TECHNICAL SPECIFICATIONS FOR PAC &SYN GAS INVITATION …

TECHNICAL DOCUMENTS

INVITATION TO BID

NATIONAL FERTILIZERS LTD

VIJAIPUR ESP-II PROJECT

TECHNICAL SPECIFICATIONS FOR PAC &SYN GAS

INVITATION TO BID

ENERGY SAVING PROJECT-II

NATIONAL FERTILIZERS LIMITED VIJAIPUR

VAM FOR PROCESS AIR COMPRESSOR

& SYN. GAS COMPRESSOR CHILLER

OF

Ammonia-II

TECHNICAL DOCUMENTS

INVITATION TO BID



TENDER NO: NFVP/ESP-II/VAM/2018/002

13.02.2018

VAPOUR ABSORPTION MACHINE, IT’s AUXILIARIES &

REPLACEMENT OF FILTER HOUSE

(VAM for PAC & SYN GAS COMPRESSOR CHILLER)

OF

AMMONIA II

TECHNICAL DOCUMENTS

INVITATION TO BID



Annexure to Tech Specifications - ITB Ammonia-II

ANNEXURE DESCRIPTION

AMMONIA II VAM Annexure-I Design &Operation Data

ALL VAM Annexure-II Meteorological Data NFL Vijaipur

ALL VAM Annexure-III Civil Design Data

ALL VAM Annexure-IV Proposed Sketch

AMMONIA II VAM Annexure-V Electrical Requirement

AMMONIA II VAM Annexure-VI Instrumentation Requirement

AMMONIA II VAM Annexure-VII Guarantee Data & Test Procedure

ALL VAM Annexure-VIII Two Year Spares

ALL VAM Annexure-IX Prequalification Criteria for Vendors

ALL VAM Annexure-X Drawings & Documents to be submitted by Vendors

TECHNICAL DOCUMENTS

INVITATION TO BID



TABLE OF CONTENTS

Sr. No. Description REMARKS

1. Introduction

2. Enquiry

3. Vendor’s General Scope of Supply

4. Mechanical Requirements

5. Electrical Requirements

6. Instrumentation Requirements

7. Battery Limit

8. Inspection and Testing

9. Erection and Commissioning

10. Annual Rate Contract (ARC)

11. NFL’s Scope

12. Guarantee

13. Time Period

14. Mode of Quotation

15. Availability of Existing Utilities

16. Drawings & Documents

17. List of Spares required for 2 years operation

18. List of Vendors/Sub-Contractors

19. Guarantee Test Run

20. Prequalification Criteria for Vendors.

TECHNICAL DOCUMENTS

INVITATION TO BID



NATIONAL FERTILIZERS LIMITED

(A GOVT of India Undertaking) VIJAIPUR UNIT Distt. GUNA (M.P.)-473111

Fax: 07544-273089, 273109 Mobile no: 9464169624, 9417560184

1. Introduction: National Fertilizers Limited (NFL) Vijaipur owns & operates two nos.

Ammonia plants of 1520 MTPD each reassessed capacity & four streams of Urea plant

each having reassessed capacity of 1310 MTPD at NFL, Vijaipur, Distt Guna in the state

of Madhya Pradesh. The plants have been revamped from 1520 MTPD to 1750 MTPD in

Ammonia Plant of Vijaipur I&1520 MTPD to 1864 MTPD in ammonia plant of Vijaipur

II & that of Urea‐I & II plants to 2 X 1515 MTPD & 2 X 1615.5 MTPD respectively.

Now NFL intends to install VAM unit along with its auxiliaries for cooling of suction air

to process Air compressor and third stage suction gas of synthesis gas compressor.

Additionally one of filter house also to be installed at the inlet suction of process Air

Compressor.

Process Air compressor is a multi-stage split casing centrifugal compressor supplied by

M/s Deutch Babcock-Borsig AG.

2. Enquiry:

No Of Item – One or two number Vapour Absorption Machine (VAM) units and one

number filter house with associated auxiliaries.

