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ASME B16.36-2006 (Revision of ASME B16.36-1996)
Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
Orifice Flanges
A N A M E R I C A N N A T I O N A L S T A N D A R D Not for Resale
ASME B16.36-2006 (Revision of ASME B16.36-1996)
Orifice Flanges
A N A M E R I C A N N A T I O N A L S T A N D A R D
Three Park Avenue • New York, NY 10016 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
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Date of Issuance: June 8, 2007
The next edition of this Standard is scheduled for publication in 2012. There will be no addenda issued to this Edition. ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard. Interpretations are published on the ASME Web site under the Committee Pages at http://cstools.asme.org as they are issued.
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This code or standard was developed under procedures accredited as meeting the criteria for American National
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The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990
Copyright © 2007 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
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CONTENTS
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Correspondence With the B16 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Pressure–Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4 Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 Flange Facing Finish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
7 Gaskets for Raised Face Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
8 Pressure Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
9 Jack Screw Provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
10 Flange Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
11 Flange Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
12 Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figures 1 Corner Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Angular Meter Tap for RTJ Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Jack Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Tables 1 Class 300 Orifice Flanges, Welding Neck, Slip-On and Threaded . . . . . . . . . . . . . . . . . . . . . 4 2 Class 600 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Class 900 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Class 1500 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Class 2500 Orifice Flanges, Welding Neck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mandatory Appendices I Dimensional Data for Classes 300, 600, 900, 1500, and 2500 Flanges in
U.S. Customary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 II Dimensional Data for Class 400 Flanges in U.S. Customary Units . . . . . . . . . . . . . . . . . . . 17 III References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Nonmandatory Appendix A Quality System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
iii
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FOREWORD August of 1956 marked the first recorded correspondence noting the lack of standardization
for orifice flanges. There were, and still are, several codes for the performance and calibration of orifice flanges, but there had been no standardization of the flanges themselves. Over the ensuing 3 years, correspondence continued among the Instrument Society of America, American Gas Association, and the B16 Standards Committee.
On December 3, 1959, Subcommittee 3 (now Subcommittee C) of B16 authorized the appoint- ment of a Task Force to undertake drafting of a standard. Although the initial work progressed smoothly, a controversy developed over the standard size of taps to be specified for the flanges. This required many years to resolve. It was finally achieved in 1973 with the issuance of a draft from the Task Force. Comments and objections to this draft from members of Subcommittee C were resolved, and a redraft was approved by the Subcommittee late in 1974. The B16 Standards Committee was balloted in the spring of 1975 and approval was gained. Comments from B16 members from the gas industry requested that the Class 400 orifice flange be included, and the B16 Subcommittee C agreed to consider this for a possible addendum. The Standard was approved by ANSI on August 15, 1975.
On April 30, 1979, an addenda was issued, which added Class 400 flanges and Mandatory Appendix II covering reference documents and organizations.
In 1982, American National Standards Committee B16 was reorganized as an ASME Committee operating under procedures accredited by ANSI. In the 1988 edition, figures were added to illustrate jack bolts and corner taps, metric units have been omitted, and references to other standards have been updated. Following approval by the B16 Main Committee and the ASME Supervisory Board, the Standard was approved as an American National Standard by ANSI on February 18, 1988.
In 1996, several revisions were made, including the addition of angular meter taps for ring joint flanges in sizes not previously covered. Following approval by the B16 Main Committee and the ASME Supervisory Board, the Standard was approved as an American National Standard by ANSI on November 6, 1996.
This 2006 edition includes metric units as the primary reference units while maintaining U.S. Customary units in either parenthetical or separate forms. Changes to dimensions and nomencla- ture follow that contained within the 2003 edition of ASME B16.5. This includes the change of minimum flange thickness from C to tfand corrections for Y1and Y2. Class 400 remains in U.S. Customary tables in Mandatory Appendix II but is not given in the metric dimensional tables. There are numerous requirement clarifications and editorial revisions.
Requests for interpretations or suggestions for revisions should be sent to the Secretary, B16 Committee, Three Park Avenue, New York, NY 10016-5990.
This revision was approved by the American National Standards Institute on November 6, 2006.
iv
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ASME B16 COMMITTEE Standardization of Valves, Flanges, Fittings, and Gaskets
(The following is the roster of the Committee at the time of approval of this Standard.)
STANDARDS COMMITTEE OFFICERS
N. R. Sonderegger, Chair M. L. Nayyar, Vice Chair
U. D’Urso, Secretary
STANDARDS COMMITTEE PERSONNEL
R. W. Barnes, Anric Enterprises, Inc. W. B. Bedesem, ExxonMobil Research and Engineering Co. D. F. Buccicone, Elkhart Products Corp. M. A. Clark, Nibco, Inc. U. D’Urso, The American Society of Mechanical Engineers C. E. Floren, Mueller Co. D. R. Frikken, Becht Engineering Co. G. G. Grills, U.S. Coast Guard M. L. Henderson, Forgital USA G. A. Jolly, Vogt Valves/Flowserve M. L. Nayyar, Chair, Bechtel Power Corp. U. D’Urso, Secretary, The American Society of Mechanical
Engineers A. Appleton, Alloy Stainless Products Co., Inc. W. B. Bedesem, ExxonMobil Research and Engineering Co. C. E. Davila, Crane Valves B. Dennis, Kerkau Manufacturing J. P. Ellenberger, Retired D. R. Frikken, Becht Engineering Co. M. L. Henderson, Forgital USA
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M. Katcher, Haynes International R. Koester, Honorary Member W. N. McLean, Newco Valves T. A. McMahon, Fisher Controls International, Inc. M. L. Nayyar, Bechtel Power Corp. J. D. Page, U.S. Regulatory Commission R. A. Schmidt, Trinity-ladish H. R. Sonderegger, Anvil International, Inc. W. M. Stephan, Flexitallic LP T. F. Stroud, Ductile Iron Pipe Research Association D. A. Williams, Southern Company Services
SUBCOMMITTEE C
C. L. Henley, Black & Veatch R. E. Johnson, Consultant M. Katcher, Haynes International W. N. McLean, Newco Valves W. H. Patrick, The Dow Chemical Company T. V. Ramakrishnan, Forged Vessel Connections R. C. Rentschler, Solutia, Inc. R. A. Schmidt, Hackney Ladish, Inc. J. P. Tucker, Flowserve M. M. Zaidi, Jacobs
v Not for Resale
CORRESPONDENCE WITH THE B16 COMMITTEE General. ASME Standards are developed and maintained with the intent to represent the
consensus of concerned interests. As such, users of this Standard may interact with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings. Corre- spondence should be addressed to:
Secretary, B16 Standards Committee The American Society of Mechanical Engineers Three Park Avenue New York, NY 10016-5990
As an alternative, inquiries may be submitted via e-mail to: [email protected]. Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes
that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically.
The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation.
Interpretations. Upon request, the B16 Committee will render an interpretation of any require- ment of the Standard. Interpretations can only be rendered in response to a written request sent to the Secretary of the B16 Standards Committee.
The request for interpretation should be clear and unambiguous. It is further recommended that the inquirer submit his/her request in the following format:
Subject: Edition: Question:
Cite the applicable paragraph number(s) and the topic of the inquiry. Cite the applicable edition of the Standard for which the interpretation is being requested. Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information.
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Requests that are not in this format will be rewritten in this format by the Committee prior to being answered, which may inadvertently change the intent of the original request.
ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.
Attending Committee Meetings. The B16 Standards Committee regularly holds meetings, which are open to the public. Persons wishing to attend any meeting should contact the Secretary of the B16 Standards Committee.
vi
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1 SCOPE
1.1 General
ASME B16.36-2006
ORIFICE FLANGES E 29. This requires that an observed or calculated value shall be rounded off to the nearest unit in the last right- hand digit used for expressing the limit. Decimal values
This Standard covers flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following:
(a) welding neck flanges Classes 300, 600, 900, 1500, and 2500. U.S. Customary units are presented in Mandatory Appendix I.
(b) slip-on and threaded Class 300. (c) welding neck flanges Class 400 in U.S. Customary
units in Mandatory Appendix II.
1.2 References
Codes, standards, and specifications containing provi- sions to the extent referenced herein constitute require- ments of this Standard. These reference documents are listed in Mandatory Appendix III.
and tolerances do not imply a particular method of mea- surements. 1.6 Denotation
1.6.1 Pressure Rating Designation (a) Class, followed by a dimensionless number, is the
designation for pressure–temperature ratings as follows: Classes 300 600 900 1500 2500.
