tendering specification · 2019-06-18 · page 6 of 20 2.16 gn 2 withdrawal valve: vaporizers bank...

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Tendering Specification

Scope of supply:

Large Space Simulation Chamber (LSSC) in ETF-II/ Facilities is used for conducting

thermal vacuum performance test and thermal balance test on spacecraft and other

large size appendages. The existing two numbers of 1 million liters capacity LN2

Dewars were installed about 27 years ago. These are non- pressurisable and flat glass

bottom type LN2 Storage Dewars. Out of two numbers of 1 million liters Dewars, one

Dewar is not in working condition and is unserviceable. The performance of other 1

million liters Dewar has deteriorated over a period of time. In the view of this, it is

necessary to dismantle existing LN2 Storage Dewars in phased manner and install new

pressurisable type LN2 Dewars along with its accessories under Buy back scheme.

Design, Fabrication, Supply, Installation, Testing and Commissioning of the Following

items are under the vendor’s scope of supply as per the specification.

1. Liquid Nitrogen Storage Dewars Along with Gaseous Nitrogen Generation Unit

2. Vaporizer.

3. Gaseous Nitrogen System with accessories including Gaseous Nitrogen Tank

and pipelines.

4. Rigid Super Insulated Vacuum Jacketed Liquid Nitrogen Transfer line.

Specification:

1.0 Liquid Nitrogen Storage Dewars Along with Gaseous Nitrogen Generation Unit,

Qty: 04 Nos.

1.1 General

1.1.1 Gross capacity ≥ 2,40,000 Liters

1.1.2 Net Capacity 95% of gross capacity

1.1.3 Vapour Space 5% of gross capacity

1.1.4 Configuration Vertical with supporting legs

1.2 Inner Vessel

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1.2.1 Design & Manufacturing code or

standard

(i) ASME-SEC. VIII DIV-1 or EN

13458 or equivalent

(ii) Cold stretch is also acceptable.

1.2.2 Maximum allowable working pressure ≥ 10 kg/cm2 (g)

1.2.3 Design temperature -196 degC to +35 degC

1.2.4 Design pressure As per code /standard

1.2.5 Hydraulic test pressure As per code /standard

1.2.6 Insulation for inter space Perlite under vacuum

(Note: Super insulated Dewar is not

acceptable)

1.2.7 Static evaporation % loss per day ≤ 0.3 % per day based on an ambient

temperature of 20 degC when filled to

design capacity with saturated liquid

nitrogen at atmospheric pressure.

1.2.8 Material of construction ASME SA 240 TP 304/304L or equivalent.

1.2.9 X-ray 100% radiography for all welding joints as

per code.

1.2.10 Helium leak test 1. Individual leak rate of each joints

≤ 1x10-8 mbar l/s (He)

2. Overall Leak tightness of ≤ 1x10-6

mbar l/s (He)

1.2.11 Surface treatment Degreased

1.2.12 Filling/Withdrawal Provision (i) One top filling and one bottom

filling of line size ≥1.5” NB.

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(ii) Two independent bottom

withdrawal of line size ≥1.5”

NB.

1.3 Outer Vessel

1.3.1 Design & Manufacturing code or

standard

ASME-SEC. VIII DIV-1 or EN 13458 or CGA

341 or equivalent

1.3.2 Operating pressure Vacuum

1.3.3 Operating temperature -20degC to +50degC

1.3.4 Outer Diameter ≤ 5050 mm

1.3.5 Height Total height from the ground level ≤

21000 mm

Vessel height ≤ 19500 mm

1.3.6 External surface finish Mechanical cleaning and shot blasting

suitable for high quality and durable

painting purposes.

1.3.7 Primer/Intermediate/Final painting Two coats of epoxy based polyurethane

paint.

1.3.8 Material of Construction Carbon Steel ASME SA 516

Gr. 60/70 or equivalent.