Description ‐Design, procurement of raw material, manufacturing, inspection, testing,

painting, insulation, supply, erection (including civil, mechanical, electrical &

instrumentation), supply of chemicals & lubricants for initial charge, pre‐commissioning,

commissioning & GTR of complete unit of Vapour Absorption Machine (VAM) with air

cooling coil & ancillary items as per requirements where the air cooling coil shall be installed

at inlet side of the suction filter house of PAC at Ammonia-II plant of NFL Vijaipur, Guna

(Distt), Madhya Pradesh, India for cooling of suction air from 40 °C and 41% RH to 15 °C

and 100% humidity as per the technical Specifications/operating data provided in Ammonia

TECHNICAL DOCUMENTS

INVITATION TO BID



II VAM TechAnnexure‐I. PAC operating data is provided at Annexure‐I. Replacement of

the existing filter house shall be in vendor’s scope. Necessary modifications of existing filter

house if required will be in the vendor scope.

Quantity required: One or two nos. Vapour Absorption Machine (VAM) unit and one

number filter house with associated auxiliaries.

Preferred Completion Time for VAM: 08 months from the date of LOI for supply of

complete VAM as well as filtration system including erection of VAM along with its

auxiliaries (except erection of filter house and inlet duct).

Preferred Completion Time for Erection and commissioning of filter house: Additional

10days after handing over of site by NFL for PAC.

3. Vendor’s General Scope of Supply:

3.1. Design, procurement of raw material, manufacturing, inspection, testing, painting,

insulation, supply, erection (including civil & structural, mechanical, electrical &

instrumentation), supply of chemicals & lubricants for initial charge

,pre‐commissioning, commissioning & GTR of complete unit of Vapour Absorption

Machine (VAM) with complete filtration unit (weather hood & bird screen, pre filter

section consisting of combination of two type of filters, cooling coil, droplet

separator, mist eliminator and fine filtration,) & ancillary items as per requirements

where the air cooling coil shall be installed at inlet side of the suction filter house of

PAC in Ammonia-II plant of NFL Vijaipur, India for cooling air from 40°C/41% RH

to 15°C and 100% RH. Vendor shall design the VAM and mention the consumption

of all utilities like chilled/DM water, power, cooling water, instrument air and steam

in the technical bid. Estimated refrigeration load of VAM is 1270TR (one or two

units). However, Vendor shall mention actual TR required on the basis of furnished

data in the NIT as specified in Ammonia II VAM Tech Annexure‐II & provide

figures in respect of chilled/DM water, power, cooling water& hot process

TECHNICAL DOCUMENTS

INVITATION TO BID



condenaste for actual TR so as to achieve specified cooled air temperature at fine

filter outlet & chilled water temperature at VAM outlet. Machine Turn Down ratio to

be given by vendor. Chilled water temperature at the outlet of VAM unit shall be 7°C

considering cost & future application. Same shall be demonstrated. Above mentioned

sequence of filters/arrangement and cooling coil is tentative and party may rearrange

the same as per its specific design to meet the guarantees.

3.2. Air cooling coil of the VAM will be located within the filter house of PAC. Complete

replacement of the filter house unit shall be carried out by the vendor so as to ensure

mist free air, while ensuring best particulate removal efficiency at least possible

pressure drop across filter housing (Max pressure drop across filter house is

limited to 30 mm WC). Ten days shall be allowed for carrying out complete job of

installation of cooling coil, replacement of filter house & hook up and commissioning

for PAC. This point shall be considered while designing the layout. The suitability of

layout shall be finalized during technical discussions after placement of order.

Drawings of existing filter houses of PAC is enclosed.

3.3. Chiller unit/VAM shall be designed in such a way so that at rated conditions,

operation at varying load conditions is possible without any incidence of

crystallization.

3.4. Vendor shall provide weather hood and bird screen, pre‐filterat the inlet of the

cooling coil. This pre‐filter shall have arrangement for removal and cleaning on line.

The pre filter section consisting of combination of two types of filters with one

mounting wall shall be reverse pocket type construction, media‐washable, 100%

synthetic, non-woven, Grade G4 and M6 class as per EN 779-2012 standard. The

filter media is to be fitted in SS 304 flange type frame size 610*610mm with pocket

depth of 330mm and 650mm for G4 and M6 class respectively. Thickness of the

mounting frame shall be 3.0 mm. Bird Screen shall be of SS-304, Mesh Size 5.5mm

square opening with Φ 2.0mm.