(b) Class 400 is retained in the U.S. Customary tables.
1.6.2 Sizes. NPS, followed by a dimensionless number, is the designation for the nominal flange size. NPS is related to the reference nominal diameter, DN, used in international standards. The relationship is, typi- cally, as follows:
1.3 Quality Systems
Nonmandatory requirements relating to the product manufacturer’s Quality System Program are described in Nonmandatory Appendix A.
1.4 Relevant Units
NPS
1 11 ⁄2
2 21 ⁄2
3 4
DN
25 40 50 65 80 100
This Standard states values in both metric and U.S. Customary units. As an exception, diameter of bolts and flange bolt holes are expressed in inch units only. These systems of units are to be regarded separately as stan- dard. Within the text, the U.S. Customary units are shown in parentheses or in separate tables. The values stated in each system are not exact equivalents; there- fore, it is required that each system of units be used independently of the other. Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes nonconformance with the standard. Except for Class 400 the values in U.S. Customary units are in Mandatory Appendix I. The main text of this Standard does not contain requirements for Class 400 welding neck flange; however, Mandatory Appendix II does contain requirements for this class, expressed in U.S. Customary units only.
1.5 Convention For the purposes of determining conformance with
this Standard, the convention for fixing significant digits where limits and maximum and minimum values are specified, shall be rounded as defined in ASTM Practice
GENERAL NOTE: For NPS ε 4, the related DNp25 (NPS).
1.7 Service Conditions
Criteria for selection of materials suitable for the par- ticular fluid service are not within the scope of this Standard.
2 PRESSURE–TEMPERATURE RATINGS
The pressure–temperature ratings, including all use recommendations and limitations, and the method of rating given in ASME B16.5 apply to these flanges.
3 MATERIAL
3.1 General Flange materials shall be in accordance with the
requirements of ASME B16.5. 3.2 Bolting
Bolting material recommendations are given in ASME B16.5.
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1
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3.3 Plugs
ASME B16.36-2006
where radial taps will interfere with the ring groove,
Pressure retaining plugs shall conform to ASME B16.11, unless otherwise agreed between pur- chaser and manufacturer. Plug material shall be at least as corrosion resistant as the corresponding flange material.
4 SIZE
Orifice flange sizes are indicated by the nominal pipe size to which they are attached. Only those listed in Tables 1 through 5; Tables I-1 through I-5, and Mandatory Appendix II are considered standard.
5 MARKING
Flanges shall be marked as required in ASME B16.5. For welding neck flanges only, the bore diameter shall be marked.
6 FLANGE FACING FINISH
The finish of contact faces shall conform to the require- ments of ASME B16.5.
7 GASKETS FOR RAISED FACE FLANGES
7.1 Gasket Thickness Flange dimensions are based on the use of 1.5 mm
(0.06 in.) thick gaskets.
7.2 Flange Gaskets Requiring Dimensional Changes When the location of the pressure tap with respect to
the orifice plate is critical to the service and metering conditions, its location may be altered to accommodate other than 1.5 mm (0.06 in.) thick gaskets or ring type joint gaskets whose thickness may vary from that listed in in Tables 2, 3, 4, and 5 or those listed in Tables I-2, I-3, I-4, and I-5 or Mandatory Appendix II.
The alteration of location may also be accomplished by the removal of 2 mm (0.06 in.) from the raised face of the flange. If an original 2 mm (0.06 in.) high raised face is removed, the user is cautioned to limit the outside diameter of the gasket or orifice plate to the tabulated R dimension.
8 PRESSURE TAPS
8.1 General Each orifice flange shall be provided with two pres-
sure tap holes extending radially from the outside diam- eter of the flange to the inside diameter of the flange. Corner taps may be used on NPS 11⁄2and smaller if space permits. See Fig. 1.
For ring joint flanges listed in Tables 2 through 5, Tables I-1 through I-5, and Mandatory Appendix II
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2
angular meter taps, as illustrated in Fig. 2, will be required. Each pressure tap hole shall be equipped with a pipe plug.
8.2 Location
8.2.1 Measurement. The 24 mm (0.94 in.) dimension for raised face and 19 mm (0.75 in.) for ring joint shall be measured at the bore.
8.2.2 Identification. For ring joint flanges requiring alteration of pressure tap location due to interference with the ring groove other than methods provided in this Standard, such alteration shall be identified per agreement between purchaser and manufacturer. 8.3 Pipe Connection
Unless otherwise specified, pressure tap holes may be
either tapped1⁄2NPT in accordance with ASME B1.20.1 or1⁄2NPS socket connection in accordance with ASME B16.11.
9 JACK SCREW PROVISION
9.1 Location Each flange shall have a machine bolt mounted in a
hole drilled on the flange bolt circle center line at 90 deg from the pressure taps, for use as a jack screw. Machine bolt shall be regular with one heavy hex nut. See Fig. 3.
9.2 Slot for Nut A slot shall be provided in the flange 2 mm (0.06 in.)
wider than the width across flats of the nut. The depth of the slot shall admit the nut so that there is no interference with the joining of the flanges when bolted together without orifice plate.
9.3 Tapped Hole
As an alternative to para. 9.2, a tapped hole may be provided and the hex nut omitted when agreed on between the purchaser and the manufacturer.
10 FLANGE DIMENSIONS
Dimensions are listed in Tables 1, 2, 3, 4, and 5, for metric, and Tables I-1, I-2, I-3, I-4, and I-5, and Mandatory Appendix II for U.S. Customary.
11 FLANGE THREADS
Threaded flanges shall have an American National Standard taper pipe thread conforming to ASME B1.20.1.
(a) The thread shall be concentric with the axis of the flange. Variations in alignment shall not exceed 5 mm/M (0.06 in./ft).
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ASME B16.36-2006
(b) The flanges are made with counterbores at the back of the flange and the threads shall be chamfered to the diameter of the counterbore at an angle of approxi- mately 45 deg with the axis of the thread to afford easy entrance in making a joint. The counterbore and chamfer shall be concentric with the thread.
(c) In order to permit the pipe to be inserted to the face of the flange, the threads should have full root diameters through to the face of the flange, or shall have a counterbore at the face of the flange.
(d) The gaging notch of the working gage shall come flush with the bottom of the chamfer in all threaded flanges and shall be considered as being the intersection of the chamfer cone and the pitch cone of the thread. This depth of chamfer is approximately equal to one-half the pitch of the thread.
(e) The maximum allowable thread variation is one turn large or small from the gaging notch.
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3
12 TOLERANCES
Tolerances on all dimensions shall be as shown in ASME B16.5 except for those shown below. 12.1 Pressure Tap Location
Tolerance on location of center of pressure tap hole1 from flange face shall be
(a) ±0.5 mm (±0.02 in.) for flanges smaller than NPS 4 (b) ±0.8 mm (±0.03 in.) for flanges NPS 4 and larger
12.2 Bore Diameter
Bore diameter tolerance (welding neck flanges only) is ±0.5% of nominal value.
1 See para. 8.2.
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2.7
38
7.4
16
11
/81
14
51
65
12
38
1.0
52
04
9.3
71
12
93
75
32
3.8
32
7.0
12
.74
50
.81
61
1/4
11
/81
60
18
0
14
41
2.8
58
55
2.4
75
14
14
25
35
5.6
35
9.2
12
.75
14
.42
01
1/4
11
/81
65
18
51
64
69
.96
50
55
.68
11
44
48
34
06
.44
10
.51
2.7
57
1.5
20
13
/81
1/4
18
01
95
18
53
3.4
71
05
8.8
87
15
75
33
45
7.0
46
1.8
12
.76
28
.62
41
3/8
11
/41
85
20
52
05
84
.27
75
62
94
16
05
87
50
8.0
51
3.1
12
.76
85
.82
41
3/8
11
/41
90
21
52
46
92
.29
15
68
.31
05
16
77
02
61
0.0
61
6.0
12
.78
12
.82
41
5/8
11
/22
10
24
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in m
illi
met
ers,
exce
pt
for
bo
lts
and
bo
lt h
olt
ho
les,
Rrf
eren
ce M
and
ato
ry A
pp
end
ix I
fo
r U
.S.C
ust
om
ary
(b)W
eld
nec
k f
langes
NP
S 3
and
sm
alle
r ar
e id
enti
cal
to C
lass
60
0 f
langes
and
may
be
so m
arked
.
