REPAIR AND MAINTENANCE OF WATER SUPPLY INSTALLATIONS AT AFS HAKIMPET UNDER GE(AF) HAKIMPET

Amount

Disconnecting of delivery water pipe line of wells having various depths upto 120 mtr by removing electric connections carefully from the existing submersible pump sets taking out the defective pump set from the well alongwith GI column pipes size of 50mm dia, submersible cable, and strip opening the pump set for repairs, transporting to the civil workshop, replacement of worn out spares ,re- fixing of serviceable spares assembling the pump set completely , testing of pump set lowering the pump set inside the well after repairs, including connecting back the water mains and electric connections commissioning of pumpset for satisfactory operation on its full load complete all as specified and as Directed by Engineer in charge.

Note : a) The spares (supply only) required for repairing the pump sets and rewinding of motor will be measured and paid seperetely under respective item. b) Expendable stores like cotton waste/cleaning materials lubricants , gland packing metal filling , machining and transportation from site to work shop are deemed to be included in rate quoted.

M&L for rewinding the well submersible/Non clog Submersible motor with insulated copper conductor winding wire of same guage as existing weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete all as specified and as Directed by Engineer in charge.

(a) Up to 3 HP Submersible Motor

(b) 5 HP Submersible Motor

(c) 7.5 HP Submersible Motor

(d)12.5 HP Submersible Motor

Supply and fix the following spares for repairs to submersible pump and motor upto 5 HP capacity Make:- SKF/NBC/Tata

(a) Gun metal Impeller

(b) Stage casing

(c) Stage casing sleeve

(d) Middle stage casing

(e) Middle bush

(f) Middle sleeve

(g) Discharge outlet

(h) Discharge outlet bush LB

(j) Suction bush

(k) Pump shaft

(l) Pump coupling

(m) Motor Bearing Bush (LB) 4 Nos

(n) Thrust Bearing

(o) Upper & Lowering Housing

(p) Motor Base

(q) Oil Seal

(r) NRV Body

Supply and fix the following spares for repairs to submersible Motor of capacity above 5 HP and upto 12.5 HP. Make:- SKF/NBC/Tata

(a) Gun metal Impeller

(b) Stage casing

(c) Stage casing sleeve

(d) Middle stage casing

(e) Middle bush L.B

(f) Middle sleeve

(g) Discharge outlet

(h) Discharge outlet bush LB

(j) Suction bush

(k) Pump shaft

(l) Pump coupling

(m) Sand guard

(n) Motor Bearing Bush (LB) 4 Nos

(o) Thrust Bearing

(p) Upper & Lowering Housing

(q) Motor Base

(r) Oil Seal

(s) NRV Body

Disconnecting the suction and delivery pipe line and electric connections of centrifugal pump set of following capacity and removing it from its position carefully and transporting to the work shop and refixing the same in its original position after overhauling including replacement of bushes , machining pump shaft to suit in new bushes all as specified and as directed By Engineer in charge.. Note : (i) The spares required for repairing the pump sets and rewinding of motor will be measured and paid seperetely under respective item. (ii) Expendable stores like cotton waste/cleaning materials lubricants , gland packing metal filling , machining and transportation from site to work shop are deemed to be included in rate quoted.

(a) Centrifugal monoblock pump set up to 10 HP capacity

(b) Centrifugal monoblock pump set above 10 HP and up to 30 HP capacity

M & L for rewinding of centrifugal motor with super enameled copper conductor of same guage weight and turns to achieve its full efficiency includuing replacement of bushes tying the windings and connecting the coils and bringing the connections as that of exisitng complete all as specified and as directed by Engineer in charge.

(a) Centrifugal monoblock pump set upto 3 HP

(b) Centrifugal monoblock pump set 5HP

(c) Centrifugal monoblock pump set 7.5HP

(d) Centrifugal monoblock pump set 10 HP

(e) Centrifugal monoblock pump set 20 HP

(f) Centrifugal monoblock pump set 30 HP

Supply and fix the following spares for centrifugal/ mono block pump set upto 5 HP capacity Make:- SKF/NBC/Tata

(a) Ball bearing drive

(b) Ball bearing non drive

(c) Terminal

(e) CI Impeller

(f) Ball Bearing drive for pump

(g) Ball bearing non drive for pump

(h) G M Bush

(j) Oil Seal

(k) Gland Cover

(l) MS pump shaft

Supply and fix the following spares for repairs to centifigal Motor above 5HP and upto10 HP capacity Make:- SKF/NBC/Tata

(a) Ball bearing drive

(b) Ball bearing non drive

(c) Terminal

(e) CI Impeller

(f) Ball Bearing drive for pump

(g) Ball bearing non drive for pump

(h) G M Bush

(j) Oil Seal

(k) Gland Cover

(l) MS pump shaft

Supply and fix the following spares for centrifugal/ mono block pump set above 10 HP upto 30 HP capacity. Make:- SKF/NBC/Tata

(a) Roller Bearing

(b) Ball bearing non drive for motor

(c) Terminal

(e) CI Impeller

(f) Ball Bearing drive for pump

(g) Ball bearing non drive for pump

(h) G M Bush

(j) Oil Seal

(k) Gland Cover

(l) MS pump shaft

Disconnecting the suction and delivery pipe line and electric connections of open well submersible pump set up to 10 HP and removing it from its position carefully and transporting to the work shop and refixing the same in its original position after overhauling including replacement of bushes , machining pump shaft to suit in new bushes all as specified and as directed By Engineer in charge..