TECHNICAL DOCUMENTS

INVITATION TO BID



Vendor shall provide permanent instrumentation to measure pressure drop across the

pre filter at field and provide digital indicationfor periodic observation and recording

at DCS.

3.5. The fixing arrangement of weather hood, bird screenand pre‐filter elements should be

convenient for easy removal for washing, in running condition.

3.6. The cooling coil shall be erected on MS structure, suitably painted for avoiding

corrosion, having separate supports grouted for taking entire load of the coil and the

ducting. Cooling coil shall be finned tubes coil. MOC of the tube shall SA213 Gr

SS304L or superior and that for fins is aluminum. The tubes used for the coil shall

seamless. The cooling coil should be in modular construction and assembled at site

for easy rigging during installation. There should be adequate arrangement for

collection and draining for the condensed moisture that might accumulate on the coil

for quick draining. Civil design data is given in Ammonia II VAM Tech

Annexure‐III. The bottom of filtration system frame shall be of SS-304 from cooling

coil to end of filtration house.

3.7. Vendor shall design and erect droplet separator and mist eliminator cum filter andfine

filter in the filter house at the place of existing filters. Any kind of entrainment of

moisture in the droplet form is detrimental to the blades. Only inertial type moisture

separation is not adequate. It is, therefore, necessary that the Vendor shall design and

provide the mist eliminator and fine filter so as to ensure mist free supply of air to the

compressor.

The droplet separator shall be of marine aluminum grade. The mist eliminator cum

filter shall be of ISOePM10 50% as per ISO 16890 standard reverse short pocket type

construction. The element should perform dual duties of mist elimination cum

filtration. The filters should be water resistant, able to operate at 100% RH air, 100%

synthetic, non-woven, progressive density media. Desired MOC of mounting frames

for holding mist eliminator cum filter media elements in the filter house is SS-304;

3.0mm thick of frame size 610*610mm pocket depth shall be 330mm.

TECHNICAL DOCUMENTS

INVITATION TO BID



The fine filter shall be of cassette type F9 grade as per EN779-2012 standard and

ISOePM1 80% as per ISO 16890 standard. The fine filter shall be having 420mm

overall depth and filtration area not less than 30 Sq. Mtr. The fine stage filter should

be provided with acrylic bonded media only. The elements shall be mounted on

standard frame size of 610*610 mm. These elements shall ensure full utilization of

the filtering area, uniform dust deposition as well as homogenous air flow coupled

with a low average pressure drop.

There should be protection grid at the end of Filter house of MOC SS304.

Vendor shall provide methodology as well as instrumentation to demonstrate that the

droplet separator and mist eliminator is functioning satisfactorily as per given

specification. This methodology shall be discussed and approved by NFL during

technical discussions. Vendor shall provide permanent instrumentation to measure

pressure drop across the pre filter, cooling coil, mist eliminator, fine filter as detailed

in the proposed sketch asattachedAmmonia II VAM Tech Annexure –IV in the field

as well as in the DCS. Vendor shall provide digital indication for periodic

observation and recording across filter house at DCS.

3.8. Vendor shall provide permanent temperature measurement system for air at the

Downstream of filter house which will be used for guarantee test/GTR as well as

regular monitoring at field & DCS.

3.9. Complete job of removal of existing filter house including any cutting, welding of

existing metal frame for fixing of the new filter house including any civil work is in

Vendor’s scope.

3.10. Vendor shall make necessary arrangement for removal of the water formed during

TECHNICAL DOCUMENTS

INVITATION TO BID



cooling of the air and for taking the water away from filter house and draining it at

suitable location. The piping for such arrangement is in vendor’s scope.

3.11. The location for the erection of the VAM is 30‐40 meters approx. away from the

existing filter house. Vendor may visit the site for actual locations. Vendor shall erect

and successfully commission the complete Vapour Absorption Machine with all its

accessories and auxiliaries including the associated electrical, instruments & control

equipments.

3.12. The parameters of Utilities available in plant have been mentioned at Ammonia II

VAM Tech Annexure-I. In case, the parameters required by the Vendor are not

suitable i.e. different than that mentioned in the enquiry, then same shall be

mentioned clearly in the technical bid.