(c)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)F
or
slip
-on a
nd
thre
aded
fla
nges
,ver
ify t
hat
П d
rill
ing e
xte
nd
s to
insi
de
dia
met
er o
f p
ipe
afte
r as
sem
bly
and
fre
e fr
om
burr
s.
(3)B
olt
len
gth
s in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 6
mm
(0
.25
in.)
fo
r N
PS
1-1
2 a
nd
10
m
m (
0.3
8 i
n.)
fo
r N
PS
14
-24
.
(4)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(5)B
ore
dia
met
er o
f w
eld
nec
k f
langes
is
to b
e sp
ecif
ied
by t
he
purc
has
er.
(6)T
hre
aded
fla
nges
are
furn
ished
in N
PS
1-8
only
.
Bo
reD
rill
ing T
emp
late
[(3
),
(4)]
Bo
lt L
ength
See Note (5)
See
No
te (
6)
Len
gth
Thro
ugh H
ub
Co
unte
rbo
reD
iam
eter
of
Co
unte
rbo
reD
epth
(Fro
m F
ace)
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 4
Ta
ble
2 C
lass
600 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Outs
ide
Dia
m-
Dia
met
erH
eight
Dia
m-
Hub
eter
of
No
m-
of
Outs
ide
Min
imum
Len
gth
o
fS
pec
ial
eter
Dia
met
erP
ress
ure
Num
-D
iam
-in
alR
aise
dD
iam
eter
,T
hic
k-
Thro
ugh R
aise
dG
roo
ve
Pit
chG
roo
ve
Gro
ove
Rad
ius
atO
val
Rin
go
fB
egin
nin
gC
onn-
ber
eter
Pip
eF
ace
of
Fla
nge.
nes
s o
fH
ub
,F
ace
Num
-D
iam
eter
Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
lto
fR
aise
dR
ing
of
Rai
sed
Rin
g
Sez
eR
OF
lange,
tfY
Hb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Fac
eJo
int
Bo
lts
Fac
eJo
int
15
0.8
12
53
6.6
81
2R
16
50
.80
6.3
58
.74
0.8
25
.45
43
3.5
6.4
88
.94
11
/16
3/4
5/8
12
51
40
11
/27
3.0
15
53
6.6
84
2R
20
68
.27
6.3
58
.74
0.8
25.4
70
48
.36
.41
14
.34
13
/16
7/8
3/4
13
51
40
29
2.1
16
53
6.6
84
2R
23
82
.55
7.9
21
1.9
10
.82
7.0
84
60
.36
.41
27
.08
11
/16
3/4
5/8
12
51
40
21
/21
04
.81
90
36
.68
72
R2
61
01
.60
7.9
21
1.9
10
.82
7.0
10
07
3.0
6.4
14
9.2
81
3/1
67
/83
/41
35
14
53
12
7.0
21
03
6.6
87
2R
31
12
3.8
37
.92
11
.91
0.8
27
.01
17
88
.99
.51
68
.38
13
/16
7/8
3/4
13
51
45
41
57
.22
75
38
.11
02
7R
37
14
9.2
37
.92
11
.91
0.8
27
.01
52
11
4.3
12
.72
15
.98
11
7/8
15
01
65
62
15
.93
55
47
.71
17
7R
45
21
1.1
27
.92
11
.91
0.8
27
.02
22
16
8.3
12
.72
92
.11
21
1/8
11
/81
18
01
90
82
69
.94
20
55
.61
33
7R
49
26
9.8
87
.92
11
.91
0.8
27
.02
73
21
9.1
12
.73
49
.21
21
1/4
11
/41
1/8
19
52
10
10
32
3.8
51
06
3.5
15
27
R5
33
23
.85
7.9
21
1.9
10
.82
7.0
34
32
73
.01
2.7
43
1.8
16
13
/81
3/8
11
/42
20
23
51
23
81
.05
60
66
.71
56
7R
57
38
1.0
07
.92
11
.91
0.8
27
.04
00
32
3.8
12
.74
89
.02
01
3/8
13
/81
1/4
23
02
40
14
41
2.8
60
56
9.9
16
57
R6
14
19
.10
7.9
21
1.9
10
.82
7.0
43
23
55
.61
2.7
52
7.0
20
11
/21
1/2
13
/82
40
25
51
64
69
.96
85
76
.21
78
7R
65
46
9.9
07
.92
11
.91
0.8
30
.24
95
40
6.4
12
.76
03
.22
01
5/8
15
/81
1/2
26
02
76
18
53
3.4
74
58
2.6
18
47
R6
95
33
.40
7.9
21
1.9
10
.83
0.2
54
64
57
.21
2.7
65
4.0
20
13
/41
3/4
15
/82
80
29
02
05
84
.28
15
88
.91
90
7R
73
58
4.2
09
.53
13
.49
1.5
31
.86
10
50
8.0
12
.77
23
.92
41
3/4
13
/41
5/8
30
03
20
24
69
2.2
94
01
01
.62
03
7R
77
69
2.1
51
1.1
31
6.6
61
.53
6.5
71
86
09
.61
2.7
83
8.2
24
22
17
/83
35
35
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in m
illi
met
ers,
exce
pt
for
bo
lts
and
bo
lt h
olt
ho
les,
Rrf
eren
ce M
and
ato
ry A
pp
end
ix I
fo
r U
.S.C
ust
om
ary
(b)W
eld
nec
k f
langes
NP
S 3
and
sm
alle
r ar
e id
enti
cal
to C
lass
30
0 f
langes
exce
pt
for
bo
ltin
g a
nd
may
be
use
d f
or
such
ser
vic
e.
(c)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(d)R
ing j
oin
t fl
ange
in N
PS
24
wil
l re
quir
ed a
n a
ngula
r m
eter
tap
as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 6
mm
(0
.25
in.)
fo
r N
PS
1-1
2 a
nd
1
0 m
m (
0.3
8 i
n.)
fo
r N
PS
14
-24
.Bo
lt l
ength
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
15
mm
(0
.62
in )
fo
r N
PS
1-1
0 1
9m
m (
0.7
5 i
n)
for
NP
S 1
2-1
8,
and
22
mm
(0.8
8 i
n.)
fo
r N
PS
20
.
Rin
g T
yp
e Jo
int
See Note (4).
Ho
les
Dia
met
er o
f
Dri
llin
g T
emp
late
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 5
Ta
ble
3 C
lass
900 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Dia
m-
Hub
eter
of
No
m-
Dia
met
erO
uts
ide
Min
imum
Len
gth
R
adiu
s S
pec
ial
eter
Dia
met
erP
ress
ure
Dia
m-
inal
of
Rai
sed
Dia
met
erT
hic
k-
Thro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
go
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
nes
s o
fH
ub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
OF
lange,
tfY
ber
PE
Fr
Wx
AB
ПC
ircl
eH
ole
sH
ole
sB
olt
sF
ace
Join
t1
11
/2 22
1/2 3
12
7.0
24
03
8.1
10
2R
31
12
3.8
37
.92
11
.91
0.8
27
.01
27
88
.99
.51
90
.58
17
/81
50
16
5
41
57
.22
90
44
.51
14
R3
71
49
.23
7.9
21
1.9
10
.82
7.0
15
91
14
.31
2.7
23
5.0
81
1/4
11
/81
80
19
06
21
5.9
38
05
5.6
14
0R
45
21
1.1
27
.92
11
.91
0.8
27
.02
35
16
8.3
12
.73
17
.51
21
1/4
11
/81
95
21
08
26
9.9
47
06
3.5
16
2R
49
26
9.8
87
.92
11
.91
0.8
27
.02
98
21
9.1
12
.73
93
.71
21
1/2
13
/82
30
24
01
03
23
.85
45
69
.91
84
R5
33
23
.85
7.9
21
1.9
10
.82
7.0
36
82
73
.01
2.7
46
9.9
16
11
/21
3/8
24
02
55
12
38
1.0
61
07
9.4
20
0R
57
38
1.0
07
.92
11
.91
0.8
27
.04
19
32
3.8
12
.75
33
.42
01
1/2
13
/82
60
27
5
14
41
2.8
64
08
5.8
21
3R
62
41
9.1
01
1.1
31
6.6
61
.53
3.3
45
13
55
.61
2.7
55
8.8
20
15
/81
1/2
28
02
90
16
46
9.9
70
58
8.9
21
6R
66
46
9.9
01
1.1
31
6.6
61
.53
6.5
50
84
06
.41
2.7
61
6.0
20
13
/41
5/8
29
03
05
18
53
3.4
78
51
01
.62
29
R7
05
33
.40
12
.70
19
.84
1.5
39
.75
65
45
7.2
12
.76
85
.82
02
17
/83
30
35
02
05
84
.28
55
10
8.0
24
8R
74
58
4.2
01
2.7
01
9.8
41
.53
9.7
62
25
08
.01
2.7
74
9.3
20
21
/82
35
53
75
24
69
2.2
1 0
40
13
9.7
39
2R
78
69
2.1
51
5.8
82
6.9
72
.44
6.6
74
96
09
.61
2.7
90
1.7
20
25
/82
1/2
44
54
70
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in m
illi
met
ers,
exce
pt
for
bo
lts
and
bo
lt h
olt
ho
les,
Rrf
eren
ce M
and
ato
ry A
pp
end
ix I
fo
r U
.S.C
ust
om
ary
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
in N
PS
12
wil
l re
quir
e a
ngula
r m
eter
tap
as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 6
mm
(0
.25
in.)
