REPAIR MAINTENANCE OF EXTERNAL WATER SUPPLY OF MAIN DISTRIBUTION LINE ALONGWITH SLUICE VALVES VALVE CHAMBER AND CONNECTED ELECTRICAL ITEMS UNDER GE NORTH KOLKATA

Amount

Excavation in trenches, n exc 1.5 m wide or n exc 10 sq m on plan and n exc 1.5 m in depth for foundation etc and getting out in soft / loose soil for taking out pipe line complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in Soft/loose soil complete all as specified.

Removing excavated materials not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified.

Cutting hard standing / road for laying of pipe, not exc 30 cms wide and not exc 30 cms deep, and getting out in soft/loose soil, etc complete all as specified and as directed.

Material and labour for PCC (1:3:6) type C-2 (using 40 mm graded stone aggregate) not exc 30 cm wide and not exc 30 cm for filling and making good of disturbed surfaces of road/hard standing etc complete all as specified and as directed.

Material and labour in replacement rubber gasket joint (tyton joint) for ductile iron pipe, up to 100mm bore with all material including testing complete all as specified and directed .

Supply and fix in repairs rubber insertion/gasket, 6mm thick for 150mm dia pipe joints complete all as specified and as directed.

S & F 80 mm bore cast iron sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged, with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts, bolts, washers and gasket etc and testing complete including taking down old unserviceable sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

All as per item No 8 above, but for size 100 mm bore including taking down old unserviceable sluice valve complete all as specified and as directed.

All as per item No 8 above, but for size 150 mm bore including taking down old unserviceable sluice valve complete all as specified and as directed.

S & F 100 mm bore Diapharm valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged, with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

S & F 80 mm bore Diapharm valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

S & F 50 mm bore Diapharm valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

S & F 100 mm bore cast iron butterfly valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

All as per item No 14 above, but for size 80 mm bore including taking down old unserviceable sluice valve complete all as specified and as directed.

S & F 80 mm bore cast iron Non Return sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable Non Return sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

S & F 100 mm bore cast iron Non Return sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts, bolts, washers and gasket etc and testing complete including taking down old unserviceable Non Return sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

S & F 150 mm bore cast iron Non Return sluice valves, Non rising type, (ISI marked) PN 1.6 conforming to IS-14846/2000, both end flanged,with stainless steel spindle, iron hand wheel including all necessary fixing and jointing arrangement such as MS nuts,bolts, washers and gasket etc and testing complete including taking down old unserviceable Non Return sluice valve complete all as specified and as directed. Make: KALPANA / UPADHYA / Zoloto / Leader.

Dismantling for repairing of existing unserviceable 80 mm bore sluice valve without disturbing normal water supply and replacement of unserviceable stainless steel spindle with lock nuts & gland packing (Rubber gasket) cover with adjustable bolts and nuts (Two No’s) including refixing and testing complete all as specified and as directed.

All as per item No 19 above but size 100 mm bore complete all as specified and as directed.

All as per item No 19 above but size 150 mm bore complete all as specified and as directed.

Material and labour for construction of brick masonary valve pit of size 600 x 600 x 600mm (Internal dimension) with excavation and earth work , RFR and removal of surplus spoil as required, in any type of soil, PCC 1:4:8 Type D2 as in foundation,100 mm thick, Brick masonry wall built in cm 1 :6, PCC 1:2:4 type B1 for coping 50 mm thick, including use and waste of formwork, Rendering in CM 1:4, 15 mm thick both side, finished even and smooth for inner side without using extra cement and fair and even from outer side including provision of MS sheet cover fabricated out of 3 mm thick sheet with angle iron frame made out of 40 mm x 40 mm x 6 mm with hold fast to secure the frame, locking arrangements, handle of suitable size and preparing new steel and iron surfaces and applying two coats of synthetic enamel paint (first quality) over a coat of zinc chrome primer and applying 3 coats of white wash to new plastered /concrete surfaces including preparation of surfaces complete all as specified and as directed.

