GAIL (India) Limited · (BID DOCUMENT NO.: 11/0230/JPK/GAIL/07-R0) LIMITED INTERNATIONAL...

GAIL (India) Limited (A Govt. of India Undertaking)

CHAINSA-JHAJJAR-BAMNOULIPIPELINE PROJECT

BID DOCUMENT FOR

USM AND METERING SKID

CORRIGENDUM 1

(BID DOCUMENT NO.: 11/0230/JPK/GAIL/07-R0)

LIMITED INTERNATIONAL COMPETITIVE BIDDING

Issued byyy

yy

GAIL (India) Limited CHAINSA – JHAJJAR PIPELINE PROJECT

A 23.10.2008 CORRIGENDUM 1 PS AKA PKS

REV. DATE DESCRIPTION PREP CHKD APPD

1

CORRIGENDUM - 1

1

BID DOCUMENT NO. REV

11/0230/JPK/GAIL/07-R0 A CORRIGENDUM I

SHEET 2 OF 5

Document Name: Volume I of II COMMERCIAL

S.No. PageNo.

Clause No. Section Subject Addition/Deletion/ Modification

1 2 1.2.2 IFBBid

Document No.

E Tender No. Shall be read as 8000000644

2 23 31.1 A (vi) & B (iii) ITB

Evaluationand

Comparison of Bids

“Fifteen (15)” shall be read as “Twenty (20)”

3 2431.1 C (Indian

Bidder - v & Foreign Bidder - vi)

ITB

Evaluationand

Comparison of Bids

“Fifteen (15)” shall be read as “Twenty (20)”

Document Name: Volume II of II TECHNICAL

Document Number: 11-0230-01-11-06-001 Rev. B Stamped Page no 7

1.2 Description of Equipment and/or Services

ITEMNO.

DESCRIPTION QTY

1 LOCATION: DISPATCH STATION AT CHAINSA

� 3 Nos. of Ultrasonic Gas Flow Meter with upstream & downstream meter runs. Minimum straight lengths and profiler with 10 D US of Profiler + Profiler + 10 D DS of Profiler + meter + 5 D DS of Meter shall be supplied by Bidder (Bidder to use straight lengths + profiler during wet Calibration). Bidder to wet the GAD’s/ Piping Details developed by contractor and suggest final upstream/downstream straight length distances.

� Wet Flow Calibration from accredited flow labs.

� 1 No. Gas Chromatograph with accessories, tubes, fittings, regulators, valves etc, calibration gas cylinders, Carrier gas cylinders and GSM Modem for remote monitoring as per Technical spec.

� Supply/Testing of Metering Panel including wiring and fitting of all instruments and accessories including Flow Computer(3 Nos), GC Controller/Display Unit along with Printer, isolators, barriers, repeaters, power supply units, lamps, relays, annunciator etc

� Pressure & Temperature Transmitters with Thermowell.

� Interconnecting Special Cables between Flow meter and Metering Control Panel. RS 485 Cable from meters in field to flow computers in control room to be supplied by Bidder.

1 lot

2



SHEET 3 OF 5

� Special Cable (such as RS 485 or any special cable) between GC Field Unit/GC controller and Display Unit in control room to be supplied by Bidder.

� Serial Interface Cable (such as RS 485/ RS 232 cable) from Flow Computer and GC Display unit to RTU to be supplied by Bidder.

� Supply of 1 No. Laptop loaded with FC software and GC software for necessary configuration downloading data for FC/GC as and when required along with portable printer, along with suitable cable between Meter/ Gas chromatograph and laptop in safe area/Control Room.

* Tentative distance between field and control room can be taken as 100 meters.

Mandatory Spares as per Appendix 8 of Package Unit Instrumentation

Supervision of Erection, Testing And Commissioning by Bidder for 20 days. Bidder to quote per diem rates, inclusive of all expenses like travel, boarding, lodging etc.

LOCATION: BAMNOULLI TOP (SV- 4)

Description of Equipment and/or Services remains unchanged

Mandatory Spares as per Appendix 8 of Package Unit Instrumentation

2

Supervision of Erection, Testing And Commissioning by Bidder for 20 days. Bidder to quote per diem rates, inclusive of all expenses like travel, boarding, lodging etc.

Document Number: 11-0230-01-11-02-007 Rev. B Stamped Page No. 29

3.0 SCOPE OF WORK 3.2 ii) Self Actuated pressure Control Valve (Monitor), FCV and SSV separately as indicated in the

P&ID.3.3 The skid shall be complete in all respects, ready for installation and commissioning at the respective

site. There shall be minimum work to be done at site. All field mounted instruments shall be supplied loose to avoid damages of same during transportation of the skid. However, PCV, FCV, Slam Shut, Ultrasonic flow meter, and flow Profiler shall be duly mounted on the skid. The flow computer shall be fully configured and all the necessary data as per data sheet should be recorded in FC to minimise site work. The details regarding installation of metering skid, shall be clearly described in the “Installation Manual” especially made for metering skid installation and the same shall be submitted while despatching skids to various sites.

Stamped Page No. 32

3.39 Flow profiler shall be provided at the ultrasonic meter inlet to eliminate swirls and cross current setup by the pipe fittings, valves or regulators preceding the meter inlet piping where specified. Flow Profiler shall be according to AGA Report No. 8 & 9. Flow Profiler shall be of suitable design to meet tender

3



SHEET 4 OF 5

specification. Bidder shall furnish complete details/design of straight length (upstream/downstream) arrived at.

Document Number: 11-0230-01-11-02-009 Rev. B Stamped Page No. 50

3.2.1 Each metering stream shall at least include the following equipment:

� One Pneumatic (Gas over oil Actuated)/manual, inlet double block and bleed integrated isolation valve, (with open/close proximity switches and solenoid valve for remote operation). This valve shall be equipped with a by-pass for line pressurisation. This by-pass shall be composed of one isolation valve and one manually operated globe or plug valve.

The CONTRACTOR shall specify the valve stroke time required to avoid unacceptable acceleration torsion in the ultrasonic meters.

(Refer P&ID for Metering Skid at Chainsa and Bamnoulli.)

Other descriptions remains unchanged.

Document Number: 11-0230-01-11-02-10 Stamped Page No. 61

4.0 DESCRIPTION OF THE GAS PRESSURE LETDOWN SKID

Process data for the gas pressure letdown skid are given in the Process Design Basis.

The gas pressure letdown skid shall include the necessary equipment to perform safely the operation for which it is designed. It shall be equipped with, but not limited to (see also the relevant P&ID):

� One process connection at inlet (600 # according piping classes).� Two process connection at outlet (600 # according piping classes).


Document Number: 11-0230-01-11-02-014 Rev. B Stamped Page No. 87 3.1.1 The turndown ratio of each flow meter shall be minimum 1:40. The accuracy of the Ultrasonic flow meter

shall be ± 0.3 %(including Lab uncertainty) or better and repeatability shall be better than ±0.1% of reading and accordingly Bidder shall select the no. of paths to meet accuracy requirement and indicate the same in calculations/back-up literature.


Stamped Page No. 94

6.0 INSPECTION AND TESTING

6.4.2 The Ultrasonic meters shall be ‘flow calibrated’ with natural gas and shall have calibration certificate duly signed by weights and measures authority such as NMI, PTB or other reputed National Standard laboratory of its country of origin such as Trans Canada Calibrations, (TCC) Canada ,Colorado Engineering Experiment Station Inc.(CEESI) USA ,South West Research Inc. (SWRI) USA. Accuracy with

4



SHEET 5 OF 5

wet flow calibration shall be demonstrated within ±0.3% for multi path type under flow conditions in the turndown ratio of 1:40. The meter proving system to be used by Bidder shall be traceable to international standards and uncertainty of meter proving system shall be furnished. Gas metering system integration, testing, validation and including third party "wet' calibrations (only for the ultrasonic meters with its associated upstream / downstream meter runs) should be done in flow labs as detailed above


Document Number: 3-09-002 Stamped Page No. 273 & 274 PAINTING TABLE DELETED

LIST OF ATTACHMENTS S.No. Description Document No.

1. Replies to Bidders Queries N.A.

2. Data Sheet Ball Valve 11-0230-01-11-03-003 Rev B

3. Piping Material Specification 11-0230-01-08-02-001 Rev C

4. Data Sheet For Dry Gas Filter 11-0230-01-08-03-018 Rev A

5. Data Sheet For Slam Shut Valve 11-0230-01-11-02-005 Rev C (sheet 10 0f 15)

6. Data Sheet For Flow Control Valve 11-0230-01-08-03-016 Rev A

7. Data Sheet For Pressure Control Valve 11-0230-01-08-03-017 Rev A

8. Mandatory Spares 11-0230-01-11-02-005 Rev C (Appendix 8)

9. Creep Relief Valve 11-0230-01-08-03-018 Rev A

10. P & IDs 11-0230-D1-03-01-002 Rev 1 (sheet 3 of 3); 11-0230-S4-03-01-001 Rev 5 (sheet 1,2 of 5); 11-0230-S4-03-01-002 Rev 1 (sheet 3,4,5 of 5).

5

CHAINSA – JHAJJAR – BAMNOLI PIPELINE PROJECT TENDER FOR FILTERATION & METERING

TECHNICAL CORRIGENDUM – 1

Page 1 of 23

TECHNICAL DATE: 23.10.2008

Sr.No.

Section / Clause

No.

TenderDoc.

Page No. Clause Description Bidder’s Query Reply/Clarifications

1Scope of supply 1.2

Sheet 3 of 14, Page no. 7

Loose supply of three number (3) Flow computers, GC controller/Display Unit along with printer, Isolators, barriers and repeaters, power supply units etc required for the system.

We recommend the supply of Flow Computers along with accessories in a control panel and not loose. Please confirm.

