.9

990.6

1130.3

1257.3

1384.3

841.4

1000.1

1146.2

1276.4

1406.5

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

1092.2

1193.8

1295.4

1397.0

1447.8

1092.2

1193.8

1295.4

1397.0

1447.8

1095.4

1200.2

1304.9

1406.5

1460.5

1219.2

1320.8

—

1549.4

—

1219.2

1320.8

—

1549.4

—

1231.9

1333.5

—

1568.5

—

1536.7

1663.7

—

1943.1

—

1536.7

1663.7

—

1943.1

—

1558.9

1685.9

—

1971.7

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

1549.4

1651.0

1778.0

1930.4

2082.8

1549.4

1651.0

1778.0

1930.4

2082.8

1562.1

1663.7

1793.9

1946.3

2098.7

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)





Table 3 (Concluded)

Nominal valve size


ensions, m

m

PN 420 raised face, A

PN 420 buttwelding end, B

PN 420 ring and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

450.9

508.0

577.9

673.1

914.4

450.9

508.0

577.9

673.1

914.4

454.0

514.4

584.2

682.6

927.1

NPS 8

NPS 10

NPS 12

1022.4

1270.0

1422.4

1022.4

1270.0

1422.4

1038.2

1292.2

1444.6

Note

s:

1)

Reduced bore gate valves have the same face-to-face and end-to-end dim

ensions as full bore gate valves in the same size and nominal pressure class.

2)

Reduced bore gate valves are designated by tw

o nominal sizes (see Clause 5.1.2.4). As it is not practicable to include all the desirable size combinations of

reduced bore gate valves in this Table, and in order to give freedom of choice, no combination is specifically listed. In using this Table for reduced bore

valves, the first number is the nominal valve size, which determ

ines the face to face and end to end dim

ensions.

3)

Dim

ensions specified in this Table are standard. Valves with shorter or longer dim

ensions may be purchased under this Standard, subject to agreement

betw

een the purchaser and the m

anufacturer, provided that all other requirements of this Standard are m

et and that the valves are clearly m

arked on the

nameplate as 6D4 w

ith the face to face or end to end dim

ension.

4)

Dim

ensions for valves with one buttwelding end and one flanged end shall be determ

ined by adding one half the length of the buttwelding end valve to

one half the length of the flanged end valve of the same size and nominal pressure class as specified in this Table.

5)

Tolerance is ± 1.6 m

m for NPS 10 and smaller valves and ± 3.2 m

m for valves larger than NPS 10.



Table 4

Standard flanged-end and buttwelding-end plug valves: Face-to-face and end-to-end dim

ensions

(See Clause

s 5.1, 5.3, 1

0.1.3, and 10.2, T

able 1

2, a

nd Figure

4.)

Nominal

valve size


ensions, m

m

PN 20 short pattern

PN 20 regular

PN 20 venturi

PN 20 round-port full-bore

Raised face,

AButt- welding

end, B

Ring and

gro

ove, C

Raised face,

AButt- welding

end, B

Ring and

groove,

CRaised

face, A

Butt-

welding

end, B

Ring and

groove,

CRaised

face, A

Butt-

welding

end, B

Ring and

groove,

C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

177.8

190.5

203.2

228.6

266.7

266.7

304.8

330.2

355.6

457.2

190.5

203.2

215.9

241.3

279.4

—

—

—

—

393.7

—

—

—

—

—

—

—

—

—

406.4

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

266.7

298.5

342.9

431.8

546.1

—

—

—

—

—

279.4

311.2

355.6

444.5

558.8

NPS 8

NPS 10

NPS 12

NPS 14

292.1

330.2

355.6

—

520.7

558.8

635.0

—

304.8

342.9

368.3

—

457.2

533.4

609.6

—

—

—

—

—

469.9

546.1

622.3

—

—

533.4

609.6

685.8

—

558.8

635.0

685.8

—

546.1

622.3

698.5

622.3

660.4

762.0

—

—

—

—

—

635.0

673.1

774.7

—

NPS 16

NPS 18

NPS 20

NPS 24

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

762.0

863.6

914.4

1066.8

762.0

863.6

914.4

1066.8

774.7

876.3

927.1

1079.5

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)





Table 4 (Continued)

