REPAIR/ MAINT/ REPLACEMENT OF EXTERNAL WATER SUPPLY DISTRIBUTION SYSTEM, CLEANING OF UG SUMPS, CENTRIFUGAL/ SUBMERSIBLE PUMP SETS AND CONNECTED WORKS AND REPAIR/MINT OF PUMP SETS AND OTHER ALLIED WORKS AT VSV AND TECH AREA, AF STN NAJAFGARH UNDER GE

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth for removing / laying of pipe lines, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out getting out for removing / laying of pipe lines complete all as specified and directed by Engr-in-Charge.

Returning and filling including spreading, levelling, watering and well ramming in layers not exceeding 25 Cm thick complete all as specified and directed by Engr-in-Charge.

Removing of surplus soil to a distance not exceeding 50 Mtrs and depositing where directed at a level not exceeding 1.5 Mtr above the starting point complete all as specified and directed by Engr-in-Charge.

M&L for PCC (1:2:4) type B-1 using 20mm graded stone aggregate as in floor / hard-standing, surface finished even and smooth without using extra cement to match with the existing surface complete all as specified and directed by Engr-in-Charge.

M&L complete for drilling hole of 150mm dia under hard standing /road for laying of pipe by means of manual buckle and without disturbing the top surface and making good the disturbed surface if any complete all as specified and directed by Engr-in-Charge.

Dismantling and taking down unserviceable steel tubing and connection incl cleaning the same for re-fixing or removal with stop valves or gate valves complete all as specified and directed by Engr-in-Charge of the following sizes:-

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

80 mm dia

100 mm dia

Taking up Cast / Ductile iron water mains (including all fittings) with spigot and socket ends and lead joints including burning out joints and recovering lead of size 80 mm dia bore complete all as specified and directed by Engr-in-Charge.

Taking up Cast / Ductile iron water mains (including all fittings) with spigot and socket ends and lead joints including burning out joints and recovering lead of size 100 mm dia bore complete all as specified and directed by Engr-in-Charge.

Supply, Laying, jointing and testing of GI tubing medium grade with all fittings such as bend, tee, elbow, union, reducer etc, laid in trenches complete all as specified and directed by Engr-in-Charge of the following sizes: - Note: (i) The laying and jointing of pipes are required to be carried out in short/long stretches catering to specific requirements of a particular quarter, building block or a group of blocks. (ii) Excavation & earth work shall be measured & paid separately.

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

80 mm bore

100 mm bore

S & F in replacement of cast iron pipes with spigot and socket ends centrifugally cast 80 mm dia size class LA, in any length laid in trenches including jointing materials complete all as specified and directed by Engr-in-Charge. Note: Earth work and CI fittings measured and separate items

S & F in replacement of cast iron pipes with spigot and socket ends centrifugally cast 100 mm dia size class LA, in any length laid in trenches including jointing materials complete all as specified and directed by Engr-in-Charge. Note: Earth work and CI fittings measured and separate items

S & F CI fittings for spigot and socket pipes such as bends (any type, radius and angle) tapers any type, (straight, bend increasing, decreasing or double socket etc) Tee pieces single branch, single branch, 'Y' junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs upto 150mm dia bore complete all as specified and directed by Engr-in-Charge.

Supply, Laying, jointing and testing of GI Pipe medium grade incl supply and fixing of all fittings such as bend, tee, elbow, union, reducer etc, laid on floor / walls etc complete all as specified and as directed at site by Engr-in-charge of the following sizes:- Note: (i) The laying and jointing of pipes are required to be carried out in short / long stretches catering to specific requirements of a particular quarter, building block or a group of blocks. (ii) Excavation & earth work shall be measured & paid separately.

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

M&L in repair for leakages of CI pipes with spigot and socket ends, de-watering of pipe lines and trenches, burning out joints to recover lead and making new lead joint with retrieved material and any additional quantity of lead required as per site requirement including all other materials such as spun yarn, fire wood etc complete all as specified and as directed for the following sizes. Note: Excavation & earth work shall be measured & paid separately.