Vendor to supply metering Panel along with Flow computer, Gas Chromatograph Controller/ display unit with all accessories mounted, completely wired and tested.

(Refer Corrigendum 1) Stamped page 2

2

Scope of supply JobSpecification for Filtration,Meteringand Let down.Point No. 3.39

Page no. 32, Sheet 8 of 11

Flow profiler shall be provided at the ultrasonic meter inlet to eliminate swirls and cross current setup by the pipe fittings, valves or regulators preceding the meter inlet piping where specified. Flow Profiler shall be according to AGA Report No. 8 & 9. Flow Profiler shall be a bundle of SS 316 tubes. Vendor shall Furnish complete details/design of straight length (upstream/ downstream) arrived at.

As per the detail provided in Sheet 6 of 12, Page 51 USM based Metering skid, you have asked for a flow profiler as in between flanges type. This is contradictory to the tender clause on Point No. 3.39, Page no. 32, Sheet 8 of 11. Please confirm the type of flow profiler required.

SS Tube Bundle is to be deleted. Flow Profiler design to meet tender specs to be supplied.

(Refer Corrigendum 1) Stamped page 3

3

Scope of supply JobSpecification for Filtration,Meteringand Let down.Point No. 3.41

Page no. 32, Sheet 8 of 11

Ultrasonic meters shall undergo wet test calibration to accuracy equal to or better than +0.3%. The meter Shall have rangeability of 1:40 for the accuracy mentioned over the entire range.

As per the detail provided in Sheet 5 of 13, Page 87, Ultrasonic Flow Meter, rangeability required in USM is 1:20. We understand that the rangeability required is 1:40. Please confirm

Accuracy shall be + 0.3% (including Lab uncertainty), Repeatability shall be + 0.1%,and Rangeability 1:40

4

Ultrasonic Flow Meter,Sheet 5 of 13

Page 87

The accuracy of the Ultrasonic flow meter shall be ±0.25% or better & repeatability shall be better than ±0.25% of reading and acc. vendor shall select the no. of

The accuracy requirement for Ultrasonic meter in all the GAIL tenders is 0.1% and inclusive of lab inaccuracy it is 0.3%. We understand the same is required in this tender also.

Refer S.No. 3

6



Page 2 of 23

paths to meet accuracy requirement and indicate the same in calculations/ back-up literature.

5


Page 87

The accuracy of the Ultrasonic flow meter shall be ±0.25% or better and repeatability shall be better than ±0.25% of reading & accordingly vendor shall select the no. of paths to meet accuracy requirement and indicate the same in calculations/back-up literature.

The repeatability requirement for this tender is 0.25% . For USM, the repeatability requirement should be more stringent than the accuracy requirement and we suggest the repeatability requirement should be as 0.1% minimum while as most of the reputed manufacturers repeatability is 0.05% of the reading.

Accuracy shall be + 0.3% (including Lab uncertainty). Repeatability shall be + 0.1%.

6


Page 87

The flow metering system shall consist of Multipath Transit time Ultrasonic flow meters.

We highly recommend the use of USM with minimum 4-path. The use of 2-path meter would jeopardise the reliability of the metering system which is cash register for GAIL. Ultimately it’s the decision of the customer about the minimum path requirement for USM. But one should keep in mind that the popularity of USM in GAIL is due to the fact that the installed USM meters performance at GAIL is exceeding expectations and all the USM in critical service are 4-path meters only.

Tender Condition prevails.

7datasheet of ControlValves

Sheet 1 of 2, Page 239

Details in the datasheet are missing

1. Please provide the detailed data sheet for flow control valve. 2. Please provide the working philosophy of the same.

1. Refer Corrigendum 1 Stamped page 35 to 36

2. Refer S.No. 19

8 P&ID's

Note 2. All the MOV's above 12"shall be manually operated and hydraulically actuated type

As per our previous experience, valves below 16" along with pressure balancing system can easily be operated manually. Hydraulic actuation is not necessary for valves below 16". It will unnecessary increase the cost. Kindly confirm the requirement of hydraulic actuator.

Refer Corrigendum 1 Stamped page 29 to 30

9 Datasheet of Filter

Filter datasheet is not in the tender. Kindly provide.


10 DatasheeKindly provide the velocity limit within the filter vessel.

velocity limit within the filter vessel is 2.5 m/sec

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Page 3 of 23

t of Filter As per normal industrial practice, velocity inside the filter vessel is limited to 2.5 m/s. Kindly confirm if the same is applicable for this tender.

11Sheet 5 of 10, Page 40

The Quick opening closure shall be equipped with locking device which can be opened only when the vessel is completely depressurized. Alternatively, swing bolts with pin arrangement shall be provided for the closure, if specified in the data sheet. The swing bolts shall be of one piece construction without welding. Hinge pins shall be forged and of the same material as the swing bolts.

Since both QOC and option of Swing bolt is given in the tender, we recommend to use QOC in place of swing bolt arrangement. Please confirm only QOC is acceptable as per vendor list.

Only QOEC shall be considered for Filter Vessel closure.

12 Filter

Please provide the DP for both clean and dirty condition.

DP Clean - 0.2 bar DP Dirty - 0.5 bar

13 P&ID for Filtrationskid

We understand that the inlet valve of 16" 600 class should be fitted with Gas Over Oil Actuator (GOOA). Please confirm if our understanding is correct and provide the specifications for GOOA.

Bidder’s Understanding is correct. However Valve size is revised to 12”.

14

specification of Filtrationskid


Typically, the filter is provided with level gauge & transmitter, Manometer & D P transmitter, vent valves (2 manual valves in series, one block valve and one throttling valve) and drain valves (2 manual valves in series, one block valve and one throttling valve).

We understand that Manometer and Level Transmitter is not required. Kindly confirm.

Bidder’s Understanding is correct

15Sheet 5 of 12. page 50

One pneumatically actuated/manual, inlet double block and bleed integrated isolation valve, (with open/close proximity switches & solenoid valve for remote

Please confirm if we have to provide pneumatically actuated or manual Double Block and Bleed Valve.

Refer Metering P&ID of Chainsa and Bamnoulli. Stamped page 42 & 46

8



Page 4 of 23

operation). This valve shall be equipped with a by-pass for line pressurization. This by-pass shall be composed of one isolation valve and onemanually operated globe or plug valve.

16

Scope of supply 1.2Description of equipment and or services Location:Dispatchstation at Chainsa


Special Cable (such as RS 485 or any special cable) between GC Field Unit/GC controller and Display Unit in control room to be supplied by metering Vendor.

There is no special cable required for our system. However, kindly confirm the scope of supply for the special cable.

All Cables to be provided by metering Vendor, including field to Control Room Cables.

17

Scope of supply 1.2Description of equipment and or services Location:Dispatchstation at Chainsa


Supply of all cables, trays, junction boxes, impulse tubing, valves, manifolds within the skid, and all cables from field instruments/ meters/ Gas Chromatograph to control room

Please confirm if all the cables between field and control room are in our scope of supply

Yes. All Cables shall be provided by metering Vendor, including field to Control Room.

18Ultrasonic Flow Meter


Meter electronics shall be capable of multiple output signals as follows: a) Frequency pulse output to flow computers configurable for flow rate signals. b) One configurable 4-20 mA analogue output internally powered and galvanically isolated. c) Digital discrete outputs for direction of flow, trouble alarm and output data validation.d) RS-485/422 communication port with MODBUS protocol for

As USM already has a pulse O/P and Modbus O/P denoting the flow, there is no requirement for 4-20 mA analog O/P. The same is also not mentioned in your data sheet. Kindly confirm your acceptance.

Vendor to furnish:

1. One RS 485/RS 422 Modbus RTU output.

2. Frequency Pulse output

3. Digital output to show various alarms as mentioned.

9



Page 5 of 23

communicating with the other control system i.e. control room mounted flow computer for meter diagnostics, test and health data.

19

FlowComputer


PID control shall be implemented in flow computer. Also independent microprocessorbased PID controller shall be supplied. User will select implementation of PID control in flow computer or independent controller.

The P&ID control can be incorporated in the flow computer and no separate P&ID controller is required for the same. Kindly confirm.

Yes, Independent PID Controller is required; however the same shall be implemented in Flow Computer also.

Normally FCV will be acting as a Active Regulator and will be controlled by Pressure. In the event of flow exceeding preset value the flow controller will override Pressure controller

20Point no. 3.2.3


Ultrasonic Gas Check/Custody Transfer Metering System shall be built and integrated only by the original equipment manufacturer of the Ultrasonic Flow Meter, since critical components within the custody transfer metering system should be compatible to ensure “Overall System Uncertainty” for this critical fiscal transaction purpose. All components within the metering system must be well proven and compatible in the similar application.

We understand that the authorised agents who quote on behalf of their principals and are using PTR of the principals, they should build, integrate, test (FAT) the system at the principals place to ensure the integrity and reliability of the system.


21 Point no. 6.9


The vendor shall supply two each pre-filled calibration gas cylinders (one for rich and other for semi rich gas) with regulator mechanism. A recognized laboratory must certify the calibration gas. The calibration gas specification must be approved by the purchaser prior to purchase. The calibration gas shall

The consumption for calibration gas for GC is very less hence we request you to accept one number of 0.5 m3 capacity cylinders in place of 2.13 m3 calibration gas cylinders. Kindly confirm your acceptance.

Tender Conditions prevails

10



Page 6 of 23

have a minimum certification accuracy of ±0.2% for components (mole%) greater than 10 % and ±0.5 % for components (mole%) between 1 % to 10% and ±1.0% for components (mole%) below 1%. The calibration shall be traceable to NPL or equivalent (the traceability certificate to be submitted) with 03 years stability. Mixer category shall be “PRIMARY”. Gas volume per cylinder is approx. 2.13 m3.