Nominal

valve size


ensions, m

m

PN 50 short pattern

PN 50 regular

PN 50 venturi


Raised

face, A

Butt-

welding

end, B

Ring and

groove, C

Raised

face, A

Butt-

welding

end, B

Ring

and

groove, C

Raised

face, A

Butt-

welding

end, B

Ring and

groove, C

Raised face,

A

Butt-

welding

end, B

Ring and

groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

215.9

241.3

282.6

304.8

403.2

266.7

304.8

330.2

355.6

457.2

231.8

257.2

298.5

320.7

419.1

—

—

—

—

403.2

—

—

—

—

—

—

—

—

—

419.1

—

—

—

—

403.2

—

—

—

—

457.2

—

—

—

—

419.1

282.6

330.2

387.4

457.2

558.8

282.6

330.2

387.4

457.2

558.8

298.5

346.1

403.2

473.1

574.7

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

419.1

457.2

501.7

—

—

520.7

558.8

635.0

—

—

435.0

473.1

517.5

—

—

501.7

568.3

—

—

—

—

—

—

—

—

517.5

584.2

—

—

—

419.1

457.2

501.7

762.0

838.2

520.7

558.8

635.0

762.0

838.2

435.0

473.1

517.5

777.9

854.1

685.8

825.5

965.2

—

—

685.8

825.5

965.2

—

—

701.7

841.4

981.1

—

—

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

914.4

990.6

1092.2

1143.0

1244.6

—

—

—

—

—

930.3

1009.7

1114.4

1165.2

1270.0

914.4

990.6

1092.2

1143.0

1244.6

914.4

990.6

1092.2

1143.0

1244.6

930.3

1009.7

1114.4

1165.2

1270.0

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1346.2

1397.0

1524.0

1625.6

1727.2

—

—

—

—

—

1371.6

1422.4

1552.6

1654.2

1755.8

1346.2

1397.0

1524.0

1625.6

1727.2

1346.2

1397.0

1524.0

1625.6

1727.2

1371.6

1422.4

1552.6

1654.2

1755.8

—

—

—

—

—

—

—

—

—

—

—

—

—

—

— (Continued)



Table 4 (Continued)

Nominal valve

size


ensions, m

m

PN 68 regular

PN 68 venturi


Raised face, A

Butt- welding

end, B

Ring and

groove, C

Raised

face, A

Butt- welding

end, B

Ring and

groove, C

Raised face, A

Butt- welding

end, B

Ring and

groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

292.1

330.2

355.6

406.4

495.3

292.1

330.2

355.6

406.4

495.3

295.3

333.4

358.8

409.6

498.5

—

—

—

—

495.3

—

—

—

—

495.3

—

—

—

—

498.5

330.2

381.0

444.5

482.6

609.6

—

—

—

558.8

711.2

333.4

384.2

447.7

485.8

612.8

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

596.9

673.1

762.0

—

—

596.9

673.1

762.0

—

—

600.1

676.3

765.2

—

—

596.9

673.1

762.0

825.5

901.7

596.9

673.1

762.0

825.5

901.7

600.1

676.3

765.2

828.7

904.9

736.6

889.0

1016.0

—

—

844.6

889.0

1016.0

—

—

739.8

892.2

1019.2

—

—

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

977.9

1054.1

1143.0

1231.9

1308.1

977.9

1054.1

1143.0

1231.9

1308.1

981.1

1060.5

1152.5

1241.4

1320.8

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1397.0

1524.0

1651.0

1778.0

1879.6

1397.0

1524.0

1651.0

1778.0

1879.6

1409.7

1536.7

1666.9

1793.9

1895.5

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)





Table 4 (Continued)

Nominal

valve size


ensions, m

m

PN 100 regular

PN 100 venturi


Raised

face, A

Butt-

welding

end, B

Ring and

groove, C

Raised face, A

Butt-

welding

end, B

Ring and

gro

ove, C

Raised face, A

Butt-

welding

end, B

Ring and

groove, C

NPS 2

292.1

292.1

295.3

——

—330.2

—333.4

NPS 2-1/2

330.2

330.2

333.4

——

—381.0

—384.2

NPS 3

355.6

355.6

358.8

——

—444.5

—447.7

NPS 4

431.8

431.8

435.0

——

—508.0

558.8

511.2

NPS 6

558.8

558.8

562.0

558.8

558.8

562.0

660.4

711.2

663.6

NPS 8

660.4

660.4

663.6

660.4

660.4

663.6

793.8

844.6

796.9

NPS 10

787.4

787.4

790.6

787.4

787.4

790.6

939.8

1016.0

943.0

NPS 12

——

—838.2

838.2

841.4

1066.8

1066.8

1070.0

NPS 14

——

—889.0

889.0

892.2

——

—

NPS 16

——

—990.6

990.6

993.8

——

—

NPS 18

——

—1092.2

1092.2

1095.4

——

—

NPS 20

——

—1193.8

1193.8

1200.2

——

—

NPS 22

——

—1295.4

1295.4

1304.9

——

—

NPS 24

——

—1397.0

1397.0

1406.5

——

—

NPS 26

——

—1447.8

1447.8

1460.5

——

—

NPS 30

——

—1651.0

1651.0

1663.7

——

—

NPS 32

——

—1778.0

1778.0

1793.9

——

—

NPS 34

——

—1930.4

1930.4

1946.3

——

—

NPS 36

——

—2082.8

2082.8

2098.7

——

—

(Continued)



Table 4 (Continued)

Nominal

valve size

Face–to–face (A) and end–to–end (B and C) dim

ensions, m

m

PN 150 regular

PN 150 venturi

PN 150 round–port full–bore

Raised

face, A

Butt–

welding

end, B

Ring and

gro

ove, C

Raised face, A

Butt–

welding

end, B

Ring and

groove, C

Raised face, A

Butt–

welding

end, B

Ring and

groove, C

NPS 2

368.3

—371.5

——

—381.0

—384.2

NPS 2-1/2

419.1

—422.3

——

—431.8

—435.0

NPS 3

381.0

381.0

384.2

——

—469.9

—473.1

NPS 4

457.2

457.2

460.4

——

—558.8

—562.0

NPS 6

609.6

609.6

612.8

609.6

609.6

612.8

736.6

—739.8

NPS 8

736.6

736.6

739.8

736.6

736.6

739.8

812.8

—816.0

NPS 10

838.2

838.2

841.4

838.2

838.2

841.4

965.2

—968.4

NPS 12

——

—965.2

965.2

968.4

1117.6

—1120.8

NPS 16

——

—1130.3

1130.3

1139.8

——

—

(Continued)





Table 4 (Concluded)

