vcs ref. no.: vcs/noida/c&p/cp14588/pc/c&i meter/10- … to pre-bid queries.pdf8 i 8.2.1 of...

VCS Ref. No.: VCS/NOIDA/C&P/CP14588/PC/C&I METER/10-

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Owner -Indraprastha Gas Ltd.

Consultant - VCS Qality Services Pvt Ltd.

Pre-bid meeting held on 28.03.2019

Date: 14.06.2019

Sl. No. Vol. No. Clause No. Description Bidder’s Query/Clarification IGL/VCS Reply

1 I 4.5 of IFB

Duration of Contract:

The total contract duration shall be nineyears including 5 years CAMS beyond thedefect liability period.Duration of entire supply shall be Two (2)years from date of FOI.

The Tender has 4 Groups. Group A & Group B involve Supply of Goods (within 2 years) and Supply of Services (For 5 years after placement of contract).

QueryWhat is the scope of work for 4 years beyond the 5 years CAMS? Does it include extended warranty?Group C & Group D involve Supply of Goods (within 2 years after placement of contract).

QueryWhat is the scope of work for 7 years beyond the 2 years duration of entire supply?

The duration of contract shall be Five (05) years from the date of FOI. However, duration of entire supply shall be Two (2) years from date of FOI.

Refer Corrigendum#9

2 I 4.1 of IFB

Delivery:• The supply of 1st lot shall be completed within 10 Weeks from the date of FOI.• Delivery of 2nd and subsequent lots shall be completed within 8 Weeks from the date of intimation/release of orders from IGL.• The gap between two POs shall be minimum 02 (two) weeks.

Please amend as follows:• The supply of 1st lot shall be completed within 10 Weeks from the date of Purchase Order Acceptance.• Delivery of 2nd and subsequent lots shall be completed within 12 Weeks from the date of Purchase Order Acceptance.• The gap between two POs shall be minimum 02 (two) weeks.

Tender Condition shall Prevail

3 I 7.3 of IFB Bid Document FeeIn the event, the Foreign Manufacturer bids direct, the Indian Distributor is allowed to submit the Bid Document Fee in Indian Rupees on behalf of the Foreign Manufacturer.

Tender Fees shall be submitted by the bidder in whose name bid is to be submitted

4 I 15 of ITB

CURRENCIES OF BIDBids shall be quoted in the following currencies:a. Indian Bidders shall submit bid in Indian Rupees only.b. Foreign Bidders shall submit bid in the US Dollars or Euro.

The Schedule of Rates (SOR) may please be amended to accommodate Dual Currency;One for Goods which are imported,And other for services which are domestic.


5 I 9 of IFBBid SecurityAll bids must be accompanied by a bid security

In the event, the Foreign Manufacturer bids direct, the Indian Distributor is allowed to submit the Bid Security in Indian Rupees on behalf of the Foreign Manufacturer.

Bid security shall be submitted by the bidder in whose name bid is to be submitted

REPLY TO BIDDER'S PRE-BID QUERIES

Supply of Commercial Gas Meters And Regulators with Integrated AMR MIU, Data Storage Services For 5 Years

TENDER No. IGL/ND/C&P/EP15270, Dated 23.03.2019

COMMERCIAL


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Comparison of Prices

1. Custom duty shall be paid directly to the authority by IGL.

1. Is this applicable for both Domestic and Foreign Bidders?2. Is this applicable for all Groups?3. IGL must pay the Customs Duty within 24 hours of notice by Email, else demurrage charges if any shall be to IGL account shall grant delivery extension in case of any delay in paying the customs duty to the authority

1. Applicable only for Foreign bidders

2. Yes

3. Tender Condition shall Prevail

3. In case the bidder(s) quoted for more than one group, but meets bid evaluation criteria for lesser number of group(s), then price bids of only higher value group(s), as per PMC estimate, shall be opened against which bidder meets eligibility criteria cumulatively.

The bidder should be allowed to nominate the Group / Items for Price Bid opening & for the purpose of Evaluation.


7 I 8.2.5 of ITB Bidder to quote for full quantity of quoted item. Bid with part quantity shall be liable for rejection

Bidder understands that the Tender allows the bidder to quote any individual item in any group as far as full quantity is quoted.

Bidders understanding correct

8 I 8.2.1 of ITB Annual TurnoverThe bidder should have achieved a minimum turnover as under in any of preceding three financial years.

In this Qualification Criteria, like in Clause 8.1.2 & Clause 8.1.3, please include as follows“If bidder has quoted as an authorized distributor, then corresponding manufacturer’s Annual Turnover will be considered for qualification.”

RemarkThe “Working Capital” and the “Performance Bank Guarantee” relates to Transaction, hence the “Working Capital” criteria should be considered for bidder (Distributor) qualification while the “Performance Bank Guarantee” shall be submitted by the bidder (Distributor) or his OEM manufacturer according to the choice of IGL.


9 I 37 of ITB Split of AwardBidder understands that the Tender allows the bidder to quote any individual item in any group as far as full quantity is quoted.


10 4.1 of IFBDelivery:As per tender condition delivery schedule is 10 Weeks for first lot and 8 weeks for subsequent lots.

As quanities are large we propose to have delivery period of 16 Weeks for first lot and 10 Weeks for all subsequent lotsPlease confirm


11 7.5 of IFB Bid Due Date

Bid Due date is mentioned as 12.04.2019. As tender involves large QTY and thus total compilation activities will take more time.So we request you to extend Bid Due Date by 15 Days up to 26.04.2019Please confirm your acceptance for same


6 I 33.13 of ITB


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12 36 of ITB Award Criteria

In tender it is mentioned as "It is proposed to have one vendor for each item"As we understand evaluation will be done item wise and not for whole group i.e.lowest bidder will be selected for each line item i.e. D.1 / D.2 etc.

Please confirm our acceptance


13 I 37 of ITB Split of AwardIt is written - NOT APPLICABLE. As order is for huge Quantity, we suggest to have Split ClausePlease confirm your acceptance


14 4.1 of IFB Delivery : 10 weeks for 1st lot and 8 weeks for 2nd lot onwards

We request you to accept 16 weeks delivery FOT site for 1st LOT and 12 weeks for 2nd lot onwards. Meter and AMR are imported products and need time in manufacturing , transport and custom clearance you are requested to consider longer delivery period. Pl. accept.


158.2.1 & 8.2.4

of IFB

In case bidders quote for more than one group, the BEC (technical & financial) requirement shall be met on cumulative basis on quoted groups.

Pl. clarify if bidder is quoting for more than one group , than annual turn over requirement will be cumulative for those group mentioned in the table. Pl. confirm our understanding.


168.2.1 , 8.2.4 and

8.3 of IFBLast three years financial audited report

Pl. confirm if we can submit the annual turnover details certified by chartered accountant for year 2018-19, to meet the BEC requirement of Turnover.

Bidder has to submit "Annual audited reports complete in all respect of last three financial years

i.e. 2015-16, 2016- 17 & 2017-18"

Refer Clause 8.3, Point No. 4

17 11.1 of SSC CPBG for Group A and B should be provided for 60 months We request IGL to accept the CPBG in two time slots 36 months and 24 months as we are struggling with bankers to provide long period BG. At the end of 36 months another fresh CPBG can be issued for 24 months. Pl. accept the same.

Accepted

18 General NSIC certiificatePl. refer attached the NSIC certificate . Pl. let us know the same is acceptable with the tender requirement.

Bidder must renew the NSIC Certificate as its validity is expring on 29 July 2019

19 7.5 of IFB Bid submission dateBidder requesting IGL/VCS to please extend the date of bid submission by minimum 4 weeks from the date of pre bid reply.

Please refer corrigendum #8

20 8 of IFB

Bid Evaluation CriteriaGroup D

The bidder should have designed, manufactured, tested and supplied at least one item against each quoted items of the group that are of same or higher rating in terms of flow rate and should have successful supply of minimum value as shown in Table below under this tender in compliance with applicable codes and standards directly or indirectly to any established hydrocarbon company in India or abroad in previous 5 years reckoned from the schedule ofbid submission date

We undersatnd from the tender that evaluation will be on item wise basis whereas the Fiancial BEC is on the entire group basis. Kinldy note that individual items are significant in terms of value and it is rare that all the items are manufactured by one single manufacturer.Regulators mainly falls in 2 pressure categories i.e. low pressure and high pressure i.e. upto 500 mbar outlet pressure and 2 bar outlet pressure.In view of the item being major difference inspecification and type we request you to divide the group and financial BEC into 2 parts to have increased competition.



