REPAIR MAINT OF EXTERNAL WATER SUPPLY OF MAIN DISTRIBUTION LINE ALONGWITH SLUICE VALVES, VALVE CHAMBER AND CONNECTED ITEMS AT MU CAMP AND CHORD LINE AREA OF KANKINARA AREA UNDER GE (NORTH) KOLKATA

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth and getting out in soft / loose soil for taking out pipe line etc 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 and directed.

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 and directed.

Cutting hard standing / road for laying of pip line etc 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 aggregate) not exc 30 cms wide and not exc 30 cms for filling and making good of disturbed surfaces of road/hard standing etc complete all as specified and as directed.

Supply and fix in repairs rubber insertion/gasket 6mm thick for upto 200mm dia pipe joints flanged type complete all as specified and as directed.

Supply and fix in replacement 80 mm bore cast iron sluice valves, (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 7 above, but for size 100 mm bore complete all as specified and as directed

All as per item No 7 above, but for size 150 mm bore complete all as specified and as directed

Supply and fix in replacement 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.

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.

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 12 above but size 100 mm bore complete all as specified and as directed.

All as per item No 12 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: 15 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 17 above but for size 600 x 600mm (internal dimension) valve pit complete all as specified and as directed.

S & F cast iron foot valve 100mm 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 19 above but for 80mm dia complete all as specified and as directed.

Supply & Fixing in replacement 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. (MAKE: Prayag/ as specified in PS)

Supply & Fixing in replacement 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 455 gms) complete all as specified and directed. (MAKE: Prayag / as specified in PS)

Supply and Fixing the 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 upto 150mm bore cast iron pipes and fittings etc., (Spigot and Sockets) including testing complete all as specified and as 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 25 here in before but for 25 mm bore of pipe complete all as directed.

All as per item No 25 here in before but for 40 mm bore of pipe complete all as directed.

All as per item No 25 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 25 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 29 here in before but for 25 mm bore obtained from serial no 26 here in before

All as per item no 29 here in before but for 40 mm bore obtained from serial no 27 here in before

All as per item no 29 here in before but for 50 mm bore obtained from serial no 28 here in before

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 33 here in before but for 25 mm bore of pipe complete all as specified and directed.

All as per item No 33 here in before but for 40 mm bore of pipe complete all as specified and directed.

All as per item No 33 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.37 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.39 above but 25 mm bore complete all as specified & directed.

All as per item No. 39 above but 40 mm bore complete all as specified & directed.

All as per item No.39 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 / Vectus / M/S Fusion Industries Ltd/KPT

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 / Vectus / M/S Fusion Industries Ltd/KPT

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 / Vectus / M/S Fusion Industries Ltd/KPT

Supply and fixing PP-R gate valve (brass insert) as per site requirement of size 32 mm bore including taking down old unserviceable valve complete all as specified and directed. Make:- Savior faire Mfgh Co Pvt. ltd / Vectus / M/S Fusion Industries Ltd/KPT

Supply and fixing PP-R gate valve (brass insert) as per site requirement of size 40 mm bore including taking down old unserviceable valve complete all as specified and directed. Make:- Savior faire Mfgh Co Pvt. ltd / Vectus / M/S Fusion Industries Ltd/KPT

Supply and fixing PP-R gate valve (brass insert) as per site requirement of size 50 mm bore including taking down old unserviceable valve complete all as specified and directed. Make:- Savior faire Mfgh Co Pvt. ltd / Vectus / M/S Fusion Industries Ltd/KPT

Taking down cast Iron/DI water mains 100mm 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 49 above but for 150mm bore of pipe complete all as specified and directed.

Relaying of old serviceable cast iron/ DI pipe 100 mm bore obtained from serial no 19 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 51 above but for 150 mm bore 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.

Supply, laying and jointing of ductile iron pipes of 100 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.

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 )

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 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.

Supply and fix MS ERW 100 mm pipe with all new fittings as required, fixed to walls and ceilings or laid in floors/trenches complete all as specified and as directed

Material and labour for Ductile iron Fittings/CI 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 complete all as specified and directed.

Dismantling fencing wire mesh, any type complete all as specified and directed.

Dismantling posts or struts (wood, steel or R.C.C.) embedded in concrete any section, including taking out embedded portion and making good disturbed ground and disposal of debris from the premises complete all as specified & directed.

Excavating in post holes (or similar holes) each n exc 0.5 cu. m, getting out, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm, in soft/loose soil complete all as specified & directed.

Supply and fix rolled mild steel Fe-410 (Grade E-250A) angle or tee section as in post, cut to length and bend to shape as directed, fixed independetly without connecting plate etc, including provision of 05 to 06 Nos gaps/cuts/holes in each post for providing/laying barbed wire and one coat of red oxide zinc chrome primer after preparation of new steel surfaces complete all as specified and as directed. (Note :- Supply and fix barbed wire shall be measured and paid separately)

Supply and fix mild steel wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes,notching for wire,etc.; flat iron fillets( for securing wire mesh etc.) including all necessary dilling , bolting or riveting etc; and similar work conforming to Fe-290 Gde E-165.complete all as specified and directed.

Supply and fix mild steel 5 to10 mm diameter of shank screw bolts (machine made) with hezagonal 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, length of bolt exc 5 cm and n.exc 10 cm long complete all as specified and directed.

S&F MS 10 mm dia round bars (Fe-410-W (Gde E-250 quality-A or Fe 290 (Gde - E-165)) as line wire for holding chain link mesh including applying two coats of synthetic enamel paints over a coat of red oxide zinc chrome primer complete all as specified and directed.

Supply and fixing Galvanised. 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails straining bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. (each line wire to be measured) complete all as specified and directed.

Supply chain link fencing 50 mm x 50 mm mesh 4 mm thick, made out of mild steel galvanised hot drip wire including provision of binding wire complete all as specified and directed.

Fixing only chainlink fencing including line wires , any mesh , size and type to any type of standards , rails , straining bolts etc including provision of binding wire complete all as and as directed .

Material and labour for two coats of synthetic enamel paint (silver colour) over a coat of red oxide zinc chrome primer to new steel surface including preparation of surfaces exceeding 10cm with or girth complete all as specified and as directed.

Material and labour for two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer to new steel surface including preparation of surfaces not exceeding 10cm with or girth complete all as specified and as directed.

Surface excavation n.exc (not exceeding) 30 cm deep and averaging 15cm deep and getting out in soft/loose soil complete all as specified and as directed.

M&L for hardcore of broken stone or boulders of gauge n.exc.63mm deposited, spread and levelled in layers n.exc. 15cm thick, watered/well rammed to a true surface complete all as specified and directed.

Material and labour for 100mm thick PCC type D2 (1:4:8) using 40mm garded stone aggragate as in , sub-base of floors etc complete all as specified and as directed.

M&L for sand filling under floors or in foundations including watering and consolidation complete all as specified and directed.

Material and labour for Machine pressed precast conctete interlocking paver block any shape and size confirming to IS 15658-2006 of 80 mm thickness, M-40 grade, with grey cement and pigments and laid over sand cushoning complete all as specified and as direded.

S.P. SINGHA (BID ID -3330705)

MASTER BUILDERS (BID ID -3328705)

SHIVAM ENTERPRISE (BID ID -3330594)

Kanta International (BID ID -3327653)

M/S. RISING ENTERPRISE (BID ID -3331951)

DSL ENGINEERING & CONSTRUCTION (BID ID -3326183)