3.13. The Vapour Absorption Machine shall be factory assembled and leak tested,

packaged, water‐cooled Vapour Absorption Machine, consisting of absorber,

evaporator assembly, condenser/hot process condensate‐fired generator, solution heat

exchangers, solution and refrigerant pumps and motor, purge system, control panel

with machine status, diagnostic display and safeties, interconnecting piping,

absorbent, inhibitor and refrigerant, auxiliary components and accessories.

3.14. Unit shall be capable of continuous operation in the range of10‐100% capacity. The

temperature of air at the inlet of PAC is to be maintained automatically constant at

any set point (at 150

C. or any point above that) by controlling chilled water flow. The

required control instrumentation shall be provided by the vendor. All control valves

is to be provided with bypass line with isolation valve. All control valves shall be

provided with upstream & downstream isolation valve for maintenance of control

valve. Cooling water supply line to VAM unit shall be provided with back flushing

arrangement with back flush line of same size with isolation valve.

TECHNICAL DOCUMENTS

INVITATION TO BID



3.15. Initial charge of Chemicals (Li Br etc) & lubricants required for commissioning and

running the system are in Vendor’s scope as part of VAM supply itself. Vendor shall

also indicate annual quantity of refrigerant chemicals & lubricants required as

make‐up, for regular operation of VAM in the technical bid.

3.16. Vendor shall give one week advance intimation for shop inspection and testing where

ever required. Inspection, testing & expediting shall be in the scope of the vendor.TPI

inspection will be carried by third party like (BV/LRIS/TUV only).

3.17. Vendors may send their technical representative to site, for carrying out preliminary

study and technical discussions with the plant authorities before submission of bid.

3.18. Vendors shall provide and install flow meters for flow measurement on permanent

basis for measuring the flow of condensate, cooling water and chilled water. These

flow measurements will be used during GTR as well as during normal operation. The

flow meters shall be of reputed make and reliable in operation. Vendor shall provide

temperature measurement at field and digital readout with proper resolution for

permanent measurement of air temperature at the outlet of fine filter at DCS which is

the guarantee point for the air temperature.

4. Mechanical requirements

4.1. Air Cooling coil and ducting – Air cooling coil shall be finned tubes coil. The MOC

for tube shall be SA 213 Grade SS 304L and that for fins shall be aluminum. The

tubes used for the coil shall be seamless tubes. The tubes shall be purchased from

reputed SS tube manufacturers or their authorized dealers only and approved from

NFL.

4.2. The cooling coil can be in modular construction and assembled at site, for ease of

rigging during installation. Flange joints shall be provided between coil header and

the chilled water lines. These joints shall be outside the coil enclosure. Chilled water

TECHNICAL DOCUMENTS

INVITATION TO BID



make up lines shall be of SS.

4.3. The outer casing of the cooling coil and the duct connecting with existing filter house

inlet shall be of IS 2002 – Steel. The duct shall be designed and fabricated such that it

will be connected to filter house inlet, without much modification and with minimum

pressure drop.

4.4. Any metal structural cutting and welding jobs required for connecting the new duct to

the existing filter house shall be in Vendor’s scope.

4.5. The total pressure drop on air side for pre‐filter, air Cooling Coil & moisture

eliminator cum fine filter taken together at clean condition and rated flow shall not

exceed 30 mm WC. Vendor shall provide instrumentation for regular on line

measurement of such pressure drop.Max pressure drop across filter house is limited

to 30 mm WC. Party will intimate the average value of pressure drop across filter

house for eighteen months from the date of commissioning.

4.6. The provision for removal of pre‐filter elements in running condition for cleaning

and cleaning of the finned tubes from outside in running condition shall be

considered in design.

4.7. The pre‐filter elements shall be mounted on 3.0 mm thick SS304 frames. They are to

be fixed by bolting on CS structure. The bolts shall be of SS 304 material. The

arrangement shall be such that removal and fixing will take minimum time.

4.8. Vendor shall provide arrangement for removal of the water formed during cooling of

the air and for taking the water at suitable drain location after using it for cooling the

steam condensate. The piping for such arrangement shall be in vendor’s scope.