Nominal

valve

size

Face–to–face (A) and end–to–end (B and C) dim

ensions, mm

PN 250 regular

PN 250 venturi

PN 250 round–port full–bore

PN 420 regular

Raised

face, A

Butt–

welding

end, B

Ring and

groove, C

Raised

face, A

Butt–

welding

end, B

Ring and

groove, C

Raised

face, A

Butt–

welding

end, B

Ring and

groove, C

Raised

face, A

Butt–

welding

end, B

Ring and

groove, C

NPS 2

368.3

—371.5

——

—390.5

—393.7

450.9

—454.0

NPS 2-1/2

419.1

—422.3

——

—454.0

—457.2

508.0

—514.4

NPS 3

469.9

469.9

473.1

——

—523.9

—527.1

577.9

—584.2

NPS 4

546.1

546.1

549.3

——

—625.5

—628.7

673.1

—682.6

NPS 6

704.9

704.9

711.2

704.9

704.9

711.2

787.4

—793.8

914.4

—927.1

NPS 8

831.9

831.9

841.4

831.9

831.9

841.4

889.0

—898.5

1022.4

—1038.2

NPS 10

990.6

990.6

1000.1

990.6

990.6

1000.1

1066.8

—1076.3

1270.0

—1292.2

NPS 12

1130.3

1130.3

1146.2

1130.3

1130.3

1146.2

1219.2

—1235.1

1422.4

—1444.6

Note

s:

1)

Dim



betw




arked on the

nameplate as 6D4 w

ith the face-to-face or end-to-end dim

ension.

2)

Dim




3)






�Table 5

Standard flanged-end and buttwelding-end ball valves:

Face-to-face and end-to-end dim

ensions

(See Clause

s 5.1, 5.3, 1

0.1.4, and 10.2, T

able 1

2, a

nd Figure

5.)

Nominal valve size


ensions, m

m

PN 20 full-bore and reduced-bore

PN 20 short pattern

Raised face, A

Buttwelding end, B

Ring and gro

ove, C

Raised face, A

Buttwelding end, B

Ring and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

177.8

190.5

203.2

228.6

393.7

215.9

241.3

282.6

304.8

457.2

190.5

203.2

215.9

241.3

406.4

—

—

—

—

266.7

—

—

—

—

403.2

—

—

—

—

279.4

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

457.2

533.4

609.6

685.8

762.0

520.7

558.8

635.0

762.0

838.2

469.9

546.1

622.3

698.5

774.7

292.1

330.2

355.6

—

—

419.1

457.2

501.7

—

—

304.8

342.9

368.3

—

—

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

863.6

914.4

—

1066.8

1143.0

914.4

990.6

—

1143.0

1244.6

876.3

927.1

—

1079.5

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

1244.6

1295.4

1371.6

1473.2

1524.0

1346.2

1397.0

1524.0

1625.6

1727.2

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)





Table 5 (Continued)

Nominal valve size


ensions, m

m

PN 50 full-bore and reduced-bore

PN 50 short pattern

Raised face, A

Buttwelding end, B

Ring and gro

ove, C

Raised face, A

Buttwelding end, B

Ring and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

215.9

241.3

282.6

304.8

403.2

215.9

241.3

282.6

304.8

457.2

231.8

257.2

298.5

320.7

419.1

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

501.7

568.3

647.7

762.0

838.2

520.7

558.8

635.0

762.0

838.2

517.5

584.2

663.6

777.9

854.1

419.1

457.2

501.7

—

—

419.1

457.2

501.7

—

—

435.0

473.1

517.5

—

—

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

914.4

990.6

1092.2

1143.0

1244.6

914.4

990.6

1092.2

1143.0

1244.6

930.3

1009.7

1114.4

1165.2

1270.0

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

1346.2

1397.0

1524.0

1625.6

1727.2

1346.2

1397.0

1524.0

1625.6

1727.2

1371.6

1422.4

1552.6

1654.2

1755.8

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)



Table 5 (Continued)

Nominal valve

size


ensions, mm

PN 68 full-bore

PN 100 full-bore

PN 150 full-bore

Raised

face, A

Buttwelding

end, B

Ring and

gro

ove, C

Raised

face, A

Buttwelding

end, B

Ring and

groove, C

Raised

face, A

Buttwelding

end, B

Ring and

groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

—

—

—

406.4

495.3

—

—

—

406.4

495.3

—

—

—

409.6

498.5

292.1

330.2

355.6

431.8

558.8

292.1

330.2

355.6

431.8

558.8

295.3

333.4

358.8

435.0

562.0

368.3

419.1

381.0

457.2

609.6

368.3

419.1

381.0

457.2

609.6

371.5

422.3

384.2

460.4

612.8

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

596.9

673.1

762.0

825.5

901.7

596.9

673.1

762.0

825.5

901.7

600.1

676.3

765.2

828.7

904.9

660.4

787.4

838.2

889.0

990.6

660.4

787.4

838.2

889.0

990.6

663.6

790.6

841.4

892.2

993.8

736.6

838.2

965.2

1028.7

1130.3

736.6

838.2

965.2

1028.7

1130.3

739.8

841.4

968.4

1038.2

1139.8

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

977.9

1054.1

1143.0

1231.9

1308.1

977.9

1054.1

1143.0

1231.9

1308.1

981.1

1060.5

1152.5

1241.4

1320.8

1092.2

1193.8

1295.4

1397.0

1447.8

1092.2

1193.8

1295.4

1397.0

1447.8

1095.4

1200.2

1304.9

1406.5

1460.5

1219.2

1320.8

—

1549.4

—

1219.2

1320.8

—

1549.4

—

1231.9

1333.5

—

1568.5

—

NPS 28

NPS 30

NPS 32

NPS 34

NPS 36

1397.0

1524.0

1651.0

1778.0

1879.6

1397.0

1524.0

1651.0

1778.0

1879.6

1409.7

1536.7

1666.9

1793.9

1895.5

1549.4

1651.0

1778.0

1930.4

2082.8

1549.4

1651.0

1778.0

1930.4

2082.8

1562.1

1663.7

1793.9

1946.3

2098.7

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(Continued)





