Specification Document Annexure-1 Procurement of Liquid Nitrogen Tank- ITK S-3502

IPRC ISRO PROPULSION COMPLEX, MAHENDRAGIRI

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TECHNICAL SPECIFICATION

1. SCOPE OF WORK The overall scope of work comprises

Design, Detail engineering, sourcing of raw materials and bought-out flow components & instruments including ejector, safety relief valve/Rupture disc with three-way manifold valve and other associated components and Supply of Instrumentation Boom.

Fabrication, testing, in-house inspection engaging Third Party Inspection Agency and ASME ‘U’ Stamp by Authorized Inspector

Transportation of Vertical Cryogenic tank for Liquid Nitrogen Service to IPRC Mahendragiri,

2. DESIGN DATA

2.1 Cryogenic Vessel: LIN Tank

2.1.1 Tag number for tanks : ITK S-3502 2.1.2 Fluid medium : Liquid Nitrogen (LN2) 2.1.3 Orientation of Tank : Vertical 2.1.4 Type of Tank : Cylindrical with 2:1 Ellipsoidal

ends 2.1.5 Gross (geometrical) volume/ Water capacity (WC) : 100 m3 2.1.6 Usable volume (Gross volume – Ullage volume) : 90 m3

2.1.7 Inner Diameter of inner vessel : 3 m (approx.) 2.1.8 Height of inner vessel : 13.2 m (approx.) 2.1.9 Maximum Expected Operating Pressure(MEOP) of : 0.8 MPa(a)

2.1.10 Maximum Allowable Working Pressure (MAWP) 1.0 MPa(a) 2.1.11 Minimum Working Pressure of inner vessel : 0.014 MPa(a), Vacuum 2.1.12 Working temperature of inner vessel at design : 70 – 350 K

2.1.13 Design Temperature of inner vessel : 350 K 2.1.14 Design Temperature of outer vessel : 350 K 2.1.15 Working temperature of outer vessel : 290 to 350 K 2.1.16 External Overpressure for Outer Vessel : 0.13 MPa over atmospheric

pressure 2.1.17 Permissible evaporation loss rate

Note: To be confirmed by the results of calculations during Detail engineering review and demonstrate as part of performance test.

: 0.1 % of net capacity per day at 30₀C ambient temperature.

2.1.18 Design and Construction Code : ASME Sec. VIII Div. 1. Thickness as per UG-27, ASME Sec. VIII Div. 1, with allowable stress values as per ASME Sec. II-Part D, without applying note G5. Allowable stress: 95 MPa. 2.1.19 Design Wind Speed : 200 Km/hr

2.1.20 Design Wind pressure and force : As per IS-845 (Part-3) 2.1.21 Seismic zone : Zone 3 of IS 1893. Factor Ah shall

be minimum 0.2. 2.1.22 Liquid Expulsion flow rate from tanks during usage. : 5 kg/s LN2

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2.1.23 Type of thermal insulation : Evacuated Multilayer Insulation (SI) like combination of Glass paper (Lyndall) & Aluminum foil with vacuum insulation. Aluminized Mylar shall not be used for insulation.

2.1.24 Stable Vacuum pressure in the jacket (at atmospheric temperature)

: Better than 10-2 mbar

2.1.25 Permissible leakage rate across inner and outer vessels.

: 1E–9 Pa.m3/s (1xE-8 mbar-l/s)

2.1.26 Fatigue life (considering thermal and pressure cycle) of tank.

: Elastic Stress Analysis (Article 5.22 of ASME Sec. VIII Div.-2) with ANSYS Work-bench including support/pedestal, considering all loads including wind/seismic, Fatigue life cycles is to be arrived with ASME Sec. VIII Div. 2, considering the max. Stress obtained from Elastic stress analysis, it shall be designed for Min. 8,000 cycles.

2.1.27 Expected periodicity of re-evacuation Once in 5 years (to be confirmed during Detail engineering review by the supplier)

2.1.28 Mode of Sub-cooling : With Ejector 2.1.29 Stamping on Tanks : ‘U’ Stamp as per ASME Code

2.2 Ejector IEJ-S 3501

Quantity 2 Nos. Suction Gas : Liquid Nitrogen vapours Drive Gas : Gaseous Nitrogen Stagnation Temperature of suction gas : 70-77 K Stagnation Temperature of drive gas : 300 K Stagnation pressure of drive gas : 1.0 MPa Sub-cooling Duration : 2 hours Suction gas flow rate 0.75 kg/s Temperature of bath after Sub-cooling : 70 K Nozzle Diameter for suction gas on LIN Tank** : DN300 Feed line diameter for drive gas** : DN100 The Supplier shall carry out detailed design of ejector system and obtain the approval of Department, as part of Detailed Engineering. After approval by Department the Contractor shall start the fabrication of ejector system. ** The sizes are preliminary. The geometric properties for vessel nozzles and ejector shall be finalized during Detailed Engineering.

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2.3 Safety Relief Valves/Burst Disc

The supplier shall provide two sets of Rupture Disc for protection against fire-engulfment and safety relief valves in series with Rupture disc sized for Vacuum failure case, for safeguarding the LIN vessel ITK-S 3502 with a flow diverter valve.

The Rupture disc shall be with vacuum support to support vacuum on upstream and positive pressure on downstream and ensure leak tightness when subjected to vacuum on upstream side.

Suggested sub- vendors for Safety Relief Valve: 1. Tyco Sanmar Ltd., Chennai 2. FaingerLesser Valves Pvt Ltd., Mumbai 3. Anderson Greenwood & Co. Texas, USA 4. Crossby Valve &Engg. Co. Ltd., England

Suggested sub- vendors for Rupture Disc: 1. BS&B System (India) Ltd., Chennai 2. M/s Fike Corporation, USA

The supplier shall submit the sizing of Safety relief valve/Rupture Disc for approval of Department.

Tag number for Safety Relief Valve shall be IVR S-3501 and IVR S-3502. Tag number for Rupture Disc shall be IBD S-3501, IBD S-3502, IBD S-3503 and IBD-3504. The safety block shall be provided with an Excess flow valve IEV S-3501 and IEV S-3502. The system shall be designed for Vacuum failure and fire-engulfment case. The tentative specification sheet of SRV and Burst Disc is given in Annexure-2.

2.4 Three-way Manifold Valve ITVM-S 3502

The supplier needs to supply a three-way manifold manual valve ITVM-S 3502, as per Fig. 1: LIN Tank P&ID for connecting to Safety relief valve/Rupture Disc set.

Valve Tag no.

Pattern

Type Port Way

Body and Bonnet Material

Fluid Medium

Working Temp (K)

Size (DN)

MAWP (MPa)

Pressure Rating Class

Minimum Cv

ITVM-S 3502

Globe

BS, ES

3/2 A182 F304L

GN2 70-350 Area=Burst Disc size

1.0 150 Area=Burst Disc size

The size of the valve shall be confirmed during Detailed Engineering Review, based on sizing of Safety Relief Valve/Rupture Disc. The valve shall be supplied from a reputed manufacturer, after confirmation from department.

