REPAIR REPLACEMENT AND MAINTENANCE OF CI DI PIPE LINES AT NORTH ZONE UNDER GE S BINNAGURI

Amount

Excavation in trenches n exc 1.5 mtr wide and n.exc 1.5 mtr deep for pipe line in any type of soil, getting out and leveling of bottom surface to required level complete all as specified.

Returning filling in , including spreading, leveling, watering and well ramming in layers not exc 25cm thick complete all as specified.

Removing excavated material from site to a distance not exc 50 mtr away and depositing where directed not exc 1.5 mtr from the starting point complete all as specified.

Taking up old cast iron water mains 250mm bore (dia) with all fittings with spigot and socket ends and lead joints inclunding burning out joints etccomplete all as specified.

All as per item No 04 above but of size 200 mm bore complete all as specified.

All as per item No 04 above but of size 150 mm bore complete all as specified.

All as per item No 04 above but of size 100 mm bore complete all as specified.

All as per item No 04 above but of size 80 mm bore complete all as specified.

S&F for Ductile Iron pipes 250mm bore with spigot and socket ends ,Rubber gas kit as per IS- 8329,internal lining with cement mortor class K-7 in any length laid in trenches including all necessary fittings such as bend, reducer,tee socket etc complete all as specified.

All as per item No 09 above but of size 200 mm bore complete all as specified

All as per item No 09 above but of size 150 mm bore complete all as specified

All as per item No 09 above but of size 100 mm bore complete all as specified

All as per item No 09 above but of size 80 mm bore complete all as specified

Refixing old cast iron/ ductile iron water mains obtained from dismantling 250mm bore (dia) with all fittings with spigot and socket ends complete all as specified.

All as per item No 14 above but of size 200 mm bore complete all as specified

All as per item No 14 above but of size 150 mm bore complete all as specified

All as per item No 14 above but of size 100 mm bore complete all as specified

All as per item No 14 above but of size 80 mm bore complete all as specified

S & F CI pipe fitting such as bend, reducer , socket, Tee etc of various size complete all as specified.

Supply and fix CI sluice valve Cast iron 250mm bore PN-1.6 flanged end conforming to IS -14846 with CI wheel, brass spindle, chuck nuts, rubber gasket, bolts (full threded), nuts & washers including joints complete all as specified and directed including dismantling and taking down of old unserviceable CI Sluice valve from existing position complete all as specified.

All as per item No 20 above but of size 200 mm bore complete all as specified

All as per item No 20 above but of size 150 mm bore complete all as specified

All as per item No 20 above but of size 100 mm bore complete all as specified

All as per item No 20 above but of size 80 mm bore complete all as specified

Supply and fix lever operated Wafer butterfly valve IS-13095 ,PN-1.6,150mm bore single disc type with complete accessories such as rubber gasket, bolts (full threded), nuts & washers including joints for the following sizes complete all as specified and directed including dismantling and taking down of old unserviceable valve from existing position complete all as specified.

Supply and fix Brass Spindle for sluice valve of size 250 mm complete all as specified and directed by Engr in Charge including dismantling and taking down of old unserviceable spindle complete all as specified.

All as per item No 26 above but of size 200 mm bore complete all as specified

All as per item No 26 above but of size 150 mm bore complete all as specified

All as per item No 26 above but of size 100 mm bore complete all as specified

All as per item No 26 above but of size 80 mm bore complete all as specified

Dismantling existing unserviceable valve pits and construction of new brick masonry valve pits of size 1200x1200x1200mm (internal dimension) with brick work in cement mortar (1:4) 40mmx40mm x6 mm angle iron frame, MS handle 300mm long, bent to shape and riveted to MS sheet including excavation and earth work, concrete work 3.15 mm thick MS sheet cover with locking arrangement hinges and handle rendering work, painting to all steel surfaces with two coats red oxide primer complete all as specified

All as per item No 31 above but of size 900x900x900mm (internal dimension) complete all as specified

M&L for providing cement concrete type D2(1:4:8) using 40 mm graded stone aggregate in foundation of pole for supporting of pipe linecomplete all as specified.

M&L burning out Lead Joint in Cast Iron Pipes 80mm bore (dia) in Position including recovering old Lead, complete all as specified.