All as per Item No:22 above, but of size (1000 x 1000 x 1000mm ( internal dimension) complete all as specified and as directed. .

All as per Item No:22 above, but of size (900 x 900 x 900mm ( internal dimension) complete all as specified and as directed. .

Material and labour for fabrication and fixing of valve chamber cover, made out of 3 mm thick MS sheet including mild steel angle iron (40X40X6mm) suitable for valve pit of size 900 x 900mm (internal dimension) with required hinges and welded to frames and locking arrangement and painted with two coats of synthetic enamel paint over a coat of red-oxide zinc chrome primer to steel surfaces including taking out old damaged MS cover with frame complete all as specified and as directed.

All as per item No 25 above but for size 1000 x 1000mm (internal dimension) valve pit complete all as specified and as directed.

All as per item No 25 above but for size 600 x 600mm (internal dimension) valve pit complete all as specified and as directed.

S & F cast iron foot valve 150mm dia with purposefully made steel clamp, screws, washers etc including taking out unserviceable valve complete all as specified and as directed. Make: KALPANA / RAMCO / UPADHYA

All as per item No 28 above but for 100mm dia complete all as specified and as directed.

All as per item No 28 above but for 80mm dia complete all as specified and as directed.

Taking down cast Iron/DI water mains 80mm bore (including all fittings), with spigot and socket ends and lead joints including burning out joints for recovering lead including stacking of serviceable pipes aside complete all as specified and as directed.

All as per item No 31 here in before but for 100mm bore of pipe complete all as specified and as directed.

All as per item No 31 here in before but for 150mm bore of pipe complete all as specified and as directed.

Relaying of old serviceable cast iron/ DI pipe 80 mm bore obtained from serial no 31 here in before with spigot and socket ends in new or old position in any length, laid in trenches after cleaning of inner surface and applying with two coats of black bituminous paint (sutiable for drinking water purpose) including testing complete all as specified and directed.

All as per item No 34 here in before but for 100 mm bore obtained from serial no 32 above complete all as specified and directed.

All as per item No 34 here in before but for 150 mm bore obtained from serial no 33 above complete all as specified and directed.

Supply, laying and jointing of ductile iron pipes of 150 mm bore with spigot and socket ends sutiable for tyton joint (Rubber gasket joint) centrifugally cast class (k-9) for drinking water supply, inner side cement lining outer side black bitumen coating and any lenght, laid on RCC pillars or trenches/wall including testing, jointing with jointing materials with ISI marked complete all as specified and directed.

All as per item No 37 here in before but for 100mm bore of pipe complete all as specified and as directed.

All as per item No 37 here in before but for 80mm bore of pipe complete all as specified and as directed.

Supply, laying MS pipe heavy duty with all fittings laid in floor or fixed to the walls or celling of size 150 mm bore including taking down of old unserviceable pipe from any position all as specified and directed

All as per item No 40 here in before but for 100mm bore of pipe complete all as specified and as directed.

All as per item No 40 here in before but for 80mm bore of pipe complete all as specified and as directed.

S & F in repair 20mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed (Minimum weight 210 gms) complete all as specified and directed.

S & F in repair 25mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed (Minimum weight 210 gms) complete all as specified and directed.

S & F PVC cover suitable for PVC water tank of any capacity and size including locking arrangement including removing broken / unserviceable PVC cover complete all as specified and directed.

Material & Labour for Run lead joints for 80mm bore cast iron pipes and fittings etc., (Spigot and Sockets) including testing complete all as specified and as directed.

All as per Item No 46 here in before but for 100mm bore pipes complete all as specified and directed.

All as per item No 46 here in before but for 150mm bore of pipe complete all as specified and directed.

Taking out from trenches or taking down from wall GI steel tubing and connections, 20 mm bore, setting aside and cleaning the serviceable pipe for re-laying/ re-fixing or removal of unserviceable pipe from site of work complete all as directed.

All as per item No 49 here in before but for 25 mm bore of pipe complete all as directed.

All as per item No 49 here in before but for 40 mm bore of pipe complete all as directed.

