REPAIR REPLACEMENT, MAINT OF CI GI DI AND PPR PIPE HDPE PIPE LINES AND ALLIED WORK AT INSIDE FW UNDER GE FW KOLKATA

Amount

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth for foundation or for shafts, wells cesspits, manholes etc., not exceeding 10 sqm on plan and getting out in soft/loose soils, complete all as specified and directed.

Returning filling in including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed.

Removing excavated material not exceeding 50 metre and deposited where directed at a level not exceeding 1.5 metre above the starting point in soil complete all as specified and directed.

Taking up/down CI/DI water mains and connections/fittings of any type from trenches /walls/floors/(or any other location) for replacement /reuse in old/new location/diversion by burning out /removing of lead joints/tyton joints/rubber gasket joint complete all as specified and directed for the following size of pipes :- (Note: Necessary earthwork, if any shall be measured and paid separately under relevant item.

80 mm bore

100 mm bore

150 mm bore

200 mm bore

Relaying of the following size CI/DI water mains after thoroughly cleaning, with new fittings fixed to wall/ceiling/floor or laid in trenches complete all as specified and directed for the following size of pipes :-

80 mm bore

100 mm bore

150 mm bore

200 mm bore

Supply, laying, connecting and testing of ductile iron pipe, spigot and socket/ flanged ends, class K-7 in standard working length conforming to IS-8329 laid in trenches, complete all as specified and directed for the following size :-

Burning out lead joints in position of cast iron pipes, fittings and re-making joints using old retrieved lead with & including necessary earth work as required at site, complete all as specified and directed for following size of pipes :-

80mm bore

100mm bore

150mm bore

200mm bore

Note for Item No 7.01 to 7.04: In case, inadequate lead is retrieved from burning out, for remaking joints, additional lead required shall be measured and paid separately as "Supply only".

Supply only lead confirming to IS 782 complete all as specified and as directed.

S&F CI bends upto 150 mm bore (any type, radius and angle) taper any type (straight, bend, increasing, decreasing or double socket etc) tee pieces, 'Y' junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs complete all as specified and as directed.

S&F DI bends upto 150 mm bore (any type, radius and angle) taper any type (straight, bend, increasing, decreasing or double socket etc) tee pieces, 'Y' junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs complete all as specified and as directed.

Taking up or down GI Steel Water Tubing including Connections and Fittings, Segregating Serviceable Pipes & Fittings, Stacking properly at Site(s) and keep in Safe Custody for re-use, complete all as specified and as directed for the following size of pipes :-

100mm bore

80mm bore

50mm bore

40mm bore

25mm bore

20mm bore

15mm bore

Relaying/Re-fixing Galvanised Steel Tubing and Connections in New or Old Position (Serviceable Pipes obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush, with new fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc., laid in trenches complete all as specified and as directed for the following size of pipes :-

100mm bore

80mm bore

50mm bore

40mm bore

25mm bore

20mm bore

15mm bore

Relaying/Re-fixing Galvanised Steel Tubing and Connections in New or Old Position (Serviceable Pipes obtained from taking down item) after Cleaning both Inner and Outer Surfaces of Pipes by using of Wire Brush with new fittings such as bends, tees, elbows, reducers, unions, plugs, sockets etc., fixed to walls and ceilings or laid in floors complete all as specified and as directed for the following size of pipes :-

100mm bore

80mm bore

50mm bore

40mm bore

25mm bore

20mm bore

15mm bore

Supply, Laying and testing Steel Water Tubing, Galvanised, ‘Medium Grade’ with all Fittings, such as bends, tees, elbows, reducers, unions, plugs, sockets etc., laid in trenches/floors or fixed on walls/ceilings or concealed walls, ducts/ceilings, complete as all specified and as directed for the following size of pipes :-

100mm bore

80mm bore

50mm bore

40mm bore

25mm bore

20mm bore

15mm bore

Supply, laying and testing of 3- layer PP-R Polypropylene random copolymer) pipes SDR 11/PN 16UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches/floors/ or fixed on walls/ceilings complete all as specified and directed for the following size of pipes :-

110mm outer dia

90mm outer dia

63mm outer dia

50mm outer dia

32mm outer dia

25mm outer dia

20mm outer dia

S&F PPR gate valve with brass insert and brass working parts as per IS, for PPR pipes or for unions as in repairs, complete as all specified and as directed for the following size of pipes :-

90mm outer dia

63mm outer dia

50mm outer dia

32mm outer dia

25mm outer dia

20mm outer dia

S&F Cast Iron Sluice valve of Class PN-1.6 long body type, heavy duty, ISI marked (IS 1538) flanged end with iron wheel and brass spindle including rubber gasket joints, nuts, bolts etc as in repair complete all as specified and directed for the following size of pipes :-

80 mm bore

100 mm bore

150 mm bore

200 mm bore

S&F in repairs, butterfly valve in DI body with stainless steel disc & stem, nitrile/eqpt liner, ISI marked, lever operated with necessary rubber gaskets, nuts and bolts and washers of suitable size complete all as specified and directed for the following size of pipes :-

40mm bore

50mm bore

80mm bore

100mm bore

150mm bore

200mm bore

S&F in repair, Cast Iron non-return valve, with bypass arrangement, ISI marked, with flanged ends including rubber gasket joints, nuts, bolts etc complete all as specified and directed for the following size of pipes :-

80 mm bore

100 mm bore

150 mm bore

200 mm bore

S&F in repair, Cast Iron foot valve/ stainer ISI marked, with and including necessary nuts, bolts, washers etc and cutting threading of GI pipe if required and lowering in the sump, complete all as specified and directed for the following size of pipes :-

100 mm bore

150 mm bore

200 mm bore

S&F in repair, 100 mm bore, double orifice air release valve in CI body, ISI marked including rubber gasket joints, nuts, bolts etc complete all as specified and directed.

