JERES G 005 Centrifugal Pumps

JERES-G-005 Centrifugal Pumps

Revision 0

Responsibility JER Engineering Department

29 April 2008

Jubail Export Refinery Engineering Standard

Jubail Export Refinery Engineering Standards

JERES-G-005 Rev-0 Centrifugal Pumps 29 April 2008

This document is the property of Jubail Export Refinery and no parts of this document shall be reproduced by

any means without prior approval by the Company.

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Revision Tracking

Revision Revision Date Scope of Revision

0 29 April 2008 Issued for bid package.

03 31 March 2008 Issued for bid package only for review.

02 23 July 2007 Update of seal selection chart

01 13 March 2007 First Issue. Revised to match new JERMS numbering system.

00 25 January 2007

First draft issued is based on Saudi Aramco SAES-G-005 Centrifugal Pumps under revision, and modified to incorporate modifications on pump design and seal selection from TOTAL specifications GS GR MEC 101 and GS RM MEC 106.





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Table of Contents

Section Contents Page

1 Scope 4

2 Conflicts, Deviations and Clarifications 4

3 References 4

4 Definitions 5

5 General Design Requirements 6

6 Installation 14

7 Testing and Inspection 15

Appendixes

A Shaft Seal Selection Procedure and Charts 16

B Guidelines for the definition of a pumped fluid composition and its Material Safety Data S for use with Appendix A 21

C Material Selection Guide 22

D Test Requirements for Centrifugal Pumps 23





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1 Scope

1.1 This standard defines the minimum mandatory requirements governing the design and installation of centrifugal pumps for Jubail Export Refinery.

1.2 Pumps having driver rating equal to or less than 50HP and are in community water or sewage services are not required to comply with this standard.

1.3 This standard sets the rules and basis for selecting the applicable Jubail Export Refinery Engineering Standards and/or Material Specifications that supplement the applicable Codes.

2 Conflicts, Deviations and Clarifications

2.1 Any conflicts between this standard and other applicable Company Engineering Standards (JERES), Material Specifications (JERMS), Standard Drawings (JERSD), Engineering Procedures (JEREP), Company Forms or Industry standards, specifications, Codes and forms shall be brought to the attention of Company Representative by the Contractor for resolution.

Until the resolution is officially made by the Company Representative, the most stringent requirement shall govern.

2.2 Where a licensor specification is more stringent than those of this standard, the Licensors specific requirement shall apply.

2.3 Where applicable Codes or Standards are not called by this standard or its requirements are not clear, it shall be brought to attention of Company Representative by Contractor for resolution.

2.4 Direct all requests for deviations or clarifications in writing to the Company or its Representative who shall follow internal Company procedure and provide final resolution.

3 References

The selection of material and equipment, and the design, construction, maintenance, and repair of equipment and facilities covered by this standard shall comply with the latest edition of the references listed below as of the CUT-OFF DATE as specified in the Contract unless otherwise noted.

3.1 Company References





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3.1.1 Company Engineering Standards

JERES-B-017 Firewater System Design

3.1.2 Company Material Specifications

JERMS-G-3104 Centrifugal Pumps

JERMS-G-3112 Shaft Sealing systems for Rotary and Centrifugal Pumps

3.2 Industry Codes and Standards

American Petroleum Institute

API 610 10th edition Centrifugal Pump For Petroleum, Heavy Duty Chemical And Gas Industry Services

API 685 1st edition Sealless Centrifugal Pump For Petroleum, Heavy Duty Chemical And Gas Industry Services

ASME and ISO Standards

ASME B73.1 Specification for Horizontal, End Suction Centrifugal Pumps for Chemical Process

ASME B73.2 Specification for Vertical In-Line Centrifugal Pumps for Chemical Process

ISO 5199 Technical specification for centrifugal pumps- Class II

ISO 13709 Centrifugal pumps for petroleum, petrochemical and natural gas industries

4 Definitions

4.1 Definitions presented in this Standard and other JER documents have precedence over other definitions. Conflicts between various definitions shall be brought to the attention of Company Representative by the Contractor for resolution.