Table 5 (Concluded)

Nominal valve size


ensions, m

m

PN 250 full-bore

PN 420 full-bore

Raised face, A

Buttwelding

end, B

Ring and

gro

ove, C

Raised face, A

Buttwelding end, B

Ring and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

368.3

419.1

469.9

546.1

704.9

368.3

419.1

469.9

546.1

704.9

371.5

422.3

473.1

549.3

711.2

450.9

508.0

577.9

673.1

914.4

450.9

508.0

577.9

673.1

914.4

454.0

514.4

584.2

682.6

927.1

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

831.9

990.6

1130.3

1257.3

1384.3

831.9

990.6

1130.3

1257.3

1384.3

841.4

1000.1

1146.2

1276.4

1406.5

1022.4

1270.0

1422.4

—

—

1022.4

1270.0

1422.4

—

—

1038.2

1292.2

1444.6

—

—

Note

s:

1)

Reduced bore ball valves have the same face to face and end to end dim

ensions as full bore ball valves in the same size and nominal pressure class.

2)

Reduced bore ball valves are designated by two nominal sizes (see Clause 5.1.4.2). As it is not practicable to include all the desirable size combinations of

reduced bore ball valves in this Table, and in order to give freedom of choice, no combination is specifically listed. In using this Table for reduced bore

valves, the first number is the nominal valve size, which determ

ines the face to face and end to end dim

ensions.

3)

Dim



betw




arked on the

nameplate as 6D4 w

ith the face to face or end to end dim

ension.

4)

Dim




5)



m for valves larger than NPS 10 .



Table 6

Standard flanged-end and buttwelding-end swing check valves, regular and full-opening types; standard flanged-end

and buttwelding-end n

ozzle check valves: Face-to-face and end-to-end dim

ensions

(See Clause

s 5.1, 5.3, 1

0.1.5, and 10.2, Table 12, and Figure

s 6, 7, and 11.)

Nominal valve size


ensions, m

m


PN 20 buttwelding

end, B

PN 20 ring and

gro

ove, C


PN 50 buttwelding

end, B

PN 50 ring

and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

203.2

215.9

241.3

292.1

355.6

203.2

215.9

241.3

292.1

355.6

215.9

228.6

254.0

304.8

368.3

266.7

292.1

317.5

355.6

444.5

266.7

292.1

317.5

355.6

444.5

282.6

308.0

333.4

371.5

460.4

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

495.3

622.3

698.5

787.4

863.6

495.3

622.3

698.5

787.4

863.6

508.0

635.0

711.2

800.1

876.3

533.4

622.3

711.2

838.2

863.6

533.4

622.3

711.2

838.2

863.6

549.3

638.2

727.1

854.1

879.5

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

977.9

977.9

1066.8

1295.4

1295.4

977.9

977.9

1066.8

1295.4

1295.4

990.6

990.6

1079.5

1308.1

—

977.9

1016.0

1117.6

1346.2

1346.2

977.9

1016.0

1117.6

1346.2

1346.2

993.8

1035.1

1139.8

1368.4

1371.6

NPS 28

NPS 30

NPS 36

1447.8

1524.0

1955.8

1447.8

1524.0

1955.8

—

—

—

1498.6

1593.9

2082.8

1498.6

1593.9

2082.8

1524.0

1619.3

—

(Continued)





Table 6 (Continued)

Nominal valve size


ensions, m

m


PN 68 buttwelding

end, B

PN 68 ring and

groove, C


PN 100 buttwelding

end, B

PN 100 ring

and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

292.1

330.2

355.6

406.4

495.3

292.1

330.2

355.6

406.4

495.3

295.3

333.4

358.8

409.6

498.5

292.1

330.2

355.6

431.8

558.8

292.1

330.2

355.6

431.8

558.8

295.3

333.4

358.8

435.0

562.0

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

596.9

673.1

762.0

889.0

901.7

596.9

673.1

762.0

889.0

901.7

600.1

676.3

765.2

892.2

904.9

660.4

787.4

838.2

889.0

990.6

660.4

787.4

838.2

889.0

990.6

663.6

790.6

841.4

892.2

993.8

NPS 18

NPS 20

NPS 22

NPS 24

NPS 26

1016.0

1054.1

1143.0

1397.0

1397.0

1016.0

1054.1

1143.0

1397.0

1397.0

1019.2

1060.5

1152.5

1406.5

1409.7

1092.2

1193.8

1295.4

1397.0

1447.8

1092.2

1193.8

1295.4

1397.0

1447.8

1095.4

1200.2

1304.9

1406.5

1460.5

NPS 28

NPS 30

NPS 36

1600.2

1651.0

2082.8

1600.2

1651.0

2082.8

1612.9

1663.7

—

1600.2

1651.0

2082.8

1600.2

1651.0

2082.8

1612.9

1663.7

—

(Continued)



Table 6 (Continued)