1.3.9 Corrosion allowance As per standard

1.4 Interspace pipe works Inter space pipe material shall be

seamless ASME SA312-304/304L or

equivalent

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1.5 External pipe and valves External pipes and valves & fittings for

storage Dewars as per the schematic

diagram given in the Annexure-I

(Note: LN2 filling and withdrawal lines

should be super insulated lines. However,

valves may be Non Vacuum jacketed).

Material:

(i) Pipe: ASME SA 312 T 304/ equivalent

(ii) Valves: Bronze body with stainless

steel internals or equivalent

1.6 Accessories

1.6.1 The Dewar shall be provided with various valves, interconnecting pipe lines

between vaporizer and Dewar, safety devices, pressure gauge, pressure

transmitter, liquid level gauge, liquid level transmitter, flow meters, pressure

regulators (Settable) and inbuilt pressure building unit etc., as per the schematic

diagram enclosed in the Annexure-I. However , vendor has the liberty to modify

the scheme to meet the standards.

1.6.2 The pressure building unit (PBU) shall be sized for each Dewar withdrawal rate

of better than 400 Nm3/hr at 10 bar for 12 hours service per day.

Dewars De-pressurization: Tank de- pressurization must be carried out by a

remotely controlled control valve using the controller in addition to a local

manual valve available on each Dewar.

2.0 Vaporizer

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2.1 Quantity: 2 Nos. ( 1 working +1 Standby ). These vaporizers are in addition to the

inbuilt pressure building unit of the Dewars.

2.2 Type: Natural draft ambient air vaporizer with aluminium finned constructions and

vertical mounted type.

2.3 Application: For generation of Gaseous Nitrogen (GN2) from Liquid Nitrogen(LN2)

stored in LN2 storage Dewars.

2..4 Capacity:≥4000 Nm3 /hr each vaporizer.

2.5 Fluid media: Liquid Nitrogen (LN2)

2.6 Fluid (LN2) inlet temperature to the vaporizer: -196 deg C

2.7 Fluid (LN2) outlet temperature to the vaporizer: ≥ 15 deg C or 10 deg C lesser than

ambient.

2.8 Operating Atmospheric condition: Ambient temperature about 21 deg C and RH

about 70% .

2.9 Operating pressure: ≥ 20 bar (g)

2.10 Design Pressure: ≥ 22 bar (g)

2.11 Pneumatic test pressure: ≥ 25 bar (g)

2.12 Design temperature: -196 deg C to > +50 deg C

2.13 GN2 flow meter of suitable range shall be provided at the outlet of the each

vaporizer.

2.14 Safety relief valves as per the norms.

2.15 Regulators: As per the flow ratings and operating pressure in the circuit.

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2.16 GN2 withdrawal valve: Vaporizers bank must be provided with a GN2 withdrawal

valve for connection to the GN2 Storage tank of capacity 30 kL operating at 10

kg/cm2.

2.17 Duty cycle at 21 deg C and 70% RH: Continuously for minimum of 12 Hours at the

rated capacity condition before defrosting.

2.18 Design Standard: ASME Code Sec VIII & Div 1, Pressure vessel code or Equivalent

standard without U-stamp.

2.19 Inlet end connections: As per design requirement.

2.20 Outlet end connections: As per design requirement.

2.21 Cleaning duty Level: Oxygen

2.22 Material of Construction:

(i) Fins and Tubes: SB221-6063-T5 Aluminium or Equivalent

(ii) Flanges: SB221-6061-T6 Aluminium or Equivalent

2.23 Dimension of the Vaporizer:

(i) L= As per the design requirement.

(ii) W= As per the design requirement.

(iii) H= As per the design requirement.

2.24 Foundation leg: Foundation foot print drawing and other foundation requirement

shall be given along with the quote to facilitate the making of the foundation for

the vaporizer.

2.25 Lifting hooks: Lifting hooks should be provided at the appropriate locations of the

vaporizer to facilitate lifting/unloading and installation.

2.26 Scope of Work: All Civil works including foundation works, Installation and

commissioning.