22 datasheet for USM


Material of Construction

We understand that the requirement is of low temperature cast steel material. Since the Casting material is having a better physical property with reference to pipe material.


23

datasheet for Pressure Transmitter


Accuracy 0.04% of Span

We understand that the accuracy of 0.04% is only required for metering system and all other PT's will be acceptable for 0.075% accuracy. Please confirm

The accuracy of PT installed with USM meter for Custody metering purpose shall be with +0.04% accuracy. All other PT’s will be acceptable with + 0.075% accuracy.

24

datasheet for Pressure ReliefValve

7 of 15, Page no. 227

Body and bonnet material mentioned as A 351CF8M

We understand that A352 LCB/LCC material should be acceptable in place of A 351CF 8M. Kindly confirm.


25

datasheet for Creep Reliefvalve

Datasheet of Creep Relief valve is not available

Please arrange for the same. Refer Corrigendum 1 Stamped page 40 & 41

26

datasheet for SSV andRegulato

Datasheet of SSV and Regulator are incomplete

Please provide the MOC for both.

Refer Corrigendum 1 Stamped page 34

11



Page 7 of 23

r

27 Mandatory Spares

Sheet 1of 1, Page no. 241

Pilot for FCV has been mentioned, but there is no pilot for FCV. We request you to delete the same.

Refer Corrigendum I Stamped page 39

28

Datasheet for Ball Valves & GlobeValves

Page no. 249 and 251

Datasheet for valves

We understand that valve upto 4" size will be provided with wrench operated type, from 6" to 14" Gear operated type and 16" & above HOV or XOV type. Kindly confirm if our understanding is correct.

Refer Corrigendum I Stamped page 29 to 30

29P&ID for Meteringskid

For Z configuration

We request you to kindly add Limit switches in the valves for Z configuration enabling the user to see the position in the control room.

Yes Vendor to provide limit Switches(open/close) for Z configuration Valves and wire them to panel for indication

30 SOR Mandays

As per the SOR, we have to provided a lump sum value for supervision of erection, commissioning activity. As the erection is not in Bidders scope, we suggest to make these charges on Mandays basis in place of Lumpsum.

Evaluation shall be made on 20 days.Per diem rate shall be quoted for 20 days, payment shall be made on actual number of days spent.

31

Section 1 of IFB, Clause 3.1

Page 6 of 7

3.1 Bid Evaluation Criteria

1. Requesting GAIL/JP Kenny to amend this clause as “at least one number of supply reference instead of two numbers to establish the PTR.

2. End users will not issue performance letter, hence requesting GAIL/JP Kenny to accept installation/ commissioning report date to establish six months operation of the meter/skid.


32

Section I of IFB, Clause 3.3

Page 7 of 7

Documents required: Satisfactory work performance cert. for at least 6 months from the end user for item no. 1 & 2

End User of the Ultrasonic meter/skids does not issue the performance letter as the vendor may use it for their marketing purposes. In this situation, we request GAIL / JP Kenny to waive this condition. Installation report or supply details/PO Copies will be produced to establish the supply/PTR. Kindly accept the same.

Tender conditions prevails

33 General Querry

Whether Indian Bidder can quote in Indian rupees based on Global PTR available for Ultrasonic Meters and skids

Indian Bidder can quote in INR.

34 E Tender No.

Two E-Tender Numbers appearing

Please confirm which one is Correct E-Tender No.

Refer Corregendum I Stamped page 2

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Page 8 of 23

in the bid document 1. Tender Doc. 8000000644

2. IFB mentioned: 8000000630

35 S No 172 to 175

MR for USM and MeteringSkid Page 13 of 14

List of recommended vendors for Gas Chromatograph given in tender are 4 Nos only namely DANIEL, RMG, Instromet and ABB.

Out of this list, 3 vendors namely Daniel, Instromet and RMG are our direct competitors for US meter/Metering skid and do not quote to us. Hence we are left with only 1 vendor namely ABB to source/ get offer for GC. We strongly request you to include SIEMENS name in the GC list. Siemens GC model SITRANS is approved by PTB for natural gas online GC for custody transfer applications. We are attaching PTB certificate and reference list of supplies in support of same


36 3.1.5

Page 5 of 13

and

Page 1 of 15

Specification for Ultrasonic Flow Meter, and Data Sheet of US Meter,

Meter body shall be made of carbon steel as per data sheets. As per USM data sheets body material of US Meter required is low temperature carbon steel.

We strongly feel low temperature cerbon steel is not required for GAIL's process/ambient conditions. In very recent tender GAIL thru EIL has gone in for ASTM A 216 Gr WCB as the body material. We request you to accept the same. Attached is the extract of the tender specification indicating body material as ASTM A 216 Gr WCB. The same is suitable for Natural gas applications and for GAIL's filed requirements.


37

3.1.1 of USMspecifica-tion

Page 5 of 13

Specification for Ultrasonic Flow Meter,

The accuracy of the US flow Meter shall be +/-0.25% and accordingly the vendor shall select the no. of paths to meet the accuracy requirement and indicate the same in calculations/back up literature

Please clarify that the accuracy requirement of +/- 0.25% is the overall accuracy including the lab uncertainty or is it the uncertainty of the US Meter alone. Please note that from past field experience, to achieve an overall uncertainty of 0.25% or better, the UFM should have minimum 4 paths (4 sets of transducers). If a meter has a total uncertainty of 0.25% in lab calibration, this will translate to a total uncertainty of greater than 0.3% under operating in situ field conditions. This statement is in line with AGA 9 latest clause 9.1, S No 2 on

Accuracy shall be + 0.3% (including Lab uncertainty). Repeatability shall be + 0.1%. Other specifications as per Tender requirement.

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Page 9 of 23

page 32 and clause 9.3. Moreover as per tender the loss of one path should not degrade the accuracy of measurement of the US Meter by more than +/0.1%. This is practically achievable only when the number of paths is 3 or more so that during loss of one path , you have minimum 2 working paths all the time. In view of all the above we request you to reconsider the minimum paths required for highly accurate custody transfer /reconciliation US Meter for a long accurate performance.

38 Note No 7

Page 1 of 15

Data Sheet of US Meter, Doc No 11-0230-01-11-02-005

Number of paths to be decided by manufacturer to meet overall specified accuracy requirements as per AGA 9 guidelines.

As per latest AGA 9 guidelines (April 2007) the accuracy requirements for large meters (>12") is +/-0.7% and for small meters (<12", it is +/- 1%). (Clause No 5.1.1 and 5.1.2, page 17 & 18 of AGA)Please clarify which accuracy requirements are to be followed while deciding number of paths of the US Meter to be offered.

Accuracy shall be + 0.3% (including Lab uncertainty)

39 3.1.5 Page 5 of 13

Specification for Ultrasonic Flow Meter, (Doc No.11-0230-01-11-02-14)

All flanges shall be weld neck, raised face and shall meet ANSI B 16.5

There are cases in which the full meter body including the flanges is a single casting. In such cases, it is not possible to offer weld neck flanges. Kindly confirm your acceptance.

If the meter and flange are casted as a single piece, requirement of Weld neck Flanges may be deferred.

40 3.2.1 Page 6 of 12

Specification for USM based Metering Skid, (Doc No.11-0230-01-11-02-09)

Ultrasonic meters with a minimum length of 10D upstream + profiler + 10 upstream + meter + 5D downstream meter run shall be supplied.

Please note that SICK Maihak Gas Ultrasonic Meter is approved for custody transfer of Natural Gas with 5D upstream meter run, PTB approved profiler plate and 3D downstream meter run. This configuration has been approved by PIGSAR, PTB which is reputed lab approved by German Weights and Measures. Attached is the relevant page of the type approval certificate to this effect Pls refer configuration No 2 given on 3rd page in the attached file. We request you to accept the same for best performance results as


14



Page 10 of 23

individual case of SICK Maihak Meters.

41 4.1.1 Page 4 of 4

Section III B, SCC-Goods, Delivery Schedule

The FOT site schedule is 7 months

Since scope involves wet calibration of big size meters and supply of GC, we request you to review the delivery period and make it 8 months FOT site. Pls confirm


42 Clause 1.2

MR for USM & MeteringSkid Page 3 of 14

Loose supply of three number (3) Flow computers, GC controller / Display Unit along with printer, Isolators, barriers & repeaters, power supply units etc required for the system.

Refer S.No. 1

43 Clause 3.2 (ii)

Job Spec forfiltration,metering& let downPage 5 of 11

Two self actuated pressure control valve(s) with integral slam shut as indicated in respective P & ID’s.

Self actuated Pressure control Valve(monitor), FCV and SSV separately as indicated in respective P & ID’s.

44 Clause 3.3


The skid shall be complete in all respects, ready for installation and commissioning at the respective site. There shall be minimum work to be done at site. All field mounted instruments shall be supplied loose to avoid damages of same during transportation of the skid . However, PCVs with integral slam shut, ultrasonic flow meter, flow straightner, control valve shall be duly mounted on the skid. The flow computer shall be fully configured and all the necessary data as per data sheet should be recorded in FC to minimize site work. The details regarding

Refer Corrigendum 1 Stamped page No. 3

15



Page 11 of 23

installation of metering skid, shall be clearly described in the “Installation Manual” especially made for metering skid installation and the same shall be submitted while dispatching skids to various sites.

45 Clause 3.39


Flow profiler shall be provided at the ultrasonic meter inlet to eliminate swirls and cross current setup by the pipe fittings, valves or regulators preceding the meter inlet piping where specified. Flow Profiler shall be according to AGA Report No. 8 & 9. Flow Profiler shall be a bundle of SS 316 tubes. Vendor shall furnish complete details/design of straight length (upstream/downstream) arrived at.