2.5 Specifications for Field Instrumentation items like: Level Transmitters (ILI) Temperature Transmitters (ITI). Surface Temperature Indicator (ITC).

Specification documents along with their mounting requirements are furnished in Annexure-3. Vendor shall study the details & furnish the required information and comply in their Technical bid.

DN100 size nozzle shall be provided in inner vessel for mounting temperature transmitter boom. 3-temperature transmitters as shown in “Fig.-1 LIN TANK_P&ID” shall be fixed on DN80 pipe and shall be mounted on inner tank. Connection from transmitter boom shall be taken through vacuum feed connector.

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3. MATERIAL OF CONSTRCTION

Inner vessel : ASTM A 240 304L or equivalent material

Outer vessel : ASTM A 515 / 70 or ASTM A516 Gr. 70 or equivalent material

Nozzle Pipes : ASTM A 312 TP 304L (Seamless pipe for nominal pipe size ≤ DN250; Longitudinal seam-welded pipe with full radiography for nominal pipe size ≥ DN300)

Pipe fittings : ASTM A 403 WP 304L/ 316L

Flanges : ASTM A 182 F 304L/ 316L/ 321

Bolts : ASTM A 320 B8

Nuts : ASTM A 194 8

Lifting Lug : ASTM A516 Gr.70

Skirt/saddle supports : ASTM A516 Gr.70

Name plate / bracket : SA 240 Gr. 304L

Note: Cold stretched/ pressure strengthened material should not be used.

4. CONFIGURATION DETAILS 4.1 The inner vessel of the LIN tank ITK-S 3502 shall be designed considering MAWP + Liquid

static head and also for vacuum (considering vacuum pressure in the outer jacket).

4.2 * The tanks shall be of vertical configuration with cylindrical shell and 2:1 ellipsoidal ends.

Tag No. Description Inner Dia.

(mm)

Thick (mm)

Shell Dish

ITK-S 3502 LIN Tank 3000 18 20

However, the diameter and thickness shall be confirmed by results of calculation during Detailed Engineering.

4.3 The tanks shall be provided with suitable legs/ saddle for supporting the tank and grouting to the foundation. The foundation bolts, nuts and washers required for fastening the tanks to the foundation shall also be provided.

4.4 The tanks shall be provided with suitable lifting lugs for handling.

4.5 The fill/ drain port of the tanks shall be provided with suitable anti-vortex baffles.

4.6 The pressurization and vent ports of the tanks shall be provided with diffuser. The flow area of diffuser holes shall of 3 times the inlet pipe area.

4.7 All the nozzles of DN 50 and smaller sizes shall be suitably stiffened with gusset plates, as per code requirements.

4.8 Suitable earthing bosses shall be provided for protection against lightning and static electricity.

4.9 The required size of different nozzles (N1 to N6) in tanks is specified in the Fig 2: GA Drawing. Blank-off flange for all the nozzle shall be supplied along with metal gasket, with

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pressure rating suitable for the MAWP of the tank.

The sizes of nozzles shall be confirmed during Detailed Engineering Review.

4.10 Filler wire used for welding shall conform to the code requirements.

4.11 All the nozzles in the tank shall be provided with blank off flanges, bolt & nuts and gaskets with pressure rating suitable for MAWP of tank.

4.12 Cold stretching of tank is not allowed.

4.13 Tank shall be provided with one local level gauges of DP type. Range shall depend on height of tank, accuracy shall be ±0.5% of full scale and dial size shall be 150mm.

General Notes:

a. All flange bolt shall straddle normal to central line of vessel unless otherwise stated. b. All flange gasket face machined with 3.2 to 6.4 µm (Ra 125 to 250 AARH) c. Hydro-testing gasket shall be same as gaskets are the same type used in service. d. Unless otherwise indicated nozzle projection measured from vessel centre & T.L. e. All longitudinal & circumferential seam clear nozzle opening reinforcing pads when the

covering of circumferential seam by reinforcing pads is unavoidable, ground the seam flush, examine it, test it prior to welding the reinforcing pads in place.

f. Coat all machine surface, subject to atmospheric corrosion, with heavy rust preventive grease. g. Pickling, passivation shall be done for all SS materials. h. Fatigue analysis as per ASME Sec. VIII Div. 2 shall be carried out.

5. FABRICATION The inner vessels shall be designed and constructed in accordance with the Boiler and Pressure Vessel (unfired) code ASME Sec. VIII Div. I or as per equivalent standards, provided minimum requirements specified in ASME Sec. VIII Div. I are compiled as per details given in clause 7.2.1. Allowable stress values as per ASME Sec. II Part D shall be calculated without applying note G5. Outer vessel shall be designed as per CGA 341.2002or equivalent.

5.1. Forming: All the forming works of the tanks shall be carried out by suitable forming process. After forming, the parts shall be suitably stress-relieved.

a. Forming and Heat treatment: As Per Design Code ASME Sec. VIII Div. 1 b. Prior to final inspection, all slag, grit, dirt, weld splatter, oil & other foreign matter to

be removed from inside & outside of vessel. c. All sharp corner to be rounded off radius of 3mm. d. All nozzle inside edges except nozzles with inside projection shall be flushed with

internal surface of vessel and rounded off with 3mm radius. e. Reinforcing pads shall be provided with 1 No. ¼” NPT Vent hole located at 45° off the

longitudinal axis of the vessel. Perform soap solution test with 0.7 bar (Minimum) with 15 bar (Maximum) gauge air prior to performing hydro-static testing.

f. TOE to TOE gap between nozzles & shell/heads welds are 50mm minimum & 2 times shell/ head thickness for carbon steel material & SS materials respectively.

g. Minimum distance between the staggered longitudinal seams of two adjacent courses shall be minimum 6times the shell thickness but not less than 100mm.

h. Grooves or notches in the base metal while chipping & grinding, gouging & repairing of welds is not allowed. Under cutting at the side of weldments is not allowed.

i. Fill all tapped holes on the re-pads with corrosion inhabiting grease. j. Remove temporary attachments by grinding or thermal cutting. After removal of

temporary attachments, remove the remains of the temporary welds by grinding. Examine the area by liquid penetrant method.

k. The dished ends (if fabricated from plates) shall be solution annealed after performing. l. All the plates used for dished & shell should have original mill heat number.

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m. All the nozzles in the tanks shall be provided with blank-off flanges, bolts & nuts and gaskets with pressure ratings suitable for MAWP of tank.

5.2. Welding: it is to be noted that the welding on stainless steel parts of entire inner vessel for the full thickness of the tank shall be carried out by Gas purged Tungsten Argon Welding (GTAW) with Gaseous Argon of 99.995 % purity as the purge medium. All the welding on carbon steel parts of the outer vessel of the tanks shall be carried out by Shielded Metal Arc Welding (SMAW)/Gas metal Arc welding (GMAW) process. a. Prior to commencement of welding on the tanks, welding procedure qualification and

welder’s performance qualification tests, in accordance with Section IX of ASME BPV code.

b. No welding is permitted after hydro-test. c. The dissimilar thickness to be joined with smooth transition of 1:3 taper (minimum) as

per code para UW-9 and UW-33. d. Unless otherwise specified, the fillet weld throat size for non-pressure parts to be 0.7

times of least thickness of parts to be joined. e. Ensure each layer of weld metal in multiple-layers welding is cleaned of slag and other

foreign materials before applying next layer. f. All the welds to be 100% dye penetrate tested for root welds and after completion of

final weld.