80mm dia

100mm dia

M&L in repair for run lead joint for cast iron water mains / fittings and finishing complete all as specified and directed by Engr-In-Charge for the following sizes :-

80mm dia

100mm dia

S&F in replacement of sluice valve class PN-1.6, heavy duty, both ends flanged with steel spindle & check nut, CI operating wheel and all nuts, bolts, washers, gaskets etc. complete all as specified and directed by Engr-In-Charge of the following sizes:-

80mm dia

100mm dia

S&F in replacement of Gun metal iron gate valve with iron wheel head, screwed both ends for iron pipe, ISI marked complete all as specified and directed by Engr-In-Charge for the following sizes :-

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

S&F in replacement of 15 mm dia Ball brass valve, high pressure, with polythene float and fly nut complete screwed for brass ferrule complete all as specified and directed by Engr-in-Charge.

S&F in replacement of 20 mm dia Ball brass valve, high pressure, with polythene float and fly nut complete screwed for brass ferrule complete all as specified and directed by Engr-in-Charge.

S&F in replacement of 25 mm dia Ball brass valve, high pressure, with polythene float and fly nut complete screwed for brass ferrule complete all as specified and directed by Engr-in-Charge.

S&F in replacement of 80 mm bore non return sluice valve ISI marked both end flanged suitable for cast iron pipe including all fittings washer, nuts & bolt etc complete all as specified and directed by Engr-in-Charge.

S&F in replacement of 100 mm bore non return valve ISI marked both end flanged suitable for cast iron pipe including all fittings washer, nuts & bolt etc complete all as specified and directed by Engr-in-Charge.

M&L in repair for construction of valve chamber in replacement 600 x 600 x 950 mm internal dimensions, 6 mm thick MS sheet cover with 2 Nos MS hinges welded to angle iron frame of 40mm x 40mm x 6 mm thick with lifting hook and locking arrangement complete with necessary earth work, brick work in CM (1:6), 230 mm thick, PCC bed (1:4:8) type D2 150 mm thick, cement plastering, finishing 15 mm thick in CM (1:4) and applying a coat of black bituminous paint to the steel surfaces including dismantling and removal of old unserviceable valve pit remains complete all as specified and directed by Engr-in-Charge at site. Note: Old retrieved items of MS frame and MS sheet shall be deposited to MES store yard.

M&L in repair for construction of valve chamber in replacement 950 x 950 x 950 mm internal dimensions, 6 mm thick MS sheet cover with 2 Nos MS hinges welded to angle iron frame of 40mm x 40mm x 6 mm thick with lifting hook and locking arrangement complete with necessary earth work, brick work in CM (1:6), 230 mm thick, PCC bed (1:4:8) type D2 150 mm thick, cement plastering, finishing 15 mm thick in cement mortar (1:4) and applying a coat of black bituminous paint to the steel surfaces including dismantling and removal of old unserviceable valve pit remains complete all as specified and directed by Engr-in-Charge. Note: Old retrieved items of MS frame and MS sheet shall be deposited to MES store yard.

De-watering by using pump as required and, removal of mud and settled silt including scrapping of complete inner surface with the help of wire brush etc and therefore cleaning by water and bleaching of the following OH tank / UG sumps / Static Water tanks. And apply two coat of white wash to all internal surface of wall and two coat of colour wash to all external surface including top surface and painting to oblitering labels shall be not less than 60 x 40 cm using black paint to match with existing dimension and writing particulars such as capacity of sump, date/ due date of cleaning etc using white paint including disposal of mud silt etc obtained after cleaning up to 50 m away complete all as specified and directed by Engr-In-Charge for the following capacity of UG sumps:- Note: Rate includes for marking on tank, date of cleaning and due date of next cleaning.

All as per srl item No 23 but for Semi UG sump of capacity 50000 GLNS at Bani Camp complete all as specified and directed by Engr-in-charge.

All as per srl item No 23 but for Static Water Tank of capacity 20000 GLNS at Bani Camp complete all as specified and directed by Engr-in-charge.

Testing of Raw Water/Treated water for bacteriological analysis, Chemical analysis, Arsenic presence test from any Govt. Approved/recognized Lab as approved by the GE. Note:- Contractor will be responsible to carry out the sample & submit report timely.

M&L for servicing of centrifugal /mono block pump set 20 HP, Opening the pump and re-fixing machining the pump shaft and shaft key ways, impeller shaft hole etc and replacing the key, impeller nut, gland packing, gland nuts and coupling as per existing size including re-fixing the same to the original position and commissioning testing complete all as specified and directed by Engr-in-Charge.

