REPAIR REPLACEMENT OF VARIOUS DAMAGED MAIN WATER SUPPLY LINES ALONGWITH ASSOCIATED WORK FOR TECHNICAL AREA AT AF STATION SINGARSI UNDER AGE I AF SINGARSI

Amount

Excavation in trenches in soft/loose soil n.exc 1.5 mtr wide and n.exc 1.5 mtr deep & getting out soil for taking out/laying of pipe line etc.complete all as specified & directed by Engr-in-Charge.

Returning, filling in, including spreading, levelling watering and well ramming in layers not exc 25 cm.complete all as specified & directed by Engr-in-Charge.

Removing excavated mateials n.exc 50 mtr & depositing where directed at a level n.exc 1.5 mtr above the starting point.complete all as specified & directed by Engr-in-Charge.

Taking up/down of GI tubing of size 50mm and connections, from trenches duct, floor, roof etc incl. cleaning for re-fixing or removal to store complete all as specified & directed.

Taking up/down of GI tubing of size 20 mm and connections, from trenches, duct, floor, roof etc incl. cleaning for re-fixing or removal to store complete all as specified & directed.

Taking up CI/DI water main (incl all fitting) of size 100 m with spigot & socket ends and lead joints incl burning out & recovering lead from trenches, duct, etc complete all as specified & directed.

M & L for galvanised medium grade steel water tubing of size 50 mm including fittings like socket /Union/Tee/diminishing pieces, connectors (connectors shall be inserted , where required or directed), bends, elbow, short pieces, back-nuts, caps, plugs, etc and fixing complete with clips, wall hooks, wooden plugs or laying in trenches, etc also cutting, scewing and waste and for making forged bends on piping as requied, cutting through walls, floors, etc and making good disturbed structures,connecting to old or new position , jointing & testing complete all as specified & directed by Engr-in-charge.

S & F in repair gun metal gate valves of size 50mm with iron wheel head, screwed both end for iron pipe following bore of pipes complete all as specified & directed.

M & L for galvanised medium grade steel water tubing of size 20 mm including fittings like socket /Union/Tee/diminishing pieces, connectors (connectors shall be inserted , where required or directed), bends, elbow, short pieces, back-nuts, caps, plugs, etc and fixing complete with clips, wall hooks, wooden plugs or laying in trenches, etc also cutting, scewing and waste and for making forged bends on piping as requied, cutting through walls, floors, etc and making good disturbed structures, connecting to old or new position , jointing & testing complete all as specified & directed by Engr-in-charge.

S & F in repairs gun metal gate valves ISI Marked of size 20mm with iron wheel head, screwed both end for iron pipe following bore of pipes complete all as specified & directed.

M&L for Ductile Iron pipes 100mm, spigot and socket end/both flanged end/flanged & socket end, centrifugally cast (spun), Class K-9, confirming to IS-8329/ 2000 or latest revision, in any length, laid in trenches/PCC base /RCC columuns, with & including EPDM rubber gasket confirming to IS:9523/2000 or latest revision, connecting to old or new position, jointing & testing complete all as specified & directed by Engr-in-Charge.

M&L DI bends & special confirming to IS-9523:2000 (latest revision) (any type radius and angle ) tappers, any type (straight bend, increasing, decreasing or double socket etc). Tee pieces single branch "Y" junction , double branch cross (all socket or socket end spigot ) collar, caps and plugs and connecting pieces one end flanged and other socket or spigot and bell mouth pieces one end flanged other end tapering as bell mouth upto 150mm bore complete all as specified and as directed by Engr-in-Charge.

M&L DI bends & special confirming to IS-9523:2000 (latest revision) (any type radius and angle ) tappers, any type (straight bend, increasing, decreasing or double socket etc). Tee pieces single branch "Y" junction , double branch cross (all socket or socket end spigot ) collar, caps and plugs and connecting pieces one end flanged and other socket or spigot and bell mouth pieces one end flanged other end tapering as bell mouth from 200mm to 300mm bore complete all as specified and as directed by Engr-in-Charge.

S & F in repair for cast iron sluice valve of 100 mm dia ISI Marked, confIrming to IS14846 both ends flanged with brass spindle, class PN1.6 and necessary new MS nuts, bolts, washer and gasket, including taking out old u/s ones for credit and making good etc complete all as specified and directed by Engr-in-Charge.

S & F in repair for cast iron sluice valve of 150 mm dia ISI Marked, confIrming to IS14846 both ends flanged with brass spindle, class PN1.6 and necessary new MS nuts, bolts, washer and gasket, including taking out old u/s ones for credit and making good etc complete all as specified and directed by Engr-in-Charge.

S & F of PP Tapping Saddle Clamp suitable for 100 mm dia DI pipe, PN 16 bars pressure rating incl. nuts, bolts, gasket, etc for clamping, complete as specified and directed.

M & L for brass stainer for suction 100 mm Dia ISI Marked brass made complete all as specified and directed.