All as per item No 34 above but of size 100 mm bore complete all as specified

All as per item No 34 above but of size 150 mm bore complete all as specified

All as per item No 34 above but of size 200 mm bore complete all as specified

All as per item No 34 above but of size 250 mm bore complete all as specified

Supply only run lead joints for pipes and fittings (spigot and socket ends) 80 mm bore (dia) and testing complete all as specified.

All as per item No 39 above but of size 100 mm bore complete all as specified

All as per item No 39 above but of size 150 mm bore complete all as specified

All as per item No 39 above but of size 200 mm bore complete all as specified

All as per item No 39 above but of size 250 mm bore complete all as specified

Supply and fix valve ( NRV ) reflux flanged end of size 150 mm dia incl making necessary joints dismantalling and taking out old u/s NRV complete all as specified.

All as per item No 44 above but of size 100 mm bore complete all as specified

Labour only for attending break down of pipe line bursting / cracks and including cleaning / removal, Earth work Excavation /filling of broken pipe pieces of various lengths through gas cutting / manual cutting as per site requirement and including by using suffient dewatering pumps, and directed by the Engineer -in - Charge. Note 1 :- The quoted rate is deemed to be include the following:- (i) Arrangement of suitable Pump sets for dewatering at the time of attending break down (ii) Necessary labour / trade men for attending break down. (iii) does not include Labour element required for fixing CI/DI/MS pipes, specials, fittings etc. Note 2 :- M&L for Lead joints, supply only CI / DI / MS pipes, specials, fittings will be measured and paid seperately under relevant items of BOQ. (a) 80 mm bore CI/DI Pipe

(b) 100 mm bore CI/DI pipe complete all as specified

(c) 150 mm bore CI/DI pipe complete all as specified

(d) 200/250 mm bore CI/DI pipe complete all as specified

M & L for attending over head reservoir (HDPE/CI/DI) raising/drain out/over flow/ distribution pipe line 100 mm to 200 mm dia leakage complaint on the approx height of 12- 18 mtr OHT on breakdown call like pipe line bursting / cracks/ gasket leaking including cleaning / removal ,Earth work Excavation if any /filling of broken pipe pieces of various lengths through welding or gasket changing by poviding scaffolding up to the defective place under OHT all as specified and directed by the Engineer -in - Charge. Note 1 :- The quoted rate is deemed to be include the following:- (i) Arrangement of suitable height of scaffolding for repairing leakage pipe line by welding or gasket changing after drainout entair water from pipe lines while attending break down. (ii) Necessary labour / trade men for attending break down. Note 2 :- Lead joints, CI / DI / MS pipes, specials, fittings will be measured and paid seperately under relevant items of BOQ.

Supply and fix Cast Iron Air Release valve 200 mm bore, conforming to IS -14845 with double ball air release valve, the small orifice releasing air at the working pressure, the large orifice for dealing with large volume of air during pipe filling and empting. The body, pressure cover and splash cover are of graded cast iron, carefully machined and jointed. For small orifice valve , balla are rubber, air vent orifices of brass, screwed inlet nipple of gun metal. Large orifice valves have balls of vulcanite closing on rubber seating backed with leather rubber gasket, bolts (full threded), nuts & washers including joints complete all as specified and directed including dismantling and taking down of old unserviceable CI air release valve from existing position complete all as specified.

All as per item No 51 above but of size 150 mm bore complete all as specified.

Surface dressing in soft /loose soil not exeeding 15 cm deep, across the pipe lines etc, and including site clearence, cutting and cleaning of branches / bushes / plants / grass obstructing the pipe lines / valves / chambers / sumps / OHTs on either sides and water supply Installation area including disposal of materials up to a distance not exceeding 50 m complete all as specified.

CENTRAL ENGINEERING WORKS (BID ID -3119872)

S.N. GHOSH AND CO. (BID ID -3120169)

M/s. RAMPHAL GARG (BID ID -3120521)

S K GUHA (BID ID -3119856)

BBKundu (BID ID -3122915)

M/s D J Ghosh (BID ID -3122667)

L. B. SHARMA (BID ID -3120501)