fo
r N
PS
3-1
2 a
nd
1
0 m
m (
0.3
8 i
n.)
fo
r N
PS
14
-24
.Bo
lt l
ength
s fo
r ri
ng
typ
e jo
int
flan
ges
incl
ud
e al
low
ance
of
15
mm
(0
.62
in )
fo
r N
PS
3-1
0 a
nd
19
mm
(0
.75
in)
for
NP
S 1
2.
See Note (4).
Fo
r N
PS
21
/2 a
nd
sm
alle
r, u
se c
lass
15
00
.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 6
Ta
ble
4 C
lass
1500 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Hub
eter
of
No
m-
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
Dia
m-
Dia
met
erP
ress
ure
Dia
m-
inal
of
Rai
sed
Dia
met
ernes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
get
er o
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
15
0.8
15
03
8.1
83
R1
65
0.8
06
.35
8.7
40
.82
5.4
52
33
.56
.41
01
.64
17
/81
50
16
01
1/2
73
.01
80
38
.18
9R
20
68
.27
6.3
58
.74
0.8
25
.47
04
8.3
6.4
12
3.8
41
1/8
11
60
16
52
92
.12
15
38
.11
02
R2
49
5.2
57
.92
11
.91
0.8
27
.01
05
60
.36
.41
65
.18
17
/81
50
16
52
1/2
10
4.8
24
54
1.3
10
5R
27
10
7.9
57
.92
11
.91
0.8
27
.01
24
73
.06
.41
90
.58
11
/81
16
51
80
31
27
.02
65
47
.71
17
R3
51
36
.53
7.9
21
1.9
10
.82
7.0
13
38
8.9
9.5
20
3.2
81
1/4
11
/81
85
18
5
41
57
.23
10
54
.01
24
R3
91
61
.93
7.9
21
1.9
10
.82
7.0
16
21
14
.31
2.7
24
1.3
81
3/8
11
/42
05
21
56
21
5.9
39
58
2.6
17
1R
46
21
1.1
49
.52
13
.49
1.5
28
.62
29
16
8.3
12
.73
17
.51
21
1/2
13
/82
65
28
08
26
9.9
48
59
2.1
21
3R
50
26
9.8
81
1.1
31
6.6
61
.53
3.3
29
22
19
.11
2.7
39
3.7
12
13
/41
5/8
30
03
10
10
32
3.8
58
51
08
.02
54
R5
43
23
.85
11
.13
16
.66
1.5
33
.33
68
27
3.0
12
.74
82
.61
22
17
/83
45
35
51
23
81
.06
75
12
3.9
28
3R
58
38
1.0
01
4.2
72
3.0
11
.53
9.7
45
13
23
.81
2.7
57
1.6
16
21
/82
38
04
00
14
41
2.8
75
01
33
.42
98
R6
34
19
.10
15
.88
26
.97
2.4
44
.44
95
35
5.6
12
.76
35
.01
62
3/8
21
/44
15
44
51
64
69
.98
25
14
6.1
31
1R
67
46
9.9
01
7.4
83
0.1
82
.45
0.8
55
24
06
.41
2.7
70
4.8
16
25
/82
1/2
45
04
85
18
53
3.4
91
51
62
.03
27
R7
15
33
.40
17
.48
30
.18
2.4
50
.85
97
45
7.2
12
.77
74
.71
62
7/8
23
/45
00
53
52
05
84
.29
85
17
7.8
35
6R
75
58
4.2
01
7.4
83
3.3
22
.45
4.0
64
15
08
.01
2.7
83
1.8
16
31
/83
54
55
70
24
69
2.2
11
70
20
3.2
40
6R
79
69
2.1
52
0.6
23
6.5
32
.45
8.7
76
26
09
.61
2.7
99
0.6
16
35
/83
1/2
62
06
60
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in m
illi
met
ers,
exce
pt
for
bo
lts
and
bo
lt h
oll
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
larg
er t
han
NP
S 6
wil
l re
quir
e a
ngula
r m
eter
tap
s sh
ow
n i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 6
mm
(0
.25
in.)
fo
r N
PS
1-1
2 a
nd
1
0 m
m (
0.3
8 i
n.)
fo
r N
PS
14
-24
.Bo
lt l
ength
s fo
r ri
ng
typ
e jo
int
flan
ges
incl
ud
e al
low
ance
of
15
mm
(0
.62
in )
fo
r N
PS
1-6
.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
See Note (4).
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 7
Ta
ble
5 C
lass
2500 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Hub
eter
of
No
m-
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
Dia
m-
Dia
met
erP
ress
ure
Dia
m-
inal
of
Rai
sed
Dia
met
ernes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
get
er o
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
15
0.8
16
03
8.1
92
R1
86
0.3
36
.35
8.7
40
.82
5.4
57
33
.56
.41
08
.04
17
/81
50
16
01
1/2
73
.02
05
44
.51
11
R2
38
2.5
57
.92
11
.91
0.8
27
.07
94
8.3
6.4
14
6.0
41
1/4
11
/81
80
19
02
92
.12
35
50
.81
27
R2
61
01
.60
7.9
21
1.9
10
.82
7.0
95
60
.36
.41
71
.48
11
/81
18
51
95
21
/21
04
.82
65
57
.21
43
R2
81
11
.13
9.5
31
3.4
91
.53
0.2
11
47
3.0
6.4
19
6.8
81
1/4
11
/82
05
21
53
12
7.0
30
56
6.7
16
8R
32
12
7.0
09
.53
13
.49
1.5
30
.21
33
88
.99
.52
28
.68
13
/81
1/4
23
02
40
41
57
.23
55
76
.21
90
R3
81
57
.18
11
.13
16
.66
1.5
33
.31
65
11
4.3
12
.72
73
.08
15
/81
1/2
26
02
75
62
15
.94
85
10
8.0
27
3R
47
22
8.6
01
2.7
01
9.8
41
.53
6.5
23
51
68
.31
2.7
36
8.3
82
1/8
23
50
37
08
26
9.9
55
01
27
.03
18
R5
12
79
.40
14
.27
23
.01
1.5
39
.73
05
21
9.1
12
.74
38
.21
22
1/8
23
85
40
51
03
23
.86
75
16
5.1
41
9R
55
34
2.9
01
7.4
83
0.1
82
.44
7.6
37
52
73
.01
2.7
53
9.8
12
25
/82
1/2
49
05
15
12
38
1.0
76
01
84
.24
64
R6
04
06
.40
17
.48
33
.32
2.4
50
.84
41
32
3.8
12
.76
19
.11
22
7/8
23
/45
40
57
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in m
illi
met
ers,
exce
pt
for
bo
lts
and
bo
lt h
oll
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
larg
er t
han
NP
S 3
wil
l re
quir
e a
ngula
r m
eter
tap
s as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 6
mm
(0
.25
in.)
fo
r N
PS
1-1
2.
Bo
lt l
ength
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
15
mm
(0
.62
in )
fo
r N
PS
1-3
.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
See Note (4).
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 8
Copyright ASME International Provided by IHS under license with ASME
19 mm
(3/4in.)