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2.27 Scope of Supply: It includes the GN2 distribution lines with GN2 supply valves,

pressure regulators and pressure relief valves as per the layout.

3.0 Gaseous Nitrogen System with accessories including Gaseous Nitrogen Tank and

pipelines

3.1 Quantity: 1 No

3.2 Application: For storage of Gaseous Nitrogen (GN2) from Liquid Nitrogen(LN2)

stored in LN2 storage tanks.

3.3 Capacity: ≥30 kL

3.4 Fluid media: Gaseous Nitrogen (GN2)

3.5 Operating Atmospheric condition: Ambient temperature about 21 deg C and RH

about 70% .

3.6 Maximum allowable working pressure: ≥ 10 kg/cm2 (g)

3.7 Pipe Lines: Non- Insulated GN2 pipelines , Size: 6”

3.8 Scope of Supply: Design , fabrication and supply of Gaseous Nitrogen System with

accessories including Gaseous Nitrogen Tank and pipelines.

4.0 Rigid Super Insulated Vacuum Jacketed Liquid Nitrogen Transfer line

S.I pipe:

Size: 3 Inch (ID)

Pipe Length Quantity Required

5.8 m 10

4.8 m 10

3.8 m 10

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1.8 m 20

0.8 m 20

S.I. Elbows

Size: 3 Inch (ID), Qty: 10 nos.

S.I. ‘Tee’s

Size: 3 Inch (ID), Qty: 10 nos.

5.0 PLC based control system and instrumentation panel with manual over ride option

shall be provided for automatic control of the tank pressure and for automatic

change over between the atmospheric vaporizer with complete display of all

operational parameters in a control room located in the second floor at a distance

about 200 meters from the tank. Pressure and level transmitter with associated

accessories shall be provided for monitoring tank level and control of pressure

remotely from the control during the tank use (filling/withdrawal).

However, valves and others accessories, if any required for automatic control and

operation shall be provided by the vendor.

Also, a separate gauge board for parallel monitoring of tank pressure, liquid level,

LN2 flow rate, GN2 flow rate, GN2 temperature at the vaporizer outlet shall be

provided in a control room located in the second floor at a distance about 200

meters from the tank.

Vendor has to provide the complete P-I Diagram along with the quote.

6.0 Vent lines and LN2 overflow lines shall be safely routed to convenient locations.

7.0 The tank should be protected with rust preventing primer after shot blasting and

then painted with two coats of final polyurethane painting.

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8.0 The evacuation pipe should be fitted with a seal off pug and a protective cover.

The necessary tools required for re-evacuation shall be supplied for the future

maintenance /servicing.

9.0 The Pirani or thermocouple type vacuum gauge with meter shall be provided for

measuring interspace vacuum level and should be with a protective cover.

10.0 The safety valves on outer vessel should be protected with a protective cover.

11.0 All the safety valves should be pre-set to the required pressure.

12.0 All the operational valves, instruments, end coupling should be conveniently

located from operation and maintenance point of view.

13.0 The tank should be provided with lifting hooks at the convenient locations.

14.0 Inspection, Installation, acceptance tests and Documents.

14.1 Vendor has to submit detailed QA/ project plan at the time of order

acknowledgement for our review. Vendor also has to present the proposed design

and complete technical details of the tank installation to ISRO before going ahead

with the fabrication.

14.2 All the end connection/coupling/flanges/valves, regulators etc., should be of

International standards and the approval for the same should be obtained from

ISRO.

14.3 All the items listed in Annexure-III should be of Internationally reputed brands and

model and approval for the same should be obtained from ISRO.

14.4 Procedures and checks prior to start up shall be carried out in-situ.

14.5 Pre delivery inspection of the tank at supplier’s premises will be carried out by our

Engineer.

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14.6 Installation of LN2 storage tanks shall be carried out in-situ. Vendor has to make

arrangements for all handling provisions for the movement and positioning of the

tank and accessories at the location identified.

14.7 The following acceptance tests shall be carried in-situ by the supplier:

(i) Vacuum retention test.