M&L for servicing of centrifugal /mono block pump set 15 HP, Opening the pump and re-fixing machining the pump shaft and shaft key ways, impeller shaft hole etc and replacing the key, impeller nut, gland packing, gland nuts and coupling as per existing size including re-fixing the same to the original position and commissioning testing complete all as specified and directed by Engr-in-Charge.

M&L for servicing of centrifugal /mono block pump set 7.5 HP, Opening the pump and re-fixing machining the pump shaft and shaft key ways, impeller shaft hole etc and replacing the key, impeller nut, gland packing, gland nuts and coupling as per existing size including re-fixing the same to the original position and commissioning testing complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of electric motor upto 20 HP 50 Hz 415 volts of mono block/centrifugal pump of any make and type with super enameled copper winding wire including bearing bushes and other accessories etc required to make motor functional and testing on load complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of electric motor upto 15 HP 50 Hz 415 volts of mono block/centrifugal pump of any make and type with super enameled copper winding wire including bearing bushes and other accessories etc required to make motor functional and testing on load complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of electric motor upto 7.5 HP 50 Hz 415 volts of mono block/centrifugal pump of any make and type with super enameled copper winding wire including bearing bushes and other accessories etc required to make motor functional and testing on load complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of electric motor upto 5 HP 50 Hz 415 volts of mono block/centrifugal pump of any make and type with super enameled copper winding wire including bearing bushes and other accessories etc required to make motor functional and testing on load complete all as specified and directed by Engr-in-Charge.

M&L for rewinding of submersible motor by taking out burnt copper winding, cleaning the casing & slots with wire brush & washing with pressure water & shall be dried, rewinding the motor using required gauge of super enameled copper winding wire. Making the winding leak proof & taking out the electric connection with suitable size of submersible cable upto 03 meter, capacity of motor 5 HP complete all as specified and directed by Engr-in-Charge.

All as per item No 32 above but of capacity 2 HP complete all as specified and directed by Engr-in-Charge.

M&L for Rotational moulded polyethylene water storage of capacity 5000 Ltr (cylindrical vertical type with closed top) hoisted and fixed in position all as specified in SSR Part-I complete all as specified and directed by Engr-in-Charge.

All as per above item here, but of capacity 10000 Ltrs.

S&F in replacement of Ductile Iron (DI) pipes with spigot and socket ends centrifugally cast 100 mm dia size class K-9, in any length laid in trenches including jointing materials complete all as specified and directed by Engr-in-Charge. Note: Earth work and CI fittings measured and separate items.

S&F in replacement of Ductile Iron (DI) pipes with spigot and socket ends centrifugally cast 80 mm dia size class K-9, in any length laid in trenches including jointing materials complete all as specified and directed by Engr-in-Charge. Note: Earth work and CI fittings measured and separate items.

S&F CI fittings for connecting pieces one end flanged and other socket or spigot and bell mouth pieces one end flanged other end tapering as bell mouth 150mm dia bore complete all as specified and directed by Engr-in-Charge.

M&L for construction of brick masonry valve chamber of size 900x900x900mm in cement mortar 1.6 including PCC 1:3:6 type C-2 with 40mm graded stone aggregate and plastering the walls from inside and outside the chamber in cement mortar 1:6 provisioning of angle iron frame 40x40x6mm and 3 mm thick MS plate as chamber cover with locking arrangement and providing of red oxide primer with two coats of synthetic enameled paint all as required including demolition of existing chamber complete all as specified and directed by Engr-in-Charge.

M&L for Drilling and tapping cast iron water mains (in position) for branch connection of the internal dia of size 20mm bore complete all as specified and directed by Engr-in-Charge.

M&L for Rotational moulded polyethylene water storage of capacity 1000 Ltr (cylindrical vertical type with closed top) hoisted and fixed in position all as specified in SSR Part-I (for pump house) complete all as specified and directed by Engr-in-Charge.

M&L for Rotational moulded polyethylene water storage of capacity 500 Ltr (cylindrical vertical type with closed top) hoisted and fixed in position all as specified in SSR Part-I (for pump house & Vayusenavihar) complete all as specified and directed by Engr-in-Charge.

MOHIT ENTERPRISES (BID ID -3349270)

OM ASSOCIATES (BID ID -3350409)

AMIT ENTERPRISES (BID ID -3357911)

M/S RK Builders (BID ID -3350112)

M/s R P Enterprises (BID ID -3349347)