Replacement of HP Flare Boot and Process Effluent pipelines at HWPK site

Amount

Carbon steel piping welding upto 24" NB pipes with Shielded Metal Arc Welding method (welding with electrode E-7018 spl.) including, alingment and fitup for welding joints including bevel edge preparation, root and final pass LPT as per technical specification and guideline of EIC.

Socket welded/Fillet Weld type joints with pipe thickness up to 10 mm

Butt Weld upto type joints with pipe thickness up to 10 mm

Erection of pipes along with its fittings, flanges, valves, SRV's, rupture disc, carrying out flange jointing and torquing, insulation of anchor bolts, pipe hangers, etc. material required for temporary scaffolding and its preparation shall be in contractor scope.

Removal of existing pipe cutting by gas cutting/grinding operation from the position:-Existing pipeline to be removed by grinding & cutting by gas/ electrode. Removed pipe spool to be returned to HWPK stores. All consumables shall be in contractor scope. Scaffolding material required for execution of work and its preparation shall be in contractor scope.

Supply of structural steel sections namely I beams, channels, angles, MS flat, MS plates of all thickness sizes, MS gratings(Maximum Grating 2 MT Qty out of Total Qty) as per technical specification and guidelines of the HWPK Engineer-In Charge.

Fabrication, welding and erection of structural steel for various purposes like tanks overhead platform , monkey/step access ladders , storage racks , various lines piping supports anywhere in HWPK premises by gas cutting, grindng, Shielded Metal Arc Welding shall be as per site conditions and as per the guidelines of the HWPK engineer.

Replacement of 30" NB HP flare boot vertical pipe along with its foundation base plate structure including following jobs :- (1) anchoring of 30" NBx10mm thick pipe upper portion(approximate length 115 meter) with fabrication of structural steel members (2) removal of old 30" NB HP flare boot along with skirt support up to y joint(approximate pipe length 6 meter). (3). fabrication, welding and erection of 30" NB HP flare boot along with skirt support upto y joint with Tungsten inert gas welding + Shielded Metal Arc Welding process procedure as per piping specification.(4) radiography of all butt weld type newly fabricated joints. (5) two cycle of pre heating for H2S exposed pipe up to 600 Deg centigrade with resistance heating as per guideline of EIC. (6) post weld heat treatment of all butt/fillet weld joints as per HWPK piping specification procedure.(7) all welding, scaffolding, lifting, radiography, post weld heating, pre heating tool tackles required for completion of job shall be in contractor scope.(8) all pipe/pipe fittings/structural steel shall be in HWPK Socpe

Replacement of 12" NB Nozzle of 3105 HT3 tower overhead line including following jobs:- (1) Preparation of Welding procedure specication and welding of test piece as per proposed Welding procedure specification (2) Qualification of WPS by carrying out various destructive test/ Non destructive test in NABL approved lab as per ASME section IX. (3) Welder qualification. (4)first temporary Support preparation for line connected with 12" NB nozzle (5) Cutting and removal of 12" NB nozzle along with reducer pipe (6) two cycle of pre-heating for H2S exposed pipe upo 600 Deg centigrade with resistance heating as per the guideline of EIC (7) Welding of 12" NB nozzle with Tungsten inert gas welding(TIG) + shielded Metal Arc Welding(SMAW) (8) radiography of all butt weld joints as per HWPK piping specification procedure(9) post weld heat treatment of all butt/fillet weld joints as per HWPK piping specification procedure (10) all welding, scaffolding, lifting, radiography, post weld heating, pre heating tool tackles required for completion of job shall be in contractor scope.(11) all pipe/pipe fittings/structural steel shall be in HWPK Scope.

Supply of following pipe,pipe-fittings and hume pipe :

20" NB x sch STD seamless carbon steel pipes of A 106 GR B with bevel ends and dimension as per ANSI B 36.10

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

1-1/2" NB x sch 40 seamless carbon steel pipes of A 106 GR B with bevel ends and dimension as per ANSI B 36.10

20" NB x 150#, Socket welded Raised face flange material confirming to A 105 and dimension as per ANSI B 16.5

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

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

20" NB x sch STD seamless 90 Degree carbon steel butt weld type LR elbow of material confirming to A 234 GR WPB and dimension as per ANSI B 16.9

14" NB x sch STD seamless 90 Degree carbon steel butt weld type LR elbow of material confirming to A 234 GR WPB and dimension as per ANSI B 16.9

8" NB x sch STD seamless 90 Degree carbon steel butt weld type LR elbow of material confirming to A 234 GR WPB and dimension as per ANSI B 16.9

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

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

1/2" NB x 300# Socket weld raised face type flanges material confirming to A 105 and dimension as per standard ANSI B 16.5

10" NB x sch 80, seamless carbon steel pipes material confirming to A 333 Gr 6 and dimension as per ANSI B 36.10

12" x 10" NB sch 80 seamless Long Length concentric reducer material confimring to A 420 WPL 6 and dimnesion as per ANSI B 16.9

10" NB X 300# weld neck raised face type flanges material confirming to A 350 LF 2 and dimension as per ANSI B 16.5

Providing and laying Non Pressure NP-4 class (Heavy duty) 1200 mm dia.RCC pipes (Laying by manual/ mechanical means) including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete as per the specifications and as directed by EIC.

OM ENGINEERING ENTERPRISES