Company: Jubail Export Refinery.

Company Representative: A designated person from the Company or an assigned third party representative.

Company Inspector: A designated person or an agency responsible for conducting inspection activities on behalf of the Company.





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4.2 List of Definitions Combustible Liquid: A liquid that has a flash point greater than 54C. Flammable Liquid: A liquid that has a flash point equal to or less than 54C. For purposes of this Standard, a combustible liquid processed at a temperature equal to or higher than 8C below its flashpoint shall be considered to be a flammable liquid. Flashing Liquid: A flammable liquid with a true vapor pressure greater than 90 kPa(abs) at 54C. Molten Sulfur: Sulfur in the liquid state (119oC to 154oC) produced as a by-product of petroleum production/refining

5 General Design Requirements

5.1 General

5.1.1 Unless otherwise specified and except for those complying with paragraphs 5.1.2, 5.1.3, 5.1.4 and 5.1.5 centrifugal pumps shall comply with JERMS-G-3104.

5.1.2 Horizontal pumps per ASME B73.1, ASME B73.2 or ISO 5199 can be used for non-hydrocarbon provided that:

a) Discharge pressure does not exceed 19 Bar gauge (275 psig);

b) Suction pressure does not exceed 5.2 Bar gauge (75 psig);

c) The temperature of the pumped liquid is not less than 0C (32F) and does not exceed 120C (250F);

d) The vapor pressure of the pumped liquid is less than 2 Bar abs (30 psia) at the maximum operating temperature;

e) The driver nameplate rating (excluding any service factor) does not exceed 112 kW (150 HP).

When space limitations do not permit the use of horizontal end suction pumps per ASME B73.1 or ISO 5199, vertical-inline pumps per ASME B73.2 or ISO 5199 may be acceptable.

5.1.3 Pumps per ASME B73.1, ASME B73.2 or ISO 5199 may also be used for hydrocarbon service provided that:

a) Discharge pressure does not exceed 19 Bar gauge (275 psig);

b) Suction pressure does not exceed 5.2 Bar gauge (75 psig);





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c) The driver nameplate rating does not exceed 75 kW (100 HP).

d) The temperature of the pumped liquid is not less than 0C (32F) and does not exceed 65C (150F);

e) The vapor pressure of the pumped liquid is less than 1.72 Bar abs (25 psia) at the maximum operating temperature.

5.1.4 Firewater pumps shall comply with the requirements of NFPA 20 and JERES-B-017 and rotating speed shall not exceed 1800 RPM.

Jockey pumps shall comply with the hydraulic and operating requirements of NFPA 20 and JERES-B-017. Horizontal jockey pumps may operate at 3600 RPM. Vertically suspended jockey pumps shall not exceed 1800 RPM.

5.1.5 Vendor's standard design pumps may be provided for:

a) Vertical suspended pumps having driver ratings not exceeding 110 kW (150 HP) are in open sump service;

b) Vertical suspended pumps (including vertical cantilever type with suction tail pipe) in oily water and storm water applications;

c) Pumps operating for molten sulfur service.

d) Horizontal self priming pumps that are used in open sump service with a suction lift not exceeding 6 m (20 ft);

e) Pumps that are used in domestic sewage or sewage effluent service;

f) Between bearings pumps and vertical suspended pumps that are used in utility water service, having driver ratings less than 187 kW (250 HP).

g) Submerged pumps for basins in oily water, storm water and sanitary water applications.

5.1.6 Pump Type Selection

5.1.6.1 Horizontal pumps shall be used unless suction conditions or space limitations prohibit their application. The use of horizontal overhung double suction or horizontal overhung two stage pumps is not acceptable.

5.1.6.2 Vertically suspended double casing pumps shall be used if suction conditions prohibit the use of horizontal pumps.

5.1.6.3 Maximum operating speed of vertically suspended pumps shall not exceed 1800 RPM.





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5.1.6.4 The use of high speed vertical in line pumps requires approval of JER Engineering Manager.

