Supply, Fabrication, welding and erection of pipelines at HWPK site

Amount

Carbon steel piping welding (TIG welding with argon gas purging at root pass & subsequent stablising passes and finally to be welded with SMAW electrodes AWS E-7018-1 spl.) asper technical specification and guide lines of engineer incharge.

SW/FW up to Sch XXS

BW upto Sch 80

BW more than Sch 80 to Sch XXS

Stainless Steel Piping including bevel edge preparation, carrying out welding work as per technical specification (TIG welding with argon gas purging at root pass & subsequent stablising passes and finally to be welded. electrode shall be E-316L for filler passes.

SW/FW upto Sch XXS

Butt Weld upto Sch 80

Butt Weld More than Sch 80 to Sch XXS

Carbon steel piping welding with SMAW method & as per technical specifications, alingment and fitup for welding joints including bevel edge preparation, carrying out welding work as per technical specification (welding with SMAW electrode E-7018 spl.) and as per guideline of HWPK engineer

SW/FW upto Sch 80

Butt Weld upto Sch 80

Erection of pipes along with its fittings, flanges, valves, SRV's, rupture disc, carrying out flange jointing and torquing, welding of supports, anchors, pipe hangers, etc.

Removal of existing pipe cutting, grinding etc from the position:-Existing pipeline to be removed by grinding & cutting by gas/ electrode and making the ends ready for insttalation of butt welded tee. removed pipe spool to be returned to HWPK stores.

Fabrication, welding and erection of structural work for piping supports and strenthening of supports amd platform etc.:-For laying newly welded pipelines with structural sections materials are to be supplied by department & to be fabricated by gas cutting, erection and welding shall be as per site conditions and as per the guidelines of the HWPK engineer.

Radiography of the weld joint with gamma ray source as per ASME code section III :-For carrying out radiography work, contractor should arrange Gamma ray source of proper capacity. Arrange for punching segment mark on the pipeline nearer the weld joint arrange source and film positioner, taking exposed film and developing it, drying the film and submission to HWPK engineer. Film to be used for this purpose shall be NDT - 65 or its equivalent. They should also cordon the area whereradiography is to be taken with necessary caution display board.

Stress relieving of the welded joints by heating up to 610 degree centrigrade after radiographic examination. The chart of stress relieving shall be submitted to EIC of the work for examination.

Weld build up inside tank and valve bodies area at various locations as marked by engineers incharge. the job includes following works :-(1). Welder qualification as per approved WPS including all destructive/Nondestructive testing required for welder qualification(2).claning of area with Wire brush/grinder.(3)Root pass and Subsequent pass welding with GTAW process with use of ER 70 S 2 Filler wire. (4). Balance Passes With SMAW process with electrode E 7018-1.(5). flushing of excess welding to match the tank adjacent area thickness.(6). Liquid penetrant testing before weld build up,after every pass of weld build up & Final After weld build up job completion.(7).Preheating of area before start of weld build up.

Supply of following pipe,pipe-fittings and valves :

1/2" NB x sch 10S Seamless stainless steel pipe, matetrial confirming to A 312 TP 304L and dimension as per ASME B 36.19 with plain ends

1" NB x Sch 10S Seamless stainless steel pipe of matetrial confirming to A 312 TP 304L and dimension as per ASME B 36.19 with plain ends

1/2" NB x sch 40 seamless carbon steel pipe material confirming to SA 106 Gr B and dimension as per ANSI B 36.10

1/2" NB x 3000# socket weld type 90 Degree elbow material confirming to A 403 WP 304L and dimension as per ANSI B 16.11

1" NB x 3000# socket weld type 90 Degree elbow material confirming to A 403 WP 304L and dimension as per ANSI B 16.11

1/2" NB x 150# Socket weld raised face type flange material confirming to A 182 F 304 L and dimension as per ANSI B 16.5

1" NB x 150# Socket weld raised face type flange material confirming to A 182 F 304 L and dimension as per ANSI B 16.5

2" NB x 1" NB schedule 10S seamless concentric reduer butt weld typre ends,material confirming to A 403 WP 304L and dimension as per ANSI B 16.9

1/2" NB x 3000# (socket weld x FNPT) type coupling material confirming to A 403 WP 304L and dimension as per ANSI B 16.11

(1"x1/2"x1")NB x 3000# socket weld type Equal tee material confirming to A 105 and dimension as per ANSI B 16.11

(1"x1"x1")NB x 3000# socket weld type Equal tee material confirming to A 105 and dimension as per ANSI B 16.11

1/2" NB x 150# Socket weld type flanges material confirming to A 105 and dimension as per standard ANSI B 16.5

1" NB x 150# Socket weld type flanges material confirming to A 105 and dimension as per standard ANSI B 16.5

1-1/2" NB x 150# Socket weld type flanges material confirming to A 105 and dimension as per standard ANSI B 16.5

2" NB x 150# Socket weld type flanges material confirming to A 105 and dimension as per standard ANSI B 16.5

5" NB x 150# Slip on raised face flanges material confirming to A 105 and dimension as per ANSI B 16.5

1/2” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 6mm)

1” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 6mm)

1.5” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 8mm)

2” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 8mm)

3” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 8mm)

4” NB Pipe galvanized mild steel "U" clamp with two Nuts( Dia of Clamp Rod = 12mm)

Prefabricated MS gratings of size (1m x 1m) suitable for structural plateform fabrication, purpose as per site conditions,approved Drawing and as per the guidelines of the HWPK Engineer-In Charge.

2" NB x sch 40 seamless carbon steel pipes of A 106 GR B and dimension as per ANSI B 36.10

2" NB x sch 40 seamless 90 Degree carbon steel butt weld tpye elbows of material confirming to A 234 GR WPB and dimension as per ANSI B 16.9

2"x2"x2' NB sch 40 butt weld typre equal tee material confirming to A 234 GR WPB and dimension as per ANSI B 16.9

1/2'' NB x 800# socket weld type gate valves material confirming to A 182 F 316L and dimension as per ANSI B 16.10

1/2'' NB x 800# socket weld type globe valves material confirming to A 182 F 316L and dimension as per ANSI B 16.10

1'’ NB x 800# socket weld type globe valves material confirming to A 182 F 316L and dimension as per ANSI B 16.10

1/2" NB x 800# socket weld type Two piece ball valve with material confirming to A 182 F 316 L and dimension as per ANSI B 16.10

1" NB x 800# socket weld type Two piece ball valve with material confirming to A 182 F 316 L and dimension as per ANSI B 16.10

Wintech Engineers And Contractors