5.3. Inspection and NDE:

a. All welds joints shall be inspected on inside & outside, surfaces as per approved weld book UW-35, all welds shall be continuous.

b. Water used for hydro testing shall have chloride content <50ppm for ferrite metal & 30ppm for stainless steel materials.

c. Visual examination (internal & external) after completion of welding to check the compliance to UW-35 shall be performed for both long L seam (CAT.A) & Circumferential seam (CAT.B) welds.

d. Weldment of lifting lug shall be examined by surface method (magnetic or penetration). e. 100% radiography (2-2T sensitivity) examination shall be carried out for all butt joints on the

vessel, interconnecting pipelines & nozzles. f. DP test shall be carried out for all welds. g. Visual inspection shall be carried out for any surface defects for all materials. h. 100% ultrasonic testing shall be carried out for all nozzles pipes & plates as per ASTM/ ASME. i. Joints alignment & peaking in shell & head shell be considered as per ASME Sec. VIII Div. 2

clause 6.16.1 & 6.1.6.3 respectively. j. All weld joints shall be UT tested & weld surface shall PT/MT tested as per UHA-34.

5.4 Surface Treatment: The following procedure shall be employed for surface treatment of the tanks.

5.4.1. Cleaning of stainless steel surfaces: After fabrication, the interior and exterior surfaces of the inner vessel and the interior surfaces of the nozzles, interconnecting pipelines and flow components shall be cleaned, employing the following procedure:

a. Mechanical cleaning: All the metallic surfaces with scales and newly welded surfaces shall be cleaned by scrubbing with stainless steel metallic wire brush. The loose scales and particles obtained from mechanical cleaning shall be removed by blowing with dry air, sucking with vacuum cleaner or washing with water.

b. Degreasing: The surfaces shall be degreased to Oxygen service standard as per CGA G-4.1 (Compressed Gases Association Inc, USA) or MIL-C-52211 or ASTM G-93 or equivalent.

c. Pickling: In order to remove rusts and scales, the surfaces are pickled with a solution containing Hydro-fluoric acid (HF) and Nitric acid (HNO3). The composition of pickling

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solution and duration are to be adjusted after trial test on a sample piece to remove uniformly less than 25 m thick material. Mostly, the composition is as follows:

HF : 5 % (by mass) HNO3 : 15 to 20 % Water : Remainder

This is followed by rinsing with water. d. Passivation: In order to form a protective layer, the surfaces are passivated with a solution of

the following composition: HNO3 : 25 % (by volume)

Water : Remainder Duration : 2 h (minimum) This is followed by rinsing with De-Mineralized (DM) water. The bellows shall not be subjected to pickling and passivation.

e. Drying: The surfaces of the tanks shall be dried by purging with dry Air or Gaseous Nitrogen until the moisture content in the medium is brought down to 20 ppmv. Before transportation, all the openings shall be kept closed in order to avoid entry of any foreign particle inside the tank and the inner vessel be kept pressurized at 0.15 MPa(a) with Gaseous Nitrogen.

5.4.2 Cleaning of carbon steel surfaces 1. The interior and exterior surfaces of the outer vessel shall be sand–blasted and

mechanically cleaned. 2. Painting: The exterior surfaces of the outer tanks shall be painted with 2 coats of primer

(Zinc or Red oxide) and 2 coats of white color Poly Urethane (PU) or Epoxy paint. A color band of 200 mm width shall be painted circumferentially at the middle of the tanks. The color scheme shall be green for Liquid Nitrogen tank.

5.5 Materials: Materials for all permanent welded attachments to pressure parts shall be of the same grade as the shell materials, all internal welded attachments shall also meet the supplementary requirement applicable to shell plates.

5.6 Tolerance:

a. Codes required tolerances on vessel shall be as per code PARA-UG-80 (Shell) and UG-81 (Head) for out of roundness, UW-33 (alignment) UW-35 (reinforcement) while fabrication & welding. For other tolerance manufactured accepted tolerances shall be used with prior approval of Purchaser.

b. All STD. blinds & flange shall be procured with min. 1mm over tolerance on thickness 5.7 Transportation:

a. Flanges to be protected with 12.7mm thickness bolted wooden or3.2mm thickness stainless steel cover & secured with minimum 4 bolts before dispatch.

b. Coat all thread bolts, studs & nuts with metallic base, rust hinge inhabiting lubricant to prevent galling in used & corrosion during transportation & storage.

6. Vacuum Components and Instruments

1. The outer vessel of the tank shall be fitted with a vacuum safety device, at least two number of vacuum pump-out port cum seal-off valve and a suitable vacuum gauge head with isolation valve. The vacuum safety device shall be set to relieve at an internal pressure of 0.13 MPa(a) to 0.15 MPa(a). However, during normal period, the vacuum safety device shall withstand an external pressure of 0.1 MPa(a) with full vacuum inside.

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2. The LIN Tank ITK-S 3502 shall be provided with a provision for local level gauges of DP type, alongside the vessel through nozzle, as per Fig.1: LIN Tank P&ID. For mounting fluid temperature sensors and level switches, a flanged boom/suitable provision for mounting the instruments shall be provided into the inner vessel and it shall be sealed with the jacket through proper bellows, through appropriate nozzles.

7. TESTS The following tests are to be performed as per the standards mentioned therein. 7.1 Material certificates: The material test certificates shall be provided for all the principal and

pressure-bearing parts of the tank (including plates, nozzles, interconnecting pipes, flow components, etc.) to ascertain the physical and chemical properties, in addition to manufacturer’s test certificates. The sample from raw material shall be taken by TPI and tested at NABL accredited laboratory.

7.2 Ultrasonic test: All the plates, pipes, fittings, flanges, etc. used for the fabrication of inner vessel & outer vessel and the pipes used for the nozzles and interconnection shall be subjected to 100 % ultrasonic test using pulse-echo procedure, as per ASTM standards.

7.3 Radiographic test: All the (100 % of the) stainless steel butt weld joints on the inner vessel as well the nozzles, interconnecting pipelines, flow components, etc and 10 % of the butt weld joints on the outer vessel shall be subject to radiographic test with X-rays to 2-2T sensitivity.

7.4 DP Test: All the welds shall be subjected to DP test. It shall include minimum root weld and final weld.

7.5 Hydro-Pneumatic Pressure test: In lieu of hydraulic test, the vessel (in assembled form) shall be subject to pneumatic pressure test at a pressure as specified by the design code, but not lesser than 1.3 times the respective MAWP/ design pressure as per ASME Sec VIII Div.1. After the test, the moisture content in the tank shall be limited <200 ppm.