5.1.6.5 Non-metallic side discharge pumps may be used in sump service provided that all of the following conditions are met:

a) The selection of a metallic type pump is unsuitable due to anticipated corrosion rates > 127 micrometers/year (5 mils/year).

b) The pump driver rating does not exceed 37 kW (50 HP).

c) The maximum discharge pressure does not exceed 1 Bar gauge (150 psig).

5.1.6.6 Horizontal direct drive self priming pumps may be used for oily water sump services when suction lift does not exceed 6 m (20 ft). If self priming pumps are used to discharge into pressurized system, an automatic air release valve or continuous bleed with orifice shall be provide.

5.1.6.7 Sealless pumps shall be provided for caustic, acid and sour water services if the motor nameplate rating does not exceed 112 kW (150 HP). Sealless pumps used for hydrocarbon or toxic services shall comply with JERMS-G-3104 Specification.

All sealless pumps shall be self venting and shall be designed to permit complete drainage prior to dismantling. The use of a sealless pump in glycol or amine services is acceptable but not mandatory.

The use of vertical sealless pump requires the approval of JER Engineering Manager

Magnet Drive Pumps shall not be used if the pumped liquid contains ferrous or iron oxide particles and no external clean flush is available.

5.1.6.8 Canned Motor Pumps

a) Pumps equipped with variable speed controllers and which operate at speeds in excess of 3,600 RPM require approval of JER Engineering Manager

b) Stator housing and liner hydrostatic tests are required for each pump. The test pressure shall be the pump MAWP.

c) A dielectric test using a polarization index ratio based on one minute and ten minute readings, is required for each motor.

d) A thermal device shall be installed in the motor stator winding to trip the motor on high winding temperature.





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e) A low power switch shall be provided to protect the pump against dry run operation.

5.1.6.9 Magnetic Drive Pumps.

a) The operating speed of magnet drive sealless pumps shall not exceed 3,600 RPM.

b) Direct mounted drive coupling to motor are not acceptable. A dry flexible coupling shall be used between the motor and the pump.

c) The magnetic coupling torque rating shall exceed the maximum torque of the pump with maximum diameter impeller from minimum continuous stable capacity to 120% of rated capacity by the following factors, based on the calculated torque of the coupling.

Calculated Torque

Nm Calculated Torque

ft-lbf Synchronous Coupling

Rating Factor 111 1.10

For molten sulfur application, the factor shall be 1.5 for all calculated torque value.

d) Magnet drive pumps having metallic containment shells shall be provided with

containment shell temperature monitoring and protection. e) A low power switch shall be provided to protect the pump against dry run

operation.

5.1.7 Unit responsibility for the complete pump train including driver, gear, oil system(s), etc., shall be assigned to the pump manufacturer. Exception may be made when the driver is a diesel engine, special purpose steam turbine or combustion gas turbine.





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5.2 Rated Operating Conditions

5.2.1 The NPSHA at rated flow shall be determined based on minimum suction pressure at pump suction nozzle and pumped product vapor pressure at maximum pumping temperature.

5.2.2 Viscosity correction factors, per the Hydraulic Institute Standard, shall be applied. Extrapolation is not recommended. Correction factors for water are 1:1:1. Limitations on use of viscous liquid performance correction chart are:

a) Use only for pumps of conventional hydraulic design, in the normal operating range, with open or closed impellers. DO NOT use for mixed flow or axial flow pumps or for pumps of special hydraulic design for either viscous or non-uniform liquids.

b) Use only on Newtonian (uniform) liquids. Gels, slurries and other non-uniform liquids may produce widely varying results, depending on the particular characteristics of the liquids.

5.2.3 The expected minimum and maximum suction pressure shall be specified.

5.3 Hydraulic Performance

5.3.1 Pumps complying with JERMS-G-3104 shall have a continuous head rise from the rated head to shutoff and it shall not be less than 10% of the rated head. For ASME and ISO pumps and pumps to manufacturer's standard design, integrated orifice in the casing might be used to achieve the 10% head rise. Firewater pumps are excluded from the 10% head rise requirement.

5.3.2 For ASME, ISO pumps and pumps to manufacturer's standard design, the rated capacity shall be between 60% to 110% of the capacity at best efficiency point.

