Indira Gandhi Centre For Atomic Research Tender

Fabrication of installation of SS double walled cooling chamber/trap as per dwg Dwg No: IGC/MC&MFCG/CFED/ SDC/2023

Fabrication of installation of SS bellows as per dwg Dwg No: IGC/MC&MFCG/CFED/ SB/2023

Fabrication, supply and installation of Electro pneumatically operated vacuum isolation valves of size – 2” and valve end flanges suitable for SS bellows.

Fabrication, supply and installation of Electro pneumatically operated vacuum isolation valves of size – 3” Dwg No: IGC/MC&MFCG/CFED/ IV/2023

Machining and installation of electrical feedthrough flanges as per Dwg Dwg No: IGC/MC&MFCG/CFED/FF1/2023

Supply of viton ‘o’ rings and silicone gasket for subassemblies as per technical specification

Leak testing of inert atmosphere glove box by pressure method involves installation of laminated safety glass panels with glove ports, arresting gross leak with soap bubble test and then qualification of glove box with 24 hrs leak test.

Installation and commissioning of sodium bonding furnace

Installation and commissioning of sodium bonding furnace inside GB involves plasma cutting, grinding, TIG welding and pickling & passivation as per the Dwg Dwg No:IGC/MC&MFCG/CFED/GNK/SBF/2023-1

Machining and installation of electrical feedthrough flanges as per Dwg Dwg No: IGC/MC&MFCG/CFED/FF2/2023

Installation and commissioning of PWHT furnace

Installation and commissioning of PWHT furnace inside GB involves plasma cutting, grinding, TIG welding and pickling & passivation as per the Dwg Dwg No:IGC/MC&MFCG/CFED/GNK/SBF/2023-1

Machining and installation of electrical feedthrough flanges as per Dwg Dwg No: IGC/MC&MFCG/CFED/FF3/2023

SS PIPE FABRICATION & ERECTION: Handling, transportation of stainless steel pipes of grade 304L quality (Supplied as Free Issue Material), marking, cutting, fabrication (excluding welding), and surface treatment of pipes as per approved procedure and erection of pipes on fabricated supports at site as per the approved drawings. Sizes of Sch.10 pipe involved are DN 8 to DN65. (The rate for each meter erected up to pipe size DN 25 shall be considered as Running meter)

(i) 1/8”, ¼” & ½” AISI 304L tubes

(ii) ½” & 1” NB Sch 10 AISI 304L Pipes

(iii) 1½” NB Sch 10 AISI 304L pipes

(iv) 2” NB Sch 10 AISI 304L pipes

Installation of stainless steel ball valves, pneumatic valves and needle valves of different sizes

(i) ¼” & ½” (15NB) SS ball valves & Needle valves

(ii) 1“ (25NB) SS ball valves

(iii) 1 1/2“ (40NB) SS ball valves

(iv) 2“ (40NB) SS ball valves

PIPE BUTT WELDING (ER 308L filler wire): Gas Tungsten Arc butt welding of stainless steel pipes of grade 304L quality, Sch 40 pipe size DN 8 to DN100, including hookup joints, using Argon gas for shielding and purging, ER 308L filler wire as consumable, Liquid penetrant (LP) examination and local passivation of the weld joints as per specifications. (The rate for each butt joint welded up to DN 25 shall be considered as one inch Dia.)

PIPE FILLET WELDING: Gas Tungsten Arc fillet welding of pipe to pipe, pipe to valve and pipe to end closures of stainless steel pipe lines, wherever required. Welding shall be carried out using ER308L filler wire with Argon gas for shielding and purging as per specifications. Item rate shall be inclusive of LP examination and local passivation. (The rate for each butt joint welded up to DN 25 shall be considered as one inch Dia)

PLATE WELDING: Gas Tungsten Arc Butt welding of 6mm thick plate to plate of stainless steel material, wherever required. Welding shall be carried out using Argon gas for shielding and purging, ER 308L filler wire as consumable, Liquid penetrant (LP) examination and local passivation of the weld joints as per specifications. Item rate shall be inclusive of LP examination and local passivation.

SS Support Fabrication

Supply, handling, transportation, surface treatment, manufacture and erection of shielding/supports/structural members made from AISI 304 stainless steel plates, rods, etc as per Drawing at different location of MC&MFCG. The item rate includes i) Supply the Stainless Steel 304 quality materials such as plates and sheets in various thickness as per site requirements. ii) Forming/Fabrication of structural members like channels, angles, clamps etc in various sizes as required as per approved drawings. iii) Fabrication and erection of shielding/supports/structural members as per approved drawings and welding of structural members using GTAW process with argon gas for shielding using ER 308L filler wire, followed by site installation as per approved procedure and drawing. iv) All the weld joints shall be subjected to LPE on final pass and local passivated as per approved procedure v) all the structural members shall be subjected to surface treatment as per approved procedure prior to erection at site.