All as per item No 49 here in before but for 50 mm bore of pipe complete all as directed.

Relaying of old serviceable GI pipe 20mm bore obtained from serial no 49 here in before with spigot and socket ends in new or old position in any length, laid in trenches after cleaning of inner surface and applying with two coats of black bituminous paint (sutiable for drinking water purpose) including testing complete all as specified and directed.

All as per item no 53 here in before but for 25 mm bore obtained from serial no 50 above complete all as specified and directed.

All as per item no 53 here in before but for 40 mm bore obtained from serial no 51 above complete all as specified and directed.

All as per item no 53 here in before but for 50 mm bore obtained from serial no 52 above complete all as specified and directed.

Supply and fixing 20 mm bore GI tubing, medium grade with all new fittings as required complete fixed to walls and ceilings or laid in floors/trenches including testing complete all as specified and directed.

All as per item No 57 here in before but for 25 mm bore of pipe complete all as specified and directed.

All as per item No 57 here in before but for 40 mm bore of pipe complete all as specified and directed.

All as per item No 57 here in before but for 50 mm bore of pipe complete all as specified and directed.

M&L for Minor leakage rectification work of water supply line for GI pipe of size ranging from 15 to 25mm complete within 4-6Hrs. of raised complain all as directed by Engr-in-Charge.

All as per item No.61 above but for 40/ 50mm bore GI pipe all as directed by Engr-in-Charge.

S & F gun-metal, gate valves, 20 mm bore, with iron wheel head, screwed both ends for iron pipe and fixed after taking down old unserviceable one complete all as specified & directed. Make : Audco/Laxmi/ Uphadhyay.

All as per item No.63 above but 25 mm bore complete all as specified & directed.

All as per item No. 63 above but 40 mm bore complete all as specified & directed.

All as per item No.63 above but 50 mm bore complete all as specified & directed.

Supply and laying 50 mm dia (outer), 3 layer PP-R polypropylene random copolymer pipes SDR 7.4(PN16) UV stabilised and anti-microbial fusion welded having thermal stability for hot and cold water supply including all PP-R plain & brass threaded polypropylene random fittings fixed complete in trenches including testing and taking down old unserviceable PP-R pipe complete all as specified and directed. Make: Savior faire Mfgh Co Pvt. ltd / Reliance / Vectus / Finolex / Supreme/ M/S Fusion Industries Ltd.

Supply and laying 40 mm dia (outer), 3 layer PP-R polypropylene random copolymer pipes SDR 7.4(PN16) UV stabilised and anti-microbial fusion welded having thermal stability for hot and cold water supply including all PP-R plain & brass threaded polypropylene random fittings fixed complete in trenches including testing and taking down old unserviceable PP-R pipe complete all as specified and directed. Make: Savior faire Mfgh Co Pvt. ltd / Reliance / Vectus / Finolex / Supreme/ M/S Fusion Industries Ltd.

Supply and laying 32 mm dia (outer), 3 layer PP-R polypropylene random copolymer pipes SDR 7.4(PN16) UV stabilised and anti-microbial fusion welded having thermal stability for hot and cold water supply including all PP-R plain & brass threaded polypropylene random fittings fixed complete in trenches/on wall, ceiling or laid in floor including testing and taking down old unserviceable PP-R pipe complete all as specified and directed. Make: Savior faire Mfgh Co Pvt. ltd / Reliance / Vectus / Finolex / Supreme/ M/S Fusion Industries Ltd.