7.6 MSLD Leak test: a. Inner Vessel alone: Probe method @ 1E-9 Pa.m3/s. b. The leak tightness across the inner vessel as well as the outer vessel shall be tested with

Gaseous Helium Mass Spectrometer Leak Detector (MSLD) as per Article 10, Section V of ASME BPV code by hood technique. While leak-testing the inner vessel, the internal volume shall be charged with a mixture of 75 % Gaseous Nitrogen + 25 % Gaseous Helium and the annular volume between the inner vessel and the outer vessel be evacuated and connected to MSLD. While leak-testing the outer vessel, the exterior surface of the outer vessel shall be shrouded by synthetic bag with 100 % Gaseous Helium and the annular volume between the inner vessel and the outer vessel be evacuated and connected to MSLD. The leakage rate shall be finer than 1E–9 Pa.m3/s.

7.7 Vacuum Retention test: The vacuum holding (vacuum retention) test shall be conducted at supplier’s works. The vacuum level in the vacuum jacket shall be recorded for a minimum duration of 72 hours after achieving stable vacuum and stopping of evacuation of vacuum jacket and sealing of the pump out port. There shall be no appreciable increase in vacuum level and it should stabilize at < 10-3 mbar (at atmospheric temperature).

7.8 Cold shock test: The cold shock and MSLD leak test shall be conducted by filling the tanks with Liquid Nitrogen and observe for any structural defects or sweating/ frosting on the jacket

7.9 Performance test: The performance test shall be conducted by purchaser at Purchaser’s site after erection of tanks. The tanks shall be filled with Liquid Nitrogen to its gross volume and the evaporation loss rate be measured by employing a gas flow meter in the vent line. The evaporation loss rate thus measured shall be less than the 0.1% per day. The performance test shall also comprise functional check of all flow components and instruments. A detailed Procedure for conducting performance test shall be prepared by the supplier. The procedure shall include the following; a) Review of vacuum level in the vacuum jacket. b) On the day of performance test the vacuum level in the vacuum jacket shall be

measured and recorded before start filling of LN2.

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c) After completion of performance test and draining LN2 & warm up, the vacuum level in the jacket shall be measured and ensure that the vacuum level is not deteriorated.

Moreover, the performance test shall also comprise functional check of all components and instruments. The performance test shall be performed in the presence of Department and TPI.

8 INSPECTION The in-process (stage) and pre-delivery inspection of the tanks shall be carried out by one of the

following Third Party Inspection (TPI) agencies: Lloyds Register Industrial Services Pvt Ltd (LRIS) Det-Norske Veritas (DNV) Technischer Uberwachungs Verein (TUV)

It shall be the responsibility of the supplier to arrange for and coordinate with the TPI agency. The scope of inspection shall be as follows.

8.1 Review and approval of the design calculations, fabrication drawings and QAP. 8.2 Identification of raw materials and review of the material test certificates for compliance

with the relevant requirements, including UT for plates. 8.3 Review of test and calibration certificates for compliance with the specification and

visual examination of the bought-out flow components and instruments. 8.4 Witnessing and certification of welding procedure qualification and welder’s

performance qualification tests. If the welders already possess the performance certificate, the TPI agency shall review and authorize the same.

8.5 Review of X-ray films of radiographic tests for possible defects in the weld joints and vacuum retention test results.

8.6 Inspection at any stage of fabrication to ensure that the methodology employed for fabrication is in compliance with the requirements of standard codes and practices and the approved documents.

8.7 Witnessing of pressure test, leak test and cold spot test.

8.8 Issuance of Pre-Delivery Inspection (PDI) certificate and stamping on the tanks.

Note: Apart from inspection by the TPI agency, the Purchaser’s representative(s) shall also witness any test as may be deemed necessary at their discretion.

9 DOCUMENTATION The following documents (in English) in 2 hard prints/ copies as well as in electronic/ soft copy shall be furnished at different stages specified thereupon.

9.1 Detail engineering review: Within 8 (eight) weeks from placement/ award of the Purchase order, the Purchaser shall conduct the Detail Engineering Review (DER). The following documents duly reviewed and approved by the TPI agency for compliance with the requirements of the relevant design codes as specified in the Purchase order and statutory regulations, shall be submitted to the Purchaser during the DER. Before commencement of fabrication of the Tank, the supplier is required to submit all the drawings and documents duly approved by TPI agency for approval by the Department. These documents are subject to review by the Purchaser and only upon approval of the same by the Purchaser, the supplier shall proceed with fabrication. However, the Purchaser’s approval shall not absolve the Supplier of their responsibility to comply with the specifications of the Purchase order.

a. An overall dimensioned General Arrangement (GA) drawing of the tanks, ejectors, showing the assembled view along with all accessories shall be provided. The details of the interconnecting pipelines and their location with respect to the tanks shall also be shown in the GA drawing. The interface details for both fluid connections and instrument connections, including the relative positioning among the interfaces, their location with respect to the tanks and the end connection/ preparation details for each interface shall also be shown in the GA drawing.

b. The foundation details of the tanks, indicating the forces and moments acting on the foundation due to static and dynamic loading of the tanks, wind loads, seismic load and

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load due to external overpressure on the tanks shall be provided within 4-Months after placement of order. The calculations for arriving at the forces and moments acting on the foundation due to the aforesaid factors shall also be provided.

c. The detailed FEA of the Tank for the structural and thermal loads with ANSYS Workbench and Fatigue Analysis as per clause 2.1.21 of this document shall be provided. In addition to this, the supplier shall furnish the design calculations for Ejector.

d. The detailed analysis/ calculations to predict fatigue life (8000 cycles) of the tank considering temperature and pressure cycling during chill down, filling and expulsion shall be provided. The analysis shall be as per ASME section VIII Division 2.

e. The detailed dimensioned fabrication drawing of the tanks shall be provided. The fabrication drawings shall provide such in-depth details as are required for the Purchaser to obtain approval from the statutory authority [Chief Controller of Explosives, Petroleum & Explosive Safety Organization (PESO) of Government of India].

f. A schedule chart, preferably in the form a PERT network, detailing the various activities involved in fabrication and the time required for completing the same, so as to comply with the specified overall delivery period, shall be furnished.

g. A detailed Quality Assurance Plan (QAP) shall be provided

h. The make, model number and specifications of the flow components and instruments along with the relevant catalogues shall be provided.

i. Detailed procedure for conducting cold spot test and performance test including the methodology of computing evaporation loss rate of actual working fluid from the measured evaporation loss rate of LN2 shall be provided.

9.2 During the course of fabrication: The details of activities completed by the end of every month shall be sent to the Purchaser. The delay, if any, from the agreed schedule and the reasons, if any, therefore shall be highlighted. The schedule chart shall also be updated in such cases.