M & L in repair for brass stainer for suction 50 mm Dia ISI Marked brass made complete all as specified and directed.

M & L in repair for Cast iron Air Release Valve 80 mm dia (double head), conforming to IS14845 both ends flanged with brass , class PN1.6 incl. gasket complete all as specified and directed. Make-Kartar/Equivalent

M & L in repair for Cast iron Air Release Valve 50 mm dia (double head), conforming to IS14845 both ends flanged with brass , class PN1.6 incl. gasket complete all as specified and directed. Make-Kartar/Equivalent

Refixing of old steel tubing of 50 mm dia and connections in new or old postion (wall, ceiling, floors,etc) including fittings complete all as directed.

M&L for taking out sluice valves of dia 100mm,refacing, regrinding and refixing complete all as directed. Note:-Rubber Gasket or fibre board gasketsand will be paid separately as per existing serials.

M&L for taking out sluice valves of dia 150mm,refacing, regrinding and refixing complete all as directed. Note:-Rubber Gasket or fibre board gasketsand will be paid separately as per existing serials.

M&L for taking out sluice valves of dia 200mm,refacing, regrinding and refixing complete all as directed. Note:-Rubber Gasket or fibre board gasketsand will be paid separately as per existing serials.

M&L for joint with rubber or fibre board gasket (incl. bolts, nuts, washers and white lead or mineral oil) of size 200mm dia complete all as specified and as directed by Engr-in-Charge.

M&L for joint with rubber or fibre board gasket (incl. bolts, nuts, washers and white lead or mineral oil) of size 150mm dia complete all as specified and as directed by Engr-in-Charge.

M&L for joint with rubber or fibre board gasket (incl. bolts, nuts, washers and white lead or mineral oil) of size 100mm dia complete all as specified and as directed by Engr-in-Charge.

M&L for leakage rectification, cutting of existing pipe and making threading for repair/ replacement of U/S fittings, rubber gasket, saddle piece, nuts, bolts with washer etc., pipe in short lengths (up to 1.5 mtr) for addition and alteration of 40 to 200 mm dia CI/DI/GI dia and including replacement of fittings, rubber gasket, saddle piece, nuts, bolts with washer etc. pipe in short lengths(up to 1.5 mtr), high density rubber sheet, welding, and including necessary exacavation & earth work as required for making it serviceable complete all as specfied and directed . Note:-Rubber Gasket or fibre board gaskets and will be paid separately as per existing serials.

Fixing only Air Release valve 80 mm ISI marked with and including all fittings. Store will be issued under Schedule 'B' Free for fixing only.

Fixing only sluice valve of size 200mm with flanged ends, any pattern.Store will be issued under Schedule 'B' Free for fixing only complete all as specified and directed by Engr-in-Charge.

Fixing only sluice valve of size150mm with flanged ends, any pattern.Store will be issued under Schedule 'B' Free for fixing only complete all as specified and directed by Engr-in-Charge.

Fixing only Non Return Valve of size 200mm with flanged ends, any pattern.Store will be issued under Schedule 'B' Free for fixing only complete all as specified and directed by Engr-in-Charge.

Fixing only Non Return Valve of size 150mm with flanged ends, any pattern.Store will be issued under Schedule 'B' Free for fixing only complete all as specified and directed by Engr-in-Charge.

Fixing only Non Return Valve of size 100mm with flanged ends, any pattern.Store will be issued under Schedule 'B' Free for fixing only complete all as specified and directed by Engr-in-Charge.

Laying only Ductile Iron pipes 100mm, spigot and socket end confirming to IS-8329/ 2000 or latest revision, in any length, laid in trenches/PCC base /RCC columuns, with & including EPDM rubber gasket confirming to IS:9523/2000 or latest revision, connecting to old or new position, jointing & testing complete all as specified & directed by Engr-in-Charge. Store will be issued under Schedule 'B' Free for Laying only.

Taking up/down of GI tubing of size 100mm and connections, from trenches duct, floor, roof etc. complete all as specified & directed.

M & L for galvanised medium grade steel water tubing of size 100 mm including fittings like socket /Union/Tee/diminishing pieces, connectors (connectors shall be inserted , where required or directed), bends, elbow, short pieces, back-nuts, caps, plugs, etc and fixing complete with clips, wall hooks, wooden plugs or laying in trenches, etc also cutting, scewing and waste and for making forged bends on piping as requied, cutting through walls, floors, etc and making good disturbed structures,connecting to old or new position , jointing & testing complete all as specified & directed by Engr-in-charge.

S & F for 16 to 20mm dia mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut exc 10cm but n.exc 22.5cm long complete all as specified and directed.

DANATION CONSTRUCTIONS (BID ID -3343221)

M/S New Builders Corporation (BID ID -3345437)

M/S AMARNATH AGARWALLA (BID ID -3343929)

M/S MBS TRADING CO (BID ID -3343899)

M/S SINGH ENTERPRISE (BID ID -3344607)