5.3.3 For all pumps, the margin between NPSHA and NPSHR shall not be less than 0.5m over the range of minimum continuous stable capacity to 120% of the rated capacity. For variable speed pumps, the above NPSH requirements apply for all speeds required to meet the specified operating conditions.

The difference between the NPSHA and the NPSHR at the rated point shall be greater than 20% of the NPSHA.





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5.3.4 For all pumps, with exception of pumps having speed of 6000 RPM or higher, the suction specific speed, based on the NPSH required for 3% first stage head drop at best efficiency capacity, without inducer, shall be limited as indicated in the table below:

Q in M3/sec, Q in M3/hr Q in USGPM Suction specific speed

S=N(Q)0.5/(NPSHR)0.75 NPSHR in Metres NSPHR in ft Maximum allowable (all pumps) 252 15100 13000

Maximum preferred 213 12780 11000

Maximum allowable for pumps handling liquefied gases, volatile liquids or containing dissolved gases

213 12780 11000

5.4 Casing Design

5.4.1 The maximum allowable working pressure shall be at least equal to the sum of the maximum suction pressure and the differential pressure developed at shut of with maximum fluid density, maximum impeller diameter and at 105% of motor synchronous speed for fixed speed motor driven pumps or at trip speed for variable speed drive.

Exception can be taken when a discharge relief valve is installed (MAWP shall then be at least equal to relief valve setting).

The MAWP of the bowl and column assemblies of vertical suspended pumps shall be at least equal to the maximum differential pressure developed by the bowl assembly at shut-off.

5.4.2 Casing design temperature shall be at least equal to the maximum flow temperature plus 50C. For pumps handling liquids which may autorefrigerate, the minimum design temperature shall be the lowest liquid temperature which would occur as a result of rapid reduction in liquid pressure to 25% of the pump design operating pressure.

5.5 Shaft Sealing

5.5.1 Seal Codes and Applications

5.5.1.1 Mechanical seals shall be in accordance with Appendix A, Mechanical Seal Selection Guide.





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Centrifugal pumps in accordance with specification JERMS-G-3104 or handling toxic or flammable liquid shall have their mechanical seals in accordance with specification JERMS-G-3112 .

Note: The seal codes used in Appendix A are based on API 682 3rd Edition terminology.

5.5.1.2 Packing or labyrinth is required for main firewater pumps and for non hydrocarbon slurry pumps. Jockey pumps shall have mechanical seals.

5.5.1.3 Vertical pumps in oily water, raw water or sea water service shall be provided with a bleed type discharge head bushing, deflector ring and a labyrinth seal instead of a mechanical seal or packing.

5.6 Bearings and Bearing Housings

5.6.1 Bearings shall be oil lubricated, except for firewater pumps that may use grease lubricated anti friction bearing. With the exception of pumps having external lube oil system, the following shall be installed on the bearing housings of oil lubricated pumps:

Constant level oiler

Level sight glass

If oil mist lubrication is specified, it shall be of the purge oil mist type.

5.6.2 It shall be verified for vertical pumps that the upthrust and downthrust values listed are within the bearing design criteria of the driver or transmission unit which absorbs the rotor thrust.

5.7 Materials of Construction

5.7.1 The metallurgy application guides of API 610 10th edition and Appendix C of this standard provide a listing of most liquids pumped, with associated material selection (Material codes used are those of the API 610 10th edition).

Substitute equivalent or superior materials shall be reviewed and approved by JER Engineering Manager. For any requested materials substitution, sufficient data shall be provided by the Vendor to justify the substitution. This data shall include but shall not be limited to physical, mechanical and corrosion resistance properties.





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5.7.2 Materials of construction for fluids not listed in API 610 10th edition or in Appendix C of this standard may be based on information provided in publications, recommendations provided by pump manufacturers or other accepted sources. In such cases, the material selection as proposed by the manufacturer shall be reviewed and approved by JER Engineering Manager.