9.3 Pre-delivery review: On completion of fabrication and testing, but prior to delivery of the consignment, the Purchaser shall conduct a pre-delivery review. During the review, the following documents, duly approved by the TPI agency, shall be submitted to the Purchaser. The Purchaser shall review the same to ensure compliance with the specification of the Purchase order. On being satisfied, the Purchaser shall issue a “Purchaser’s delivery clearance”, only upon receipt of which the Supplier shall proceed with delivery of the consignment.

a Documents as per QAP & Documentation as per 9.1.

b. The certificates of all tests and calibration (including those for the bought-out flow components and instruments) shall be provided. Each page of the certificates shall be duly counter-signed and stamped by the TPI agency.

c. Pre-Delivery Inspection certificate by the TPI agency.

d. Warranty certificate.

e. As-built GA and fabrication drawings.

f. Instruction manual for unloading of tanks from the transportation trailer, erection, commissioning, operation, trouble-shooting and maintenance.

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10. ERECTION, COMMISSIONING AND SUPERVISION After receipt of the tanks at the Purchaser’s site at IPRC, Mahendragiri, the tanks shall be erected and commissioned by the Purchaser based on the documents to be provided by the Supplier for the same. The commissioning shall comprise performance test and pressure test up to the MEOP with Liquid Nitrogen and functional check of the flow components and instruments. The evaporation loss rates measured during commissioning with the respective working fluids shall be less than 0.1 % per day. Supervision Charges can be additionally quoted for erection and commissioning. In case any discrepancy or ill-performance is observed during commissioning, it shall be the Supplier’s responsibility to rectify/ replace the defective/ ill-performing subsystems or the entire tanks. In case the defective/ ill-performing sub-systems or the entire tanks require rectification/ rework to be carried out at the Supplier’s works, it shall be Supplier’s responsibility to rectify at site or at their work centre by transporting the same to the Supplier’s works, if required and back to the Purchaser’s site, at supplier’s cost.

Commercial Terms and Conditions

1. Security Deposit: The Supplier shall provide Bank Guarantee (BG) for an amount equivalent to the10% (TEN PERCENT) of the Purchase Order (PO) value towards Security Deposit for the due performance of the Purchase Order and shall be valid up to 60 (sixty) days from the date of completion of Contract. The security deposit can be submitted in the form of Bank Guarantee or Fixed Deposit receipt obtained from any Nationalized / Scheduled Bank and it shall be kept valid for a period of sixty days beyond the date of completion of Purchase Order. This Security Deposit will be returned to the Supplier only upon successful completion of all the Purchase Order obligations or shall be adjusted/ forfeited against non-fulfillment of any of the Purchase Order obligations. The security Deposit shall be submitted within 30 days from the date of receipt of purchase order.

2. Delivery Term: The tanks shall be delivered in totally integrated and ready-to-use form. The tanks shall be securely packed and delivered on FOR- Mahendragiri (Packing & Forwarding, Freight & Insurance are in supplier’s scope). The unloading, erection and commissioning at Purchaser’s site shall be under the Purchaser’s scope of responsibility.

3. Delivery Period: The minimum delivery period shall be specified by the bidder subject to a maximum duration of 10 months in the quotation. The delivery period shall be reckoned from the date of Purchase order to the date of delivery as per specified delivery term.

Within eight weeks from date of receipt of purchase order, Supplier shall submit document as per clause 9 of this document.

Within two weeks, Purchaser will scrutinize and provide clearance/ comments on documents received from Supplier.

Tank shall be delivered within 10 months from the date of placement of order from the Department.

4. Liquidated Damages (LD): The delivery period shall be the essence of the purchase order. If the supplier fails to meet delivery date within the time specified in PO or any extension thereof, the Department will recover from the Supplier as Liquidated Damages (LD) a sum of 0.5% of the total order value for each calendar week of delay or part thereof subject to a maximum of 10% of the total order value.

5. Warranty: The tank shall be guaranteed for satisfactory performance over a period of 24 months from the date of dispatch from the Supplier’s works or 18 months from the date of commissioning at the Purchaser’s site, whichever happens to be earlier, against fabrication, manufacturing and workmanship defects. In case any defect develops in the work due to bad material and / or bad workmanship before the expiry of guarantee period, the Bidder, on notification by Department, shall rectify or remedy the defect or replace items, at their own cost and shall make their own arrangements to provide materials, labour, equipment and any other appliances required in this regard.

Annexure-1

Page 13 of 14

6. Performance Bank Guarantee: The Supplier shall provide Performance Bank Guarantee (PBG) for an amount equivalent to the10% (TEN PERCENT) of the Purchase Order (PO) value valid for a period up to 60 days beyond the completion of warranty period. The Security Deposit can be extended as PBG also.

7. SECRECY: The technical information, drawings, specification and other related documents forming part of enquiry or P.O are the property of the Department and shall not be used for any other purpose, except for execution of this order. All rights, including the rights in the event of grant of a patent and registration of designs are reserved. The technical information, drawings, specifications, records and other documents shall not be copied, transcribed, traced or reproduced in any other form or otherwise in whole and/ or duplicated, modified and/or disclosed to a third party and/or not misused in any other form whatsoever without the Department’s consent in writing except to the extent required for the execution of the work. This technical information, drawings, specifications, records and other documents shall be returned to the Department with all approved copies and duplicates, if any, immediately after they have been used for the agreed purpose.

8. Payment Terms: It is to be noted that department don’t encourage for advance payment, however, in case bidder insist on advance payment it shall be considered subject to the acceptance of following conditions:

a) Bank Guarantee (BG) for equivalent sum from a nationalized/ scheduled bank approved by RBI or a reputed first-class international bank valid till final acceptance of tank with additional claim period of 2 months shall be submitted.

b) The Department will load simple interest on the advance payment over the execution period at MCLR as notified by State Bank of India applicable on the due date for submission of bid for comparison of the price bids.

Moreover, in case of delay in delivery by the bidder beyond the stipulated period due to reasons not attributable to the Department, the Department will recover interest on the advance payment over the period of delay at the MCLR as notified by State Bank of India on the date of final acceptance of items. (This will be over and above LD).

8.1 Advance payment.

Maximum 20% of Purchase Order (PO) value shall be paid against the submission of following document;

a) Proforma Invoice b) Bank guarantee for an equal amount issued by schedule bank valid till the

delivery of thank at IPRC, Mahendragiri, as per enclosed format. c) Security deposit.

8.2 On completion of detailed engineering: Maximum 10% of PO value shall be paid against the submission of following document;

a) Invoice b) Detailed engineering completion certificate c) Bank guarantee for an equal amount issued by schedule bank valid till the

delivery of thank at IPRC, Mahendragiri, as per enclosed format.

8.3 On completion of pre-delivery inspection: Maximum 60% of PO value along with applicable taxes & duties shall be paid against the submission of following document;

a) Proforma Invoice b) Pre-Dispatch inspection certificate by TPI agency. c) Delivery clearance by the Purchaser.

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8.4 On completion of performance test: Balance 10% of PO value shall be paid on acceptance of the items at our site against the submission of following documents;

a) Invoice b) Performance test completion certificate. c) Performance Bank Guarantee (PBG) for 10% of PO value valid for a period up to

60 days beyond the date of completion of warranty period.

9. Dispatch: The Supplier is responsible for obtaining a clear receipt from the Transport Authorities specifying the details of consignment. The consignment should be dispatched at Store Office, IPRC. If sent in any other address, it shall be at the risk of the Supplier. Purchaser will take no responsibility for short deliveries or wrong supply of consignment when the same are booked on 'said to contain' basis. Purchaser shall pay for only such stores as are actually received by them in accordance with the P.O.