(ii) Cool down test.

(iii) Vaporizer capacity check.

(iv) Evaporation loss test.

(v) Insulation effectiveness test 9 outer vessel temperature monitoring

when the inner vessel in under LN2 and it should not be less than

ambient minus 5 deg C.

(vi) Safety device checks.

(vii) Operational checks.

(viii) Instrumentation checks.

14.8 Periodical inspection of the vessel during the period should be carried out by the

suppliers.

14.9 All the mandatory requirements for the static cryogenic pressure vessels (Unfired)

design, supply, installation and operation should be followed. Mandatory

clearance from C.C.O.E/PESO Nagpur for the entire installation including the layout

proposed as enclosed shall be obtained from the supplier. Static and mobile

Pressure Vessels (Unfired), Latest SMPV (Amendment) Rules and Rules 1981

(Principal Rules issued by ministry of commerce and industry (dept. of Industrial

policy and promotion) should be adhered to by the supplier.

Tentative layout drawing of size 40mx 21m for the purpose of obtaining

C.C.O.E/PESO clearance is attached in the Annexure-II. However, vendor has the

liberty to modify the drawing in consultation with ISRO for obtaining C.C.O.E/PESO

clearance.

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14.10 Dismantling should be done in two phases as the availability of 1 no of 1 ML

Dewar shall be ensured for conduct of test in LSSC anytime. In case PESO does

not agree for phased manner installation and commissioning in the same layout

area, installation shall be carried out in such a way that complete installation and

commissioning shall be completed within 3 months from the date of dismantling

of second 1 ML liquid nitrogen Dewar.

14.11 2 Sets of documents containing the following to be submitted along with the

supply:

(i) Operation and maintenance manual for both vaporizer and the tanks.

(ii) Approval letter along with the approved drawings from C.C.O.E/PESO

for inner vessel.

(iii) Original copy of Rule 18, Rule 19 and C.C.O.E/PESO license.

(iv) Certificate from third party inspection agency for inner vessel.

(v) Mechanical properties test report of materials used for inner and outer

vessel.

(vi) Certificate of safety valve, pressure gauge and level gauge.

(vii) Material composition certificate for both inner and outer vessels from

government authorized material testing lab.

(viii) Hydraulic pressure test certificate.

(ix) Calibration test certificate for flow meter, gauges and transmitters.

15.0 Guarantee:

Dewar and its complete accessories should be guaranteed for trouble free

operation against defective material and workmanship for a period of 12 months

from the date of Commissioning and Acceptance.

16.0 Site inspection prior to quote:

Vendor can inspect the proposed site for installation to estimate the approach,

handling and positioning and also the condition of the soil for design of the

foundation.

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17.0 Inclusions (In the scope of supply of vendor):

17.1 Civil Works required for installation of 240 kL LN2 Dewars

17.1.1 All the civil works required for the foundation including necessary earthing pit

and earthing work as per requirement of SMPV rule and mobile crane facility

with all handling provisions for unloading and erection of the Dewar are in the

scope of the supply.

The civil work shall include design and complete realization of proposed

foundations with all material and labour required for

(i) Dismantling existing structure up to proposed foundation level.

(ii) Excavation where ever required.

(iii) Rerouting of service line if any.

(iv) Grouting of sub base below the existing raft.

(v) Any anchorage required between old and new foundation for stability of

new foundation.

(vi) Construction of new foundation, pedestals with insert plates bolts etc.

(vii) Construction of retaining wall between foundations to take up

the work in phased manner.

(viii) Backfilling and compaction in layers with approved material up to

formed ground level.

(ix) Finishing ground level with 100 mm thick concrete for the entire area at

top etc, all complete including disposal of debris.

(x)Any other civil work required for the completion of project.

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Vendor has to submit detailed design, drawing, calculations, for approval before

execution. The foundation shall be designed considering maximum safe bearing

capacity of soil as 20 T/m2 at a depth of about 2.2 m from ground level.