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21 8.2 of IFB Group D - Financial BEC

In addition we understand that value of the tender is under 10 Cr and generally the turnover requirement in your past tender in the same Financial year was 50% of tender value, whereas in present case It is 8.36 Cr in present tender. We request you to kindly consider reviewing the financial BEC.


22 General Kindly confirm the order distribution ration between L1 & L2 bidderOrder is not Splitable. Refer Clause 37.1 of ITB of

Commercial Volume

23 8 of IFB

Bid Evaluation CriteriaGroup D

The bidder should have designed, manufactured, tested and supplied at least one item against each quoted items of the group that are of same or higher rating in terms of flow rate and should have successful supply of minimum value as shown in Table below under this tender in compliance with applicable codes and standards directly or indirectly to any established hydrocarbon company in India or abroad in previous 5 years reckoned from the schedule ofbid submission date

We undersatnd from the tender that evaluation will be on item wise basis whereas the Fiancial BEC is on the entire group basis. Kinldy note that individual items are significant in terms of value and it is rare that all the items are manufactured by one single manufacturer. Regulators mainly falls in 2 pressure categories i.e. low pressure and high pressure i.e. upto 500 mbar outlet pressure and 2 bar outlet pressure.In view of the item being major difference in specification and type we request you to divide the group and financial BEC into 2 parts to have increased competition.


24 8.2 of IFB Group D - Financial BEC

In addition we understand that value of the tender is under 10 Cr and generally the turnover requirement in your past tender in the same Financial year was 50% of tender value, whereas in present case It is 8.36 Cr in present tender. We request you to kindly consider reviewing the financial BEC.


25 General Kindly confirm the order distribution ration betwee L1 & L2 bidderOrder is not Splitable. Refer Clause 37.1 of ITB of

Commercial Volume

268.3 of IFB, Page no 13

Documents Required

Please to inform you that Inspections for individulay items/regulators is only needed in India. Other than India no one required Inspection because they considered as manufacturer and they prefere to buy form manufacturer. So arranging the documents like inspection release note and dispatch clearance is not possible. Hence request you to not considered these documents.


27 8.2.1 of IFB Annual TurnoverThe bidder should have achieved a minimum turnover as under in any of preceding three financial years.

We a fully owned 100% Indian subsidiary of a foreign manufacturer we request you to consider the turnover of the mother company for the minimum turnover requirement

Annual Turnover of bidding company shall be considered only.

28 4 of IFB

DELIVERY SCHEDULE -The supply of 1st lot shall be completed within 10 Weeks from the date of FOI. -Delivery of 2nd and subsequent lots shall be completed within 8 Weeks orders from IGL.

Request to accept DELIVERY SCHEDULE AS -The supply of 1st lot shall be completed within 14 Weeks from the date of FOI. -Delivery of 2nd and subsequent lots shall be completed within 12 Weeks orders from IGL.



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29 4 of IFB

8.1 TECHNICAL:8.1.1 The bidder should have designed, manufactured, tested and supplied at least one item against each quoted items of the group that are of same or higher rating in terms of flow rate and should have successful supply of minimum value as shown in Table below under this tenderin compliance with applicable codes and standards directly or indirectly to any established

As we understand that Prices shall be evaluated on Item Wise basis to arrive at the lowest evaluated cost to Purchaser.Hence bidder can quote individual items of Group also. Please note that givin minimum values of supply reference to meet BEC are too high.It seems that givin valve is applicable to quote complete Group not for individual items. You are requested to please relook this clause and give suitable minimum values of supply reference to quote individual items of group also.


30 4.1 of IFB

Delivery ScheduleThe supply of 1st lot shall be completed within 10 Weeks from

the date of FOI.Delivery of 2nd and subsequent lots shall be completed within 8

Weeks from the date of intimation/release of orders from IGL. The gap between two POs shall be minimum 02 (two) weeks.

The delivery period of 10weeks for Lot 1 is grossly inadequate for delivery ofDomestic Diaphragm Meter with AMR. As the meters are manufactured outsideIndia and considering the transportation time and the Third Party Inspection, Wewould request IGL/VCS to kindly consider delivery period of atleast 12-14 weeks forthe first lot from the date of FOI/PO.for the Domestic meters.


31 8. of SSC

Price Reduction ScheduleIn case the Supplier / Contractor fails to deliver any or all the goodsto perform the services within the contractual delivery period(s)specified in the agreement for the reasons not solely attributable tothe Purchaser and / or subject to the provisions of Force Majeure(Clause of GCC of tender document), the Purchaser shall, withoutprejudice to its other remedies under the agreement, deduct a sum@ ½ % (Half Per Cent) of the value of the undelivered portion perComplete week for delay in supplies subject to a maximum ceilingof 5% of order value.

As per our understanding Price reduction schedule shall be applicable only onundelivered portion, please confirm.


328.1.1 of IFB

'Technical Criteria

The bidder should have designed, manufactured, tested andsupplied at least one item against each quoted items of the groupthat are of same or higher rating in terms of flow rate and shouldhave successful supply of minimum value as shown in Table belowunder this tender in compliance with applicable codes andstandards directly or indirectly to any established hydrocarboncompany in India or abroad in previous 5 years reckoned from theschedule of bid submission date.

We understand the Track record of Parent Company will be acceptable for BECqualification. Request IGL/VCS to pleae confirm the same.

BEC qualification criteria shall be submitted by thebidder, in whose name bid is to be submitted

VCS Ref. No.: VCS/NOIDA/C&P/CP14588/PC/C&I METER/10-R0




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No.Spec.No. Clause No. Description Bidder’s Query/Clarification IGL/VCS Reply

1 VOL II / II

Material Requisition for Commercial Meters with AMR & Regulators & data Hosting

Description of Goods / Services

Notes4 Bidder has to quote full quantity of quoted item mentioned above; partial quotation for the item shall be liable to rejection.

Bidder understands that the Tender allows the bidder to quote any individual item in any group as far as full quantity is quoted.

Bidder's understanding is correct.

2 VOL II / II Page 57 onwardsAll the questions are from "DATA HOSTING AND SERVICE AGREEMENT" (Document: EP15270_TID_290_Technical Volume - II of II.PDF, Page 57 onwards)

1. Is there any specific reason to have only GSM/GPRS based prepaid meters? Why not Lora?2. Point 4.4, the mode of communication should be one way?Generally prepaid meter would have two-way communication, in-order to receive communication to close connection/valve on completion of balance.3. What all cloud servers are accepted? Is there any specific vendor?4. Point 4.11, system should have log of meter reading on 1 hour interval. Which will reduce the battery life drastically? Why take reading at 1 hour internal? Why not take 1 ready every day or 2 at 12 hours of interval?5. Will IGL provide API necessary to provide required data from our server?6. Will IGL SAP has protocol of https and base level 64 / 126 bit encryption over API service calls?7. Will API be available in SOAP or REST full format?8. Point 7, what do they mean by marketing dashboard?

1. All technology shall be acceptable except RF technology. Please refer corrigendum#9 in annexure 42. Mode of Communcation shall be one/ two way. Please refer corrigendum#9 in annexure 43. Public & Private servers of reputed make are acceptable. Bidder shall be responsible for hosting of meter reading data in Bidder’s cloud server for 5 years from the date of FOI.Cloud server shall maintain hourly logs of gas consumption of each meter i.e., 24 logs per day for each meter and storing ofhistorical data for at least 6 months in Bidder’s cloud server Bidder to refer corrigendum#9 in annexure 4 for revised data hosting and service agreement for more information.

4. System shall communicate with server once in a day with data broadcasting for every 1 hour.5. IGL shall not provide API. API shall be provided by vendor for SAP/ GSP/ any other IGL requirement.6. Yes.7. Format for API shall be in the scope of vendor.8. IGL to inform after award of tender to successfull bidder.

3The following questions are regarding your meter, these questions will help us understand and plan better;

1. How much data the meter storage unit can store? (In terms of both space and days, including all kind of alerts, meter readings, battery status etc...)2. What is the latency of a system?3. Does the meter have temper protection and detection by default available?4. What all does the display unit indicates available on the meter?5. On which events does the valve of the software will automatically closes?6. What if the connection fails, will the data of meters stays in queue or generate an error? Basically will we able to know if the data is not being received?