5.8 Couplings and Guards

5.8.1 Lubricated couplings are not permitted.

5.8.2 For horizontal pumps, vertical in-line and vertically suspended pumps having thrust bearings and not driven by reciprocating engines, flexible disc pack or diaphragm type couplings are required.

5.8.3 Rigid adjustable spacer type couplings are required for vertical in-line and vertically suspended pumps not having thrust bearings.

5.8.4 Elastomeric type couplings or couplings having comparable torsional stiffness are required for pumps driven by reciprocating engines and for pumps in frequent on and off operation such as loading and unloading pumps at bulk plants. The elastomeric members shall not deteriorate due to exposure to a hydrocarbon environment.

5.9 Drivers

5.9.1 The drivers for ASME and ISO pumps and for pumps to manufacturer's standard design shall be sized in accordance with the following table:

Driver Nameplate Rating

kW HP Minimum Percentage of Pump Rated Power

75 110

5.10 Mounting Plates

Horizontal Pumps:

A baseplate is required for grouted, permanently installed equipment.





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Vertical Pumps:

Sump mounted vertical pumps shall be provided with a grouted, permanently installed soleplate or surface plate to which the mounting plate or flange of the pump will attach. Removal of the pump for maintenance shall not require removal of the grouted soleplate or surface plate. Studs shall be installed in the soleplate or surface plate to match the pump mounting plate or flange. The only exception to this requirement is when sump pumps are mounted on a steel sump cover plate. In this case, the sump cover plate shall have studs installed to match the pump mounting plate or flange. Bolts may be used instead of studs for the sump cover plate if provided with a minimum of two guide rods.

5.11 Auxiliary Piping

For toxic liquids or liquids which vaporize at atmospheric conditions, drains and/or vent piping (within the confines of the baseplate) including block valves and flanged terminations at the edge of the baseplate shall be specified.

6 Installation

6.1 Layout

6.1.1 Pumps shall be located for convenience of operation and maintenance requirements. The pump train arrangement shall ensure safe and easy access to all equipment train components for operation and maintenance purposes.

6.1.2 Provisions for isolation, venting and draining the pump shall be installed to permit internal inspection, repair or dismantling.

6.1.3 Wherever possible, when more than one identical pump train is required, the design of the equipment trains, the auxiliary baseplate(s), the connecting piping, cabling, wiring, etc., shall be identical in layout, construction and accessibility.

6.2 Process Piping

6.2.1 A minimum flow bypass system shall be provided for pumps having driver power rating higher or equal to 500 kW (670 HP), and for pumps that are installed in a system where pump flow is controlled by a process level control valve and having their driver power rating above 110 kW (150 HP).

The bypass system piping shall be connected to the pump discharge piping upstream of the check valve. If flow element is provided for the minimum flow bypass system, it shall measure the flow in the discharge piping upstream of the bypass





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system piping connection. If flow control valve is provided for the minimum flow bypass system, the control valve shall be set to open, as auto position mode, for pump startup.

6.2.2 Maximum forces and moment given by the process piping to pump nozzle shall be within the limitation given in API 610, 10th edition, table 4, for any of the operating condition of the pump as well as when the equipment is not running. Annex F of API 610 10th edition shall not be used.

6.3 The pump manufacturer's General Arrangement (G.A.) or outline drawings shall include all data required including nozzles, shaft centerline and baseplate foundation bolt coordinates to install the pump on its foundation. G.A. drawings shall also show Buyer's references and the main rating data of equipment components.

7 Testing and Inspection

7.1 Pumps require testing per Appendix D of this standard shall be tested at rated speed. If this is not feasible, the Vendor shall advise his proposed vibration acceptance criteria at his specified derated speed. Vibration data and bearing temperatures shall be recorded.

7.2 Pumps shall be dismantled in the event of unsatisfactory performance, NPSH or running tests or if mutually agreed upon by the Vendor and the Buyer.