Nominal valve size


ensions, m

m


PN 150 buttwelding

end, B

PN 150 ring and

groove, C


PN 250 buttwelding

end, B

PN 250 ring

and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

368.3

419.1

381.0

457.2

609.6

368.3

419.1

381.0

457.2

609.6

371.5

422.3

384.2

460.4

612.8

368.3

419.1

469.9

546.1

704.9

368.3

419.1

469.9

546.1

704.9

371.5

422.3

473.1

549.3

711.2

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

736.6

838.2

965.2

1028.7

1130.3

736.6

838.2

965.2

1028.7

1130.3

739.8

841.4

968.4

1038.2

1139.8

831.9

990.6

1130.3

1257.3

1384.3

831.9

990.6

1130.3

1257.3

1384.3

841.4

1000.1

1146.2

1276.4

1406.5

NPS 18

NPS 20

NPS 24

1219.2

1320.8

1549.4

1219.2

1320.8

1549.4

1231.9

1333.5

1568.5

1536.7

1663.7

1943.1

1536.7

1663.7

1943.1

1558.9

1685.9

1971.7

(Continued)





Table 6 (Concluded)

Nominal valve size


ensions, m

m


PN 420 buttwelding end, B

PN 420 ring and groove, C

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

450.9

508.0

577.9

673.1

914.4

450.9

508.0

577.9

673.1

914.4

454.0

514.4

584.2

682.6

927.1

NPS 8

NPS 10

NPS 12

1022.4

1270.0

1422.4

1022.4

1270.0

1422.4

1038.2

1292.2

1444.6

Note

s:

1)

Dim



betw




arked on the

nameplate as 6D4 w

ith the face-to-face or end-to-end dim

ension.

2)

Dim



one half the length of the flanged end valve of the same size and nominal pressure class as given in this Table.

3)






Table 7

Standard

single- and dual-plate w

afer-type check valves, long and short pattern

: Face-to-face dim

ensions

(See C

lause

s 5.1, 5.3, 1

0.1.5, and 10.2, T

able 1

2, and Figure

s 8 to 10.)

Nominal valve

size

Face-to-face dim

ension, mm

PN 20 short

pattern

PN 20 long

pattern

PN 50 short

pattern

PN 50 long

pattern

PN 68 short

pattern

PN 68 long

pattern

PN 100 short

pattern

PN 100 long

pattern

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

19.1

19.1

19.1

19.1

19.1

60.3

66.7

73.0

73.0

98.4

19.1

19.1

19.1

19.1

22.2

60.3

66.7

73.0

73.0

98.4

19.1

19.1

19.1

22.2

25.4

60.3

66.7

73.0

79.4

136.5

19.1

19.1

19.1

22.2

28.6

60.3

66.7

73.0

79.4

136.5

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

28.6

28.6

38.1

44.5

50.8

127.0

146.1

181.0

184.2

190.5

28.6

38.1

50.8

50.8

50.8

127.0

146.1

181.0

222.3

231.8

31.8

50.8

57.2

63.5

63.5

165.1

212.7

228.6

273.1

304.8

38.1

57.2

60.3

66.7

73.0

165.1

212.7

228.6

273.1

304.8

NPS 18

NPS 20

NPS 24

60.3

63.5

—

203.2

219.1

222.3

76.2

82.6

—

263.5

292.1

317.5

82.6

88.9

—

362.0

368.3

393.7

82.6

92.1

—

362.0

368.3

438.2

Nominal valve size

Face-to-face dim

ension, mm

PN 150 short

pattern

PN 150 long pattern

PN 250 short pattern

PN 250 long pattern

PN 250 short

pattern

PN 250 long pattern

NPS 2

NPS 2-1/2

NPS 3

NPS 4

NPS 6

19.1

19.1

19.1

22.2

34.9

69.9

82.6

82.6

101.6

158.8

19.1

19.1

22.2

31.8

44.5

69.9

82.6

82.6

101.6

158.8

—

—

—

—

—

69.9

82.6

85.7

104.8

158.8

NPS 8

NPS 10

NPS 12

NPS 14

NPS 16

44.5

57.2

—

—

—

206.4

241.3

292.1

355.6

384.2

57.2

73.1

—

—

—

206.4

247.7

304.8

355.6

384.2

—

—

—

—

—

206.4

254.0

304.8

—

—

NPS 18

NPS 20

NPS 24

—

—

—

450.9

450.9

495.3

—

—

—

468.3

533.4

558.8

—

—

—

—

—

—

Note

: Tolerance is ± 1.6 m


m, for valves larger than NPS 10.





� Table 8

Minimum bore sizes for standard round-port full-bore pattern valves(See Clauses 5 .1 .1 , 5 .3 , 10.1 .1 , and 10.2 .)

Nominal valve size

Minimum bore size, mm

PN 20 to PN 100 PN 150 PN 250 PN 420

NPS 2 NPS 2-1/2 NPS 3 NPS 4 NPS 6

49.2 61.9 74.6

100.0 150.8

49.2 61.9 74.6

100.0 150.8

49.2 61.9 74.6

100.0 144.5

42.9 52.4 61.9 87.3

131.8

NPS 8 NPS 10 NPS 12 NPS 14 NPS 16

201.6 252.4 303.2 335.0 385.8

201.6 252.4 303.2 322.3 373.1

192.1 239.7 287.3 315.9 360.4

179.4 223.8 265.1

— —


436.6 487.4 538.2 589.0 633.4

423.9 471.5 522.3 569.9 617.5

— — — — —

— — — — —

NPS 28 NPS 30 NPS 32

NPS 34 NPS 36

684.2 735.0 779.5

830.3 874.7

665.2 712.8 760.4

808.0 855.7

— — — — —

— — — — —


925.5 976.3

1020.8 1166.8 1312.9

902.4 954.4

1004.4 1147.4 1285.0

— — — — —

— — — — —

NPS 60 1458.9 1427.9 — —



Table 9

Energy absorption reduction ratios for subsize specimens(See Clauses 8.4.3 and 8.4.4.2 .)