1. Meter storage unit capacity shall be (24 hrs x 90 days) & cloud server storage capacity shall be (365 days X 5 years).2. All the data to be transferred after 60 minutes on dailiy basis.3. Meter shall have tamper protection and detection by default. 4. Cubic meter (m3) at standard conditions.5. There is no mention of any Software requirement for automatic closing of valve in the technical tender document.6. If the connection fails data shall stay in queue. After the restoration of connection, data shall be transferred to cloud server.

4 VOL II / II Technical Datasheet End Connection for 300 & 500 mbar regulators

As per datasheet, you have asked for end connections as 1" X 1.5" Flanged End.

Generally, for these type of regulators all gas companies are accepting screwed end

connection.

Please confirm your acceptance for screwed end connection

Tender conditions shall prevail.

5 VOL II / II Technical Datasheet End Connection for 2 Bar Regulators

As per datasheet, you have asked for end connections as 1" X 2" Flanged End. Please

note that the std. end connections are 1" x 1" or 2" x 2" .

Please confirm acceptance for the same.





TECHNICAL(Seamless Line Pipes)





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6 VOL II / IITechnical Datasheet

Page 53 of 65Flow

As given in the datasheet, flow is mentioned at Actual Condition, which means regulator

sizing should be done after conversion of same to SCMH i.e. 2 Bar regulator with flow of

250 M3/Hr should be designed for 750 SCMH.

Please confirm our understanding is correct.

Bidder understandinng is correct.

7 VOL II / IITechnical Datasheet

Page 53 of 65Accuracy Class

In Techcnical Datasheet, it is mentioned as AC10 / SG20, whereas in notes it is mentioned

as "accuracy of regulator shall be better than 2.5%"

We understand that Accuracy shall be as per AC10

Please confirm our understanding is correct

Bidder understandinng is correct.

8 8.1.1. of IFB

The bidder should have designed, manufactured, tested and supplied at least one item against each quoted items of the group that are of same or higher rating in terms of flow rate and should have successful supply of minimum value as shown in Table below under this tender in compliance with applicable codes and standards directly or indirectly to any established hydrocarbon company in India or abroad in previous 5 years reckoned from the schedule of bid submission date.

In case of group D –value mentioned is Rs.4,18,13,000

We are an Indian manufacturer and under Make in India programme have successfully developed and supplied domestic and commercial gas regulators to most of the CGD in India for past more than 12 years now.

Group D consists of mainly Two sub groups –

A) Low outlet Pressure Regulators of 300 and 500 mbar having same flow of 50 SCMH (Item 1 &2)B) High Outlet Pressure Regulators of 2 Bar having variable flow ranging from 30 SCMH to 250 SCMH (Item 3 to 7)Since long we are manufacturing and supplying Item 1 & 2 regularly to all CGD including you where in we have executed your order for more than 1000 Nos. in recent past as well as to other Leading Gas Companies like Gail Gas Limited, BPCL,MGL, TNGCL, BGL etc. successfully. As these Low Pressure Regulators (Item 1 & 2 of Group D-300 & 500 mbar) are having much low commercial Price compared to the price of High Pressure Regulators (2 Bar), it is necessary to separate minimum supply value amount for Low Pressure Regulators and High Pressure Regulators.ORAs per last tender floated by you (Tender No. IGL/ND/ C&P/EP14962 for Commercial Gas Meter and Regulators which was due on 12.07.2018 and later extended further, In regards to Group D of Commercial Regulators, BEC states that Manufacturer must have successfully supplied 25% of Regulators of Tendered quantity of each quoted item or higher size.As we are manufacturing Low Pressure Regulator of 300 and 500 mbar only and shall be participating only for Item 1 & 2 of Group D, it is requested to consider following:

Revise Minimum Supply Value of Item 1 & 2 Separately

OR

Consider 25% supply quantity for Item 1 & 2

Please refer revised BEC and SOR and corrigendum#9 as specified in Annexure 3 of Group D & E Datasheet

9Technical Data Sheet of CommercialRegulators

The Construction of Commercial Regulators of 300 and 500 mbar should have two stage pressure reduction for its better performance and safety. On technical Datasheet, theConstriction or No. of stage for pressure reduction is not mentioned. It is requested to kindly consider the Two Stage Pressure Reduction for Item No. 1 & 2 of Group D.

Vendor shall provide single/ double stage pressure regulator. Both are acceptable.

Please refer corrigendum#9 as specified in S. No. 4 regarding Number of stages for commercial gas regulators.

10 Page 14 - Vol-II Annexure-1 Serial Numbering of METERS

In our meter Each meter is identified by 16 alphanumeric characters (we call LDN), as shown below:

MTSK 03 XX Y00000000 = 16 alphanumeric characters

MTS = is fixed (Manufacturer's Code)

K = it may be set by the producer

Y = is a number related to the size of the meter (0 = G4, 1=G6, 2=G10, 3=G16 and 4=G25)

0485YXX= is our product code

Y0000000 = is the serial number attributed during the manufacturing process.

Morover we provides month and Year of Meter Manufacturing.

Kindly Accept.

Accepted.

( Group A)





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11 Page 20 - Vol-II 4.5

Ingress Protection

Gas meters shall have ingress protection to IP 54 or better in accordance with

IEC 60529.

In Tender Data sheet for Group - A Gas Meter IP 65 or better (Document No. : 14588/16-CD-IC-SP-001) is

mentioned.

Kindly Confirm the same.

In case of provision of EVC is required in Group A,-1.If EVC is part of meter, then Ingress Protection (IP)rating shall be IP 65.2. If EVC is external to meter , IP rating for EVC and meter shall be IP - 65 and IP- 54 respectively.

12 Page 47 - Vol-IITechnical Datasheet of

Commercial Meters

Back-run Stop

Required to prevent the meter from running backwards in case of

tampering or back flow condition.

Bidder understands that this requirement is only for Group - B and Group -C, However offered meters do not

allow Reverse Flow Counting And It produces ALARM for reverse Flow Generation.and meters upto G6 Can be

shut off when meter next time communicates with Server.

Pl. accept.

Noted. NRV and other necessary accessories are required. Please refer corrigendum#9 as specified in Annexure- 3 ( Note 4) of Group A Datasheet)


Commercial Meters

Reverse flow restriction-Meter shall be provided with a device in the outlet to

prevent reverse flow.

Bidder understands that this requirement is only for Group - B and Group -C, However offered meters do not

allow Reverse Flow Counting And It produces ALARM for reverse Flow Generation.and meters upto G6 Can be

shut off when meter next time communicates with Server.

Pl. accept.

Noted. NRV and other necessary accessories are required. Please refer corrigendum#9 as specified in Annexure- 3 ( Note 4) of Group A Datasheet)


Commercial MetersC to C Distance and END Connection

To match the requirements of C to C distance and End Connections, we will Provide suitable Brass Adaptors.

Kindly Accept.Accepted. Please refer corrigendum#9 as specified in Annexure- 3 ( Note 5) of Group A Datasheet)

15 Page 61 - Vol-II 7.0

Data Analytics For Group A meters Parameters required

1. Pressure;

2. Temperature;

3. Uncorrected volume;

4. Corrected volume;

5. Yesterday’s corrected volume (6:00AM to 6:00AM);

6. Total corrected volume;

7. Conversion factor;

8. Time/Date

For Group A Gas Meters ,

4. Corrected volume;

5. Yesterday’s corrected volume (6:00AM to 6:00AM);

6. Total corrected volume;

8. Time/Date

As we are offering Thermal Meters - It is offering corrected volume By compensating real time pressure and

Temperature , thanks to Thermal mass flow Technology. - so it do not provides Temperature , Pressure ,

Uncorrected Volume and Conversion factor.

However for Group B we can exhibit the parameters as listed. Pl. confirm.

For Group A-

For data analysis, only Output volume in m3 at standard conditions (Pressure= 101.325 kPa & Temperature= 15 °C) is required and additional parameters offered by bidders shall also be acceptable by IGL.

For Group B-

For data analysis, all the parameters mentioned are required.

16 Page 63 - Vol-II -

QAP for Group A and Group B meters

Hydro Test

We will do Pneumatic Test of the body at 1.5 time MAOP ,, as this is complete Electronic Meter hydro test is not

applicable of the meter.

PL. Confirm

This is applicable in case of specific meter requirement.However, meter type shall be as per MR in Technical Tender Document.