S&F in repair, 50 mm bore, gun metal check valve, ISI marked including rubber gasket joints, nuts, bolts etc complete all as specified and directed.

S&F Gun metal gate valve as per IS : 778-84 Class-1 Pressure tested 2.4 Mpa with iron wheel head, screwed both ends for iron pipes or for unions as in repairs, complete as all specified and as directed for the following size of pipes :-

50 mm bore

40 mm bore

25 mm bore

20 mm bore

S&F CI butterfly valve, BS-5155 Gear operated with necessary rubber gaskets, nuts and bolts and washers of suitable size as in repair complete all as specified and directed for the following size of pipes :-

80mm bore

100mm bore

150mm bore

200mm bore

M&L preparation of old painted surfaces of CI/DI pipe lines, including valves of any type or size, at various pump houses and applying one coat of synthetic enamel paint (colour/shade as approved by Engr-in-Charge) and marking the water flow directions on pipe lines complete all as specified and as directed for the following sizes :-

50 mm bore pipe

80 mm bore pipe

100 mm bore pipe

150 mm bore pipe

200 mm bore pipe

M&L for cutting of road/hard standing not exc 30cm in width and not exc 60cm in depth for removal/laying of water tubing including returning filling and making good the disturbed surfaces with PCC 1:2:4 type B1 using 20mm graded aggregates, 100 mm thick, on top, finishing surfaces even and smooth without using extra cement complete all as specified and directed.

Collection of water samples from different water supply installations and water treatment plant under Fort William Area in a special sterilized container and submitting to test laboratory for Bacteriological/Chemical analysis as detailed here-in-after and obtain test result from lab incl submitting to Engineer-in-Charge as directed. Nature of Tests :- 1.Colour, Hazen Units 2. Odour 3. PH 4. Taste 5. Total Dissolved Solids 6. Turbidity, NTU 7. Ammonia (as Total Ammonia) 8. Aluminium (as Al) 9. Anionic detergents (as MBAS) 10. Barium (as Ba) 11. Boron (as B) 12. Calcium (as Ca) 13. Chloroamines (as Cl2) 14. Chloride (as Cl) 15. Copper (as Cu) 16. Fluoride (as F) 17. Free residual chlorine 18. Iron (as Fe) 19. Magnesium (as Mg) 20. Manganese (as Mn) 21. Mineral Oil 22. Nitrate (as NO2) 23. Phenolic compounds (as C2, H2, OH) 24. Selenium (as Se) 25. Silver (as Ag) 26. Sulphate (as SO2) 27. Total alkalinity (as calcium carbonate) 28. Sulphide (as H2, S) 29. Total hardness (as CaCO3) 30. Zinc 31. Arsenic 32. E-Coli 33. Total Coliform (NOTE: Testing shall be carried out at NTC/Jadavpur University/RV Briggs & Co Pvt Ltd Kolkata or any other Govt approved laboratory with prior approval of GE)

Construction of valve chamber of size 750x750x750mm internal size suitable for housing sluice valve/ gate valve etc with PCC 1:4:8 type D2 for foundation 15mm thick with an offset of 5 cm on all sides, brick work in CM 1:4 230mm thick rendering in CM 1:4, 15mm thick, 5 cm thick & 230mm wide PCC 1:2:4 type B1 coping over brick work all around including provision of MS angle iron frame 25x25x3mm embedded in concrete with suitable hinges 3mm thick MS sheet cover and locking arrangements including two coats of synthetic enamel paint over a coat of red oxide metal primer on exposed steel surfaces including demolition of existing damaged valve chamber and necessary excavation & earth work etc all as specified and directed

M&L Framed Work such as brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles as necessary, gusset plates, riveting, etc. conforming to Fe-290, Gde-E-165, as in repairs, complete all as specified and as directed.

Supply, hoisting and fixing rotational moulded polyethylene water storage tank (cylindrical vertical type with closed top) of capacity 5000 Litres, multi-layered (ISI marked), with GI tank nipple & cover, hoisted and fixed in position all as specified in SSR Part-I incl dismantling of existing unsv tank complete all as specified and directed.

Supply, hoisting and fixing rotational moulded polyethylene water storage tank (cylindrical vertical type with closed top) of capacity 2000 Litres, multi-layered (ISI marked), with GI tank nipple & cover, hoisted and fixed in position all as specified in SSR Part-I incl dismantling of existing unsv tank complete all as specified and directed.

S&F in repair 40 mm bore Ball brass valves, high pressure, with HDPE float and flynut complete, screwed for iron pipe or brass ferrule and fixed complete all as specified and directed. (MAKE : PRAYAG, Cat No. B-155 or equivalent model in JEXON / POLYTUF / SHAKTI)

S&F in repair 25 mm bore Ball brass valves, high pressure, with HDPE float and flynut complete, screwed for iron pipe or brass ferrule and fixed complete all as specified and directed. (MAKE : PRAYAG, Cat No. B-153 or equivalent model in JEXON / POLYTUF / SHAKTI)

M&L plain cement type C2(1:2:4) using 20mm graded aggregate) as in foundation, filling mass concrete cement, complete all as specified and directed.

M&L brick work with flash bricks (old size bricks, straight or curved on plane exc 6.0 meter mean radius, built in cement mortar 1:6 complete all as specifed and as directed.

M&L rendering 10mm thick on brick on concrete surface in cement mortar (1:6) finished even and smooth without using extra cement compete all as specified and as directed.

Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ________ mentioned on Page No ____ shall be deducted from the total quoted amount of BOQ.

MS HORIZEN

M A ENTERPRISES

GHOSH ENTERPRISE