Specimen size Dimensions, mm Reduction ratio

3/4 10 × 7.5 0.75

2/3 10 × 6.7 0.67

1/2 10 × 5.0 0.50

Table 10

Hydrostatic test pressure(See Clauses 9.3 and 9.4.1 .1 .)

Nominal pressure class

Hydrostatic test pressures, minimum, kPa

Shell test Seat test

PN 20 2 850 2 090

PN 50 7 440 5 460

PN 68 9 930 7 280

PN 100 14 900 10 920

PN 150 22 340 16 380

PN 250 37 230 27 300

PN 420 62 060 45 510

Note: Pressure shall not fall below the specified test pressure during the test period.

Table 11

Test duration(See Clauses 9.3 , 9.4.1 .1 , and 9.4.2 .1 .)

Nominal valve size Test durations, minimum, minutes

Shell test Seat test

NPS 2 to NPS 4 incl . 2 2

Larger than NPS 4 to NPS 10 incl . 5 5



Larger than NPS 36 120 10

Note: For nominal pipe sizes, see Table A. 1 .





Table 12

Valve markings(See Clauses 13.2 and 14.1 .1 .)

Markings Location

1. Standard designation: “CSA Z245.15-17” On nameplate

2. Manufacturer's name or trademark On both body and nameplate

3. Manufacturer's identifying reference for the valve design, such as a figure number or a catalogue number

On both body and nameplate

4. Nominal pressure class On nameplate

5. For Category I I va lves, impact test temperature* On nameplate

6. Maximum cold working-pressure rating (see Clause 5.2) On nameplate

7. Limiting maximum temperature, if less than 120 °C (see Clause 5.2) On nameplate

8. Body materia l† standard or specification On both body and nameplate

9. Melt identification, if made of a l loy steel On body

10. Trim identification: symbols indicating the material of the stem and seal ing faces of the closure members, if d ifferent from the valve body (see MSS SP-25)

On nameplate

11. Marking for va lves for sour service: “SOUR” On nameplate

12. Nominal valve size On nameplate

13. Ring-joint designation if appl icable: the letter “R” and a number indicating the size of ring

On the rim of the end flanges

14. Flow direction (check valves only) On body

15. Where required by Tables 3 to 7, mark “6D4” and the appropriate face-to-face or end-to-end d imension

On nameplate

16. Seria l number On both body and nameplate

* The notch-toughness test temperature shall be marked using the designation “MXC” or “PXC”, where “M” and “P” signify minus and plus, respectively, and “X” signifies the numerical value of the test temperature in degrees Celsius (e.g. , “M45C” for – 45 °C).† Where the body is fabricated from more than one type of steel, the weld end connection material shall govern the marking on the nameplate. Where more than one type of steel is used for weld end connections, all such types of steel shall be marked on the nameplate.



Figure 1

Typical wedge, rising-stem gate valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .2 .1 and Table 3 .)

Part names

1. Stem indicator

2. Stem enclosure

3. Handwheel

4. Yoke nut

5. Yoke

6. Stem

7. Yoke bolts and nuts

8. Stem packing

9. Rel ief valve

10. Bonnet

11. Bonnet bolts and nuts

12. Gate

13. Seat ring

14. Body

15. Support ribs or legs BButtwelding end

CRing joint

A

Raised face

Full face

Raised face

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1





Figure 2

Typical double-disc, rising-stem gate valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .2 .1 and Table 3 .)

Part names

1. Stem indicator

2. Stem enclosure

3. Handwheel

4. Yoke nut

5. Yoke

6. Stem


8. Stem packing

9. Rel ief va lve

10. Bonnet


12. Disc guide

13. Disc assembly

14. Seat ring

15. Body

16. Support ribs or legs

B

Buttwelding end

CRing joint

Raised face

Full face

ARaised face

10

16

15

14

13

12

11

9

8

7

6

5

4

1

2

3



Figure 3

Typical conduit, rising-stem gate valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .2 .1 and Table 3 .)

Part names

1. Stem indicator

2. Stem enclosure

3. Handwheel

4. Yoke nut

5. Yoke

6. Stem


8. Stem packing

9. Rel ief valve

10. Bonnet


12. Gate

13. Seat ring

14. Body


Buttwelding end

B

CRing joint

Raised face

Full face

ARaised face

15

14

13

12

11

10

9

8

7

6

5

4

1

2

3





Figure 4

Typical plug valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .3 and Table 4.)

Part names

1. Lubricator screw

2. G land studs and nuts

3. G land

4. Cover studs and nuts

5. Cover

6. Cover gasket

7. Stem packing

8. Lubricant check valve

9. Plug

10. Body

11. Stop col lar

12. Stem

B

C

Buttweld ing end

Raised face

A

Raised

face

Full face

Ring joint

1

2

3

4

5

6

7

8

9

10

11

12



Figure 5

Typical ball valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .4 and Table 5 .)