17.1.2 Third party inspection in the scope of supply.

17.1.3 All arrangement required for C.C.O.E/PESO inspection and certification,

acceptance tests and demonstration of performance of the installation shall be

carried out by the vendor till the final acceptance of the Dewar and its accessories

by ISRO.

17.1.4 All the pipelines, its supports, Anchoring, foundation, if any required shall be

provided by the Vendor.

17.2 For dismantling of 2 Nos of 1 ML LN2 Dewars

17.2.1 Site inspection should be done by the vendor before starting the work, also entry

and exit point should be decided for bringing items in side/taking scrap items

outside the URSC premises. The procedure for dismantling of Dewars has to be

submitted by the vendor along with the quote.

17.2.2 The job of dismantling work involves removal of insulation material (perlite, Foam

Glass etc.). Vendor shall be fully responsible for clearing and disposal of perlite in

a safe manner as per applicable norms. A suitable procedure has to be followed by

the vendor for removal of Insulation material. Plan of removal and disposal of

perlite has to be submitted by vendor along with the quote.

17.2.3 Removal of Outer vessel and its accessories (safety valves, control and

instrumentation).

17.2.4 Removal of inner vessel and its accessories (safety valves, control and

instrumentation).

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17.2.5 Items pertaining to safety, control and monitoring instrumentation to be removed

and handed over to ISRO prior to commencement of de-commissioning activities.

17.2.6 The removed material pertaining to inner and outer vessel shall be removed from

the site leaving the concrete base and columns intact. However , vendor has the

liberty to decide whether the existing concreate base and columnscan be used

with some modifications of , it has to be removed completely.

17.2.7 Dismantling of 2 Nos. of 1 ML liquid nitrogen Dewars shall be done in such a way

that the no items which shall hinder the spacecraft movement or movement of

liquid nitrogen Dewars should be kept in the route during installation.

17.2.8 Disposal and transportation of all the dismantled items shall be done by the

vendor.

17.2.9 Layout drawing of existing 2 Nos. of LN2 storage is attached in Annexure-IV.

18.0 Exclusion:

18.1 LN2 required for the acceptance test for one time will be arranged by ISRO.

However, if there is any fault in the tank decanting to alternate provisions and

LN2 refiling to the original level required for the test is in the scope of Vendor.

18.2 Services provided by ISRO during installation and commissioning

18.2.1 Pneumatic supply @ 6 Bar (g) pressure for operation of the system will be provided

by ISRO at one point near to the storage area from where necessary extension and

distribution up to the equipment shall be arranged by the vendor.

18.2.2 Electric Power supply of single phase, 50 Hz 230V / 3 phase, 50 Hz 440V AC will be

provided by ISRO at one point. Necessary extension board and cord shall be

arranged by the vendor.

18.3 Hard standing and fencing work will be done by ISRO and not in the scope of

supply.

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19.0 Essential spares ( To be quoted separately-Optional)

Vendor shall quote for the essential spares as per the following list. However, the

vendor can also propose as an option list of additional essential spare parts

considered necessary for 10 years operation of the Dewar as an option. Quote for

spare will not be considered for finalizing the commercially lowest vendor (L1)

as ISRO is at liberty to decide on the type and quantity of essential spares after

warranty period also.

(i) Safety pressure relief valve on each Dewar -2 Nos.

(ii) Bursting disc on each Dewar -2 Nos.

(iii) Pressure regulator on each Dewar- 2 Nos.

(iv) Digital Level gauge on each Dewar – 1 No.

(v) Differential digital pressure gauge on each Dewar – 1No.

(vi) Cryogenic globe valve – 4 Nos. (1 no. on each Dewar)

(vii) Flow control valves of each type used for vaporizer – 2 Nos.

(viii) GN2 digital flow meter on each Dewar – 1 No.

(ix) LN2 digital flow meter on each Dewar– 1 No.

(x) LN2 check valve (≥1.5”) on each Dewar – 2 Nos.