4.9. Pumps‐The Solution and refrigerant pumps shall be centrifugal, canned motor type.

Pumps shall be hermetically sealed with MOC as stainless steel SS-304. . Both

solution and refrigerant pump shall be 1W + 1 STBY (one running pump for one

TECHNICAL DOCUMENTS

INVITATION TO BID



VAM and one standby for the same on each machine). Vendors list for the pumps

shall be got approved by NFL before ordering.

4.10. There shall be provision of Non return valve in vacuum pump line.

4.11. The chilled water pumps shall be of centrifugal back pull out type construction

having mechanical seal and oil lubricated. There shall be 2W + 1STBY pump for

both the VAMS. Vendor list shall be got approved by NFL before ordering.

4.12. Valves‐Isolation valves shall be installed at inlet and outlet to enable easy

maintenance of the all pumps. The isolation valves of cooling water and chilled water

pump, condensate pump shall be flanged type, rising stem, gate valves of reputed

make. MOC of valve for chilled water shall be CF8; MOC for steam valves shall be

CS. The Isolation valves provided for vacuum pump should be of welded type. There

should be provision of NRV in discharge line.

4.13. Gaskets‐For cooling water and chilled water, acid proof non asbestos type. For steam

lines readymade spiral wound graphite gaskets to be used. Vendor is free to use better

material.

4.14. MOC of pipes, pipe fittings and valves‐The MOC for chilled water line shall be SS

304L and MOC for Cooling water pipe, steam pipes shall be A 106 Gr B.

4.15. Evaporator, Absorber and Condenser‐MOC of Evaporator tubes shall be SS‐316L

Seamless tubes. Tube sheet shall be of identical material of tube to avoid

intergranular corrosion. Shell should be of IS 2062. MOC for steam condensate

expansion tank shall be SS 304. Vendor shall specify the design and test pressure in

the technical bid. The balance material of construction shall be as per vendor’s

standard.

4.16. Generator – MOC of tubes shall be SS‐304L seamless tubes. Tube sheet shall be of

identical material of tube to avoid intergranular corrosion. Shell should be of IS

2062. Vendor shall specify the design and test pressure in the technical bid. The

TECHNICAL DOCUMENTS

INVITATION TO BID



balance material of construction shall be as per vendor’s standard. The vendor can

supply alternate suitable material.However the same shall be mentioned in the

deviation list with explanation for approval of NFL.

4.17. All holding down bolts, anchor bolts (MOC‐high tensile steel) are in Vendor’s scope

of supply.

4.18. The hot insulation of steam lines and vessel including material and application, as per

IS 7413 latest revision shall be in Vendor’s scope.

4.19. The cold insulation (PUF insulation preferably moulded) of VAM unit, chilled water

lines, Cooling coil ducting , filter house outside area up to PAC inlet flange as per IS

7240 latest revision is in the Vendor’s scope. The Nitrile rubber and thermocol will

not be acceptable.

4.20. Painting‐All MS parts of the VAM unit shall be painted with 2 coats of high built

chlorinated rubber based red oxide zinc phosphate primer followed by 2 coats of high

built CR dark grey finished paint. Total dry film thickness (DFT) should be 140

microns. The interior CS surfaces which are in contact with cold air shall be applied

with two coats of epoxy paint.

4.21. SS Seamless tubes shall be as per ASME‐SA213

4.22. Pipe numbers at tapping points: Shall be provided by NFL at Battery limit.

4.23. Piping erection shall be as per ASME‐B31.3 latest revision

4.24. List of Spares for 2 years operation:As Common Ammonia II and CPP VAM

Tech Annexure VIII

TECHNICAL DOCUMENTS

INVITATION TO BID



5. Electrical requirements:

Design, supply, Erection and commissioning and Testing of the entire electrical

system shall be as perAmmonia II VAM Tech Annexure-V attached.

Preparation & submission of test reports and co‐ordinating for inspection and

clearances from Central Electricity Authorities / State Electricity Authorities as

required shall be under the scope of the vendor.

These inspections shall however, not absolve the vendor from its responsibility for

making good any defect which shall be noticed subsequently.