Flow profiler shall be provided at the ultrasonic meter inlet to eliminate swirls and cross current setup by the pipe fittings, valves or regulators preceding the meter inlet piping where specified. Flow Profiler shall be according to AGA Report No. 8 & 9. Flow Profiler of suitable design to meet tender specifications. Vendor shall furnish complete details/design of straight length (upstream/downstream) arrived at.

46 Clause 3.1.1

Ultrasonic flow meterPage 5 of 13

The turndown ratio of each flow meter shall be minimum 1:20. The accuracy of the Ultrasonic flow meter shall be ±0.25% or better and repeatability shall be better than ±0.25% of reading and accordingly vendor shall select the no. of paths to meet accuracy requirement and indicate the same in calculations/back-up literature.

The turndown ratio of each flow meter shall be minimum 1:40.The accuracy of the Ultrasonic flow meter shall be ±0.3%(including Lab uncertainty)or better and repeatability shall be better than ±0.1% of reading and accordingly vendor shall select the no. of paths to meet accuracy requirement and indicate the same in calculations/back-up literature.

47 Clause 6.4.2

Ultrasonic flow meterPage 12 of 13

The Ultrasonic meter shall be ‘flow calibrated’ with NG and shall have calibration certificate duly signed by

The Ultrasonic meter shall be ‘flow calibrated’ with NG and shall have calibration certificate duly signed by weights & measures authority such as NMI, PTB or other reputed

16



Page 12 of 23

weights & measures authority such as NMI, PTB or other reputed National Std laboratory of its country of origin such as Trans Canada Calibrations, (TCC) Canada ,Colorado Engg Experiment Station Inc.(CEESI) USA ,South West Research Inc. (SWRI) USA. Accuracy with wet flow calibration shall be demonstratd within ±0.25% for multi path type under flow conditions in the turndown ratio of 1:10. The meter proving system to be used by vendor shall be traceable to international stds and uncertainty of meter proving system shall be furnished. Gas metering system integration, testing, validation & including third party "wet' calibrations (only for the ultrasonic meters with its associated upstream / downstream meter runs) should be done in flow labs as detailed above

National Std laboratory of its country of origin such as Trans Canada Calibrations, (TCC) Canada ,Colorado Engg Experiment Station Inc.(CEESI) USA ,South West Research Inc. (SWRI) USA. Accuracy with wet flow calibration shall be demonstratd within ±0.3% (including Lab uncertainty) for multi path type under flow conditions in the turndown ratio of 1:40. The meter proving system to be used by vendor shall be traceable to international stds and uncertainty of meter proving system shall be furnished. Gas metering system integration, testing, validation & including third party "wet' calibrations (only for the ultrasonic meters with its associated upstream / downstream meter runs) should be done in flow labs as detailed above

48

MR for USM & MeteringSkid, 1 7 1.2 Item no. 1, Bullet no. 4

Description of Equipment & Services,

Loose supply of three number (3) Flow computers, GC controller/Display Unit along with printer, Isolators, barriers and repeaters, power supply units etc required for the system.

Kindly confirm if all this material is to be supplied loose as per Technical Volume Page 7 - MR for USM & Metering Skids ORA complete Metering Control Panel housing all this equipments as per the SOR item no. 1.0 is to be supplied.

Refer S.No. 1

49

PRICE SCHEDULE FOR USM & 2 - METERING SKID - Item no. 1.0

16” ANSI# 600 Ultrasonic Flow Meter (multipath), Meter runs, Field instruments, Flow

Refer S.No. 1

17



Page 13 of 23

computers and Metering control panel

50

MR for USM & MeteringSkid, 3 7 1.2 Item no. 1, Bullet no. 8

Description of Equipment & Services,

Serial Interface Cable (such as RS 485/ RS 232 cable) from Flow Computer and GC Display unit to RTU to be supplied by metering Vendor.

Please provide the distance between FC/ GC Display unit and the RTU.

The distance between FC/GC Display unit and the RTU will be 30 mts

51

MR for USM & MeteringSkid, 4 8 1.2

Description of Equipment & Services, Item no. 1, First Para

Supervision of erection and hydro test and commissioning by Vendor for 20 days. Vendor to quote per diem rates, inclusive of all expenses like travel, boarding, lodging etc.

Please confirm that Supervision of Hyrdotest is not in bidders scope of supply as this activity is not envisaged during the installation of the US Meter runs.


52

Preamble to Price Schedule for USM & 5 - MeteringSkid Pt. 11

Bidder shall furnish charges for supervision of Erection / Testing / Commissioning in the format Terms and Conditions For Supervision of Erection, testing, & Commissioning as Annexure - 1 to SOR” per diem rate for 4 days of supervision per item of SOR (Item 1 = 3 sets and Item 2 = 1 No) shall be considered in evaluation.

As per MR for USM & Metering Skid, 1.2 Description of Equipment & Services, Item no. 1, Para-1; 20 days of per diem rates for supervision of erection and commissioning is to be quoted,whilst as per the SOR 4- days would be consider. Please confirm the no. of days that will be considered for Price Evaluation

Refer S.No. 30


53

List of Recommended Vendors

Flow Computers Vendor

Please provide list of recommended vendors for Flow Computers.

Daniel, Bristol Babcock, RMG, OMNI and Instromet

54

GasComposition

Sources of Gas Supplied and their composition are given below. Particular source may be selected depending upon

Please confirm two particular sources, so that the calibration Gas cylinders could be considered accordingly.Or please confirm that we have to supply 4 nos. of

Sources of Gas supply shall be RLNG at Dahej and Lean Gas at Vijaipur.

18



Page 14 of 23

requirement. Calibration Gas Cylinders

55

Clause 3.2.1Bullet no. 3

The ultrasonic flow meter with a minimum length of (10 D upstream + profiler + 10 upstream + meter + 5 D downstream straight lengths) shall be supplied by Vendor. This pipe shall fulfill the codes and manufacturer std requirements for such a measuring tube.

As per our understanding, in reference to AGA 9 Pt. no. 7.2, For the Wet Calibrated US Meter; the upstream Pipespool may be 1OD after Flow Straightner and 5D downstream Pipe spool. And only in the event the wet calibration is not performed, then the additional 1OD before flow profiler is required. Kindly confirm if it is acceptable to supply the meter run with Flow Profile+1OD Upstream Spool + Meter+5D Downstream spool, entire Metering assembly calibrated at an independent flow calibration facility.ORWe request GAIL! JPK kindly also consider! accept that in the event a Ultrasonic Meter Manufacturer having a Valid Type Test Approval from an Internationally Accredited Weights and Measures Body like NMI!PTB!etc. which confirms that the USM has an uncertainty of < +0.3% than maybe USM Meter run with 1OD±Flow Straightner+1OD+Meter +5D could be supplied without Wet Calibration. (The Type Test Approval Certificate alongwith the Test Reports could be presented to GAIL /JPK)

Wet Calibration has to be carried out at six points.

Flow profiler + 10D downstream + US Meter + 5D are required for Calibration at accredited lab.

56

Clause 3.2.2Para 1

In order to provide proper alignment throughout the metering lines, three knock-out dowel pin holes with different diameters shall be drilled in the ultrasonic flow meter flanges and in the corresponding upstream and downstream meter tube flanges. The internal diameter of

The Manufacturing process of USM is an OEM standard. It is understood that this requirement is not mandatory as we feel that the process of the USM design/ manufacturing should be left on the OEM. Please confirm our understanding.

Bidder’s Understanding Correct

19



Page 15 of 23

the meter tubes shall be identical to the internal diameter of the ultrasonic flow meters.

57

Clause 3.2.2Para 3

The circularity of the meter tubes shall comply with ISO requirements.

Please provide the standard no. of ISO being referred.

Circularity of the meter tubes shall comply with API 14.3

58Clause 3.2.3

Ultrasonic Gas Check! Custody Transfer Metering System shall be built and integrated only by the original equipment manufacturer of the Ultrasonic Flow Meter, since critical components within the custody transfer metering system should be compatible to ensure “Overall System Uncertainty” for this critical fiscal transaction purpose. All components within the metering system must be well proven and compatible in the similar application

Ultrasonic Gas Check! Custody Transfer Metering System shall be built and integrated only by the original equipment manufacturer of the Ultrasonic Flow Meter, since critical components within the custody transfer metering system should be compatible to ensure “Overall System Uncertainty” for this critical fiscal transaction purpose. All components within the metering system must be well proven and compatible in the similar application


59

Clause 3.2.8

Each metering line shall be thermally insulated, including the ultrasonic flow meter, and the transmitters shall be installed in a protective enclosure in order to minimize the environmental temperature effects on the overall accuracy of the metering system.

1. It is understood that only the U!S & DIS Pipe spools with the USM is to be insulated and not the entire Metering Line. - Kindly confirm our understanding. 2. Kindly provide detail specifications for the Protective Enclosures for the Transmitters along with the MOC, also confirm if the same has to be with a thermostat controlled heater (Eexd) such that the temperature within the enclosure would be uniform disregard of the changes in the ambient conditions.

1. Bidders understanding is correct

2. Thermostat controlled heater is not required.

3. Protective Enclosures for Transmitters shall be weather proof to IP-65.

60Clause 3.2.9

The ultrasonic flow meters shall be calibrated in an accredited laboratory.

1. It is understood that, that in the event it is not possible

1. Refer S.No. 55

20



Page 16 of 23

If possible, complete lines shall be checked. If not, the ultrasonic flow meter shall be calibrated with its upstream length. The calibration shall be done on 5 points for each flow meter. Wet calibration of the complete metering run (including 1OD straight run before profiler, flow-profiler, 1OD meter run after profiler, US meter and SD straight run after meter) shall be performed as per AGA9 latest recommendations.

to calibrate the entire assembly of 1OD + FS + 1OD + SUM + 5D than in that case, the calibration should be performed with 1 OD+USM. - Please confirm our understanding.