ASME B16.36-2006
Fig. 1 Corner Taps Fig. 2 Angular Meter Tap for RTJ Flanges
Ring groove 5 mm (3/16in. min.)
Fig. 3 Jack Bolts
Nut slot
Plug
Jack bolt 9
No reproduction or networking permitted without license from IHS Not for Resale
Fl
ange
Fl
ange
10
Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
Not for Resale
ASME B16.36-2006
MANDATORY APPENDIX I DIMENSIONAL DATA FOR CLASSES 300, 600, 900, 1500, AND
2500 FLANGES IN U.S. CUSTOMARY UNITS T h i s A p p e n d i x i s a n i nt e g r a l p a r t o f
ASME B16.36-2006, and it is placed after the main text for convenience. Tables I-1 through I-5, included in this
Copyright ASME International
11
Appendix, provide dimensional data in U.S. Customary units for the following: Classes 300, 600, 900, 1500, and 2500 flanges.
Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
Not for Resale
Ta
ble
I-1
Cla
ss 3
00 O
rifi
ce F
lan
ges
,Weld
ing N
eck
,Sli
p-O
n a
nd
Th
rea
ded
Outs
ide
Hub
No
m-
Dia
met
erO
uts
ide
Min
imum
Dia
met
erD
iam
eter
of
inal
of
Rai
sed
Dia
met
erT
hic
knes
sSli
p-O
n a
nd
Wel
dD
iam
eter
Beg
innin
gW
eld
Pre
ssure
Num
ber
Dia
met
erD
iam
eter
Pip
eF
ace
of
Fla
nge.
of
Thre
aded
,N
eck,
of
Hub
,o
f C
ham
fer
Bac
k,
Fac
e,S
lip
-On
Nec
kC
onnec
tio
n,
Bo
lto
fo
fo
fM
achin
eS
tud
Sez
eR
OF
lange,
tfY
2Y
1x
(W.N
.).A
QB
Qf
FG
B2
B1
ПC
ircl
eH
ole
sH
ole
sB
olt
sB
olt
sB
olt
s1
2.0
04
.88
1.4
41
.81
3.1
92
.12
1.3
21
.41
1.3
01
.38
0.6
91
.36
1/4
3.5
04
11
/16
5/8
4.5
05
.00
11
/22
.88
6.1
21
.44
1.8
13
.31
2.7
51
.90
1.9
91
.89
1.4
10
.66
1.9
51
/44
.50
41
3/1
63
/44
.75
5.2
52
3.6
26
.50
1.4
41
.88
3.3
13
.31
2.3
82
.50
2.3
61
.44
0.6
22
.44
1/4
5.0
08
11
/16
5/8
4.5
05
.00
21
/24
.12
7.5
01
.44
1.9
43
.44
3.9
42
.88
3.0
02
.84
1.6
90
.50
2.9
41
/45
.88
81
3/1
63
/44
.75
5.2
53
5.0
08
.25
1.4
42
.00
3.4
44
.62
3.5
03
.63
3.4
61
.75
0.5
03
.57
3/8
6.6
28
13
/16
3/4
4.7
55
.25
46
.19
10
.00
1.4
42
.06
3.5
65
.75
4.5
04
.63
4.4
51
.81
0.5
04
.57
1/2
7.8
88
13
/16
3/4
4.7
55
.25
68
.50
12
.50
1.4
42
.06
3.8
88
.12
6.6
36
.75
6.5
71
.81
0.2
56
.72
1/2
10
.62
12
7/8
3/4
4.7
55
.25
81
0.6
21
5.0
01
.56
2.3
84
.31
10
.25
8.6
38
.75
8.5
52
.12
0.3
88
.72
1/2
13
.00
12
17
/85
.00
5.7
51
01
2.7
51
7.5
01
.81
2.5
64
.56
12
.62
10
.75
10
.88
1/2
15
.25
16
11
/81
5.7
56
.50
12
15
.00
20
.50
1.9
42
.81
5.0
61
4.7
51
2.7
51
2.8
81
/21
7.7
51
61
1/4
11
/86
.25
7.0
0
14
16
.25
23
.00
2.0
62
.94
5.5
61
6.7
51
4.0
01
4.1
41
/22
0.2
52
01
1/4
11
/86
.50
7.2
51
61
8.5
02
5.5
02
.19
3.1
95
.69
19
.00
16
.00
16
.16
1/2
22
.50
20
13
/81
1/4
7.0
07
.75
18
21
.00
28
.00
2.3
13
.44
6.1
92
1.0
01
8.0
01
8.1
81
/22
4.7
52
41
3/8
11
/47
.25
8.0
02
02
3.0
03
0.5
02
.44
3.6
96
.31
23
.12
20
.00
20
.20
1/2
27
.00
24
13
/81
1/4
7.5
08
.50
24
27
.25
36
.00
2.6
94
.12
6.5
62
7.6
22
4.0
02
4.2
51
/23
2.0
02
41
5/8
11
/28
.25
9.5
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es
(b)W
eld
nec
k f
langes
NP
S 3
and
sm
alle
r ar
e id
enti
cal
to C
lass
60
0 f
langes
and
may
be
so m
arked
.
(c)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)F
or
slip
-on a
nd
thre
aded
fla
nges
,ver
ify t
hat
П d
rill
ing e
xte
nd
s to
insi
de
dia
met
er o
f p
ipe
afte
r as
sem
bly
and
fre
e fr
om
burr
s.
(3)B
olt
len
gth
s in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 1
-12
and
0.3
8 i
n.
for
NP
S 1
4-2
4.
(4)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(5)B
ore
dia
met
er o
f w
eld
nec
k f
langes
is
to b
e sp
ecif
ied
by t
he
purc
has
er.
(6)T
hre
aded
fla
nges
are
furn
ished
in N
PS
1-8
only
.
Bo
reD
rill
ing T
emp
late
[(3
),
(4)]
Bo
lt L
ength
See Note (5)
See
No
te (
6)
Len
gth
Thro
ugh H
ub
Co
unte
rbo
reD
iam
eter
of
Co
unte
rbo
reD
epth
(Fro
m F
ace)
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 12
Ta
ble
I-2
Cla
ss 6
00 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Outs
ide
Dia
m-
Dia
met
erH
eight
Dia
m-
Hub
eter
of
of
Outs
ide
Min
imum
Len
gth
o
fS
pec
ial
eter
Dia
met
erP
ress
ure
Num
-D
iam
-N
om
inal
Rai
sed
Dia
met
er,
Thic
k-
Thro
ugh R
aise
dG
roo
ve
Pit
chG
roo
ve
Gro
ove
Rad
ius
atO
val
Rin
go
fB
egin
nin
gC
onn-
ber
eter
Pip
eF
ace
of
Fla
nge.