17 49 of 65Technica Data sheet of Group B

metersGoverning Standard : EN 1359 Kindly conifrm the Governing standard for RPD meter is EN12480 and EVC EN 12405

Confirmed. Please refer corrigendum#9 as specified in Annexure 3 in Governing standard of Group B Datasheet & EVC Datasheet

18 49 of 65Technica Data sheet of Group B

metersAccuracy & Rangiabilty Pl. accpet Rangiability 1:100 with accuracy as per EN 12480 stadard AC1.5

Please refer corrigendum#9 as specified in Annexure 3 in Rangebility and Accuracy Class of Group B Datasheet

19 49 of 65Technica Data sheet of Group B meters

Meter Size and Flange to Flange distance

We requst IGL to keep all meters sizes from G10 to G65 same which is 2" Flanged with 171 MM F To F distance.

This will allow IGL to do easy upgradation of the meters ( either higher or lower sizes based on customer demand ).

Pl. accept.

Please refer corrigendum#9 as specified in Annexure 3 in F-F distance of Group B Datasheet

20 49 of 65Technica Data sheet of Group B meters

Meter Size and Flange to Flange distance Pl. accept G100 meter 3" with Flange to Flange disatnce of 171 mm as per EN 12480. Pl. confirm,Please refer corrigendum#9 as specified in Annexure 3 in Size/Rating of Group B Datasheet

21 50 of 65Technica Data sheet of Group C

metersNote 4 of the Data sheet Pl. conifrm Note 4 is not aplicable ( Brass connectors ) for ROD meters .

Please refer corrigendum#9 as specified in Annexure 3 ( Note 4) of Group C Datasheet


metersPulse output Pl. confirm the exact requirement of Pulse output from RPD meters.

1 LF, 1 LF/HF and 1 AT (Anti-Tampering) pulse as specified in Annexure 3 in S. No. 40- output of Group C Datasheet

23 51 of 65Technica Data sheet of Group C meters

NRV - Ally 20 material internalPl. confirm internal as SS material as most of the CGD go for the same. Alloy 20 is a special material not manufactured by many manufacturer.

Please refer corrigendum#9 in Annexure 3 in NRV of Group C Datasheet & Annexure 2

Group B and C Gas Meters





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metersF To F distance as mentioned in table

Pl. accept G650 and G1000 meters with F to F disatnce of 406 mm , need be spacers will be provided to meet the

distance mentioned in the data sheet. Pl. confirm.

Noted and Confirmed. Please refer corrigendum#9 as specified in Annexure- 3 ( Note 4 of Group C- RPD flow meter datasheet)


metersG1000 Meter Size Pl. accpet 6" G1000 RPD meter as we hev supplied 6" G1000 metet to IGL earlier.

Noted and Confirmed. Vendor has to ensure maximum velocity through the meter is 20m/sec.

Please refer corrigendum#9 as specified in Annexure- 3 ( Note 4 of Group C- RPD flow meter datasheet)

26 54 of 65 EVC data sheet Typical Accuracy 0.2% Pl. accept +/- 0.5% overall accuracy as per EN 12405

Noted. Maximum gross error of flow calculation in EVC shall be better than +/- 0.5% of the measure value. Corrigendum shall be raised accordingly.

Please refer corrigendum#9 as specified in Annexure 3 in Accuracy of EVC Datasheet

27 54 of 65 EVC data sheet Communication ports We offerr RS232 port for local / remote communication which is pluggable type. Pl. accept.

Please refer corrigendum#9 as specified in Annexure 3 in Communication Ports of EVC datasheet.

28 54 of 65 EVC data sheet Pre fabricated FRP Canopy We offer EVC integral with meter body. We do not fosee FRP canopty requirement. Pl. confirm. Tender conditions shall prevail.

29 59 of 55 Data hosting & Service Agrrement

AMR requirementsFor Group B meters ( AMR )

We offer GSM modem housed in Ex proof PESO approved JB with external powered with Solar and Battery , pl. accept this conifguration.

Noted and Confirmed.

30 55Automatic Meter Reading and Electronic Volume Corrector (EVC)

The SIM cards shall be supplied by the Bidder in the name of Client. Monthly charges of

the SIM shall be included in supply.

We will supply meters Equipped with Thermal Mass Flow Technology, these meters directly Gives Volume in SCM , There is no need of additional EVC .SIM Cards :

As per the the officials of Telecom Operator Billing Of SIM Cards can be done only on the Name of Purchaser, if We procure SIM Cards on IGL'S name then IGL have to pay rental for the SIM Cards

But we understands that Bidder have to pay monthly charges for SIM CARDs & that can be done only if SIM Cards will be procured by Bidders on his own name.

So request you to allow Bidder to procure SIM Cards on Bidder's name. Please confirm

The SIM cards shall be supplied by the Bidder providing service for five years. Please refer corrigendum#9 in Annexure - 2

31 51 of 65Technica Data sheet of Group C meters

G250 Meter Size Pl. accpet 4" size G250 RPD meter.Noted and Confirmed. Vendor has to ensure maximum velocity through the meter is 20m/sec and . Please refer corrigendum#9 as specified in Annexure 3 ( Note 4 & Note 9) of Group C Datasheet





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32 VOL II / II

Class No 5.2(Thermal Meter)Page 22/65 oftechnicaldocument

Thermal mass flow meter shall be designed in accordance to latestversion of OIML R137 and shall be suitable foroutdoor / indoor installations, tamper proof and corrosion resistancefor a life period of 10 years.

Bidder would like to inform that PNGRB never recommended specifically for thermal meter intheir equipment list, PNGRB recommended OIML R137 for all type of Gas meter and alsoadditionally recommended specific EN standards for each type of Gas meter except thermalmeter.

OIML R137 is the International legal recommendation for all type of GAS METERS i.eDiaphragm, RPD, Turbine, Orifice, ultrasonic, thermal etc... However Individual type gas meters have theirown governing standard. Moreover, meter’s design, accuracy and further important validation arebased on their governing standard as per below: ‐1. For Diaphragm meters: ‐ EN13592. For RPD Meters: ‐ EN124803. For EVC (Volume corrector):‐ EN124054. For Thermal Meters: ‐ No Governing standard available as on date.In order to above we would like to draw your kind attention that tender is asking OIML R137 forThermal meters. Whereas at the same tender asking EN standard compulsion for other typemeters (Diaphragm, RPD & EVC).Therefore, with these specs equal and fair evaluation can’t be possible. As Thermal meters arenot complying to any EN standard.In the absence of any governing standard of thermal meter as per PNGRB specs. (T4S), bidderwould strongly recommend removal of thermal meter from tender requirement.

PNGRB recommends OIML R137-2 for Gas Meters. Thermal meteris a part of OIML R137-2 Standard. Tender is as per PNGRBguidelines.


33 VOL II / II

Output of EVC:‐Please referPage 54/65 oftechnical volume

1. Correct Flow rate in standard cubic meter per hour (SCMH)2. Correct Totalized volume (sm3)3. Temperature4. Pressure5. Correction factor6. Uncorrected flowrate7. Uncorrected volume

Bidder would like to inform that tender asking 7 outputs of EVC for vendors, who are looking tooffer meter + EVC, while for thermal Meters only volume in M3 required as per the tender.

Bidder requesting that in order to have consistency in evaluation process, tender requirementscannot be different for different products & solutions. We strongly suggest maintaining the same07 parameters for all bidders and their products & solutions.

For Group A, EVC is not required for all metering technologies. andwhere ever EVC is applicable, tender conditions shall prevail.

34 VOL II / II

Output of EVC: ‐Please referPage 54/65 oftechnicalvolume

Mechanical v/s digital display

Bidder would like to inform that in case of display failure in thermal meter, IGL may lost all theconsumption data and this could cause revenue loss to IGL.While with dual display option (Meter Mechanical + EVC digital), meter data always be availablefor billing.Bidder strongly recommend IGL/VCS to opt for dual display option.

In case of display failure, meter data shall be available throughcloud server and communication port.






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35 VOL II / II

Description ofThermal Meterpage 22/65 oftechnical volume

Thermal mass flow meter offers excellent sensitivity at low flowrates, high reliability due to no moving parts, high accuracy, highturndown ratio and easy installation. However, the suitability ofthermal mass flow meter with the fluid measured is to be checkedprior to usage of this meter.