Part names

1. Indicator

2. Stem

3. Stem packing

4. Body nuts and bolts

5. Seat ring

6. Bal l

7. Body

A

C

B

Raised face

Ring joint

Buttwelding end

Full face

Raised face

1

2

3

4

5

6

7





Figure 6

Typical regular, swing check valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 6.)

Part names


2. Cover

3. Body

4. Disc

5. Seat ring


7. Pin

ARaised face

1

2

3

4

5

6

Raised face

C

Ring joint

Full face

B

Direction of flow

Buttwelding end

7

Note: The pin becomes a shaft if it is extended through the wall of the valve body.



Figure 7

Typical full-opening, swing check valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 6.)

Part names


2. Cover

3. Body

4. Disc

5. Seat ring


7. Pin

B

Buttwelding end

Direction of flow

Full face

Ring jointC

Raised face

ARaised face

1

2

3

4

5

6

7

Note: The pin becomes a shaft if it is extended through the wall of the valve body.





Figure 8

Typical single-plate wafer-type check valve — Long pattern (for illustrative

purposes only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 7.)

Part names

1. Body

2. Closure plate

3. H inge

4. Nut

5. H inge pin

6. H inge pin retainers

7. Seat ring

8. Bearing spacers

7

3

4

2

1

Section A — A

Direction of flow

6

58A

3

4

2

A



Figure 9

Typical dual-plate wafer-type check valve — Long pattern (for illustrative purposes

only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 7.)

Part names

1. Body

2. Closure plate

3. Stop pin

4. Spring

5. H inge pin

6. Plate lug bearings

7. Body lug bearings

8. Stop pin retainers

9. H inge pin retainers

10. Spring bearings

1

2

3

Section A — A

Direction of flow

A

4

5

6

10

9

A

8

7





Figure 10

Typical single-plate wafer-type check valve — Short pattern (for illustrative

purposes only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 7.)

Part names

1. Body

2. Clapper

3. Pin

4. Clapper seal

5. Body seal

6. Lifting eye

6

5 1

2 3

4

Section A — A

Direction of flow

A

A



Figure 11

Typical nozzle-type check valve (for illustrative purposes only)(See Clauses 5 .1 and 5 .1 .5.2 and Table 6.)

Part names

1. Body

2. Valve d isc rod

3. Compression spring

4. Valve d isc

5. Seat ring

6. Support pad

A

C

B

Direction of flow

Buttwelding end

Ring joint

Raised face

Full face

Raised face

1 2 3 4 5

6





Figure 12

Design of buttwelding ends(See Clause 5 .4.2 .)

1.5t* 0.5t*

Valve

end

45° max

30° max

37.5º

± 2.5º

Outside

2t* transition

Radius > 0.05t–

30° max

18° max

Radius > 0.05t–

2t* transition

tD*Inside

tD

t1

t1.6 ± 0.8 mmPipe Pipe

1.5t* 0.5t*

Valve

end

45° max

30° max

37.5°

± 2.5°

Outside

2t* transition

Radius > 0.05t–

30° max

18° max

Radius > 0.05t–

2t* transition

tD*

Inside

tD

t1

t1.6 ± 0.8 mm

Radius > 0.05t–

Radius > 0.05t–

Radius > 0.05t–

Radius > 0.05t–

10° ± 1°

19 mm

a) Standard design b) Alternative design for ends

with tD greater than 22 mm

Radius > 0.05t–

Legend:

tI = I specified wal l thickness of matching pipe, mm

tDI = I design thickness of the buttwelding end

S1I = I specified minimum yield strength of pipe, MPa

S2I = I specified minimum yield strength of valve end, MPa

* Minimum dimension

Notes:

1) t1 maximum = 0. 5t

2) tD > t × (S1/S2) when specified minimum yield strength of the valve is less than the matching pipe.

3) tD minimum = t when specified minimum yield strength of the valve end is equal to or greater than the

matching pipe.



Annex A (informative)

Pipeline component size nomenclature

Note: This Annex is not a mandatory part of this Standard.

Table A.1

Pipeline component size nomenclature(See Clause 1 .2 .1 and Table 11 .)

Nominal valve size

Matching steel line

pipe size OD, mm

NPS 2 DN 50 60.3

NPS 2-1/2 DN 65 73.0

NPS 3 DN 80 88.9

NPS 3-1/2 DN 90 101.6

NPS 4 DN 100 114.3

NPS 5 DN 125 141.3

NPS 6 DN 150 168.3

NPS 8 DN 200 219.1

NPS 10 DN 250 273.1

NPS 12 DN 300 323.9

NPS 14 DN 350 355.6

NPS 16 DN 400 406.4

NPS 18 DN 450 457.0

NPS 20 DN 500 508.0

NPS 22 DN 550 559.0

NPS 24 DN 600 610.0

NPS 26 DN 650 660.0

NPS 28 DN 700 711.0

NPS 30 DN 750 762.0

NPS 32 DN 800 813.0

NPS 34 DN 850 864.0

NPS 36 DN 900 914.0

NPS 38 DN 950 965.0

NPS 40 DN 1000 1016.0

NPS 42 DN 1050 1067.0

NPS 44 DN 1100 1118.0

NPS 46 DN 1150 1168.0

(Continued)





Table A.1 (Concluded)

Nominal valve size

Matching steel line

pipe size OD, mm

NPS 48 DN 1200 1219.0

NPS 50 DN 1250 1270.0

NPS 52 DN 1300 1321.0

NPS 54 DN 1350 1372.0

NPS 56 DN 1400 1422.0

NPS 58 DN 1450 1473.0

NPS 60 DN 1500 1524.0

Notes:

1) “NPS” means “nominal pipe size”, and the NPS system of nominal size designation is contained in Standards

prepared by the American Society of Mechanical Engineers (ASTM). The NPS size is dimensionless, and the

numerical portion of the designation is identical to the numerical portion of the previously used inch nominal

size designation.