7.3 Vibration and temperature measurements shall be taken and recorded for all certified or witnessed tests of pumps.





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Appendix A: Shaft Seal Selection Guide The selection procedure chart (chart 1) defined in this appendix specifies the seal arrangement required based primarily on the Dangerous Substances Directive 67/548/EEC risk phrase classification of the pumped fluid. The seal type shall be selected according to the selection logic included in ISO 21049:2004 / API 682 3rd Ed. Annex A sheets 3, 4 & 5 and the applicable clause of this specification. The flush plan shall be selected according to the selection logic included in ISO 21049:2004 / API 682 3rd Ed. Annex A sheets 7, 8 & 9. The flush plan orders of preference are listed in this appendix with a number of limitations listed in the remarks column. The purchaser shall supply the vendor the applicable details from the Material Safety Data Sheet. These shall include :

Chapter 2 Composition / component data, especially Constituent components contributing to hazards.

Chapter 8 Exposure controls/personal protection, especially occupational exposure limits.

Chapter 15 Regulatory data especially the applicable R phrases For further details on Material Safety Data Sheets, refer to Appendix B. All possible combinations of R phrases have been grouped into 4 groups. Using the data from chapter 15, the pumped fluid R phrases shall be examined individually to establish the applicable R phrase group and the most sever (lowest group number) shall be used for the selection procedure. If the R phrases lead to a selection of group III or IV but chapter 8 recommends or imposes exposure limits then the pumped liquid shall be considered group II. The chart 2 hereafter shall be used for all group II liquids and shall be applied for each constituent component contributing to the hazard from chapter 2. The x-axis represents the % of the component the contributes to the hazard (e.g. 1% Benzene in gasoline). The sloping lines represent the TLV-TWA exposure limit for that component (e.g. 1 ppmv for Benzene). The intersection of the % component and the ppmv limit can be read on the y-axis as the seal arrangement required. If required, conversions from mg/M3 to PPMV at different temperatures shall be made using the conversion charts 3 and 4 also part of this Appendix.





Chart 1 Pump Shaft Seal Arrangement Selection Chart

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Chart 2 Pump seal arrangement selection for Goup II R-phrases or substances with recommended or imposed exposure limits shown on Material Safety Data Sheet

Pum

p Se

al A

rran

gem

ent s

elec

tion

for G

roup

II R

-phr

ases

or s

ubst

ance

s w

ith re

com

men

ded

or im

pose

d ex

posu

re li

mits

sho

wn

on M

ater

ial S

afet

y D

ata

Shee

t

51050100

500

1000

5000

1000

0

2.5

A3

A2

A1+

0.1

110

100

% o

f com

pone

nt c

ontri

butin

g to

haz

ard

Selected Seal Arrangement

PPM

V Ex

posu

re

limit

for

cont

ribut

ing

com

pone

nt.

TWA

A1

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Chart 3 Conversion from mg/m3 to ppmv at 25C

mg/

m3 c

onve

rsio

n to

ppm

v at

25

C a

nd a

tmos

pher

ic p

ress

ure

28.5 50 75 100

150

0.1110100

1000

1000

0

110

100

1000

1000

0

mg/

m3

ppmv

Mol

wei

ght

(g

/mol

)

Page 19 of 23





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Chart 4 Correction factor mg/m3 to ppmv

Cor

rect

ion

fact

or m

g/m

3 to

ppm

v

0.5

0.6

0.7

0.8

0.91

1.1

1.2

1.3

1.4

1.5 -

50-3

0-1

010

3050

7090

Am

bian

t tem

pera

ture

C

Correction factor multiply by





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Appendix B Guidelines for the definition of a pumped fluid composition and its Material Safety Data Sheet for use with Appendix A

The seal selection described in Appendix A requires that a Material Safety Data Sheet (MSDS) be written for the pumped fluid and all alternative fluids for which the pump is specified.

The MSDS may be prepared by the Purchaser or by a sub vendor, provided that MSDSs are validated by a qualified JER representative.

To prepare an MSDS the author requires the fluid composition to be presented as a list of substances with the weight percentage of each substance within the fluid mixture.

Each substance referenced within the list must be identified by :

Name and either CAS (Chemical Abstract Service USA) number

EINECS (European Inventory of Existing Commercial substances) number

or

INDEX number (Index number from the Directive of Dangerous Substances 67/548/CE )

For CHEMICAL substances which are commercially available the manufacturers supply an MSDS and the above data is easily found.