nes
s o
fH
ub
,F
ace
Num
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
,H
eight,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
lto
fR
aise
dR
ing
of
Rai
sed
Rin
g
Sez
eR
OF
lange,
tfY
Hb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Fac
eJo
int
Bo
lts
Fac
eJo
int
12
.00
4.8
81
.44
3.1
90
.06
R1
62
.00
00
.25
00
.34
40
.03
1.0
02
.12
1.3
21
/43
.50
40
.69
0.7
55
/85
.00
5.5
01
1/2
2.8
86
.12
1.4
43
.32
0.0
6R
20
2.6
88
0.2
50
0.3
44
0.0
31
.00
2.7
51
.90
1/4
4.5
04
0.8
10
.88
3/4
5.2
55
.50
23
.62
6.5
01
.44
3.3
20
.06
R2
33
.25
00
.31
20
.46
90
.03
1.0
63
.31
2.3
81
/45
.00
80
.69
0.7
55
/85
.00
5.5
02
1/2
4.1
27
.50
1.4
43
.44
0.0
6R
26
4.0
00
0.3
12
0.4
69
0.0
31
.06
3.9
42
.88
1/4
5.8
88
0.8
10
.88
3/4
5.2
55
.75
35
.00
8.2
51
.44
3.4
40
.06
R3
14
.87
50
.31
20
.46
90
.03
1.0
64
.62
3.5
03
/86
.62
80
.81
0.8
83
/45
.25
5.7
5
46
.19
10
.75
1.5
04
.00
0.2
5R
37
5.8
75
0.3
12
0.4
69
0.0
31
.06
6.0
04
.50
1/2
8.5
08
1.0
01
.00
7/8
6.0
06
.50
68
.50
14
.00
1.8
84
.62
0.2
5R
45
8.3
12
0.3
12
0.4
69
0.0
31
.06
8.7
56
.63
1/2
11
.50
12
1.1
21
.12
17
.00
7.5
08
10
.62
16
.50
2.1
95
.25
0.2
5R
49
10
.62
50
.31
20
.46
90
.03
1.0
61
0.7
58
.63
1/2
13
.75
12
1.2
51
.25
11
/87
.75
8.2
51
01
2.7
52
0.0
02
.50
6.0
00
.25
R5
31
2.7
50
0.3
12
0.4
69
0.0
31
.06
13
.50
10
.75
1/2
17
.00
16
1.3
81
.38
11
/48
.75
9.2
51
21
5.0
02
2.0
02
.62
6.1
20
.25
R5
71
5.0
00
0.3
12
0.4
69
0.0
31
.06
15
.75
12
.75
1/2
19
.25
20
1.3
81
.38
11
/49
.00
9.5
0
14
16
.25
23
.75
2.7
56
.50
0.2
5R
61
16
.50
00
.31
20
.46
90
.03
1.0
61
7.0
01
4.0
01
/22
0.7
52
01
.50
1.5
01
3/8
9.5
01
0.0
01
61
8.5
02
7.0
03
.00
7.0
00
.25
R6
51
8.5
00
0.3
12
0.4
69
0.0
31
.19
19
.50
16
.00
1/2
23
.75
20
1.6
21
.62
11
/21
0.2
51
0.7
51
82
1.0
02
9.2
53
.25
7.2
50
.25
R6
92
1.0
00
0.3
12
0.4
69
0.0
31
.19
21
.50
18
.00
1/2
25
.75
20
1.7
51
.75
15
/81
1.0
01
1.5
02
02
3.0
03
2.0
03
.50
7.5
00
.25
R7
32
3.0
00
0.3
75
0.5
31
0.0
61
.25
24
.00
20
.00
1/2
28
.50
24
1.7
51
.75
15
/81
1.7
51
2.5
02
42
7.2
53
7.0
04
.00
8.0
00
.25
R7
72
7.2
50
0.4
38
0.6
56
0.0
61
.44
28
.25
24
.00
1/2
33
.00
24
2.0
02
.00
17
/81
3.2
51
3.7
5
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es.
(b)W
eld
nec
k f
langes
NP
S 3
and
sm
alle
r ar
e id
enti
cal
to C
lass
30
0 f
langes
exce
pt
for
bo
ltin
g a
nd
may
be
use
d f
or
such
ser
vic
e.
(c)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(d)R
ing j
oin
t fl
ange
in N
PS
24
wil
l re
quir
ed a
n a
ngula
r m
eter
tap
as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(3)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
(2)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 1
-12
and
0
.38
in.
for
NP
S 1
4-2
4.B
olt
len
gth
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e
allo
wan
ce o
f 0
.62
in.
fo
r N
PS
1-1
0,
0.7
5 i
n.
for
NP
S 1
2-1
8,
and
0.8
8 i
n.
for
NP
S 2
0.
Rin
g T
yp
e Jo
int
See Note (4).
Ho
les
Dia
met
er o
f
Dri
llin
g T
emp
late
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 13
Ta
ble
I-3
Cla
ss 9
00 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Dia
m-
Hub
eter
of
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
eter
Dia
met
erP
ress
ure
Dia
m-
No
min
alo
f R
aise
dD
iam
eter
nes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
go
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
11
1/2 2
21
/2 35
.00
9.5
01
.50
4.0
0R
31
4.8
75
0.3
12
0.4
69
0.0
31
.06
5.0
03
.50
3/8
7.5
08
1.0
07
/86
.00
6.5
0
46
.19
11
.50
1.7
54
.50
R3
75
.87
50
.31
20
.46
90
.03
1.0
66
.25
4.5
01
/29
.25
81
.25
11
/87
.00
7.5
06
8.5
01
5.0
02
.19
5.5
0R
45
8.3
12
0.3
12
0.4
69
0.0
31
.06
9.2
56
.63
1/2
12
.50
12
1.2
51
1/8
7.7
58
.25
81
0.6
21
8.5
02
.50
6.3
8R
49
10
.62
50
.31
20
.46
90
.03
1.0
61
1.7
58
.63
1/2
15
.50
12
1.5
01
3/8
9.0
09
.50
10
12
.75
21
.50
2.7
57
.25
R5
31
2.7
50
0.3
12
0.4
69
0.0
31
.06
14
.50
10
.75
1/2
18
.50
16
1.5
01
3/8
9.5
01
0.0
01
21
5.0
02
4.0
03
.12
7.8
8R
57
15
.00
00
.31
20
.46
90
.03
1.0
61
6.5
01
2.7
51
/22
1.0
02
01
.50
13
/81
0.2
51
0.7
5
14
16
.25
25
.25
3.3
88
.38
R6
21
6.5
00
0.4
38
0.6
56
0.0
61
.31
17
.75
14
.00
1/2
22
.00
20
1.6
21
1/2
11
.00
11
.50
16
18
.50
27
.75
3.5
08
.50
R6
61
8.5
00
0.4
38
0.6
56
0.0
61
.44
20
.00
16
.00
1/2
24
.25
20
1.7
51
5/8
11
.50
12
.00
18
21
.00
31
.00
4.0
09
.00
R7
02
1.0
00
0.5
00
0.7
81
0.0
61
.56
22
.25
18
.00
1/2
27
.00
20
2.0
01
7/8
13
.00
13
.75
20
23
.00
33
.75
4.2
59
.75
R7
42
3.0
00
0.5
00
0.7
81
0.0
61
.56
24
.50
20
.00
1/2
29
.50
20
2.1
22
14
.00
14
.75
24
27
.25
41
.00
5.5
01
1.5
0R
78
27
.25
00
.62
51
.06
20
.09
1.8
82
9.5
02
4.0
01
/23
5.5
02
02
.62
21
/21
7.5
01
8.5
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
larg
er t
han
NP
S 1
2 w
ill
req
uir
e a
ngula
r m
eter
tap
s as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 3
-12
and
0
.38
in.
for
NP
S 1
4-2
4.B
olt
len
gth
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
0.6
2 i
n.f
or
NP
S 3
-10
and
0.7
5 i
n f
or
NP
S 1
2.
See Note (4).
Fo
r N
PS
21
/2 a
nd
sm
alle
r, u
se c
lass
15
00
.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 14
Ta
ble
I-4
Cla
ss 1
500 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Hub
eter
of
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
Dia
m-
Dia
met
erP
ress
ure
Dia
m-
No
min
alo
f R
aise
dD
iam
eter
nes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
get
er o
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace,
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
th,
Bo
tto
mH
eight,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
12
.00
5.8
81
.50
3.2
5R
16
2.0
00
0.2
50
0.3
44
0.0
31
.00
2.0
61
.32
1/4
4.0
04
1.0
07
/86
.00
6.2
51
1/2
2.8
87
.00
1.5
03
.50
R2
02
.68
80
.25
00
.34
40
.03
1.0
02
.75
1.9
01
/44
.88
41
.12
16
.25
6.5
02
3.6
28
.50
1.5
04
.00
R2
43
.75
00
.31
20
.46
90
.80
1.0
64
.12
2.3
81
/46
.50
81
.00
7/8
6.0
06
.50
21
/24
.12
9.6
21
.62
4.1
2R
27
4.2
50
0.3
12
0.4
69
0.8
01
.06
4.8
82
.88
1/4
7.5
08
1.1
21
6.5
07
.00
35
.00
10
.50
1.8
84
.62
R3
55
.37
50
.31
20
.46
90
.80
1.0
65
.25
3.5
03
/88
.00
81
.25
11
/87
.25
7.2
5
46
.19
12
.25
2.1
24
.88
R3
96
.37
50
.31
20
.46
90
.03
1.0
66
.38
4.5
01
/29
.50
81
.38
11
/48
.00
8.5
06
8.5
01
5.5
03
.25
6.7
5R
46
8.3
12
0.3
75
0.5
31
0.0
61
.12
9.0
06
.63
1/2
12
.50
12
1.5
01
3/8
10
.50
11
.00
81
0.6
21
9.0
03
.62
8.3
8R
50
10
.62
50
.43
80
.65
60
.06
1.3
11
1.5
08
.63
1/2
15
.50
12
1.7
51
5/8
11
.75
12
.25
10
12
.75
23
.00
4.2
51
0.0
0R
54
12
.75
00
.43
80
.65
60
.06
1.3
11
4.5
01
0.7
51
/21
9.0
01
22
.00
17
/81
3.5
01
4.0
01
21
5.0
02
6.5
04
.88
11
.12
R5
81
5.0
00
0.5
62
0.8
06
0.0
61
.56
17
.75
12
.75
1/2
22
.50
16
2.1
22
15
.00
15
.75
14
16
.25
29
.50
5.2
51
1.7
5R
63
16
.50
00
.62
51
.06
20
.09
1.7
51
9.5
01
4.0
01
/22
5.0
01
62
.38
21
/41
6.2
51
7.5
21
61
8.5
03
2.5
05
.75
12
.25
R6
71
8.5
00
0.6
88
1.1
88
0.0
92
.00
21
.75
16
.00
1/2
27
.75
16
2.6
22
1/2
17
.50
19
.00
18
21
.00
36
.00
6.3
81
2.8
8R
71
21
.00
00
.68
81
.18
80
.09
2.0
02
3.5
01
8.0
01
/23
0.5
01
62
.88
23
/41
9.7
52
1.0
02
02
3.0
03
8.7
57
.00
14
.00
R7
52
3.0
00
0.6
88
1.3
12
0.0
92
.12
25
.25
20
.00
1/2
32
.75
16
3.1
23
21
.50
22
.50
24
27
.25
46
.00
8.0
01
6.0
0R
79
27
.25
00
.81
21
.43
80
.09
2.3
13
0.0
02
4.0
01
/23
9.0
01
63
.62
31
/22
4.5
02
6.0
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
larg
er t
han
NP
S 6
wil
l re
quir
e a
ngula
r m
eter
tap
s sh
ow
n i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 1
-12
and
0
.38
in.