10 Prices: The supplier shall provide the Price break-up in the price format given in Table-B in the price bid only. No cost should be given in technical bid.

Table: B

Sl. No. TAG NO.

QTY (NOS)

UNIT PRICE

TOTAL PRICE

1. Supply of LIN tank comprising Design, Detailed engineering, sourcing of raw material including supply of Instruments & Scope as listed under Sl. No. 2 to 13 below.

1

2. Cost of Safety Valves 2

3. Cost of burst discs 4

4. Cost of 3-way valve ITVM-S3502 1

5. Cost of Ejector System 2

6. Cost of Temperature Transmitters 3

7. Cost of Level Transmitter 2

8. Cost of Surface Temperature Indicator 3

9. Cost of Instrumentation Boom with mating flanges of suitable size to mount the temperature transmitters.

1

10. Supervision charges during erection and commissioning

11. TPI charges (as % of Tank Cost)

12. Packing, Forwarding and Transportation charges (as % of total Cost)

13. Applicable Taxes and Duties (as % of total Cost)

Total cost

Annexure-2

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A. Technical Specifications of Safety Relief Valves 1. Parameters

Quantity, Tag Number, Type, Fluid Medium, Working Temperature range

As specified in Annexure-1

Set Pressure, Flow Temperature To be discussed and finalized during Detail engineering review

Extent of lift Full lift Minimum required gas flow capacity Based on “loss of vacuum” condition in the jacket +

“Fire engulfing” in the environment as per ISO 21013-2016-Part 3, for safety relief valves.

Orifice Size To be discussed and finalized during Detail engineering review

Overpressure ≤ 7±3 % of set pressure Blow down ≤ 5 % of set pressure Permissible leakage rate across seat As per API 527 End connection Raised Face (RF) flanges with concentric serrations

for pressure rating class ≤ 1500 as per ASME B 16.5 Design code API 526/ ASME Section VIII, Div. 1

2. Material of Construction

Body, bonnet ASTM A351 CF8/8M (for conventional & balanced bellow valves)

Nozzle ASTM A182 F304/316 (for Set Pressure ≤ 15 MPa)

Disc PTFE (for Set Pressure 1 to 15 MPa & Operating Temperature 75 to 300 K) or better

Bellows (for valves of balanced bellow construction)

Stainless steel 316L/ 316Ti/321

Spring Stainless steel 316L Bolts ASTM A 320 B 8 Nuts ASTM A 194 8

3. Tests

3.1 Material certificates: The material certificates, detailing the mechanical and chemical properties, of the principal pressure bearing parts (Body, Bonnet, Nozzle, Disc, Spring, etc.) shall be provided. Apart from Manufacturer’s Test Certificate, sample is to be taken from the material to be used for fabrication at shop in the presence of TPI for every heat number. Samples are to be tested in a NABL approved laboratory. After ensuring material properties in compliance with standards, clearance shall be given for shop fabrication.

3.2 Soundness test for castings &forging (wherever applicable): All the castings shall be subject to soundness test with radiographic or ultrasonic technique for flaw detection.

3.3 Welding joint test (wherever applicable): All butt welding joints in the filter shall be subject to radiographic test with X rays or gamma rays to 2% equivalent sensitivity as per Section IX, ASME.

3.4 Hydrostatic test: The nozzles of each valve shall be subject to hydrostatic test at 1.5 times of Set Pressure.

Annexure-2

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3.5 Shell Pneumatic test: The shell of assembled valve shall be subject to pneumatic test at 0.69 MPa(g) by pressurizing through the outlet end connection with dry air or nitrogen.

3.6 Seat leakage test: To be done at 0.9 times of Set Pressure. Procedure for testing shall be as per API 527.

3.7 Cold differential set pressure test: To validate set pressure and resealing pressure.

3.8 Flow Capacity Test: Copy of prototype test certificate by an accredited agency for the flow capacity of valve shall be submitted.

3.9 Visual & Dimensional check.

3.10 Cleanliness: All the interior flow surfaces of the valve shall be degreased and cleaned to Oxygen service standards as per CGA G-4.1 or ASTM G 93.

3.11 Marking: All the valves are assigned with tag numbers for the sake of identification. The tag number for each valve shall be legibly and indelibly engraved on the body of the valves besides, set pressure, size & pressure rating class of inlet & outlet connections, material of construction, etc., marking.

B. Technical Specifications of Rupture Disc 1. Parameters

Quantity, Tag Number, Fluid Medium, Working Temperature range, , Minimum required gas flow capacity

As specified in Annexure-1

Set Pressure, Flow Temperature To be discussed and finalized during Detail engineering review

Vacuum Support Yes Type Scored metal, pre-torque, rupture disc along with

safety heads and corrosion resistant screws. Each Rupture Disc Device shall contain one

Rupture disc in assembled condition. In addition, each Rupture Disc device shall be

supplied with 2 Spare Rupture Discs. Flow capacity Based on “loss of vacuum” condition in the jacket +

“Fire engulfing” in the environment as per CGA S 1.2 of Compressed Gases Association Inc., USA.

Mode of Buckling Forward or Reverse Disc size To be discussed and finalised during Detail

Engineering Review. Manufacturer range 0 % Burst Tolerance ± 5 % Tell-tale indicator and excess flow valve The outlet flange of the safety head shall be provided

with a tell-tale indicator and excess flow valve required for checking the integrity of rupture disc in-situ. A bourdon type pressure gauge with suitable range of dial size 50 mm shall be connected in the tell-tale port.

Companion flanges need not be supplied by Bidder however the safety heads offered shall be compatible for interfacing between flanges. Raised Face (RF) flanges with serration for Pressure rating class ≤ 1500.

Annexure-2

Page 3 of 3

2. Material of Construction

Disc Austenitic Stainless Steel for Nitrogen

Safety Head

Studs

Nuts

ASTM A182 F304/316

ASTM A320 B8

ASTM A194 8

Tell-tale adaptor and Excess Flow Valve SS 304 / 316

3. Tests

3.1. Material certificates: The material certificates, detailing the mechanical and chemical properties, of the principal pressure bearing parts shall be provided.

3.2. Burst Test: One rupture disc of each size and set Pressure shall be subjected to Burst Test as per UG-127, Section VIII, Division 1 of ASME. Rupture disc required for conducting Burst Test is under the scope of Bidder.

3.3. Dimensional check: After forming, the dimensions of the disc, especially the thickness, shall be measured and recorded.

3.4. Type test certificate establishing flow resistance value and minimum net flow area value shall be submitted for each type of Rupture Disc Device supplied.

4. Cleanliness: All the interior flow surfaces of the device shall be degreased and cleaned to Oxygen service standards as per CGA G-4.1 or ASTM G 93.

5. Marking: All the Rupture Disc Devices are assigned with tag numbers for the sake of identification. The tag number for each disc shall be legibly and indelibly engraved on the heads besides, Burst Pressure, size & Pressure rating heads, material of construction of disc, etc.

