REPAIR REPLACEMENT OF PIPE LINE, VALVE CHAMBER, CONTROL VALVE, (OHTs IN DOMESTIC AREA) AND MISC WORKS IN DOMESTIC AREA AND TECH AREA AT AF STN UTARLAI

Amount

Excavation in trenches as in hard / dense soil, not exc 1.5 mtr wide and not exc 1.5 mtr depth for laying of GI/CI pipe lines etc n exc 10sqm on plan getting out including forming bottom surface to required level and gradient all as specified and directed by Engineer-in-Charge.

Returning, filling in, excavated soil including spreading leveling, watering, well ramming in layers not exc 25 cm thick complete, all as specified and directed by Engineer-in-Charge.

Removing of excavated materials not exceeding 50 Mtrs and depositing at a level not exceeding 1.5 M above the starting point, all as specified and directed by Engineer-in-Charge.

Taking up or down steel water tubing and connections complete all as specified and directed for the following sizes :- Note: Excavation shall be measured and paid seperately

15mm bore

20mm bore

25mm bore

40mm bore

50mm bore

80mm bore

Taking up or down CI/DI pipe line and connections complete all as directed by the Engineer-in-Charge for the following sizes :- Note: Excavation shall be measured and paid seperately

100 mm bore

150 mm bore

S&F steel GI pipe, 'medium grade' ISI marked with all fittings laid in trenches complete all as specified and as directed for the following sizes:-

15mm bore

20mm bore

25mm bore

40mm bore

50mm bore

80mm bore

Material and labour of DI pipe (Ductile iron pipe) spigot and socket ends, class "K-9" with rubber gasket (tighten joint) , laid in trenches including necessary cut to length to match the existing fitting/pipes or insertion of new DI specials complete all as specified and directed by the Engineer-in-charge for the following sizes :- Note: DI specials shall be measured and paid seperately

100 mm bore

150 mm bore

S & F in repairs of Gun - metal, globe or gate valve with iron wheel head, screwed both ends for iron pipes and for unions complete all as specified and directed for following sizes:-

50mm bore

40mm bore

25 mm bore

20mm bore

15 mm bore

Material and labour for DI specials such as bends, tees, collars, tail pieces, straight/angle connecting pieces any type (flanged ends, socketed ends or flanged/socketed ends) complete suitable for CI/DI mains of sizes upto 200 mm complete all as specified and directed.

Supply and fixing in repairs of CI sluice valve with drilled flanged ends, stainless steel spindle with gun metal working parts with hand wheel, pressure type PN 1.0 including disconnection and removing the unserviceable sluice valves from the existing pipe line/valve chamber for the following sizes complete all as directed by the Engineer-in-Charge :-

80mm bore

100 mm bore

150mm bore

200 mm bore

Dismantling the old valve pit chamber and construct valve chamber 1000x1000x1000 mm (internal ) with PCC block masonary valve chamber, PCC foundation, plastering and necessary earth work in hard/ dense soil, MS sheet cover 3.15 mm thickness along with angle iron frame of size 40 x 40 x 6mm with locking arrangement with necessary fixing materials like hinges, nut/bolts etc (valve chamber cover shall be opened in two halves) and painting to MS cover with applying two coats of synthetic enamel paint over a coat of red oxide etc all as specified and directed by Engineer-in-Charge.

All as per item No. 11.00 above but size of valve chamber is 1200x1200x1200mm (internal)

M & L for road/path cutting for laying of GI pipes upto required depth n. exc 1.5 mtr complete all as directed by Engineer-in-Charge.

M & L for boring of holes 150mm dia under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine complete all as directed by Engineer-in-Charge.

M & L for cement concrete in road surfacing, filling and mass concrete type B1, 1:2:4 (20mm graded stone aggregate) for repairs to road cutting for laying of pipe lines/complete all as directed by Engineer-in-Charge.

S&F in repairs of CI foot valve 80mm dia ISI marked with all fittings complete all as directed by the Engineer-in-Charge

S&F in repairs of PVC foot valve 50mm dia ISI marked with all fittings complete all as directed by the Engineer-in-Charge

S&F in repairs of PVC foot valve 40mm dia ISI marked with all fittings complete all as directed by the Engineer-in-Charge

S&F in repairs of PVC foot valve 25mm dia ISI marked with all fittings complete all as directed by the Engineer-in-Charge

M&L for rectification of existing defective run lead joints including burning and removing the old defective lead joints and providing new lead joints with all required materials and testing the joints for leakages of the following pipes complete including excavation, returining and filling etc.all as directed by Engineer-in-charge.

150mm dia bore CI pipe

100mm dia bore CI pipe

80mm dia bore CI pipe

M&L for attending to break down of 200 to 350mm dia DI pipe line bursting/cracks including necessary excavation, dewatering the water accumulated at site, removal of broken pipe pieces of various lengths through gas cutting/manual cutting as per site requirement including removing out the damaged DI pipe and inserting necessary DI specials such as collar, nipple etc as required at site and providing of new joints as required at site, clamping arrangements, PCC work including testing for the leakages pipes complete all as specified and directed by Engineer-in-Charge.

Material and labour for repairing of valve pit chamber of any size by taking down the old plaster and rendering 10mm thick in 1:4 finished even & smooth mixed with water proof liquid in complete surface of valve pit and preparing of old steel surfaces and painting to MS cover with two coats of synthetic enamel paint with over one coat red oxide including removing debris/ sludge etc from valve chamber all as specified and directed by Engineer-in-Charge.

Material and labour for repairing of valve pit chamber of any size by taking down the old plaster and rendering 10mm thick in 1:4 finished even & smooth cement plaster in complete surface of valve pit and preparing of old steel surfaces and painting to MS cover with two coats of synthetic enamel paint over a coat of red oxide including removing debris/ sludge etc from valve chamber all as specified and directed by Engineer-in-Charge.

Cutting green growth / vegetation growth for cleaning out the area by cutting up root, unwanted plants/bushes and removal the same to a distance not less than 50 mtr directed by Engineer-in-Charge.

S&F in repair saddle piece made out of MS flat iron of size 50 x 6mm duly welded with 25 to 50mm dia GI socket and 2 Nos nut/bolts of suitable size/length, necessary rubber packing for branch connections for the sizes of 80 to 150mm dia CI/DI mains complete including necessary earth work all as directed by the Engineer-in-Charge.

Supply and fixing in repair of CI butterfly valve, heavy duty with necessary packing materials, nut/bolts & washers etc including disconnection and removing the unserviceable butterfly valve from the existing pipe line/valve chamber for the following sizes complete all as directed by the Engineer-in-Charge:-

80mm bore

100mm bore

150mm bore

S&F in repairs of CI foot valve 150mm dia ISI marked with all fittings complete all as specified and directed by Engineer-in-Charge.

S&F in repairs of ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball screwed for iron pipe of size 50mm dia with complete accessories all as directed. Make : Prayag/Water-Tec (Polytub)

All as per item No.28 above but of size 40mm dia

All as per item No.28 above but of size 25mm dia

All as per item No.28 above but of size 20mm dia

National Rewinding Works

M/S TANUSHREE CONSTRUCTION COMPANY

KRISHNA CONSTRUCTION COMPANY

Rasam Engg Co.