6. Instrumentation requirements

Design, supply, Erection and commissioning and Testing of the entire

instrumentation system shall be as per Ammonia II VAM Tech Annexure-VI

attached.

7. Battery Limits

Following are the battery limits of Vendor fixed for the VAM

7.1. Tie in point at downstream of E 3321 stripper ( Battery limit). The condensate control

valve is in Vendor’s scope. Hot condensate inlet as well as return line will be vendor

scope.

7.2. The entire piping for chilled water from VAM to the cooling coil and back to VAM

along with the structural supports and cold insulation is in Vendor’s scope. Two no

flow control valves along with isolation valves; one for PAC and another for syn

Compressor will be party’s scope.

7.3. Cooling water Tie in point from the main inlet and return headers located in

Ammonia–II plant along with isolation valves.

TECHNICAL DOCUMENTS

INVITATION TO BID



7.4 Flange joints for chilled water outlet and return flange at VAM machine for syn gas

chiller.

8. Inspection and Testing

8.1. All the equipment shall be subjected to shop inspection at various manufacturing

stages.

8.2. VAM shall be performance tested for full TR capacity at specified chilled water,

cooling water & steam consumption, power which shall be witnessed by NFL & TPI

representative at vendor’s works. Utility consumption values should be equal to or

less than values provided in the Purchase/Work order. Vendor shall submit QAP for

approval within 03 weeks after getting LOI or PO/WO. However acceptance of shop

tests or shop inspection by Purchaser’s inspector shall not absolve the vendor of not

taking responsibility to fulfill the guarantee specified.

8.3. Final acceptance of system shall be carried out at the site after erection,

commissioning and GTR.

9. Erection and Commissioning:

Erection and commissioning job including supervision and labour for the VAM is in

Vendor’s scope which includes but is not limited to

9.1. Transportation of machine to site.

9.2. Unloading of the machine. Vendor shall arrange all required manpower and tools and

tackles for this job. Cranes and tractor trailer for unloading, transportation within

NFL site and erection job shall be provided by NFL at free of cost. Party may check

the suitability for same at site before bidding.

9.3. Taking the machine on the foundation and its erection including labour as required

TECHNICAL DOCUMENTS

INVITATION TO BID



for it.

9.4. The entire hot as well as cold insulation job for the VAM is in Vendor’s scope.

9.5. Vendor shall start erection job within 10 days from receipt of the complete VAM

unit at site preferably.

9.6. Completeness of all the erection and pre commissioning activities will be considered

as mechanical completion except filter house and inlet duct. The mechanical

completion will be certified by NFL.

9.7. Vendor shall take up and complete the commissioning as per schedule

given/approved by NFL. Vendor shall also provide supervision services for

commissioning as well as Guarantee test run (GTR).

9.8. All the consumables and spares required for commissioning are in Vendor’s scope.

10. Annual rate contract (ARC)

10.1. Vendor shall sign Annual Rate Contract for a period of 3 years for maintenance of the

VAM, after completion of Guarantee period.

10.2. This ARC contract shall include periodic check, preventive and corrective

maintenance jobs related to mechanical, electrical, and instrumentation control

system(PLC) including supply of consumables, spares and also supply and make up

of chemicals. The periodicity of checking shall be adequate for detecting and

rectifying equipment problems well in advance.

10.3. Cost of required spares & consumables will be separately indicated along with their

unit rates. NFL will be at liberty to decide about usage of a particular

spare/consumable & order the same appropriately.

TECHNICAL DOCUMENTS

INVITATION TO BID



10.4. The value of such ARC as lump sum amount, excluding cost of spares &

consumables, shall be separately indicated in price bid. The cost of 3 years ARC will

be considered during evaluation of the price bid.

11. NFL’s Scope

11.1. Crane and tractor trailer required for unloading, shifting and erection jobs shall be

provided by NFL free of cost. There are 300T, 120 T, 75 T, 35 T, 18 T & 08 T cranes

available with NFL. The crane accessibility for the existing location shall be

discussed during technical discussion and Vendor shall confirm that the job can be

done with existing cranes available with NFL, after considering weights of all

components.