We request that tender document should refrain from making technical capabilities claim for aparticular product/solution, unless they are backed by proper facts or compliance to knownstandard.We would like to share our insights on Thermal meters:

Dirt/Dust and impurities in gas may impact measurement accuracy (fouling of the

capillary)

• In all static meters the sensor used for measurement is quite sensitive to dirt/dust. Principle ofThermal meter measurement is to take a known part of the gas flow, by forcing it to pass to smallcircuit of known diameter, so that only this capillary part of the flow actually impacts on the sensorto provide the measurement. The accuracy of the measurement strongly depends on the ratiobetween the capillary circuit and the main pipe circuit in the meter.• Dust/dirt and impurities that in the years of usage will for sure accumulate on capillary circuit andwill change this ratio thus in the and affecting the reliability of the measurement.• Dirt/dust and impurities in general present in natural gas will for sure also affect the reliability ofthe sensor itself as in fact they might deposit on the sensor and so reducing its capability tomeasure.

Risks in algorithm reliability and uncertainties in low flow rates

• The thermo‐mass sensor must be warmed‐up to work and measure so it drains a lot of battery,in order to preserve battery then thermal meters have developed algorithms that basically adaptsthe heating and the sampling period from the sensor to the gas flow, reducing it when there it islow or no gas flow. This brings lit of uncertainty in the measurement process specially at low flowrates.

PNGRB recommends OIML R137-2 for Gas Meters. Thermal meter is a part of OIML R137-2 Standard. Tender is as per PNGRB guidelines.

36 VOL II / II

Description ofThermal Meterpage 22/65 oftechnicalvolume

Bidder would like to inform that the Thermal meter is designed & calibrated to measure only onetype of Gas (either H or L, which is not even covering the whole range of Wobbe index,recommended by PNGRB). In terms of Wobbe Index the PNRGB requirement is 39‐53, L typerange is 39.1 to 44.8 and for H type range is 45.7 to 54.7).

For thermal meters, it is not possible to cover the whole range of Wobbe index, using just onetype of thermal meter. It should be noted that in case of thermal meter, the meter can bedesigned & calibrated either for H type of Gas or L type of Gas at any given time of use. Thesame meter type can‐not be used for both types of gases at same time.

While other meters (i.e Diaphragm, RPD and EVC) are designed & calibrated to measure the alltype of gases at the same time as recommended by PNGRB.

In term of business implications, this will directly result in revenue loss for IGL due to in‐accuratemeasurement in case of thermal meters.

We strongly recommend that the meter type/technology selection should be able to accuratelymeasure the complete range of Wobbe Index as recommended by PNGRB.

As per PNGRB guidelines, Wobbe index of range 39-53 is applicable for domestic consumers, but not for Commercial & Industrial consumers.





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37 VOL II / II

ATEX approvalAreas Classificationfor EVCpage 54/65 oftechnical volume

Zone 1 Group IIA /IIB T3 Ex ' d'

Bidder would like to inform that as per tender EVC datasheet, the area of classification is “Zone 1Group IIA /IIB T3 Ex ' d'”

Its should be noted that both meters & EVC are intended to be used in potentially explosiveatmosphere, therefore area of classification Zone 0 must be compulsory for both meter & EVC asper ATEX directive 94/9/EC.

We would like to bring to your kind attention that thermal meters are designed to be installed insafe area only as per ATEX approval. At best thermal meter can only be connected to any otherdevice in hazardous are through an intrinsically safe circuit.

However due to inbuilt GSM/GPRS device the thermal meter can be potential cause of a majorhazard, since these meters will be installed in potentially explosive atmosphere.

Despite the above facts, tender does not mention any area of classification for thermal meter. In order to above, Bidder strongly recommend IGL/VCS to ensure mandatory zone 0 complianceas per ATEX directive 94/9/EC to avoid any potential chance of hazard.


38 VOL II / II

EVC datasheetpage 54/65 oftechnicalvolume

Spare battery shall be provided between 30 ‐32 months from thedate of PO and Vendor shall maintain minimum stock in India forimmediate replacement in case of requirement.

Bidder understand from the tender document that bidder (offering Meter+EVC) need to provide anadditional battery of EVC, however for thermal meter, there is no such additional requirement ofbattery.

Bidder requesting IGL/VCS to provide an equal chance and level playing field to all bidders.

Noted. Please refer corrigendum#9 as specified in Annexure 3 ( Note 5) of EVC Datasheet

39 VOL II / II

Clause no 5.4RPD meter, 24‐25/65 oftechnical volume

RPD Meter

Bidder would like to inform that few internal parts of RPD Meter are in Aluminum & few are in SS.Therefore, complete internal parts material of construction may not be SS 316.

Please also clarify the below points:‐Para1, 2 & 3, page 25/65 of Tender document, i.e Vortex meters etc.:‐ How a RPD meter’s bidder correlate this to RPD meters. This is completely a typographical error & not related with RPD meters.

Kindly confirm

1. Please refer corrigendum#9 annexure 2 at page number 11 of 18.

2. Bidder understanding is correct. Vortex meter is deleted from standard specification . Please refer corrigendum#9 in annexure 2 at page number 11 of 18.

40 VOL II / II

Clause no 5.4 RPD meter, 24‐25/65 oftechnical volume

RPD meter shall have provision to integrate with Automatic MeterReading (AMR) and either integral or external Electronic Volume Corrector (EVC), with encrypted communication capability via various communication options

Bidder would like to inform the disadvantages of integral type EVC as per below:‐

1. For Integral type Meter + EVC:‐i) In case of failure of EVC, IGL have to replace Meter & EVC both.Or In case of failure of meter, IGL have to replace Meter & EVC both.ii) For Integral type Meter + EVC:‐Integral type EVC during the ordering, it is compulsory to mention the flow direction as per thefield requirement due to limitation of design.iii) For Integral type Meter + EVC:‐only RS232 port is available with integral type EVC+Meter for local reading. No optical port isavailable.However, all above mentioned points shall not be applicable for External type Meter + EVC.In order to above, bidder requesting IGL/VCS to remove the requirement of Integral type EVCwith Meter.

i) As per tender specifications, Meter shall have either integral or external Electronic Volume Corrector (EVC). Both are acceptable

ii) Noted

iii). Please refer corrigendum#9 as specified in Annexure 3 in Communication Ports of EVC Datasheet





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41 VOL II / II4. TechnicalReuirement

Regulator shall be double stage pilot pressure

loading

42 VOL II / II Data Sheet Group DDirect actuating with spring control & diaphragmwith in-built pressure balance and integral slamshut valve system

43 VOL II / II4. TechnicalReuirement

Regulator shall be double stage pilot pressure

loading

44 VOL II / II Data Sheet Group DDirect actuating with spring control & diaphragm with in-built pressure balance and integral slam shut valve system

45 VOL II / II 5.5 AMR

Vendor shall supply the EVC installed on the suitable mounting frame / arrangement as per IGL site requirements. Pressure inputs shall be connected using suitable SS tube fitting and the other end of the tubing will be terminated in a 2-way manifold valve.

We under stand that 2 way manifold is not required for External Pressure Transducer of EVC. Kindly confirm

If used extrenal pressure transmitter, then tapping points, tubefitting, valve manifolds , transmitter mounting arrangements etc.shall be provided. If strain gauge type pressure transducer is used,in that case 2 valve manifold is not required. Strain gauge shall bedirectly mounted on the body of the meter.

46 VOL II / II Group B & CWe understand that Swing Type NRV is required with matching flange and Gasket. Kindly confirm.

Bidder's understanding is correct.

47 VOL II / II

Gas meters along with EVC & Modem shall be commissioned in presence of meter supplier service engineer only. Bidder shall ensure his presence at time of commissioning and shall include all cost in their rates. Bidder will ensure presence of theirrepresentative for technical assistance during commissioning of skid and no extra cost will be payable

We understand that our representative must present at site during commissioning. Kindly confirm the number of days to be conside to install each meter at site

Installation of gas meter is in IGL scope. Bidder shall commission the gas meter within 5 days after intimation of completion of meter installation.Refer S. No. 6 of Section 4 - Brief Scope of Supply / Services of Data Hosting and Service Agreement, page no. 58/65 of Technical Tender Documents.

We understand that Regulator of item number 1 & 2 will be two stage while item number 3,4,5,6 & 7will be single stage.All past tender was in the same manner.Two stage regulator gives constant pressure at out let in comparion to single stage if pressuredrop is very high. It also prevent condensation of Gas.For low differential pressure single regulators aremore stable.