for
NP
S 1
4-2
4.B
olt
len
gth
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
0.6
2 i
n f
or
NP
S 1
-6.
Rin
g T
yp
e Jo
int
`
See Note (4).
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 15
Ta
ble
I-5
Cla
ss 2
500 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Hub
eter
of
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
Dia
m-
Dia
met
erP
ress
ure
Dia
m-
No
min
alo
f R
aise
dD
iam
eter
nes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
get
er o
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
12
.00
6.2
51
.50
3.6
2R
18
2.3
75
0.2
50
0.3
44
0.0
31
.00
2.2
51
.32
1/4
4.2
54
1.0
07
/86
.00
6.2
51
1/2
2.8
88
.00
1.7
54
.38
R2
33
.25
00
.31
20
.46
90
.03
1.0
63
.12
1.9
01
/45
.75
41
.25
11
/87
.00
7.5
02
3.6
29
.25
2.0
05
.00
R2
64
.00
00
.31
20
.46
90
.03
1.0
63
.75
2.3
81
/46
.75
81
.12
17
.25
7.7
52
1/2
4.1
21
0.5
02
.25
5.6
2R
28
4.3
75
0.3
75
0.5
31
0.0
61
.19
4.5
02
.88
1/4
7.7
58
1.2
51
1/8
8.0
08
.50
35
.00
12
.00
2.6
26
.62
R3
25
.00
00
.37
50
.53
10
.06
1.1
95
.25
3.5
03
/89
.00
81
.38
11
/49
.00
9.5
0
46
.19
14
.00
3.0
07
.50
R3
86
.18
80
.43
80
.65
60
.06
1.3
16
.50
4.5
01
/21
0.7
58
1.6
21
1/2
10
.25
10
.75
68
.50
19
.00
4.2
51
0.7
5R
47
9.0
00
0.5
00
0.7
81
0.0
61
.44
9.2
56
.63
1/2
14
.50
82
.12
21
3.7
51
4.5
08
10
.62
21
.75
5.0
01
2.5
0R
51
11
.00
00
.56
20
.90
60
.06
1.5
61
2.0
08
.63
1/2
17
.25
12
2.1
22
15
.25
16
.00
10
12
.75
26
.50
6.5
01
6.5
0R
55
13
.50
00
.68
81
.18
80
.09
1.8
81
4.7
51
0.7
51
/22
1.2
51
22
.62
21
/21
9.2
52
0.2
51
21
5.0
03
0.0
07
.25
18
.25
R6
01
6.0
00
0.6
88
1.3
12
0.0
92
.00
17
.38
12
.75
1/2
24
.38
12
2.8
82
3/4
21
.25
22
.50
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
larg
er t
han
NP
S 3
wil
l re
quir
e a
ngula
r m
eter
tap
s as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 1
-12
. B
olt
len
gth
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
0.6
2 i
n .
for
NP
S 1
-3.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
See Note (4).
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 16
ASME B16.36-2006
MANDATORY APPENDIX II DIMENSIONAL DATA FOR CLASS 400 FLANGES IN
U.S. CUSTOMARY UNITS T h i s A p p e n d i x i s a n i nt e g r a l p a r t o f
ASME B16.36-2006, and it is placed after the main text for convenience. Table II-1, included in this Appendix,
Copyright ASME International
17
provides dimensional data in U.S. Customary units for Class 400 flanges.
Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
Not for Resale
Ta
ble
I-3
Cla
ss 9
00 O
rifi
ce F
lan
ges
,Weld
ing N
eck
Dia
m-
Outs
ide
Min
imum
Dia
m-
Hub
eter
of
Dia
met
erO
uts
ide
Thic
k-
Len
gth
R
adiu
s S
pec
ial
eter
Dia
met
erP
ress
ure
Dia
m-
No
min
alo
f R
aise
dD
iam
eter
nes
s o
fT
hro
ugh
Gro
ove
Pit
chG
roo
ve
Gro
ove
atO
val
Rin
go
fB
egin
nin
gC
onn-
eter
of
Num
-D
iam
-D
iam
-
Pip
eF
ace
of
Fla
nge.
Fla
nge,
Hub
,N
um
-D
iam
eter
,Dep
th,
Wid
thB
ott
om
Hei
ght,
Hub
,o
f C
ham
fer,
Bo
reec
tio
n,
Bo
ltb
er o
fet
er o
fet
er o
fR
aise
dR
ing
Sez
eR
Otf
Yb
erP
EF
rW
xA
BП
Cir
cle
Ho
les
Ho
les
Bo
lts
Fac
eJo
int
11
1/2 2
21
/2 3 46
.19
10
.00
1.5
03
.50
R3
75
.87
50
.31
20
.46
90
.03
1.0
65
.75
4.5
01
/27
.88
81
.00
7/8
5.5
06
.00
68
.50
12
.50
1.6
24
.06
R4
58
.31
20
.31
20
.46
90
.03
1.0
68
.12
6.6
31
/21
0.6
21
21
.00
7/8
6.2
56
.50
81
0.6
21
5.0
01
.88
4.6
2R
49
10
.62
50
.31
20
.46
90
.03
1.0
61
0.2
58
.63
1/2
13
.00
12
1.1
21
6.7
57
.25
10
12
.75
17
.50
2.1
24
.88
R5
31
2.7
50
0.3
12
0.4
69
0.0
31
.06
12
.62
10
.75
1/2
15
.25
16
1.2
51
1/8
7.5
08
.00
12
15
.00
20
.50
2.2
55
.38
R5
71
5.0
00
0.3
12
0.4
69
0.0
31
.06
14
.75
12
.75
1/2
17
.75
16
1.3
81
1/4
8.0
08
.50
14
16
.25
23
.00
2.3
95
.88
R6
11
6.5
00
0.3
12
0.4
69
0.0
31
.06
16
.75
14
.00
1/2
20
.25
20
1.3
81
1/4
8.2
59
.00
16
18
.50
25
.50
2.5
06
.00
R6
51
8.5
00
0.3
12
0.4
69
0.0
31
.19
19
.00
16
.00
1/2
22
.50
20
1.5
01
3/8
8.7
59
.25
18
21
.00
28
.00
2.6
26
.50
R7
92
1.0
00
0.3
12
0.4
69
0.0
31
.19
21
.00
18
.00
1/2
24
.75
24
1.5
01
3/8
9.2
59
.50
20
23
.00
30
.50
2.7
56
.62
R7
32
3.0
00
0.3
75
0.5
31
0.0
61
.25
23
.12
20
.00
1/2
27
.00
24
1.6
21
1/2
9.7
51
0.2
52
42
7.2
53
6.0
03
.00
6.8
8R
77
27
.25
00
.43
80
.65
60
.06
1.4
42
7.6
22
4.0
01
/23
2.0
02
41
.88
13
/41
1.0
01
1.5
0
GE
NE
RA
L N
OT
ES
:
(a)
Dim
ensi
ons
are
in i
nch
es.