2) “DN” means “diamètre nominal” (nominal diameter), and the DN system of nominal size designation is

contained in Standards prepared by the International Organization for Standardization (ISO).

3) The DN nominal sizes listed in this Table have generally been extracted from various ISO Standards, but in

some cases have been assigned arbitrarily. Caution should be exercised in the use of this Table, because in

many cases the DN nominal size shown is identical to that used in ISO Standards to designate components for

pipe having a specified outside diameter that differs slightly from the pipe OD size listed.



Annex B (informative)

Nominal pressure class nomenclature

Note: This Annex is not a mandatory part of this Standard.

Table B.1

Nominal pressure class nomenclature(See Clause 1 .2 .2 and Table 1 .)

ASME class designation Nominal pressure class

150 PN 20

300 PN 50

400 PN 68

600 PN 100

900 PN 150

1500 PN 250

2500 PN 420

Notes:

1) ASME class designations are designations given to valves to indicate the manufacturing dimensions and

maximum allowable non-shock working pressure, considering the material used and the operating

temperature.

2) “PN” means “pression nominale” (nominal pressure), and the PN system of nominal pressure class

designation is contained in Standards prepared by the International Organization for Standardization (ISO).

The numerical part of the designation approximates the maximum cold working pressure rating in bars

(100 kPa).





Annex C (informative)

Recommended practice for the calibration and survey of

heat treating equipment

Note: This informative Annex has been written in mandatory language to facilitate its adoption by anyone wishing

to do so.

C.1 Furnace calibration and survey

C.1.1

A temperature survey within each furnace working zone shal l be performed on each furnace at the

maximum and minimum temperatures of the range for which the furnace is qual ified for use.

C.1.2

The total number of thermocouple test locations in the working zone of a furnace shal l be not fewer

than four for furnace working zones of 2 m 3 or less. The location of the thermocouples shal l be at the

manufacturer's d iscretion.

C.1.3

Furnace working zones greater than 2 m 3 and less than or equal to 10 m 3 shal l use not fewer than nine

thermocouples. The location of the thermocouples shal l be as specified in Figure C.1.

� C.1.4

Furnace working zones greater than 10 m 3 shal l use a minimum of n ine thermocouples, plus one

additional thermocouple for each 3 m 3 of working zone exceeding 10 m 3. Furnace working zones

greater than 43 m 3 shal l use a minimum of 20 thermocouples. Additional thermocouples may be used.

The location of the first n ine thermocouples shal l be as specified in Figure C.1. The placement of

additional thermocouples shal l be at the manufacturer's d iscretion and shal l be recorded on the survey

records.

C.1.5

After the thermocouples have been instal led, readings shal l be taken at least once every 3 min to

determine when the temperature of the furnace working zone approaches the bottom of the

temperature range being surveyed.

C.1.6

Once the furnace temperature has reached the set point temperature, the temperature of each

thermocouple shal l be recorded at maximum intervals of 2 min, for at least 10 min. Then, readings shal l

be taken at maximum intervals of 5 min for a time sufficient to determine the recurrent temperature

pattern of the working zone for at least 30 min.

C.1.7

After the furnace control set point temperature is reached, the temperature at any point in the working

zone shal l not vary by more than 15 °C from the set point temperature.



C.1.8

Furnaces that have been subjected to a change in burner quantity or location, or both, shal l be

surveyed, and the requirements of Clause C.1.7 shal l be met.

C.1.9

Furnaces that have been subjected to a change in the type of l in ing shal l be surveyed, and the

requirements of Clause C.1.7 shal l be met.

Note: An example of a change in the type of lining is from brick to fibre.

C.1.10

Except as specified by Clauses C.1.8 and C.1.9 , furnaces that have been repaired or rebuilt shal l be

surveyed if deemed necessary by the manufacturer. For any such survey, the requirements of

Clause C.1.7 shal l be met.

C.2 Instruments

C.2.1 Accuracy of production instruments

The production instruments (thermocouples, control lers, and recorders) used for the heat treatment

process shal l be accurate to within ± 1% over the heat treatment range.

C.2.2 Calibration of production instruments

Equipment used to cal ibrate production instruments shal l be accurate to within ± 0.25% of their fu l l-

scale range.

C.3 RecordsRecords of furnace cal ibration and surveys shal l be maintained for at least five years.





Figure C.1

Thermocouple locations(See Clauses C.1 .3 and C.1 .4.)

Top view

Front

Rectangular furnace

Top view

Front

Cylindrical furnace

1) Front/left/top

2) Front/left/bottom

3) Front/right/top

4) Front/right/bottom

5) Centre/centre

6) Back/left/top

7) Back/left/bottom

8) Back/right/top

9) Back/right/bottom

1) Front/left/top

2) Front/left/bottom

3) Front/right/top

4) Front/right/bottom

5) Centre/top

6) Centre/centre

7) Centre/bottom

8) Back/centre/top

9) Back/centre/bottom

1 3

8

5

1

1

2

7

6

8

9 1

5

3

4

6

5

3

8

5

8

3

6

9

4

27

120°typ



Documents

Steel valves