We understand that Regulator of item number 1 & 2 will be two stage while item number 3,4,5,6 & 7will be single stage.All past tender was in the same manner.Two stage regulator gives constant pressure at out let in comparion to single stage if pressuredrop is very high. It also prevent condensation of Gas.For low differential pressure single regulators aremore stable.







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48 VOL II / II

Data Sheet Canopy

Prefabricated FRP canopy with required installationaccessories

We assume that canopy means enclosure of EVC and we do not need to supply additional canopy for EVC. Kindly confirm

Tender conditions shall prevail

49 VOL II / IIBrief ScopeGROUP B – GAS METERS WITH EVC AND AMR

We understand that Gas meter type is RPD. Kindly confirmPlease refer corrigendum#9 as specified in Annexure 3 inGoverning Standard of Group B Datasheet

50 VOL II / II

Group B - Datasheet for Gas MeterPage 49,50 of 65

Rangeability150:1 or better Request to accept rangebility as 100:1Please refer corrigendum#9 as specified in Annexure 3 in Rangebility of Group B Datasheet

51 VOL II / II


C-C Distance *We understand that face to face distance shall be as per manufacture standared and vendor has to specified.Please confirm

Please refer corrigendum#9 as specified in Annexure 3 in F- F distance of Group B Datasheet

52 VOL II / II


Notes:4 . Meters shall be provided with brass adaptors with free loose nut & PTFE washer (2mm) for converting the port size to 1” NPTM for inlet / outlet end connection. Spare washer (5 pairs) shall be provided with each meter.

End Connections specified as flanged end. Please confirm Confimed. Please refer corrigendum#9 as specified in Annexure- 3 ( Note 4) of Group B Datasheet)

53 VOL II / II

Group C - Datasheet for RPD MeterPage 51,52 of 65

Radiography 100 % required for all welded jointsRadiography shall not be applicable for RPD as MOC of RPD body is of Aluminium.Please confirm

Radiography is required if welded joints are present.

54 VOL II / II


Pre-amplifier Pre-amplifier shall not be applicable for RPD meter.Please confirm

RPD meter shall contain all required components to provide pulse outputs. For that, required electronics/ cards/amplifiers/ pre amplifier/ pulsers etc. shall be part of the meter.

55 VOL II / II


RANGEABILITY For G1000 RPD METER Request to accept rangebility for G1000 RPD meter as 1:80


56 VOL II / II


F-F Distance* (mm) Request to accept face to face distance for DN200 G1000 150# RPD meter as 533 mm and for DN150 G-650 150# as 260 mm

Please refer corrigendum#9 as specified in Annexure 3 in F- F distance, Size/ rating & Note-4 of Group C Datasheet

57 VOL II / II


Temperature Tap on Meter Body -Required, 1/4" NPT, Thermowell SS 316, RTD 6mm probe

We understand that only Temperature Tap of 1/4" NPT on Meter Body is required. Thermowell SS 316 and RTD 6mm probe shall not be required.Please confirm

Noted. However, vendor to confirm that, in 1/4" body tapping point, thermowell along with temperature element shall be mounted.

58 VOL II / IIDatasheet for EVCPage 54 of 65

Accuracy :Typical accuracy better than ±0.2% as per governing standard

As per EN 12405 standard the typical accuracy of the EVCis +/-5%. Pl. accept


Please refer corrigendum#9 as specified in Annexure 3 in Accuracy of EVC Datasheet


Spare battery shall be provided between 30 - 32 months from the date of PO and Vendor shall maintain minimum stock in India for immediate replacement in case of requirement.

a. As we understand 1 spare battery need to be considered for only EVC and not for AMR/modem device also. Please clarify as this is very important based on cost-implication. b. Vendor can supply the batteries to IGL within 30-32months condition to that sufficient stock should be available at vendor's store. So, we would like to inform you that every battery has its own self-life and due to passivation effect (dead stock / no usage) this tends to reduce the battery-life. It will be difficult for IGL to verify whether the supplied battery is of 100% capacity post 30-32 months. More-over unused batteries may be drained out even more. Hence, supply of spare batteries clause may be deleted and we request IGL to consider that in case of battery failure, immediate free replacement of battery will be a part of vendor services till end of service contract.

Noted. Please refer corrigendum#9 as specified in Annexure 3 ( Note 5) of EVC Datasheet





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60 VOL II / II


RANGEABILITY For G-16 & G25RPD meters are used for high rangebility application,so that very low flow rate are alos measured with precision.Models G16 and G25 are available with 100:1 rangebility and being used by many CGD's in India.Kindly make rangebilty required of G16 and G25 as 100:1 or better.

G-16 & G-25 are a part of Group B datasheet not Group C datasheet. Please refer corrigendum#9 as specified in Annexure 3 in rangebility of Group B Datasheet


Typical accuracy better than ± 0.2% (As per governing standard) Kindly accept overall Accuracy of Volume Correction ±0.5% of reading.


Please refer corrigendum#9 as specified in Annexure 3 for Accuracy Class of EVC Datasheet

62Group B Datasheet for Gas Meter

Accuracy Class: Class 1.5 Below G40 is 1.0 class, which is better than 1.5 class. Please confirm if that is acceptable Agreed. Please refer corrigendum#9 as specified in Annexure 3 for Accuracy Class of Group B Datasheet


Rangeability: 150:1 or better From our understanding, 150:1 is for diaphragm gas meter, for small RPD rotary flow meter, it is difficult to meet, please specify

Please refer corrigendum#9 as specified in Annexure 3 in rangebility of Group B Datasheet


Pressure Drop : <2 mbar From our understanding, it is a standard of diaphragm gas meter, please specify the requirement of RPD rotary flow meter

Pressure Drop : <2 mbar is for Group A datasheet

Please refer corrigendum#9 as specified in Annexure 3 ( Note 4) of Group A Datasheet


Body Casing: Steel with suitable coating on inside and outside for corrosion protection of casing.

We will provide RPD rotary flow meter, please confirm Cast Aluminium Alloy casing is acceptable Please refer corrigendum#9 as specified in Annexure 3 in Body Casing of Group B Datasheet


Centre to Centre Distance please specify the requirement for RPD rotary flow meter Please refer corrigendum#9 as specified in Annexure 3 of Group B Datasheet


Back-run Stop: Required to prevent the meter from running backwards in case of tampering or back flow condition.

Can we understand it as a non-return valve? Please confirm If, Back run stop is not a feature of gas meter, then it may be compensated by the provision of NRV.


Reverse Flow Restriction : Meter shall be provided with a device in the outlet to prevent reverse flow.

Please specify is this a requirement for diaphragm gas meter only, or an extra device is needed at the downstream to prevent reverse flow for supplied RPD rotary flow meter

Please refer corrigendum#9 as specified in Annexure 3 ( Note 5) of Group B Datasheet


Over-flow Protection Device An extra device can be provided to fill this requirement. Please confirm if this is acceptable.Acceptable. Please refer corrigendum#9 as specified in Annexure 3 ( Note 5) of Group B Datasheet

70Group C -RPD FLOW METER Datasheet

Pulses / M3: LF & HF* For LF, we have ATEX and IECEX, but for HF, do not have ATEX, please confirm if this is acceptable?

ATEX certication is required for LF and HF both. Please refer corrigendum#9 as specified in Annexure – 1 for revised MR in documents & data requirements on S. No. 17 - (* - note 7)


Enclosure protection : Weather proof IP-65 as per IEC 60529 We have IP67， but only certificate from China Metrology, no International certificate, please confirm if this is acceptable?

Not acceptable. Tender conditions shall prevail.


Impeller & Shaft: High Grade alloy steel with Synthetic Elastomers Impeller is aluminum, shaft is steel, please confirm if it is ok? Tender conditions shall prevail.


Type - 2 wire/ 3 wire : 2 wire Please clarify on what is this pre-amplifier functionsRPD meter shall contain all required components to provide pulse outputs. For that, required electronics/ cards/amplifiers/ pre amplifier/ pulsers etc. shall be part of the meter. .


Intrinsic safe : Ex'i Please confirm if any certificate required for Ex’i? Yes, Confirmed.


Enclosure : Weather proof IP-65 as per IEC 60529 We Comply but do not have a certificate. Kindly, confirm if this is acceptable. Certificate is mandatory. Tender conditions shall prevail.