Annexure-3

Page 1 of 5

1. Specification for Smart differential Pressure/Level Transmitter

Sl. No. Parameters : Specifications 1. Type : Smart differential Pressure Transmitter 2. Measurement Range : As per Table –A1 3. Service medium : As per Table –A1

4. Turndown Ratio : 100:1

5. Output : Two wire 4–20 mA with superimposed Digital communication HART protocol

6. Power Supply : 12 to 30 V DC 7. Local Indication : 4 ½ digit LCD- Local Alpha Numeric Digital display in

Engineering unit. 8. Hazardous Area Certification

for all Transmitters : ( CENELEC / CSA / FM / ATEX or any equivalent approval).

9. Safety Integrity Level Standard (SIL)

: Safety Instrumented System Certification as per IEC 61508 standard , SIL 2 and above.

10. Zero & Span Adjustments : Zero and Span are to be adjusted from the Handheld HART Communicator (HHC) and provision for local adjustment to be set anywhere within the range limits

11. Failure mode alarms : High alarm ≥ 21.0 mA Low Alarm ≤ 3.6 mA

12. Reference Accuracy @ TD 5:1 (including the effect of Terminal base linearity, hysteresis and repeatability)

: ≤ ±0.075%Span for URL above 100mbar ≤ ±0.1 %Span for URL below 100mbar

13. Ambient Temperature effect for 280 C variation @ TD 5:1

: ≤ ±0.4% Span for URL above 100mbar ≤±0.75 % Span for URL below 100mbar

14. Stability : ≤±0.2%URL for 5 years, for URL above 100 mBar. ≤±0.2%URL for 1 years , for URL below100 mBar

15. Power Supply Effect : ≤± 0.005 % of Calibrated Span per volt.

16. Mounting Position Effect : Zero shifts can be calibrated out.

17. Static Pressure effect : Span error:≤ ± 0.2 % of span /70 bar for URL above 100 mbar. Span error:≤ ± 0.45 % of span /70 bar for URL below 100 mbar.

18. Maximum Static pressure : As per Table –A1

19. Over pressure limit : Over pressure limit of selected transmitters should be 1.25 times of URL (Upper range Limit) .

20. Nominal Operating Temperature

: 70 K to 353 K

21. Response time : ≤ 300 msec

22. Wetted Material : SS 316L for Diaphragm, flange and adaptor material, PTFE for O-ring material, Oxygen cleaning for transmitter in Oxygen service as per relevant oxygen service standard, Electrical housing certified for EExia IIC,T6 and calibration fluid shall be GN2.

23. Fill Fluid : Liquid Nitrogen

24. Transient Protection : 3KA crest ( 8/20 micro-sec) as per IEEE C62.41.2, IEC610004-4 and IEC61000-4-5

Annexure-3

Page 2 of 5

Note:

1. Vendor shall quote with detailed technical specification and printed product catalog, manufacturer datasheet containing product matrix and Part No de-codification details.

2. Vendor shall provide model matrix against each TAG. 3. Compliance statement to our indented specification shall be provided. 4. Operation Manual in English to be supplied. 5. The cost of valve manifold shall be quoted along with pressure transmitter.

Table A2 : 5-Valve Manifold Specifications

1 Type 5 valve manifold 2 Material 316SS 3 Packing material PTFE 4 Seat type Integral 5 Instrument Connection Suitable for quoted transmitter interface 6 Process connection ½ inch-14 NPTF

7 Maximum Operating Pressure 400 bar manifold for transmitter static pressure range upto250 bar

680 bar manifold for transmitter static pressure range between 250 to 500 bar 8 Operating Temperature 0 to 100 Deg C

9 Hydro Testing To be carried out at 1.5 times the maximum operating pressure for all the manifolds and certificate to be provided

10 Material Test certificate To be provided 11 Mounting Bolts To be supplied with SS material.

12 Oxygen cleaning Oxygen cleaning to be carried out for transmitters operating medium is oxygen

13 Catalogue Detailed technical datasheet and dimensional drawing to be provided along with offer

25. Drain vent port : Not required 26. Electrical Connection : ½ " – 14 NPT (F) with SS plug for dust proof. 27. Transmitter Process

Connection : ½ " – 14 NPT (F) or suitable for the quoted manifold

28. Housing Material : Polyurethane covered aluminium with 1/2-14NPT Conduit entry.

29. External Grounding screw assembly on transmitter body

: Required

30. Mounting Bracket : Stainless Steel Bracket with SS fasteners, bolts, nuts, washers and U-clamps suitable for 2 inch pipe mounting

31. Calibration : Calibration shall be carried out at room temperature in 5 steps ascending and 5 steps descending. Calibration certificate is to be provided. Calibration shall be traceable to national standards

32. Manifold : 5 Valve manifold to be provided as per Specification given in Table-A2; Make: Same Transmitter manufacturer’s manifold or Swagelok.

33. Make : Rosemount : 3051CD ; SMAR : LD400; YOKOCOWA : EJX110A; HONEYWELL: STD 800

Table A1

Sl. No. Tag No. Measurement

Range (MPa) MEOP/ Static

Pressure (MPa) MAWP (MPa) Process Connection Service

1 ILI-S-3501 0-0.15 0.8 1.0 As per vendor recommendation & prior

approval by IPRC.

LN2

2 ILI-S-3502 0-0.15 0.8 1.0 LN2

Annexure-3

Page 3 of 5

2. Specification for RTD Probe (Temperature Sensor)

2.1 Specification for Temperature Transmitter

1. Type : Platinum RTD (PT500) 2. Sensing Element : Platinum 3. Temperature Range : 70 K to 353 K 4. Resistance Temperature Coefficient : 0.00385 Ohm/Ohm/ºC 5. Resistance at 0o C ; 500.0±0.25 ohms 6. Accuracy Class : Class ‘B’ 7. Basic Sensor Error : ± 0.1K for 13-273.15K

± 0.9K for 273.15- 453 K 8. Insulation resistance : > 20 MΩ

9. Sensor cable length : 250mm 10. Thermal response : < 3sec 11. Lead Configuration : connectors / 4 wires 12. Sensor Configuration : Probe Type 13. Mech. Interface : Threaded Refer to Table-A3

1. Inputs : a. 4 wire Pt 100 IEC b. 4 wire Pt 500 IEC c. Thermocouples: O, J, B, R, S, T, K, types d. OHMS: 0-100ohm, 0-400ohm, 0-2000ohm

2. Output Signal : Two-wire, 4-20Ma with superimposed digital communication (HART protocol)

3. Power Supply : 12 to 42 Vdc 4. Indicator : 41/2 digit LCD indicator 5. Zero and Span Adjustment : Provision to be provided by Hand Held Terminal 6. Temperature Limits : Operation: 0 to 750C 7. Humidity Limits : 10 to 100% RH (non condensing) 8. Accuracy (Excluding sensor) : i. Sensor RTD-Type: Pt 100

Range : -200 to 850 deg C Digital Accuracy : +/- 0.2 deg C

ii. Sensor RTD-Type : Pt 500 Range : -200 to 450 deg C Digital Accuracy : +/- 0.25 deg C iii. K-Type T/C Range : -200 to 1350 deg C Digital Accuracy : +/- 0.6 deg C iv. N-Type T/C Range : -100 to 1300 deg C Digital Accuracy : +/- 0.5 deg C v. Resistance Input – Type : Ohm Range : 0 to 2000 ohm Digital Accuracy : +/- 0.35 ohm vi. Voltage Input-Mv Range : -10 to 100 Mv Digital Accuracy : +/- 150 microV

Annexure-3

Page 4 of 5

Temperature transmitters shall be mounted inside boom at different heights as indicated below.