(xi) GN2 check valve on each Dewar (≥2”) – 2 Nos.

20.0 Vendor should ensure the complete safety of the existing nearby LN2 Dewars and

other LN2 equipment during foundation civil works, erection and installation.

However, if any damage caused to existing Dewars and its accessories, vendor is

liable to pay compensation for the damage incurred.

21.0 Supplier’s experience and Heritage

21.1 The vendor shall have experience of fabricating and supplying similar or higher

capacity liquid nitrogen storage Dewars for a minimum period of 5 years. The

vendor shall submit along with the offer, the necessary technical details like PO

copy, specification and scope of work etc., to substantiate their experience.

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21.2 The supplied LN2 Dewars should have a proven heritage for at least three years

after installation and commissioning. Details of LN2 Dewars, Year of supply,

acceptance/performance report and the customer details like organization, end

user division/group and contact telephone/email address shall be provided along

with offer.

21.3 The vendor shall be Original Equipment Manufacturer (OEM) of the Dewar and

proof for the same shall be enclosed.

21.4 The vendor shall manufacture the storage Dewar at fabrication shop which should

be recognized as an approved manufacturer of unfired pressure vessel in

accordance with SMPV (U) rules by department of explosive, Nagpur. However,

imported storage Dewars are also acceptable subjected to submission of NOC from

Chief Controller of Explosive (CCOE)/PESO, Nagpur. A confirmation and

documentary proof in this respect shall be submitted along with the quote.

22.0 Documents to be submitted along with the technical bid (Part-1)

(i) Complete P&I diagram.

(ii) Complete dismantling plan of 2 Nos. of 1ML existing Dewars.

(iii) Procedure for removal and disposal of perlite.

(iv) Foundation details /design drawing for the Dewars, Pressure Building

Unit (PBU) and Vaporizer.

(v) Scheme for erection and installation of the Dewar.

(vi) Supporting documents for heritage and experience.

(vii) Catalogue /leaflets for Dewars and vaporizers.

(viii) Make and model No. detail for the components /equipments as per the

format given in the Annexure-III.

23.0 INSTRUCTION TO VENDORS FOR SUBMITTING OFFER

Offer shall be submitted in two parts as following;

(i) Part-1 is “Techno-commercial part (without price details)” and

(ii) Part-2 is “Commercial part (Price offer)”.

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23.1 Part-1 : Techno-commercial part (without price detail both in figure and word)

shall include the following:

23.1.1 The technical compliance statement should be given in point-wise for all of our

specification from 1.0 to 22.0. Merely writing “Complied” against each of the

specification points is not sufficient. Instead the exact numerical values and

relevant technical information supporting documents shall be enclosed such as

product catalogue , data sheet etc.

23.1.2 One copy of commercial part without any price details.

23.2 Part-2: Commercial part (Price offer) shall include the following:

23.2.1 Cost of LN2 Dewars with all its accessories.

23.2.2 Cost of dismantling and disposal of the 2 Nos. of 1 million LN2 Dewars along with

its accessories.

23.2.3 Cost of scrap value of the 2 Nos. of 1 million LN2 Dewars along with its accessories.

23.2.4 Break-up cost of spares as listed u/s 19.

23.2.5 Final price under Buy Back Scheme.

(Offers without Buy Back scheme price will not be accepted.)

24.0 Pre Bid Meeting-There will be pre bid meeting before the submission of the quote.

During pre-bid meeting clause no 17.2.1 and 17.2.2 will be discussed. Vendors who

will not attend the pre-bid meeting are not eligible to quote.

25 Delivery Schedule

(In a Phased manner. Two LN2 tanks per phase)

25.1 1St Phase - Removal of 1 No. of 1 ML LN2 tank and installation of 2 Nos. of 240 kL

LN2 tank.

25.1.1 T0= Placing the order

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25.1.2 T1=T0+1.5 months = For dismantling and removal of 1 no. of 1 ML tank.