NRV : Required, 1 No.; MOC: WCB body and Alloy 20 internals Please clarify if all the meters require NRV? Confirmed.





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G-250Please clarify the allowable pressure loss, as for G250, our standard product is DN100, and the certificate does not show size with G250-DN 80, can we supply meter with DN100 size while providing a DN 80 reducer to connect to pipeline? Please confirm

Noted and Confirmed. Vendor has to ensure maximum velocity through the meter is 20m/sec and . Please refer corrigendum#9 as specified in Annexure 3 ( Note 4 & Note 9) of Group C Datasheet

78DATASHEET FOR ELECTRONIC VOLUME CORRECTOR

Isolation : All Inputs, Outputs and power supply shall be individually isolated

Please clarify what does it mean “individually isolated”. Our EVC’s pressure and temperature sensors have individual terminals. Communication port COM2 is galvanicaly insulated. Power supply, digital inputs and digital outputs has common terminals marked as GND. Please confirm if this OK

Power supply, signals inputs and outputs (analog, digital, pulse) , terminal points shall be isolated with each other. There shall not be any mixing of signals and signal interference between them.


Features: Conduit connection of 1/2" NPTF with plugs shall be provided for output.

Please clarify. Our EVC has cable glands and internal terminals for wires. Conduit connection of 1/2" NPTF with plugs shall be provided for the spare entries of the cables for fututre intergration.


1. Communication Ports : RS 232/ 485 serial port for SCADA facility (configurable up to 9600 bps);2. USB 2.0 / 3.0 port for PC/Laptop connectivity;3. Optical port

Please clarify, do we need to meet all 3 options, normally Device is mounted in Ex zone so it’s not possible to create USB port Ex type. So some USB/RS485 converter or USB/Optical converter is needed. Please confirm

Please refer corrigendum#9 as specified in Annexure 3 Communication Ports of EVC datasheet.

81EP15270_TID_290_Volume II of II Page No.: 47

Group A - Datasheet for Gas Meter36. Volume Correction , 37. Cables & Connectors, 41. Input Pulse Characteristic, 42. Power Supply, 43. MIU Memory Capacity, 44. Protocol, 45. Transmission / Radiated Power

In the datasheet Group A gas meter, No.36, No.37, No.41~No.45, for thermal gas meter it will generate standard output directly without volume correction. Hence, points 36,37,41,42,43,44,45 are not applicable for thermal meters. Request M/s. IGL to confirm

EVC outputs shall not be applicable for thermal meters except output in m3 (cubic meter) at standard conditions. Additional parameters offered by bidders shall also be acceptable by IGL.


Group A - Datasheet for Gas Meter40. Communication between MIU and RemoteServer

Request M/s. IGL to please elaborate what is the Geo-tagging

Geo Tagging is the process of adding geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes or RSS feeds and is a form of geospatial metadata. This data usually consists of latitude and longitude coordinates, though they can also include altitude, bearing, distance, accuracy data, and place names, and perhaps a time stamp.


Group A - Datasheet for Gas MeterC-C distance of G25 gas meterThe C-C distance of G25 gas meter is 335mmCurrently, meter size for G25 is 280mmKindly, confirm that is it permitted to use a curved adaptor or corrugated adaptor to convert the C-C distance to 335mm

Please refer corrigendum#9 as specified in Annexure 3 (Note-8) of Group A Datasheet

84

EP15270_TID_290_Volume II of II Page No.: 48

Group A - Datasheet for Gas MeterNote: 4. Meters shall be provided with brass adaptors with free loose nut & PTFE washer (2mm) for converting the port size to 1” NPTM for inlet / outlet end connection. Spare washer (5 pairs) shall be provided with each meter.

In the specification Group A gas meter, Note 4, it requests to provide adaptor converting the port size to 1’’ NPTMWith our understanding, after converting the port size of G16 and G25 to 1’’ NPTM, it will affect the max flow rate of gas meter. Request M/s. IGL to clarify on this.


85

EP15270_TID_290_Volume II of II Page No.: 47 14. Design Pressure

Group A - Datasheet for Gas MeterM/s. IGL to please confirm pressure drop is acceptable as per following :Below G6 <2mbarAbove G10 <3mbar


86

EP15270_TID_290_Volume II of II Page No.: 47 15. Pressure Drop

Group A - Datasheet for Gas MeterKindly confirm when back flow occurs gas meter will shut off the valve to stop the flow.

It is not intended by IGL but if it is an additional feature, then it is acceptable to IGL

87

EP15270_TID_290_Volume II of II Page No.: 47 27. Back-run Stop

Group A - Datasheet for Gas MeterKindly confirm when back flow occurs gas meter will shut off the valve to stop the flow.

It is not intended by IGL but if it is an additional feature, then it is acceptable to IGL





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36. Volume CorrectionGroup A - Datasheet for Gas Meter Not Applicable. As thermal gas meters measure actual volume of gas volume correction is not

applicable. Kindly confirm

For Group A-

For data analysis, only Output volume in m3 at standard conditions (Pressure= 101.325 kPa & Temperature= 15 °C) is required and additional parameters offered by bidders shall also be acceptable by IGL.


37. Cables & ConnectorsGroup A - Datasheet for Gas Meter

Optical cables & connectors are provided. Optical cables & connectors are required as per tender

90


8. Quantity: One no. per metre

DATA SHEET FOR ELECTRONIC VOLUME CORRECTORNot Applicable thermal gas meter comes with an integrated EVC

Please refer corrigendum#9 as specified in Annexure 3 in Quantity of EVC datasheet


9. FunctionDATA SHEET FOR ELECTRONIC VOLUME CORRECTOR The thermal meter will measure actual gas volume hence temperature, pressure and

compressibility factors are not applicableTender conditions shall prevail.


10. Accuracy: Typical accuracy better than ±0.2% as per governing standard

DATA SHEET FOR ELECTRONIC VOLUME CORRECTORThe accuracy level of integrated thermal meter is 1.5 class. Kindly confirm Tender conditions shall prevail.


DATA SHEET FOR ELECTRONIC VOLUME CORRECTOROutput

Temperature, Pressure, Correction Factor, Uncorrected flow rate, uncorrected volume not applicable for thermal gas meters


94


23. Display: 2 line LCD with 16 characters

DATA SHEET FOR ELECTRONIC VOLUME CORRECTOR The digital display of thermal gas meter has 1 line, 8 characters.It comply EN16314,which is standard for thermal meter. Please confirm

Please refer corrigendum#9 as specified in Annexure 3 in Display of EVC datasheet

95


25. Calculations / Corrections: Compressibility : AGA8 (Detail method), NX-18,S-GERG

DATA SHEET FOR ELECTRONIC VOLUME CORRECTORNot Applicable for thermal meters Tender conditions shall prevail.

96


29. Features: Conduit connection of 1/2" NPTF with plugs shall be provided for output.

DATA SHEET FOR ELECTRONIC VOLUME CORRECTORNot Applicable for thermal meters Tender conditions shall prevail.

97


32.Large and configurable database and can store hourly, daily, monthly data with date & time stamp for pressure, temperature and corrected flow and consumption up to 1500 records or better.

DATA SHEET FOR ELECTRONIC VOLUME CORRECTORThe Thermal meter following EN16314, storing hourly, daily and monthly data, and update the data to server everyday when it communicates with management system. The current storage capacity is 1 year daily record and 24 months monthly record. Request M/s. IGL to kindly confirm


98


35. Communication Ports

DATA SHEET FOR ELECTRONIC VOLUME CORRECTOROptical port available for communication. M/s. IGL to confirm

Please refer corrigendum#9 as specified in Annexure 3 in Communication Ports of EVC datasheet.





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99


DATA SHEET FOR ELECTRONIC VOLUME CORRECTORBattery life shall be not less than 5 years if replaceable if not replaceable battery life shall be 10 years

Battery is replaceable for thermal meters approximate life is five yearsIf the battery is replaceable, then battery life shall not be less than 5 years is acceptable. Please refer note 5 of EVC datasheet

100


DATA SHEET FOR ELECTRONIC VOLUME CORRECTORThe communication protocol and message structure details to be used on the RS 232 / 485 serial communication port (for SCADA) shall be supplied after placement of order

Not Applicable for thermal meters Tender conditions shall prevail.

101


DATA SHEET FOR ELECTRONIC VOLUME CORRECTOREVC shall be certified for type test from NMI / PTB or equivalent independent international laboratories as per EN standards.