2. It may be noted that it might not be possible to get the entire assembly calibrated as for the 16 Meter the approximate length of the entire assembly would be 11225 mm, in that case we would request GAIL / JPK to allows us the calibration of the Meter with Flow Straightner, 1 U/s 1OD spool, USM and the SD Downstream Spool.

2. Tender conditions prevail.

61

Clause 3.4 Para 7

Metering supervisory system is to be provided at Bamnouli andSV 4.

It is understood that Bamnouli and SV-4 are one and the same station and only One Metering supervisory is envisaged for the item no. 2 of SOR.

One Metering supervisory system is envisaged. Bidder’s Understanding is Correct.

62Clause 9.3.2

Leak test : After final assembly on skid, all lines shall be pneumatic tested for detection of leaks by the method of soap bubbles

Kindly confirm the pressure at which the pneumatic test is to be conducted. Also confirm if the pneumatic test isto be conducted for the 3 nos. of 16 USM Metering System also.

Pneumatic Test Pressure shall be 7 bar

63

Clause 4.0

The gas pressure letdown skid shall include the necessary equipment to perform safely the operation for which it is designed. It shall be equipped with, but not limited to (see also the relevant P&ID):*One process connection at inlet (600 # acc piping class) *One process connection at outlet (600 # acc piping class)

Please confirm the actual requirement for the Process Connections at the PRS skid outlet.


21



Page 17 of 23

64

P&lDiagram SV-4 for DispatchStation at Bamnouli

(sheet 2 of 5)

One Process Connection of 16 Line size at outlet is indicated on the D/S of PRS.


65

P&lDiagram SV-4 for Letdown Skid at Bamnouli, TOP, SV-4

(sheet 5 of 5)

Two Separate Process connections of 12 & 16 with common outlet header of 16 is indicated.


66

Clause 4.0 Last bulletand first Para

One manual actuated inlet double block and bleed integrated isolation valve. This valve shall be equipped with a by-pass for line pressurization this by-pass shall be composed of one 2” isolation valve and one manually operated control valve.

Please confirm that For the By-pass for line pressurization a Globe/plug valve is envisage for throttling purpose and not a manually operated control valve.

Bidder’s understanding is Correct

67

Clause 4.0contd.* One slamshut-offvalve,with the followingcharacteristics: LastBullet

* the setting range shall be:* for the maximum set point, 90 to 150% of the maximum outlet pressure;* for the minimum set point, 10 to 40% of the maximum outlet pressure.

Based on the Setting range indicated for minimum and maximum se-point, It is understood that under pressure cut-off (UPCO) for the SSV is envisaged for this application. AS per standard practice UPCO is not provided for high pressure installations and only OPCO (Over Pressure Cut-off) is provide. Please confirm I clarify the requirement.

Both UPCO & OPCO shall be provided.

68

1.0ScopePt. no. 4

24 VDC - Shall be provided at one end for the control panel by client I others.

1. Please confirm that 24 VDC source shall be made available by client! others. 2. Also confirm is any source for 230 VAC UPS supply shall also be available. 3. Also confirm the power source availability for the Chainsa Meter run Panel (if a panelis to be supplied).

24 V DC will be supplied to Vendor. Vendor to convert to other level of Voltages required.

22



Page 18 of 23

69

PackageUnitInstrumentationClause 13 Spec. for Panel, sub-clause 13.8

Vendor to provide meter supervisory system with desk top computer + HMI software with all cableslfurniture and complete with configuration of all parametersldisplays as per P&lDs, details furnished during detail engineering,

70

USMBasedMeteringSkid Clause 3.4MeteringSupervisorySystem

The operating system of the Metering Supervisory System shall be window based. The computer system for the supervisory control system shall be industrial type IBM compatible, suitable for continuous operation in the non-air-condition environment. It will be mounted in the control panel

Kindly confirm if the Supervisory System has to be a standard Desktop type (as per Instrumentation Package - Control Panel) or that the same has to be industrial type which will be installed in the Control Panel (as per Metering Skid specifications for the Metering Supervisory).

Also confirm the type of display required for the same (is the Monitor required to be of Industrial grade or a standard TFT - LCD Monitor is acceptable)

Everything monitor(TFT/LCD), keyboard, and printer shall be panel mounted. Monitor shall be of Industrial grade.

71

Clause 16.0FlowComputerLast Para

Printers for GC and EC shall be desktop type and shall be supplied along with required furniture by contractor.

In the tender document at several places it is indicated the Printer for the GC & FC shall be mounted in the Control Panel, whilst here it is mentioned otherwise, please confirm the exact requirement. Further it may be noted that the Dot-Matrix Report Printer could be installed in the Control Panel and the LaserJet Report Printer (for GC Reports and Daily reports from the HMI) should be installed on a separate furniture outside for ease of day to day operations.

Printer for the GC & FC shall be mounted in the Control Panel.

72

FlowMeter6.3.3Instrumentation &

Leak test using a known reference gas at the maximum rated pressure of the

Please re-confirm that leak test at Max. Rated Pressure i.e. 98-99 barg is to be conducted during the FAT for

Leak Test Pressure is 7 bar.

23



Page 19 of 23

ControlTests Bullet - 4

meter. the US meters.

73

Ultrasonic Flow Meter6.3.3Instrumentation & ControlTests LastBullet

Transducer replacement test to demonstrate the ability of the transducer extraction/replacement tool under operating pressure conditions. A zero flow verification test shall be repeated to verify the accuracy and performance of the meter after replacement of one or more transducer pairs.

It is understood that a type test report for the same has to be submitted and not the actual testing as described under this clause is envisaged. Please confirm our understanding.

Bidder’s understanding is Correct.

74

TechSpecs for FlowComputerClause 9 TicketPrinter

Ticket printer to be included by vendor within each flow computer unit for printing the reports

Kindly confirm acceptance of one common printer with an automatic changeover switch for the flow computers. It maybe noted that in the event this Printers have to be mounted in the Control Panel than installing 2 or 3 ticket printers within the same control Panel might increase the size of the Panel too.

At Chainsa, Single Printer is acceptable.

At Bamnoulli, the printer of Meter Supervisory System shall be used to indicate flow values.

75

TechSpecs for FlowComputerClause 10 Misc, Pt. b)

PID control shall be implemented in flow computer. Also independent microprocessorbased PID controller shall be supplied. User will select implementation of PID control in flow computer or independent controller.

Please re-confirm that the PID Control is required in the Flow Computer as well as Separate PID controllers for each FCV is to be supplied.

Independent PID Controller is required, the same shall be integrated with Metering supervisory system.

76

Chromatograph - NGMeteringStationClause 5.1; Pt. (vi)

Cycle time: Operator assignable (5 minutes max).

We would request you to kindly confirm the same as GAIL for applications smaller than this tender requirement is also asked for cycle time of less than 4 minutes whilst here it is mentioned as 5 minutes max.

Tender Conditions prevails.

24



Page 20 of 23

77

Chromatograph - NGMeteringStationClause 10

Vendor to include 1W full bore ball valve with flanged ends for probe connections at the tapping point. Probe retractor for removing the probe at the line-pressurized condition shall be included in scope of supply by vendor.

Please confirm if the sample probe retraction tool has to be included in the scope of supply for the metering skid as well as the USM Meter runs for Chainsa

Further also confirm that the Ball Valve for the Chainsa Meter Runs has to be supplied loose.

Probe extractor is not required.

Bidder’s understanding is correct

78

Appendix-8;Mandatory Spares

For item no-i : MS 100: Ultrasonic Flow Metera) Transducer for 16 size USM - USM - 1 NO. (Qty) For item no.-2: MS 220: Ultrasonic Flow Meter a) Transducer for USM - 1 NO. (Qty)

It is understood that 1 Pair of Transducers is to be considered in the scope of supply, please confirm our understanding.


79

Datasheet for Ball Valve

Valve Operation : 4-12 - Gear Operated 12 & Above - HOV or XOV_(as_per_MR)

Please confirm the actual valve operation requirement for 12” Valves.


80

P&lDiagram SV-4 for FiltrationSkid at Bamnouli, TOP, SV-4

(sheet 3 of 5)

Inlet & Outlet Header Size - 16” with Two Filtration lines of 12”

Please note that as both the Filtration lines are of 100% capacity and no future expansion is envisaged, it is not required to have a header of larger size, GAl L/JPK may please review the same as the GOOA Ball Valve of 16 would lead to a long delivery time and also incur extra costs. We request GAIL/JPK to kindly accept the inlet header of 12 with a reducers of 16 x 12 at the inlet of the Filtration Skid.


81

P&lDiagram SV-4 for MeteringSkid at Bamnouli, TOP, SV-4

(sheet 4 of 5)

Inlet & Outlet Header Size - 12” with Two Metering lines of 10”

Please note that as both the Metering lines are of 100% capacity and no future expansion is envisaged, it is not required to have a header of larger size. We request GAIL/JPK to kindly accept the inlet header of 10 with reducers of at the inlet & Outlet of the Metering Skid.


25



Page 21 of 23

82

P&lDiagram SV-4 for Letdown Skid at Bamnouli, TOP, SV-4

(sheet 5 of 5)

Inlet & Outlet Header Size - 16 , no line size is indicated,

1. Kindly confirm the velocity limits for sizing the piping for the PRS. 2. Further also confirm the requirement of 16 Inlet Header whilst the metering skid outlet header is of 12. 3. Two separate outlet for both the Letdown runs is indicated with different size of 12 & 16, please confirm that Two separate outlets are required.