25.1.3 T2=T1+1.5 months = For PESO layout Clearance.

25.1.4 T3=T2+2 months = Submission of Final Detailed Design Review Document (FDDR).

25.1.5 T4=T3+1 month = Clearance of FDDR by URSC/ISRO.

25.1.6 T5=T4+3 months = Foundation Preparation and Delivery of first two Tanks.

25.1.7 T6=T5+3 months = Installation, CCOE approval from PESO and Commissioning.

25.1.8 Total 12 months from the date of placing the Purchase order.

25.2 2nd Phase - Removal of 1 No. of 1 ML LN2 tank and installation of 2 Nos. of 240 kL

LN2 tank.

25.2.1 T6= Ready for 2nd phase ( After completion of 1st phase only and subjected to

clearance from URSC)

25.2.2 T7=T6+1.5 months = For dismantling and removal of 1 no. of 1 ML tank.

25.2.3 T8=T7+1.5 months = For PESO layout Clearance.

25.2.4 T9=T8+2 months = Submission of Final Detailed Design Review Document (FDDR).

25.2.5 T10=T9+1 month = Clearance of FDDR by URSC/ISRO.

25.2.6 T11=T10+3 months = Foundation Preparation and Delivery of remaining other two

Tanks.

25.2.7 T12=T11+3 months = Installation, CCOE approval from PESO and Commissioning.

25.2.8 Total 12 months after the Installation, CCOE approval from PESO and

Commissioning of the 1st phase.

25.3 Total time required for completion of both the phases will be 24 months from

the date of Placing the Purchase order.

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26 Payment Terms

Note: It is based on the Total landed cost at URSC including buyback price.

26.1 Millstone Payment

26.1.1 1st phase

26.1.1.1 “10% of the P.O. value excluding installation and commissioning charges” as

advance payment shall be released against Bank Guarantee (BG) after obtaining

layout clearance from PESO and completion of final Detailed Design Review (FDDR)

as mentioned in the delivery schedule.

26.1.1.2 “30% of the P.O. value excluding installation and commissioning charges” and

“taxes as applicable” shall be released within 30 days against receipt of the 2 Nos.

of LN2 storage tanks at U R Rao Satellite Centre for the 1st phase as mentioned in

the delivery schedule.

26.1.1.3 “Balance of 10% payment of the P.O. value shall be released after installation and

commissioning” together with “Installation and Commissioning charges and taxes

as applicable” for the 1st phase as mentioned in the delivery schedule.

(i.e. Total 50% payment of the P.O. value and taxes as applicable for the 1st phase

completion shall be released within 30 days)

26.1.2 2nd phase

26.1.2.1 “10% of the P.O. value excluding installation and commissioning charges” as

advance payment shall be released against Bank Guarantee (BG) after obtaining

layout clearance from PESO and completion of final Detailed Design Review (FDDR)

as mentioned in the delivery schedule.

26.1.2.2 “30% of the P.O. value excluding installation and commissioning charges” and

“taxes as applicable” shall be released within 30 days against receipt of the

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remaining other 2 Nos. of LN2 storage tanks at U R Rao Satellite Centre for the 2nd

phase as mentioned in the delivery schedule.

26.1.2.3 “Balance of 10% payment of the P.O. value shall be released after installation and

commissioning” together with “Installation and Commissioning charges and taxes

as applicable” for the 2nd phase as mentioned in the delivery schedule.

( i.e. Remaining 50% payment of the P.O. value and taxes as applicable for the 2nd

phase completion shall be released within 30 days.)

Annexure-III

Sl.

No.

Item Description Make Model No.

1 Cryogenic Valve

2 Flow Control valve (EPT)

3 Safety Valve

4 3 Way Diverter Valve

5 Cryogenic Pressure

regulator

6 Bursting Disc

7 Differential Pressure

gauge

8 Pressure gauges

9 Vacuum gauges

10 Level transmitter

11 Pressure transmitter

12 LN2 Flow meter

13 GN2 Flow meter

14 Vaporiser