102

EP15270_TID_290_Volume II of II Page No.: 54 39. Fittings: Pressure and

Temperature SensorDATA SHEET FOR ELECTRONIC VOLUME CORRECTOR


103


40. Cable EntryDATA SHEET FOR ELECTRONIC VOLUME CORRECTOR


104


16 - Type approval from weights &measures

Request M/s. IGL to consider Type approval certificates at the time of supply. Tender condition shall prevail

Bidder would like to request IGL to consider self declaration for ATEX, because our gas meter is certified to OIML-R137 along with EMC test certificate which is one of the criteria to check spark in the electronics and is designed in such a way that the electronics part is outside the gas enclosure and there is no chance for the gas to come in contact with the electronics for an explosion. The Electronics as per ATEX directive falls under Group II Category 3. Hence for ATEX "Conformity Assessment Procedure" it comes under "Internal Control of Production" which is: The manufacturer shall prepare technical documentation that allows the conformity of a product to be assessed.

In view of this we humbly request IGL to accept the self declaration by the manufacturer as per the ATEX conformity assement procedure.


4. BRIEF SCOPE OF SUPPLY / SERVICESMode of communication should be one way

Please confirm only machine to server communication is required and not server to machine communication

Mode of Communcation shall be one/ two way. Please refer corrigendum#9 in annexure 4

107

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Technical Specification Diaphragm Meter

Diaphragm meter shall be designed in accordance to EN 1359:1999 + A1 Amendment 2006 or latest

Latest EN1359:2008 A1 has been followed internationally and has been approved by CEN on 20th March 2006. We understand that same shall be applicable for the said tender, please confirm our understanding.

Please refer corrigendum#9 as specified in Annexure 3 on S. No. 4 of Group A datasheet.

105EP15270_TID_290_Volume II of II

Page No.: 13

17- ATEX approval certificates

Please refer corrigendum#9 as specified in Annexure – 1 for revised MR in documents & data requirements on S. No. 17 - (* -note 7)





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Data Sheet Commercial Diaphragm Meter

Accuracy: For G4 to G25±3% (QMIN TO 0.1 QMAX.) ±1.5% (0.1 QMAX TO QMAX.)

As per EN1359, the calibration is done for the meters at three points, preferably at Qmin, 0.2Qmax and Qmax. The meter error curve is more stable at 0.2 Qmax and results are more reliable based on improved reproducibility. May we please request IGL for the confirmation on calibration of meters at three points


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Pressure Drop1. G-4 : Less than 2 mbar2. G6 Less than 2 mbar3. G10 Less than 2 mbar4. G16 : Less than 2 mbar5. G25 Less than 2 mbar

For G16 and above : As per the previaling standard and practice the maximum allowable pressure drop for meters above G16 is upto 3mbar. May we request IGL to kindly accept the same?

Please refer corrigendum#9 as specified in Annexure 1 (Note 4 ) of Group A datasheet.

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Diaphragm Meter Group A – Commercial Diaphragm Meters with EVC Kindly confirm the requirement of Diaphragm Meters with EVC Confirmed.

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47 of 65Data Sheet Commercial Diaphragm Meter

8 Digit index with auto reset facilityStandard Index for Diaphragm Meter for upto G6 are 8 digit cumulative Index 5 digits plus 3 decimal points (00000.000) & G10 and above are 8 digit cumulative Index. 6 digits plus 2 decimal points (000000.00). Kindly confirm the same

Confirmed.

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DN 20 / 3/4” NPTDN 25 / 1” NPTDN 40 / 1 ½” NPTDN 40 / 1 ½” NPTDN 50 / 2” NPT

We understand that the end connection requirement of IGL is 1" NPT for inlet and outlet connection. Please confirm

Vendor understanding is correct. Please refer Notes of Group A datasheet.

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Meters shall be provided with brass adaptors with free loose nut & PTFE washer (2mm) for converting the port size to 1”NPTM for inlet / outlet end connection. Spare washer (5 pairs) shall be provided with each meter.

We understand that suitable adapters of same material of meter end connection can also be provided. Please Confirm our acceptance.

Vendor understanding is correct. Please refer Notes of Group A datasheet.

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51 of 65Data Sheet Rotary Positive Displacement Meter

1 LF, 1 LF/HF and 1 AT (Anti Tampering)Please confirm 2 LF Pulsers will be Ok. Further we request IGL/VCS to also please elaborate on additional 1 AT (anti tampering) output.

1. Confirmed.2. 1 AT (Anti Tampering) shall be provided with pulse output to prevent any malfunctioning of output of the gas meter reading.

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Data Sheet Rotary Positive Displacement Meter

Calibration We understand that calibration with Air at atmospheric pressure is required, please confirm.

Vendor understanding is correct. However, special precautions have to be taken to do a proper calibration with air in order to maintain the ripple, as the the releasing volumes will introduce ripples in the flow.

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51 of 65Data Sheet Rotary Positive Displacement Meter

G-650 RPD Meter DN150F to F distance – 450 mm

Face to Face distance for 6" meter is 260 mm. We request IGL to kindly confirm the acceptance of the same.

Please refer corrigendum#9 as specified in Annexure 3 (Note-4) of Group C Datasheet

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Data Sheet Rotary EVCTemperature signal form RTD measured value PT100/1000.All interconnecting cable shall be screened and armoured

PT500 RTD sensor have a feature of power saving. Hence we request IGL to kindly confirm the acceptance of PT 500 RTD sensor also.


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General

GROUP B – GAS METERS WITH EVC AND AMR

G - 10, 2 bar, 16 m3/hrG - 16, 2 bar, 25 m3/hr

G - 25, 2 bar, 40 m3/hr

G - 40, 2 bar, 65 m3/hr G - 65, 2 bar, 100 m3/hr

G - 100, 2 bar, 160 m3/hr

Please mention the type of metersPlease refer corrigendum#9 as specified in Annexure 3 in governing standard of Group B datasheet.

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Group B - Datasheet for Gas Meter

Type of meterWe request IGL to please confirm the type of meter acceptable for this requirement. Will RPD meters be acceptable for the same?

Yes RPD meters are acccepted. Please refer corrigendum#9 as specified in Annexure 3 in governing standard of Group B datasheet.

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Gas Meter If RPD meter is acceptable

If yes, may we request IGL to please confirm whether the face to face distance of RPD meter be acceptable for this?

Please refer corrigendum#9 as specified in Annexure 3 in F-F distance of Group B datasheet.





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121 Volume II of II 4. Technical Reuirement Regulator shall be double stage pilot pressure loading

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Volume II of II

Data Sheet Group DDirect actuating with spring control & diaphragm with in-built pressure balance and integral slam shut valve system

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Volume II of II

point 4.1 of Vol II of II Regulators Documentation required in Technical BidPlease to infoomr you that weight and Measerement certificate is not for Pressure regulator as regulator not menat for custody transfer. Hence request you to waive the same.

Yes, Confirmed. Weights and measurement certificate is not required for regulators but required only for the gas meters

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Volume II of II

Accuracy Class Data Sheet of Commercial regulatorIn Data sheet you mentioned 2 AC class, 1 is AC 10 and in notes it is 2.5%, please to inform you that direct acting regulators are having Acurracy class of 10%. Hence we request you to considered the AC 10 for direct acting regulators

Noted and Confirmed. Please refer corrigendum#9 as specified in Annexure 3 of revised Group D & E of commercial regulators datasheet.

125 Tag Plate Data Sheet of Commercial regulator

As you aware that the commercial regulators are small regulators and even the body does not have that much of space for extra tag plate or to have even bigger plate. Even change in design is big task and time consuming. Hence we request you to allow to use manufactuter tag plate as standard.

Tender condition shall prevail

126 Cut Off Points Data Sheet of Commercial regulatorAll the cutoff Pints mentioend is contradictory and not as per AC and SG Class, because relief cannot be set beyond the set point of OPSO of SSV. Hence request you to allow us the use of manufacturer set points according to AC 10 and SG 20 for direct acting regulators.

Please refer corrigendum#9 as specified in Annexure 3 in Cut Off Points of Group D & E Datasheet

We understand that Regulator of item number 1 & 2 will be two stage while item number 3,4,5,6 & 7 will be single stage.All past tender was in the same manner.Two stage regulator gives constant pressure at out let in comparion to single stage if pressure drop is very high. It also prevent condensation of Gas.For low differential pressure single regulators are more stable.