1. Velocity in pipe shall be 20 m/sec and at the seat of PCV/SSV, the velocity shall be 40 m/sec maximum



83

P&lD SV-4 for FiltrationSkid at Bamnouli, TOP, SV-4

(sheet 3 of 5) Notes on the P&ID

84

P&lD SV-4 for MeteringSkid at Bamnouli, TOP, SV-4

(sheet 4 of 5)

85

P&lD SV-4 for Letdown Skid at Bamnouli, TOP, SV-4

(sheet 5 of 5)

It is understood that though, separate inlet and outlet headers have been indicated for each individual skids, we can design all this the three skids as one package without reducing the sizes, if not confirmed in the above clarifications. - Please confirm.


86

1.2.3Delivery Schedule from Fax of Acceptance & months from the date of acceptance

This Delivery period is acceptable for Item No. 1 For Item no. 2 we request a delivery time of atleast 9 months.- It may please be noted that the delivery periods for the GOOA Actuators itself is nearly 30-32 week.

Tender Condition prevails

87

One hard copy of unpriced bid uploaded at GAIL website should also be submitted

It is understood that one Hard copy of the Unpriced Bid as submitted on the GAIL ETender Website has to be submitted.


88BEC - Documents

Satisfactory work performance Certificate for at least

End user certificate as asked for satisfactory working is commonly not provided by

Tender Condition prevails

26



Page 22 of 23

Required 6 months from the end user for Item no. 1 & 2

end user. Request you to please accept either the Commissioining Report I Inspection Release Note alongwith the other supporting documentation.

89 Inspection Scope

page 33, 39, 42

1) On Page 33 CL 5.4 indicates 3.2 certification.

2) Page 39 CL3.6 indicates filter bought-outs with 3.1B Certn which is 3.1.

3) Page 42 CL10.3 indiactes inspection at sub-vendors' place which is contradictory to 3.1.

Please confirm, What is actually applicable.

All pressure parts shall be supplied with 3.2 Certification

90 Hydrotest Pressure

page 44, 56, 65, 160

Please confirm, what is correct Hydrotest Pressure requirement.

1) On Page 44, CL10.13 the requierment is 1.5XDP

2) On Page 56 & Page 93, CL 9.3.1 the requirment is 1.5XMWP

3) On Page 65, CL 11.1 the requirement is1.5XDP

4) On Page 160, CL 6.15 the requirement is 1.4XMOP for valves

Hydrotest Pressure = 1.5 X Design Pressure

91

Impact Temperaturerequirement

page158, 162, 172, 174 etc

Please confirm the correct Impact temperature requirement.

1) On Page 158 CL5.6- Impact at 0 deg C

2) On Page 162 CL 7.1 Impact at -20 deg C

3) On Page 172 CL 4.4 Impact at 0 deg C

4) On Page 174 CL 7.5 Impact at -20 deg C

5) On Page 201 CL 4.3

Impact Test for LTCS material shall be carried out at -20 deg C

27



Page 23 of 23

Impact at 0 Deg C

6) On Page 255 QAP for Valve indicates Impact at -20 degC

7) Last para of Page 201 CL 4.3 also indicates that LTCS Impact requirements shall be as per the material std i.e A333GR6.

92

Requirement of %C and %CE

page157, 191, 201

Please confirm, Which is the correct requirement of %C and %CE?

1) On Page 157 5.3--CE should not exceed 0.45

2) On Page 191 7.9--CE should not exceed 0.43 and %C not to exceed 0.23

3) On Page 201 4.2--%C max.0.22

Carbon Equivalent should not exceed 0.45

Carbon % shall be 0.22 maximum.

93Paintingrequirement

page 34 & 273

Applicability of Painting System-Page 34 CL8 or Page 273 System 20

For Painting refer Page 34 Clause 8

94PipingSpecification

page 289

On Page289 6A1 Spec indicates SAW Pipes for size 16"-24" to SA333GR6 required. Can A672C70CL11 Ppie be a substitute for this because to get Welded Pipe in A333GR6 spec is nearly an impossible proposition? Please confirm your acceptability.


28

CLIENT GAIL India LimitedQUANTITY

Process Fluid NG/ R-LNG ANSI Rating 150# 300#

Operating Temp. (ºC) 45(A/G) & 28(U/G) Design Pressure 18.75 49

Design Standard API 6D Piping Class 1A1 3A1

Size, mm (inch) Upto 4" (U/G) Above 4" ( U/G)

Body Type Fully Welded & Floating type

Fully welded &Trunion with DBB

Connection Type FLG / B.W. Standard

Pup piece length1.5 X ND or 300mm (min.)

or 800 mm (max.)Pup Piece MOC

Special Requirement

Corrosion Allowance 1.5 mm Design Factor

Installation Underground/ Aboveground Stem Ext Length, mm

Insulation No (If underground)

Diameter, mm (inch) *

Wall Thck, mm/Sch *

Out of roundness *

Size, mm (inch) Upto 4" 4" - 12"

Type of Actuator Wrench Operated Gear Operated

PART DISCRIPTION

Body

Ball

Seat Rings

Seat Seal

Stem

Stem Seal

Stud Bolts

Nuts

Body: 1.5 X Design Pr.

Rev.B

A 350 Gr. LF2/ A 352 Gr. LCB A350 Gr. LF2 + 75 micrometer (0.003") ENP/

A351 Gr. CF8MA 350 Gr. LF2 + 0.075 mm ENP

A320 Gr. L7M

VITON AED O-RING

AISI 4140 + 75 micrometer (0.003") ENP/ AISI 410

PTFE/ VITON

DATA SHEET FOR BALL VALVES 11-0230-01-11-03-003

SHEET 1 of 2

Document No.

6A1

ANSI B 16.5 / ASME B16.25

Upto 4" ( A/G)

Bolted Construction & Trunion mounted

Above 4" ( A/G)

Bolted Const. & Trunion with DBB

CHAINSA - JHAJJAR - BAMNOULI PIPELINE PROJECT

GENERAL SPECIFICATION

600#

98 barg

1.6m approx. (for below 30" Valves)

API 5L X70 for 30" NB / A333 Gr. 6 for below 30" NB

Anti static and Anti Blow out system

VALVE DESIGN CONDITIONS

0.5

2.5 m approx.(only for U/G 30" Valves)

CONNECTING PIPE DETAILS

VALVE OPERATION

VALVE MATERIAL SPECIFICATION

Above 12"

HOV or XOV (as per MR)

MATERIAL OFFERED (Equivalent or Higher)SPECIFIED

*

*

*

*

*

*

*

*A194 Gr. 7M

248 HV10

Yes (at -20 deg C)

Hydrostatic Test Pressure

Air Test Pressure

Leak Test API 598

TESTING REQUIREMENTSeat: 1.1 X Design Pr.

6 bar

Hardness Test

Charpy Impact Test/ Temperature

29

CLIENT GAIL India LimitedQUANTITY

PAINTING A/G U/G

Surface Preparation SA 2.5 SA 2.5

Primer 30-40 micrometer 30-40 micrometer

Finish 30-40 micrometer 2 - layers polyurethane - 1000 microns

Notes

strength shall be equivalent to attached pipe specification.

XOV - Gas over oil Actuator/ Gas Actuator.

Rev.B

DATA SHEET FOR BALL VALVES

Document No.11-0230-01-11-03-003

SHEET 2 of 2

Manufacturer's Painting Specification Number

3. Unless otherwise stated, all tests will be witnessed by the purchaser/ control authority

* To be filled by Vendor

Legend: B.W - Butt welded, FLG - Flange, DBB - Double Block & Bleed, HOV - Hydraulically Actuated Valve, and

with this requisition.

2. Valve shall be provided with a pup piece integrally welded (in controlled factory conditions only) to the valve whose

1. This Data Sheet Shall be read in conjunction with the Technical Notes, M.T.O.(if any), PMS which are enclosed along

*

CHAINSA - JHAJJAR - BAMNOULI PIPELINE PROJECT

Fire Safe Test

Torque Test

As per API 6FA

As per API 6D

30

ITEM SHORT SIZE DESCRIPTION RATING DIMENSION MATERIAL REMARKS

CODE FROM- AND/OR STANDARD

THRU SCHED.

PIPES P 0.50" - 0.75" PE, SEAMLESS S160 ANSI B36-10

1" - 1.50" PE, SEAMLESS S160 ANSI B36-10

2" BE, SEAMLESS S160 ANSI B36-10

3" BE, SEAMLESS STD ANSI B36-10

4" - 10" BE, SEAMLESS XS ANSI B36-10

12" - 14" BE, SEAMLESS



ELBOWS 90 LR E 0.50" - 0.75" SW 6000# ANSI B16-11

1" - 1.50" SW 3000# ANSI B16-11

2" - 14" ASTM A420 WPL 6

16" - 18" ASTM A420 WPL 6 - W

ELBOWS 45 LR E45 0.50" - 0.75" SW 6000# ANSI B16-11

1" - 1.50" SW 3000# ANSI B16-11

2" - 14" ASTM A420 WPL 6

16" - 18" ASTM A420 WPL 6 - W

TEES EQUAL T 0.50" - 0.75" SW 6000#

1" - 1.50" SW 3000#

2" - 14" ASTM A420 WPL 6

16" - 18" ASTM A420 WPL 6 - W

TEES RED TR 0.50" - 0.75" SW 6000#

1" - 1.50" SW 3000#

2" - 14" ASTM A420 WPL 6

16" - 18" ASTM A420 WPL 6 - W

SOCKOLET S 0.50" - 0.75" SW 6000# MSS-SP 97 ASTM A 350 LF 2

1" -1.50" SW 3000# MSS-SP 97 ASTM A 350 LF 2

WELDOLETS W 2" - 6" BW - ANSI B16-25 XXS MSS-SP97 ASTM A 350 LF 2

CAPS C 0.50" - 0.75" SCRF 6000# ASME B16-11

1" - 1.50" SCRF 3000# ASME B16-11

2" - 18" BW ASME B16-9 ASTM A 420 Gr. WPL6

PLUG P 0.50" - 0.75" SCRM 6000# ASME B16-11

1" - 1.50" SCRM 3000# ASME B16-11

NIPPLES NA 0.50" - 0.75" PBE, SEAMLESS ANSI B36-10 ASTM A333 GR 6

NB 1" -1.50" PBE, SEAMLESS ANSI B36-10 ASTM A333 GR 6

FULL CF 0.50" - 0.75" SW 6000#

COUPLINGS 1" -1.50" SW 3000#

HALF HC 0.50" - 0.75" SW 6000#

COUPLINGS 1" - 1.50" SW 3000#

Rev.