11.2. Necessary tie‐in points from existing NFL plant for Instrument Air, condensate, Chilled

water make up piping & cooling water piping for the VAM unit shall be confirmed

by NFL. Tie‐in points will be discussed & finalized at site in presence of vendor

representative. Vendor has to lay utility lines from tie in points of existing plant up to

& within VAM battery limit.

11.3.Two sources shall be arranged by vendor from existing MCC in substation to the

electrical panel to be installed by the vendor

11.4. For erection & construction jobs, power & water connection will be provided by NFL at

any one point within VAM battery limit. Construction water & power shall be

metered but will not be charged. Vendor shall indicate tentative max requirement of

construction power & water at any given point of time.

11.5. All valves, pipings, fittings etc for the VAM unit shall be in the scope of Bidder.

12. Guarantee

The guarantee data & test procedure is mentioned at Ammonia II VAM Tech

TECHNICAL DOCUMENTS

INVITATION TO BID



Annexure VII.

12.1. The supplier shall guarantee the equipment and their components against faulty Design

and manufacturing with regard to mechanical / electrical / instrumentation adequacies

like reliable performance and workmanship.

12.2. The supplier shall give guarantee for sustained trouble free operation of VAM unit for

cooling the suction air of compressor to achieve air temperature of 150

C at suction of

PAC at the outlet of fine filter, for conditions specified in the NIT i.e. 40 °C &41%

RH and also for any other favourable conditions considering the %RH and

temperature together. Parameters for GTR shall be as per Ammonia II VAM Tech

Annexure VII.

12.3. Above guarantees shall be for trouble free operation for period of 18 months from date

of successful commissioning or 24 months from the date of mechanical completion,

whichever is earlier.

12.4. During GTR, vendor shall demonstrate that the utility consumption, i.e power, steam

and cooling water, shall be as specified in the technical offer submitted by the vendor

.

12.5. The power consumption is the sum total of power drawn by all the continuous operating

pumps in VAM battery limit.

12.6. In case of any deviation in any of the above performance, vendor shall carry out all the

necessary modifications to meet the performance criteria, at his own risk and cost,

within reasonable time. Even after modification, if the performance does not meet the

above criteria, then equipment will not be accepted. In such case Vendor shall be

given mutually agreed time frame to make any rectifications required to meet the

required performance, at his own risk and cost.

12.7. The performance with respect to cold air temperature at inlet to PAC shall be checked

under different ambient conditions including summer, with in the Guarantee period,

TECHNICAL DOCUMENTS

INVITATION TO BID



i.e. within 18 months from date of commissioning, and if inlet air temperature is not

met subject to the design conditions i.e. 40 °C &41% RH , then entire amount of

PBG shall be forfeited.

12.8. Mutually agreed damages due to delays in contractor’s performance & in case of failure

to meet performance guarantees shall be leviable as per commercial ITB clauses.

13. Time Period –

13.1. The whole system is to be designed, manufactured, supplied, erected & commissioned

within 08 months from the date of placement of clear work order/LOI except filter

house and inlet duct.

13.2. Party shall start Erection with in 10 days of receipt of material at site.

13.3. Preferred Completion Time for Erection and commissioning of filter house: Additional

10 days after handing over of site by NFL

14. Mode of Quotation‐as per commercial ITB

15.Availability of Existing Utilities: The same is provided in theAmmonia II VAM

TechAnnexure-I.

16. Drawings& Documents: As per Common Ammonia II and CPP VAM Tech Annexure X

17. List of spares required for 2 years operation: Prices to be given separately in price bid.

18. List of Vendors/ Sub vendors ‐Item wise list of Vendors/ sub vendors for Mechanical

items i.e pumps, valves, coil, tubes for cooling coil, pre filter, mist Eliminator, tubes

for various heat exchangers. Item wise list of Vendors for Electrical motors, panels,

and for Instrumentation items like PLC, control valves, all field instruments, which

will be approved by NFL .

In case any the vendor is not known to NFL/not in the vendor list of NFL, the party

TECHNICAL DOCUMENTS

INVITATION TO BID



shall have to submit credential of the vendor for approval from NFL.

19. GUARANTEE TEST RUN :As per Ammonia II VAM Tech Annexure VII

20.PREQUALIFICATION CRITERIA FOR VENDORS : As per Common Ammonia II

and CPP VAM Tech Annexure -IX