Supply, hoisting and fixing in position Rotational moulded Polyethylene water storage tank, 2000 litres capacity conforming to IS-12701 (1989) cylindrical vertical type two-layered wall construction with closed top including inlet, outlet and wash out holes of approved make including taking down old unserviceable water storage tank complete all as specified and directed. (MAKE: Sintex/ Rotax/ Polycon/ Oriplast/ Tusker )

Supply, hoisting and fixing in position Rotational moulded Polyethylene water storage tank, 1000 litres capacity conforming to IS-12701 (1989) cylindrical vertical type two-layered wall construction with closed top including inlet, outlet and wash out holes of approved make including taking down the old unserviceable water storage tank complete all as specified and directed. (MAKE: Sintex/ Rotax/ Polycon/ Oriplast/ Tusker )

Supply, hoisting and fixing in position Rotational moulded Polyethylene water storage tank, 500 litres capacity conforming to IS-12701 (1989) cylindrical vertical type two-layered wall construction with closed top including inlet, outlet and wash out holes of approved make including taking down the old unserviceable water storage tank complete all as specified and directed. (MAKE: Sintex/ Rotax/ Polycon/ Oriplast/ Tusker )

S & F 200mm bore High density polyethylene pipes (HDPE) of pressure rating 6 kgf/cm2 fixed complete to walls, ceilings or in floors etc with both side flanged ends complete all as specified and directed

S & F 150mm bore PVC suction/Delivery hose pipe and connection to inlet/ outlet of pump alongwith male connector nipples, clamps, washers etc.complete all as specified and directed.

S & F 100mm bore PVC suction/Delivery hose pipe and connection to inlet/ outlet of pump alongwith male connector nipples, clamps, washers etc.complete all as specified and directed.

S & F 80mm bore PVC suction/Delivery hose pipe and connection to inlet/ outlet of pump alongwith male connector nipples, clamps, washers etc.complete all as specified and directed.

M & L for MS angle iron frame work of size 50 mm x 100mm x 50mm, 5 mm thick fixed to floor with suitable size of nut/bolts/washer by welding/drilling including painting with two coats of synthetic enamel paint over a coat of primer etc complete for fixing of monoblock/ centrifugal pump of any capacity all as directed by Engg in charge.

M & L for weather coat paint (first quality), one coat, on old plastered treated and other surfaces including preparation of surface of over head tank, UG Sump, pillar of different height etc complete all as specified and directed.

Material and labour mild steel work in the form of bars /angles/pipe including welding to fabricate frame / base channels of pump / supporting columns of rain pump delivery pipes etc complete all as specified and directed.

S & F 4mm dia galvanised steel wire, 150x100mm mesh, made up into mattresses or cages, lapped, wired and laid in position including closing after filling complete all as specified and directed.

S & F Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

S & F mild steel angle iron for post and struts in fencing including including cutting tops to shape as directed, drilling holes, notching for wire etc including all necessary drilling, bolting or riveting and fixing in concrete etc and similar work confirming to Fe-290 Gde E-165 complete all as specified and directed

M & L for Ductile iron fittings, class K-12 conforming to IS: 9523/2000 with finishing as per 13/IS 9523/2000 such as bends (any type radius and angle), tapers any type (straight, bend, increasing, decreasing or double socket etc ), tee pieces, single branch, "Y" junction, double branch cross (all socket or socket and spigot) collars caps and plugs etc sutiable for upto 150 mm bore including taking down/out old unserviceable fittings complete all as specified and directed.

Supply and fixing 80 mm bore GI tubing, medium grade with all new fittings as required complete fixed to walls and ceilings or laid in floors/trenches including testing after taking down old unserviceable pipe complete all as specified and directed.

Supply and fixing 100 mm bore GI tubing, medium grade with all new fittings as required complete fixed to walls and ceilings or laid in floors/trenches including testing after taking down old unserviceable pipe complete all as specified and directed.

M & L for brick work with sub class B Bricks, straight or curved on plain exc 6 m mean radius built in cement mortor 1:6 complete all as specified and directed.

M & L for Collecting portable water sample before and after treatement from different pump houses, in clean bottle from the locations as directed, for testing purpose of collected water for physical test, chemical test, as per relevant IS from any Govt approved laboratory or any other government recognized institute and submit the test report duly signed complete all as specified and directed.

KAY BEE ASSOCIATES

S C ROY AND CO

SEN ELECTRIC WORKS

S Majumder and Construction

RADHA ENTERPRISE

NUPUR CONSTRUCTION

CHOWDHURY SMALL INDUSTRIES