C

CODE ANSI B 31.8

BASIC MATERIAL LTCS

CORROSION ALLOWANCE 1.5 mm

ANSI B16-11 ASTM A 350 LF 2

ASTM A 350 Gr. LF2

ASTM A 350 Gr. LF2

ANSI B16-11 ASTM A 350 LF 2

ANSI B16-11

PIPING MATERIAL SPECIFICATIONDocument No.

11-0230-01-08-02-001

Sheet 15 of 18

NOTE: X-RAYS 100%

CHAINSA - JHAJJAR - BAMNOULIPIPELINE PROJECT

PIPING SPECIFICATION

6A1

TEMPERATURE (-29 TO 65 °C)

DESIGN PRESSURE (98 bar g)

ANSI B16-9BW, 1.5D

ASTM A333 GR 6

RATING 600#

BW - ANSI B16-25 ANSI B16-9

BW, 1.5D ANSI B16-9

ASTM A 350 Gr. LF2

BW - ANSI B16-25 ANSI B16-9

Sch 60 ASTM A333 GR 6ANSI B36-10

ANSI B16-11

ASTM A 350 Gr. LF2

ASTM A 350 Gr. LF2

ASTM A 350 Gr. LF2

31

CLIENT GAIL (India) Limited

SIZE/QTY.PROJECT: CHAINSA - JHAJJAR - BAMNOULI

PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-018 A DATA SHEET FOR DRY GAS FILTER

SHEET 1 of 2

DRY GAS FILTER UNITS : Gas Flow - SCMD , Liquid Flow - m3/hr , Steam Flow – Kg/hr , Pressure - Kg/cm2g , Temperature – Deg C , Level / Length - mm

1 Tag No. 2 Line Size & Sch * *3 Inlet Size Out let size * *4 Service Removal of Dust Particles 5 Quantity 02 nos. of dry gas filter per skid

General

6 Vendor *7 Filter Separator Type Vertical Cartridge filtration 8 Fluid State Natural Gas Gas9 Oper S.G. Mol. Wt. ** **

10 Cp / Cv Compress. Factor * * * 11 Flash % Viscosity cP (Op) * **12 Flow Gas - Minimum / Normal /

Maximum**

13 Operating Pressure OperatingTemperature

** **

14 Gas Composition (including Liquid Contaminant)

**

15 Dust Content 0 - 0.1 mg/dm3

Service Conditions

1617 Design Code Design Class ASME SEC.VIII

DIV-I*

18 Design Pressure Design Temperature

98 65

19 Corrosion Allowance (For CS parts)

Corrosive/ Toxic Component

2.0 mm **

20 Liquid & Dust Particles / Mesh Size (Micron)

Filtration Efficiency ( Liquid & Solid particles larger than 5 microns)

3 Micron 99%

21 Pr. Drop Clean (Max) Pr. Drop – Dirty (Max)

0.10* 0.20*

22 Dust Content 0.1 mg/dm3

23 MOC of Filter Element Make * Fibre Glass media *24 OD X Length Nos of Cartridges *25 Element Bursting

Pressure Flow Direction 2.0 Outside to Inside

26 Flange Type Flange Rating & Finish

WNRF ** , 125 AARH

27 Fixing Details Nuts & Bolts / Studs * *28 PSV Size DPT Size * *29 Vent Size Drain Size * *30 Utility Connection

requirement UC Size Not Required Not Applicable

31 Head Connection Blind Flange with Nuts & Studs / Bolts

Design

32 Capacity 125% of the maximum flow rate. Dimensions 33 Overall Length Overall Height * *

32



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-018 A DATA SHEET FOR DRY GAS FILTER

SHEET 2 of 2

34 Shell Dia * *35 Empty Weight (Kg) Operating Weight

(Kg)* *

3637 Shell Shell Flange SA 516 Gr. 70 SA 350 Gr. LF2 38 Nozzle Nozzle Flange SA 333 Gr. 6 SA 350 Gr. LF2

Head Head Flange * SA 350 Gr. LF2 39Bottom Perforated Sheet SA 516 Gr. 70 *

40 Bolts / Studs Nuts SA 320 Gr. L7 SA 194 Gr. 2H 41 Gaskets O Ring SS 304 with

Graphite Insert BUNA `N'

42 Supports SA 36 / IS:2062 *

Material of Construction

4344 Davit Details YesAccessories

to be Provided

45 Companion Flange, Blind , Flange , Gaskets , Bolts / Studs , Nuts for All Nozzles

Yes

46 Hydrostatic Test Radiography @ 140% Design Pressure

Full (100%) Inspection & Testing

47 Dye Penetration Test Post Weld Heat Treatment

YES YES

Others 48 Painting Suitable for Corrosives Marine Environment

“ * “ By Vendor,

“**”-From process data

Notes

1. All C S parts weld joints to be stress relieved. Hardness in welds not to exceed 200 BHN.

2. Gas Composition & Quality is as per Process Data Sheet

3. Davit arm for top cover opening to be provided as per requirement

4. Filtration area should be minimum 8 times of inlet nozzle area.

5. Fire case PSV of suitable capacity shall be provided on each dry gas filter

33

1

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3

4

5

6

7

8

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10

11

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13

14

15

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25

26

27

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29

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35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

Rev.

C

MODEL NO.

*Selected CvVALVE DATA

BODY

Cv min. Cv max.

Bonnet type

Material

Visc., mPas(oper.)

Deg. Of superheat % Solids

Handwheel

Air supply pressure

Cp/Cv

*

*

VI

*

*

Slam shut GLOBE TYPE

*

Guiding No. of ports * *

End conn. Flanged,Size,Rating & Material

Lubricator isolation valve

Failure position

Facing & finish

Body material

ANSI leakage class

Soft Seating

Trim material.Plug/Disc/Ball & Seat

Other wetted parts

Line size

Port Size

Inlet Line I.D. Outlet Line I.D.

Body Size

SERVICE CONDITIONS

Flow liquid - Min./Normal/Max.

Inlet pressure

Set pressure

D.P shutoff

Max.

Flash %

Flow Gas - Min./Normal/Max.

Vapour Pr. Critical Pr.

OPTIONS

ACTUATOR

Input OutputPOSITIONER

Close At Open At

Gauges

Type

*

As per ANSI B 36.10

*

Natural Gas

PTFE

*

*

As per ANSI B 36.10

*

Pneumatic

*

Pipeline gas shall be used as supply

FC

*

SS 316

SS 316

Limit Switches

Cv Nor.

Inlet Velocity m/s

Positioner Solenoid Valve

ValveMAKE

IBR Certification

Actuator

SHEET 10 of 15

*' Vendor to furnish

11-0230-01-11-02-005

DOCUMENT NO.

DATA SHEET FORSLAM SHUT OFF VALVE

NOTES :-

*

*

* *

* *

CHAINSA JHAJJAR BAMNOULI PIPELINE PROJECT

Oper S.G

*

*

Mol. Wt.

Compress. Factor

*

*

*

*

*

Temperature-Oper.

QUANTITY:

Type of body

Tag Number

Service

Outlet Line no.

Inlet Line no.

GENERAL

Natural Gas Gas

Packing Material

*

*

LTCS

Plain

Type of regulator

Bypass

Filler with gauge

*

Flow Water - Min./Normal/Max.

Fluid

*

*

Limit Switch

*

Yes

Solenoid valve

I/P converter

State

*

< 85 dBA

*

*

* *

*

*

*

4

GAIL (India) Limited

* *

Predicted sound level dBA

*

* *

*

*

CLIENT:

5

Process Data shall be as per Design Basis

Vendor must furnish sizing calculation along with the offer

Two. Nos.(one for open & one for close) snap acting micro switch (SPDT) shall be provided for each slam shut valve.

Limit switch enclosure shall be WP to IP 65 & Eexd II A/II B T3 as per IEC 60079 / IS 2148

At the time of approval of DS, supplier shall furnish DS with catalogues.

1

2

3

34



PIPELINE PROJECT

Document No. Rev

FLOW CONTROL VALVE

UNITS : Gas Flow - MMSCMD, Liquid Flow - m3/hr , Steam Flow – Kg/hr , Pressure - Kg/cm2g ,Temperature – Deg C , Level / Length - mm

1 Tag No. 2 Inlet Line No. Skid Mounted 3 Outlet Line No. Skid Mounted 4 Service Natural Gas 5 Line Size Sch * *

General

6 Inlet Line I.D. Outlet Line I.D. 7 Type of Body Globe8 Body Size Port Size * *9 Guiding No of Ports * *

10 End Conn : Flgd. Size & Rating * *11 Facing & Finish * *12 Body Material LTCS13 Bonnet Type *14 Packing Material *15 Lubricator Isolation Valve 16 Trim Form Equal Percentage 17 Trim Matl.Plug/Disc/Ball/Seat SS 316 Stellited or better 18 Other Wetted Parts SS 316 or better 19 Soft Seating Material

Body

20 ANSI Leakage Class Class IV 21 Type Spring & Diaphragm 22 Close At Open At * *23 Failure Position FO

Actuator

24 Hand wheel Position Yes (Side Mounted) 25 NG Supply Pressure *26 Input Output 0.2 - 1.0 Positio

ner 27 Bypass Gauge Note - 1 Three 28 Solenoid Valve 29 I/P Converter ( Suitable for NG) Required 30 Filter With Gauge Required , Two Sets Options 31 Limit Switch/ Proximity Switch 32 Fluid State Natural Gas Gas33 Flow Liquid

Min Normal Max

34 Flow Gas - Min Normal Max * * *

35 FlowWater_Min Normal Max

36 InletPr._Min Normal Max PDS PDS PDS (Refer Process data for

the skid) 37 MAX. D.P@Min. normal & max.

