REPAIR / MAINT OF EXTERNAL WATER SUPPLY DISTRIBUTION SYSTEM, CLEANING UNDERGROUND SUMPS AND REPAIR / MAINT OF SUBMERSIBLE PUMPS, MONOBLOCK PUMP SETS, BORE WELLS AND CONNECTED WORKS AT AF STN NAJAFGARH UNDER GE (AF) TUGHLAKABAD

Amount

Excavation in trenches not exceeding 1.5 Mtr wide and not exceeding 1.5 Mtr depth in soft / loose soil and getting out for removing / laying of pipe lines complete all as specified.

Returning and filling including spreading, levelling, watering and well ramming in layers not exceeding 25 Cm thick 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.

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.

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 speified 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

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 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 streches catering to specific requirements of a purticular quarter, building block or a group of blocks. (ii) Excavation & earth work shall be measured & paid seperately.

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

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 streches catering to specific requirements of a purticular quarter, building block or a group of blocks. (ii) Excavation & earth work shall be measured & paid seperately.

15 mm dia

20 mm dia

25 mm dia

40 mm dia

50 mm dia

Re-laying, jointing of old steel tubes and connections in new or old position including fittings such as bends, elbows, unions, tees, reducers, etc., as required at site laid in trenhes or on floor/ wall with good finishing complete all as specified and as directed at site by Engr-in-charge of the following sizes:- Note: Old GI pipes retrive from Ser Item No. 5.00

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 seperately.

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 flynut 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 flynut 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 flynut 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.

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.

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 unserviceble valve pit remains all as specified and directed at site. 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 unserviceble valve pit remains all as specified and directed at site. 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.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 60x40 cm using black paint to match with existing dimension and writing particulars such as capacity of sump , date/ due date of cleaning etc useing 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 20.00 but for Semi UG sump of capacity 50000 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 as 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 as 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 as directed by Engr-in-charge.

M&L for rewinding of electric motor upto 20 HP 50 Hz 400/415 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 as directed by Engr-in-charge.

M&L for rewinding of electric motor upto 15 HP 50 Hz 400/415 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 as directed by Engr-in-charge.

M&L for rewinding of electric motor upto 7.5 HP 50 Hz 400/415 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 as directed by Engr-in-charge.

M&L for rewinding of electric motor upto 5 HP 50 Hz 400/415 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 as 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 as directed by Engr-in-charge.

All as per item No 29 above but of capacity 2 HP complete all as specified and as directed by Engr-in-charge.

M&L for repairs & servicing of defective submersible pump of capacity 2 HP by dismantling the pump & removing unserviceable parts, assemble the pump properly after replacements of unserviceable parts complete all as specified and as directed by Engr-in-Charge. Note: (a) The rates are inclusive of transporting the pump from bore well site to repair work shop & back to site. (b) The rate are inclusive of turning/finishing work for fixing of parts properly. (c) The replacement of unserviceable parts will be measured and paid separately under respective item of this schedule.

Supply only following parts of submersible pump of capacity 2 HP complete all as specified and as directed by Engr-in-Charge.

C.I stage Casing

GM Bush

Brass impeller

Mild steel key for impeller

SS studs with Nuts 10mm

CI intermediate Section

SS coupling bush common for Pump & motor with key

High Tensile steel shaft

M&L for repair & servicing of defective submersible motor of capacity 2.0 HP HP by dismantling the motor & removing unserviceable parts, assemble the motor properly after replacement of unserviceable parts complete all as specified and as directed by Engr-in-Charge. Note: (a) The rates are inclusive of turning/finishing work for fixing of parts properly. (b) The rates are inclusive of testing of motor at bore well installation for satisfactory functioning/running. (c) The replacement of unserviceable parts will be paid & measured separately under relevant item of schedule.

Supply only for following parts of submersible motor of capacity 2 HP complete all as specified and as directed by Engr-in-Charge.

Bearing bush Gunmetal

Bearing bush SS with Rubber

Oil seal

Thrust plate/thrust bearing set.

Sand Guard

CI thrust casing

S&F in replacement of 6 Sqmm multistranded copper conductor, 3 core PVC insulated and sheathed copper screen protected 1100 Volts grade submersible flat cable fixed to column pipes with suitable clamps & jointing material complete including disconnecting & taking out old unserviceable cable complete all as specified and as directed by Engr-in-Charge.

M.S. ENGINEERING & CONSTRUCTION

NAVYUG VYAPARI

M/S RK Builders

Deepak Electricals