For Petroleum substances the CONCAWE (CONservation of Clean Air and Water in Europe) report N 6/05 (http://www.concawe.org/Content/Default.asp?PageID=63) groups petroleum substances and Appendix 2A of the report lists these substances with their EINECS, CAS and Index numbers.

The composition of pumped fluids must be presented in a format similar to the example below :

Product Name Operating Case X Full Name Code EINECS CAS INDEX N Wt % Medium Sulphur Gas Oil MSGO 265-043-1 26 Light Vacuum Gas Oil LVGO 64741-82-8 17 Visbreaker Gas Oil VBGO 649-435-00-3 14 Light Cycle Oil LCO 256-060-4 64741-59-9 649-435-00-3 43

Only one of the references (EINECS, CAS INDEX) needs to be filled in.





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Appendix C Material Selection Guide

Pump materials shall be selected into API 610 10th edition, table G1 and the following table: (Material code are those used in API 610 10th edition)

Service Temperature Range (C)

Material Class

note

Fresh water, condensate, cooling tower water < 100 I-1 or S-1 1 Brackish or Briny cooling water < 80 I-2 2 Boiler feed water ph > 7

170

S-1 S-5 C-6

Boiler feed water (other cases) All C-6 Foul water and hydrocarbons containing these waters < 120

120 to 170 S-3 S-6

3

Non corrosive hydrocarbons & liquefied gases >-20 to 290 S-5 S-6

Corrosive hydrocarbons containing Chlorides and/or Sulfides (DAT, HDT, DGO...)

< 150 150 to 260

> 260

S-5 S-6 C-6

3

Caustic (sodium hydroxide) concentration < 20 % weight) < 60 60 to 90

S-1 S-3

3 4

MDEA stock solutions < 120 S-1 DEA, MDEA lean (in H2S) solutions < 120 S-1 4 DEA, MDEA rich (in H2S) solutions < 80 S-1 4 De-aerated sea water < 60 A8 5 Sea water (other cases) < 60 Duplex

Notes 1) Pressure casing in SG ductile iron. (EN 1563). 2) Pressure casing in Ni resist ductile iron (ASTM A 439) 3) Impeller in Ni resist ductile iron (ASTM A 439) 4) All welds shall be stress relieved 5) Type 316L with Mo > 2.5 %





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Appendix D Test Requirements for Centrifugal Pumps (1)

Manufacturer Standard ASME & ISO JERMS-G-3104

HydrotestWitnessed Certified

No

No (3)

No Yes

Yes Yes

Running/Performance (5) Witnessed Certified

No

Yes (3)

No (2) Yes

Yes (2) Yes

NPSH Testing (4) Witnessed Certified

No

No (6 & 3)

No (2)

Yes (6&3)

Yes (2)

Yes (6&3)

Notes:

1) These test requirements apply only to pumps supplied by Vendors known to the Buyer. Pumps ordered from new sources shall be fully witness tested and inspected except for manufacturer standard pumps.

2) If more than one pump on the same Purchase Order of identical type, design and design conditions are presented for inspection as a lot, the test requirements shall be as follows:

For pumps having a driver nameplate power higher or equal to 110 kW (150 HP) all pumps shall be fully witness tested.

For pumps having a driver nameplate power lowe rthan 110 kW (150 HP), one selected at random shall be fully witness tested. The remaining pumps shall be fully shop tested and test certificates shall be provided;

3) All tests for canned motor sealless pumps and pumps in firewater and molten sulfur services shall be certified.

4) Open pit sump pumps require a minimum submergence test in lieu of an NPSH test. Sea water intake pumps shall be tested for both NPSH and minimum submergence.

5) All certified and witnessed pump performance/running tests shall be conducted using calibrated drivers.

6) NPSHR testing shall be performed for all pumps except Manufacturers standard pumps.

2 Conflicts, Deviations and Clarifications4 Definitions

Documents

JERES G 005 Centrifugal Pumps