Flow.* * **

38 Delta Pr. Shut Off *

Service Conditions

39 Temp. ° C Oper. Maximum * *

11-0230-01-08-03-016 A DATA SHEET FOR

FLOW CONTROL VALVE

SHEET 1 of 2

35



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-016 A DATA SHEET FOR

FLOW CONTROL VALVE

SHEET 2 of 2

40 Oper. S.G. Mol Weight * * (As per process data ) 41 CP/ CV Compressibility

Factor ** **

42 Flash % Visc (CP) --- **43 Deg.of Superheat % Solids 44 Vapour Pr. Critical

Pressure 45 % Opening Min/Nor/Max. 20 60 8546 47 Cv. Min. Cv. Max. ** **48 Cv. Nor. Selected Cv ** **49 Predicted Sound Level DBA * < 85 dBA

ValveData

50 Inlet Velocity m/sec *51 Valve Actuator * *52 Positioner Solenoid Valve Electro

pneumatic N.R.Model

Nos. 53 100% Radiography

NOTES :

1. By Pass is required if Input is equal to Output

2. * -To Be Furnished by the Bidder **- To be derived from Process data sheet.

3. Permissible Maximum Diff Pressure across the flow control valve is 0.5 kg/cm2.

36



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-017 A DATA SHEET FOR

PRESSURE CONTROL VALVE

SHEET 1 of 2

PILOT OPERATED SELF ACTUATED PRESSURE CONTROL VALVESUNITS: Flow> Liquid m*3/hr Gas- Sm3/hr Steam - Kg/hr Pressure> Kg/cm²g Temperature > Deg C Level/Length - MM General 1. Tag No. **

2. Inlet Line No. **3. Outlet Line No. **4. Line size & Thickness **5. Service Down stream

pressure regulation

6.Body 7. Type of regulator Self actuated Pilot operated

8. Body Size Port Size * *9. End Connection: Flanged.

Size & Rating * and **

10. Facing & Finish *11. Body Material LTCS12. Diaphragm Material *13. Trim, plug Material */SS316 or better14. Other Wetted Parts SS316 or better15. Leakage Class CLASS- VI as per ANSI 16. Impulse Connection EXTERNAL17. Valve Set Point **18. Regulation accuracy 1.0% of the set point (Note 2)

19.Options 20. Failure position Open or close (Note 3)

21. Limit Switch 22. Radiography Required 23. Charpy V-Notch Test Required 24. Impulse tubing/ fittings Required25. Pressure indicator In the sensing line required26. Installation Horizontal

Service Conditions

27. Fluid State ** | **

28. FlowGas-Min.

Nor. Max. ** | ** | **

29. Inlet Pressure **30. Pressure Drop at

Various Flow rates. (Note 4)

31. Shut Off Pressure **32. Temp.

Oper.Max. ** **

33. Oper. S. G.

Mol. Wt. ** **

34. Cp / Cv Compress Factor

** **

Valve 35. Kg or Cg Min. Kg or Cg * *

37



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-017 A DATA SHEET FOR

PRESSURE CONTROL VALVE

SHEET 2 of 2

Data Max.36. Kg or Cg Nor. Selected

Kg or Cg * *

37. Predicted Sound Level (d BA)

* (Note 7)

38. Inlet Velocity m/s. Less than 25 meter / second39.

ModelNos.

40. Valve *

41. Pilot *42.43. Quantity 1 No.

“*” By Bidder

“**” Refer Process data

NOTES:

1. Set Point of the regulator shall be adjustable. Vendor shall furnish the adjustable range of the pilot.

2. Accuracy of the pressure regulation shall be better then 1.0 % of the set pressure for the entire inlet pressure and flow range.

3. Active Pressure regulator valves shall be fail open type. Monitor valves shall be fail close type.

4. Pressure drop across the valve shall be selected by the vendor considering the Maximum Pressure drop considered across the skid, given set points (staggered set point of the two regulators and the slam shut valves) and the given inlet pressure conditions.

5. Regulator shall be sized to deliver the maximum flow at minimum pressure condition and the minimum flow at the maximum pressure condition.

6. The Inlet pressure variation is possible for all the flow rates and the PCV to be sized accordingly.

7. In case valve noise level for the worst case of the given process conditions exceeds 85 d BA (flange to flange of the valve), vendor shall provide and include the noise treatment with silencer/ expander.

8. The Pilot shall be supplied suitable for the set point of complete output pressure range. If one pilot could not cater the complete range, then separate pilot to be provided to cater the complete range.

38

APPENDIX 8

MANDATORY SPARES

FOR ITEM NO.-1

Sr. No. Item Description Qty. MS 100 Ultrasonic Flow meter

MS 101 Transducer for 16” size USM 1 NO.MS 105 Gas Chromatograph

MS 106 Detector 1 NO.MS 107 Rotameters 1 NO.MS 108 Column 1 NO.

FOR ITEM NO.-2

Sr. No. Item Description Qty.

MS 200 Pressure Gauge 1 Nos. (0 to 100 bar)

MS 205 Pressure Gauge 1 Nos. (0 to 60 bar) MS 210 FCV

MS 211 Trim (Seat and Plug) 1 NO.MS 212 Diaphragm 1 NO.

MS 215 Gas Chromatograph MS 216 Detector 1 NO.MS 217 Rotameters 1 NO.MS 218 Column 1 NO.

MS 220 Ultrasonic Flow MeterMS 221 Transducer for USM 1 NO.

MS 225 Filter:MS 226

Cartridge( 1 Complete Set for 1 number of filter) 2 Set MS 227 QOC Gaskets 1 Nos.

MS 230 Slam Shut off Valve/ monitor valve/ Regulator ValveMS 231 Pilot for SSV 1 NO.MS 232 Pilot for Monitor 1 NO.

Document No. Rev.

11-0230-01-11-02-005 C

SHEET 1 of 1

PACKAGE UNITINSTRUMENTATION

39



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-018 A DATA SHEET FOR

CREEP RELIEF VALVE

SHEET 1 of 2

CREEP RELIEF VALVE

UNITS : Gas Flow - MMSCMD, Liquid Flow - m3/hr , Steam Flow – Kg/hr , Pressure - Kg/cm2g ,Temperature – Deg C , Level / Length - mm

1 Tag No. *2 Line No./ Size *3 Vessel Protected *4 Quantity 2 nos. at Downstream

of FCV 5 Safety/ Relief Safety Relief

General

6 Vendor *7 Type Standard8 Full Nozzle Full Lift Mod.

Nozzle Full Nozzle Full Lift

9 Bonnet Type Closed 10 Conv./ Bellows/ Pllot

OperatedConventional

11 Inlet Conn. : Size & Rating * *12 Inlet Conn. : Facing & Finish RF

Serrated 125AARH

13 Outlet Conn. : Size & Rating * *14 Outlet Conn. : Facing &

FinishRFSerrated

125AARH

15 Cap Over Adj. Bolt : Required 16 Screwed / Bolted Bolted17 Lifting Gear - Type -

Valve

18 Test Gag Required 19 Body and Bonnet SA 352 Gr. LCB or

Equivalent20 Nozzle and Disc SS 316 or Equivalent 21 Spring Cadmium Plated CS 22 Bellows *

Material

23 Resilient Seat Seal * 24 Spring For different set point

range Required Options

2526 Code ASME Sec-VIII Div I /

API 520 27 Basis of Selection Skid flow capacity

Basis

2829 Fluid and State Natural

GasGas

30 Corrosive Constituent/ Corr. Allow.

CO2 (0.20%) / 2.0mm

31 Required Flow Capacity * 32 Mol. Wt. Oper S.G. 17.70 * 0.619 * 33 Oper. Pressure, kg/cm2(g) **

Service Conditions

34 Oper. Temp.°C Rel. Temp.°C

**

40



PIPELINE PROJECT

Document No. Rev

11-0230-01-08-03-018 A DATA SHEET FOR

CREEP RELIEF VALVE

SHEET 2 of 2

35 Valve Discharges to Atm.36 Back Press. Const. Or

Variable Atm. Constant

37 Set Pressure, kg/cm2(g) *38 Cold Bench Test Pressure *39 % Over Pressure % Blow

Down 20 *

40 Cp/ Cv Compressibility Factor

1.27 * 0.98 to 0.997 *

41 Viscosity at Rel. Temp. (cP) *42 Vess. :

WallTemp.°C

Surf. Area-m2 * *

43 Calculated Area-inch2 * 44 Sel. Area-inch2 Orifice

Design * F*

45 No. of Valves Reqd. for capacity

1

46 Total Area-inch2 *

Orifice

47 Actual Flow Capacity Nm3/hr *48 Model No. *49 Radiography Reqd. (100%)

Others

50 IBR Certification “ * “ By Vendor ** Refer Process data mentioned elsewhere

Notes

1. (*) Vendor to Furnish / Confirm

2. Vendor shall furnish sizing calculations to support his valve selection.

3. Valves shall be 100% radiographed

4. Vendor to consider coefficient of discharge de-rated by a factor of 0.9 as per ASME – VIII

5. For safety valve sizing, furnish certified capacities as per API-520.

41

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43

44

45

46

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