(b)A
ll o
ther
dim
ensi
ons
are
in a
cco
rdan
ce w
ith A
SM
E B
16
.5.
(c)R
ing j
oin
t fl
ange
in N
PS
24
wil
l re
quir
e a
ngula
r m
eter
tap
as
sho
wn i
n F
ig.
2.
NO
TE
S:
(1)O
ther
NP
T s
izes
may
be
furn
ished
if
req
uir
ed.
(2)I
n c
onfo
rman
ce w
ith A
SM
E B
16
.5,s
tud
bo
lt l
ength
s d
o n
ot
incl
ud
e p
oin
t hei
ghts
.
(4)B
ore
is
to
be
spec
ifie
d b
y t
he
purc
has
er.
See Note (4).
Fo
r N
PS
3 a
nd
sm
alle
r, u
se c
lass
60
0
[(2
, (
3)]
Stu
d B
olt
s
Len
gth
of
(3)B
olt
len
gth
s fo
r ra
ised
fac
e fl
anges
in
clud
e al
low
ance
fo
r o
rifi
ce a
nd
gas
ket
thic
knes
s o
f 0
.25
in.
for
NP
S 4
-12
and
0
.38
in.
for
NP
S 1
4-2
4.B
olt
len
gth
s fo
r ri
ng t
yp
e jo
int
flan
ges
incl
ud
e al
low
ance
of
0.6
2 i
n.f
or
NP
S 4
-10
and
0.7
5 i
n f
or
NP
S 1
2-1
8.a
nd
0.8
8 i
n.
for
NP
S 2
0.
Rin
g T
yp
e Jo
int
Dri
llin
g T
emp
late
ASME B16.36-2006
Copyright ASME International Provided by IHS under license with ASME
No reproduction or networking permitted without license from IHS Not for Resale 18
ASME B16.36-2006
MANDATORY APPENDIX III REFERENCES
The following is a list of publications referenced in
this Standard.
ASME B1.20.1-1983 (R2001), Pipe Threaded, General Purpose (Inch)1
ASME B16.5-2003, Pipe Flanges and Flanged Fittings1 ASME B16.11-2001, Forged Fittings, Socket-Welding and
Threaded1 ASME B16.21-1992, Nonmetallic Gaskets for Pipe
Flanges1 ASME Boiler and Pressure Vessel Code, 2004 Edition:
Section I, Power Boilers; Section II, Materials; Section 1 May also be obtained from the American National Standards
Institute (ANSI), 25 West 43rd Street, New York, NY 10036 Copyright ASME International
19
III, Nuclear Power Plant Components; Section VIII, Divisions 1 and 2, Pressure Vessels1
Publisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, P.O. Box 2300, Fairfield, NJ 07007-2300
ISO 9000: 2000, Quality Management Systems — Funda- mentals and Vocabulary1
ISO 9001: 2000, Quality Management Systems — Requirements1
ISO 9004: 2000, Quality Management Systems — Guide- lines for Performance Improvements1
Publisher: International Organization for Standardiza- tion (ISO), 1 ch. de la Voie-Creuse, Case postale 56, CH-1211 Gene`ve 20, Switzerland/Suisse
Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
Not for Resale
ASME B16.36-2006
NONMANDATORY APPENDIX A QUALITY SYSTEM PROGRAM
The products manufactured in accordance with this
Standard shall be produced under a quality system pro- gram following the principles of an appropriate stan- dard from the ISO 9000 series.1A determination of the need for registration and/or certification of the product
1 The series is also available from the American National Standards Institute (ANSI) and the American Society for Quality (ASQ) as American National Standards that are identified by a prefix “Q” replacing the prefix “ISO.” Each standard of the series is listed under Mandatory Appendix III.
Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS
20
manufacturer’s quality system program by an indepen- dent organization shall be the responsibility of the man- ufacturer. The detailed documentation demonstrating program compliance shall be available to the purchaser at the manufacturer ’s facility. A written summary description of the program utilized by the product man- ufacturer shall be available to the purchaser upon request. The product manufacturer is defined as the entity whose name or trademark appears on the product in accordance with the marking or identification require- ments of this Standard.
Not for Resale
B16 AMERICAN NATIONAL STANDARDS FOR PIPING, PIPE FLANGES, FITTINGS, AND VALVES
Scheme for the Identification of Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A13.1-1996 (R2002) Pipe Threads, General Purpose (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.1-1983 (R2001) Dryseal Pipe Threads (Inch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1.20.3-1976 (R2003) Gray Iron Pipe Flanges and Flanged Fittings (Classes 25, 125, and 250) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.1-2005 Malleable Iron Threaded Fittings: Classes 150 and 300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.3-1998 Gray Iron Threaded Fittings: Classes 125 and 250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . B16.4-2006 Pipe Flanges and Flanged Fittings NPS1⁄2Through NPS 24 Metric/Inch Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.5-2003 Factory-Made Wrought Buttwelding Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.9-2003 Face-to-Face and End-to-End Dimensions of Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B16.10-2000 (R2003) Forged Fittings, Socket-Welding and Threaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.11-2005 Cast Iron Threaded Drainage Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.12-1998 Ferrous Pipe Plugs, Bushings, and Locknuts with Pipe Threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.14-1991 Cast Copper Alloy Threaded Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.15-2006 Cast Copper Alloy Solder Joint Pressure Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.18-2001 Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B16.20-1998 (R2004) Nonmetallic Flat Gaskets for Pipe Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.21-2005 Wrought Copper and Copper Alloy Solder Joint Pressure Fittings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.22-2001 Cast Copper Alloy Solder Joint Drainage Fittings: DWV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.23-2002 Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 600, 900, 1500, and 2500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.24-2006 Buttwelding Ends. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . B16.25-2003 Cast Copper Alloy Fittings for Flared Copper Tubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.26-2006 Wrought Steel Buttwelding Short Radius Elbows and Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . B16.28-1994 Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings — DWV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.29-2001 Manually Operated Metallic Gas Valves for Use in Gas Piping Systems up to 125 PSI (Sizes NPS1⁄2Through NPS 2). . . . . . . . . . . . . B16.33-2002 Valves — Flanged, Threaded, and Welding End. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.34-2004 Orifice Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.36-2006 Large Metallic Valves for Gas Distribution (Manually Operated, NPS 21⁄2to 12, 125 psig Maximum) . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .B16.38-1985 (R2005) Malleable Iron Threaded Pipe Unions: Classes 150, 250, and 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . B16.39-1998 Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.40-2002 Functional Qualification Requirements for Power Operated Active Valve Assemblies for Nuclear Power Plants . . . . .. . . . . .B16.41-1983 (R1989) Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and 300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.42-1998 Manually Operated Metallic Gas Valves for Use in Aboveground Piping Systems Up To 5 PSI . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . B16.44-2002 Cast Iron Fittings for Sovent®Drainage Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.45-1998 Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.47-2006 Line Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B16.48-2005 Factory-Made Wrought Steel Buttwelding Induction Bends for Transportation and Distribution Systems . . . . . . . . . . . . . . . . . . . . . . . B16.49-2000 Wrought Copper and Copper Alloy Braze-Joint Pressure Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . B16.50-2001 Power Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.1-2004 Fuel Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . B31.2-1968 Process Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.3-2004 Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . B31.4-2002 Refrigeration Piping and Heat Transfer Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . B31.5-2001 Gas Transmission and Distribution Piping Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . B31.8-2003 Building Services Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . B31.9-2004 Slurry Transportation Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.11-2002 Manual for Determining the Remaining Strength of Corroded Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31G-1991 (R2004) Welded and Seamless Wrought Steel Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B36.10M-2004 Stainless Steel Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B36.19M-2004 Self-Operated and Power-Operated Safety-Related Valves Functional Specification Standard . . . . . . . . . . . . . .. . . . . . . . . . . .N278.1-1975 (R1992) The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary catalog, or the latest information about our publications, call 1-800-THE-ASME (1-800-843-2763).
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ASME B16.36-2006
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