Supply, fabrication, installation and testing of stainless steel trench piping at building 306, FRFCF, Kalpakkam

Amount

Supply, handling, Fabrication, Erection, & Testing of Stainless Steel seamless Pipes excluding of welding and the pipes shall be confirming to ASTM A 312 Gr. TP 304 L. as per technical specification and drawings. (BW for pipe >= 100 NB)

50 NB (2 inch), Sch 40S

100 NB (4 inch), Sch 40S

200 NB (8 inch), Sch 40S

250 NB (10 inch), Sch 40S

SS FITTINGS: Supply, handling, Fabrication, Erection, & Testing of B 16.9 Stainless Steel ASTM A 403 WP 304 L, fittings as per technical specification and drawings.

50 NB, Sch 40S- 90 Degree Long radius seamless Elbow

100 NB, Sch 40S 90 Degree Long radius seamless Elbow

200 NB, Sch 40S 90 Degree Long radius seamless Elbow

250 NB, Sch 40S 90 Degree Long radius seamless Elbow

50 NB, Sch 40S 45 Degree Long radius seamless Elbow

100 NB, Sch 40S 45 Degree Long radius seamless Elbow

200 NB, Sch 40S 45 Degree Long radius seamless Elbow

250 NB, Sch 40S 45 Degree Long radius seamless Elbow

100 NB, Sch 40S Seamless Equal Tee

200 NB, Sch 40S Seamless Equal Tee

250 NB, Sch 40S Seamless Equal Tee

50 x 100 x 100 NB, Sch 40S Seamless Unequal Tee

100 x 200 x 200 NB, Sch 40S Seamless Unequal Tee

200 x 250 x 250 NB ,Sch 40S Seamless Unequal Tee

100 NB, Sch 40S End Caps

200 NB, Sch 40S End Caps

SS Flushing Line: Supply, fabrication, welding, and testing of ASTM A 312 TP 304L 25 NB flushing lines of length 150 mm, stub in welded at 450 to trench header pipe using GTAW (ER 308L Filler) and closed with ASTM A 182 Gr. F 304L NPT (F), 3000 Class 1" threaded cap. (100 % DPT on final passes of welds)

SS Flanges: Supply, handling, Fabrication, Erection, & Testing of ASTM A 182 Gr. 304L, SORF, 150 Cl., flange with accompanying ASTM A 182 Gr. 304L, RF, 150 Cl., Blind flange and spiral wound SS304L inserted graphite gaskets of 3mm thickness and accompanying ASTM SA 193 Gr. B8 Machine Bolts, Nuts and Washers as per technical specifications and drawings.

SS Circumferential Pipe Butt Welding : Welding of Stainless Steel pipe and fittings using GTAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. ( 100% DPT on root and final pass all weld joints.)

SS Miter joint Welding : Welding of Stainless Steel pipe using GTAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. Joints shall be fabricated as per site requirements. ( 100% DPT on root and final pass all weld joints.)

SS Butt Welding of pipe sections : Butt Welding of sections of Stainless Steel pipe and fittings using GTAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. ( 100% DPT on root and final pass all weld joints.)

SS Stub-In Joint Welding: Welding of Stainless Steel pipe and fittings using GTAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. ( 100% DPT on root and final pass all weld joints.)

SS Fillet Welding (For Flange) : Welding of Stainless Steel flanges using GTAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. Rate is inclusive of seal weld near flange face. ( 100% DPT on root and final pass all weld joints and seal joint.)

SS Fillet Welding : Welding of Stainless Steel plates using SMAW process with approved makes of ER 308L filler wire. Liquid penetrant (LP) examination and passivation of weld shall be carried out as per technical specifications. ( 10% DPT on root and final pass on all joints)

SS Plates for Spider Support: Supply, handling, Fabrication, Erection, & Testing of 6 mm thick Stainless steel plates for Spider Support shall be confirming to ASTM A 240 Gr. TP 304 L as per technical specification and drawings, excluding welding. (Welding rate is included in Item 38. )

SS Poison Plates: Supply, handling, Fabrication, Erection, & Testing of 3mm thick Stainless steel poison plates shall be confirming to ASTM A 240 Gr. TP 304 L. The dissimilar welding shall be done by SMAW using ER 309 filler wire as per technical specification and drawings. (passivation and 10% LP on root and final pass of welds.)(in kg)

SS Annular Plates: Supply, handling, Fabrication, Erection, & Testing of 3mm thick Stainless steel annular closure plates with half inch SS (TP 304L) weld pipe nipple (One side welded and other threaded) seal welded to embedded jacket pipe confirming to ASTM A 240 Gr. TP 304 L. The welding shall be done by SMAW process using 308 L filler wire as per technical specification and drawings. (Passivation on all welds. 10% DPT on root and final pass on all joints)

Between 50 NB and 100 NB pipes

Between 100 NB and 200 NB pipes

Supply, Fabrication, Erection, Testing, & painting of MS Supports/sleeves. The structural member shall be ISMC channels, ISA Angles and MS Plates, pipe as per technical specification and approved drawings. (10% of LP on final pass). Two coat of red oxide, zinc chrome primer conforming to IS 2074 shall be done.

Gamma-ray examination of butt welded pipe joints of Inside the trench piping as per the technical specifications of the tender (as per ASME Section-III, ND) using Selenium source as per approved procedure. The supply, transport of IGRED, shielding requirements, film, dark room facility, consumables for film washing, skilled (including RSO) and unskilled personnel are under the scope of the contractor. (10% on header pipe butt weld joints)

X-ray examination of butt welded pipe joints as per the technical specifications of the tender using conventional X-ray machine as per approved procedure. The supply of X-ray machine, film, dark room facility, consumables for film washing, skilled and unskilled personnel are under the scope of the contractor. (10% on SS piping and fire hydrant piping)

Pnuematic testing - Supply of equipment for pnuematic Test and pneumatic test for trench after completion of all piping connections to all header as per technical specification. 1 Lot may be approximately considered to be 100 m of header piping with associated branch piping.

Hydrotesting - DM Water Hydro Test for above trench pipe lines (including jacket pipe), after completion of all connections as per tender specification. Required DM water will not be provided at site. Main pipe to be pressurized while testing of jacket pipe. (One lot may be approximately considered to be 100 m of piping)

Anchor Fastners: Supply and fixing of heavy duty, expansion type, GI anchor fasteners as per technical specifications along with bolts and washers for fixing the base plate and providing pipe supports where ever embedded plates are not available/provided.

M16 X 120 mm Length

Opening and enclosing of brick wall: Brick wall opening, of wall thickness from 150 mm to 300mm for routing of pipe & ducts and enclosing the same with proper PVC sleeves, providing brick filling and cement mixture at various locations

Opening and enclosing of concrete wall: Concrete wall opening, of wall thickness from 150 mm to 300mm for routing of pipe & ducts, installation of drain point and enclosing the same with proper sleeves, providing necessary filling and cement mixture at various locations.

Drawings: Preparation of Piping fabrication/welding and AS Build isometric drawings including supports, connectivity, identification marking & Spool Drawings of Piping Systems and equipment from Client's GA Drawing showing elevations, slope, fiitings etc and obtaining the approval of client for fabrication. Drawing size is A3.

HINDUSTAN CONSTRUCTION CORPORATION (BID ID -3005276)

Samay Project Services Private Limited (BID ID -3007510)