ITI-S-3501- 90% of liquid height. ITI-S-3502- 75% of liquid height. ITI-S-3503- 50% of liquid height.

DN80; 10S pipe shall be selected for boom size. Accordingly, boom height shall be selected such that it should be sufficient to contain temperature transmitters at 50% of liquid height from top dished end location.

9. Minimum span : i. Sensor RTD-Type : Pt 100 10 deg C

ii. Sensor RTD-Type : Pt 500 10 deg C

iii. K-Type T/C 60 deg C

iv. N-Type T/C 50 deg C

v. Resistance Input – Type : Ohm 20 ohm

vi. Voltage Input-Mv 10 Mv

10. 4-20 Ma digital accuracy : ≤ ± 0.03% of span 11. Loss of Input (Burnout) : In case of sensor burnout or circuit failure, the self diagnostics

to drive the output to 3.9 or to 21.0Ma, according to the user’s choice

12. Turn-on Time : <=10 seconds 13. Update Time : <=0.5 seconds 14. Damping : 0 to 30 sec (adjustable) 15. Power Supply Effect : ± 0.005% of calibrated span per volt 16. EMI Effect : To be designed to comply with IEC 61326 series 17. Alarm : Dual, trip levels adjustable over entire range. High or Low

action Acknowledge, messaging. 18. Special 16-point sensor linearization for LH2/LOX application. Output should follow Ohm input

according to 16 –point linearization table 19. Configuration : To be done by an external Hand- Held terminal, that

communicates with the transmitter remotely or locally using Hart Protocol. Locally magnetic tool to be used as well.

20. Hazardous Location : Explosion proof, weather proof and intrinsically safe certified ATEX II 2G EExia IIC T6.

21. Electrical connection : ½± 14- NPT 22. Material of Construction : Injected low copper Aluminium with polyester painting or 316

Stainless Steel housing, with B Buna N 0rings on cover (NEMA 4X, IP67).

23 Make i. Rosemount : ii. SMAR

iii. YOKOCOWA iv. HONEYWELL

Table A3

Sl. No. Tag No. Temperature range (K)

Process Connection Service

1. ITI-S-3501 70-353 As per specifications.

LN2 2. ITI-S-3502 70-353 LN2 3. ITI-S-3503

70-353 LN2

Annexure-3

Page 5 of 5

Suitable flange shall be provided for support & mounting the boom to nozzle of inner vessel. The size of flange shall be decided based on detailed engineering & discussion with Purchaser. The size agreed by the Department shall be final. Electrical interface for temperature measurements shall be provided by vacuum feed through connector along with mating connector and terminated at outlet of outer vessel as shown in Fig.-1 LIN TANK_P&ID. Separator vacuum jacket as shown Fig.-1 LIN TANK_P&ID with vacuum port cum seal off valve & vacuum gauge etc to avoid moisture and easy mounting/removal of the boom shall be provided.

2.2 Surface Temperature Indicators: Details are furnished below Table A4

Sl. No. Tag No. Temperature range

(K) Process Connection Service

1. ITC-S-3501 70-353

Pasted or welded type

LN2

2. ITC-S-3502 70-353 LN2

3. ITC-S-3503

70-353 LN2

Calibration certificates are to be provided. Dimensional drawing shall be provided during detail engineering.

Mounting Requirements for Temperature sensors

Temperature transmitters shall be mounted inside the tank. Necessary nozzle for mounting these transmitters shall be provided in the inner tank and if further details are required shall be finalised during Detail engineering review. Temperature sensor shall be mounted vertically inside the tank. Probe length shall be finalized during detailed engineering. Necessary interface shall be provided in the tank for future removal or maintenance of the sensor. Electrical interface for temperature measurements shall be provided by vacuum feed through connector along with mating connector and terminated at outlet of outer vessel.

Annexure-4

Page 1 of 2

Pre-Qualification Criteria (Annexurre-4)

Specifications LIN Tank

ISRO PROPULSION COMPLEX (IPRC), Mahendragiri

Annexure-4

Page 2 of 2

PRE-QUALIFICATION CRITERIA:

The Bidder’s capability shall be evaluated based on the following Pre-Qualification (PQ) criteria. The Bidders shall suitably fill-up the information solicited in “Item specification” and submit as part of the Techno-Commercial Bid (TCB). Those Bidders who comply with the PQ criteria only will be screened-in for opening and evaluation of Price Bid. The information to be submitted in the TCB shall be complete in all respects substantiated by attached documents and there shall not be any further opportunity for the Bidders to submit any information or document unless the Purchaser solicits so at their own discretion. Any lack of information or incomplete/ ambiguous information or false information or information non-compliant with the PQ criteria shall be treated as sufficient cause to summarily reject such Bids.

1. The Bidder must be manufacturer or authorized agent. Manufacturer shall submit a self-declaration to that effect. Agent shall submit Authorization letter from the manufacturer. If the bidder is a subsidiary of their foreign principal, the credential of their principal may also be accepted provided that there is an agreement of technical support from their principal.

2. The Bidder (or their Principal) must have successfully completed supply of cryogenic tank of worth specified below.

2.1. For Cryogenic Tank

a. 1 order (single purchase order) of price equal to or more than Rs 188 Lakhs

or

b. 2 orders with price of each order equal to or more than Rs 150 lakhs

or

c. 3 orders with price of each order equal to or more than Rs 120 lakhs

AND

2.2 The Bidder (or their Principal) must have successfully completed supply of cryogenic tank of at least size 80kL at 5.0 bar,

during the last 7 years ending 31/03/2019. The claim shall be substantiated by purchase order(s) AND inspection release note(s)/ acceptance certificate(s) by third-party inspection agency AND performance acceptance certificate by the client dated between 01/04/2012 and 31/03/2019.

3. The average annual financial turnover of the bidder or their principal during the last 3 years ending 31/03/2019 must be at least Rs.120 lakhs. The claim shall be substantiated by audit annual report/Income tax return statement/balance sheet.

4. The bidder shall submit details of their design, manufacturing capability for SI tanks, Testing facilities viz. Hydraulic, Pneumatic testing facilities & in-house assembly facilities etc. Bidder is further requested to furnish the details of available man-power, nos. of design engineer and details of available tools & machinery for fabrication. List of potential clients along with credential of earlier executed purchase orders & order acceptance by the clients shall also be furnished by the bidder.

IPRC will assess and infer the capability of the bidder to meet the specifications based on the available information. In this regard, discretion of IPRC will be final.