Note : a) The spares required for repairing the pump sets and rewinding of motor will be measured and paid seperetely under respective item. b) Expendable stores like cotton waste/cleaning materials lubricants , gland packing metal filling , machining and transportation from site to work shop are deemed to be included in rate quoted.

M & L for rewinding for open well submersible pump with super enameled copper conductor winding wire of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete all as specified and as Directed By Engineer in charge.

(a) Open well submersible pump set upto 5HP

(b) Open well submersible pump set above 5HP and upto 10 HP

Supply and fixing the following spares for Open well submersible pump set upto 10 HP capacity of approved Make:- SKF/NBC/Tata

(a) Motor Bearing bush LB

(b) Rotor RE work

(c) Thrust Bearing

Supply and lay submersible copper conductor cable flat ,1100 volts grade ,3 core ,2.5sqmm PVC sheathed with multistranded copper conductor of following size , cutting to required length with necessary end ferrules / water proof joints including taking down of u/s submersible cables. Complete all as specified and directed. Make- Finolex/Havells/Plaza or equivalent

All as item No 13 but 4 sqmm submersible cable.

All as item No 13 but 6 sqmm submersible cable.

M&L for Flushing of existing wells of size 150mm dia, depth upto120 mtr with drilling compressor including surging and flushing the at a pressure of 7 kg/ sqcm complete with compressed air and flushing the sand, mud etc from the well all as directed by Engineer-in-Charge.

Taking out by lifting of non clog sewage submersible pump incl. electric motor 5 to 7.5 HP ,3 phase ,415 Volts by ,disconnecting all electrical & machanical connection, Dismantling the motor .Cutting the burnt winding and cleaning the slots with non greasy materials and rewinding with PVC insulated copper wire (Gauge of copper is to match the existing size) with insulating material, varnishing drying complete. Reassembling the motor, all as directed ,lowering , installing and making all electrical & macahincal connection, testing complete to entire satisfaction of Engr-in-charge.

Taking out/ dismantling non clog sewage pump unit 5 - 7.5 HP capacity and overhauling, oiling & greasing including replacement of warn out nut bolt & washer, grinding & pollishing if required complete Note: Spares impellar, bush, & oil seal will be measured and paid sepertatelly Complete all as specified and directed.

Supply only spares for repair to pumps of following capacity

(a) Non cloging heavy duty impellar for 5 HP

(b) Non cloging heavy duty impellar for 7.5 HP

(c) Bush for 5 HP to 7.5 HP capacity

(d) Oil seal for 5 to 7.5 HP

Taking out air compressor incl. electric motor 20 HP 3 Phase 415 V installed at STP disconnecting electric connection and dismantling motor, cutting burnt winding and cleaning slots with non greasy chemical and rewinding with super enameled copper wire of existing gauge incl. insulating material, varnishing complete and repair of compressor by dismantling, grinding, polishing of cylinders, pistons, replacement of piston rings, beraings incl. replacement of compressor oil 5 Ltr , complete all as specified & directed by enginer- in- charge

Supply and fix the folllowing spares suitable for submersible/ cenrifugal/ monoblock pump set panel of various capacity including taking down /dismantling existing unserviceable spares.

(a) MCCB 63 Amps four pole fixed type, Breaking capacity 25 KA, 415 volt AC, 50 HZ confirms to IEC 60947II / IS 13947II Make - Standard/Legrand/L&T

(b) MCCB 100 Amps four pole,fixed thermal and fixed magnetic setting, Breaking capacity 25 KA, 415 volt AC, 50 HZ confirms to IEC 60947II / IS 13947II Make - Standard/Legrand/L&T

(c) Voltmeter 0 to 500 Volts make - Meco, AE, L&T

(e) Indicating lamp (set of 3 ) make - HPL/Siemens or equivalent

(f) Automatic Star Delta starter with Dry run trip, Single phasing and Phase reversel protection , CT coils and relays suitable for 10 HP capacity. Make - Havells/L&T/ Crompton Greaves

(g) Automatic Star Delta starter with Dry run trip, Single phasing and Phase reversel protection , CT coils and relays suitable for 5 HP capacity. Make - Havells/ L&T/ Crompton Greaves

(h) DOL starter up to 7.5HP Capacity. Complete all as specified and directed. Make - Havells/ L&T/ Siemens

(i) Single phase Preventor Make - minilac or equivallent to L&T, C & S, HPL

(j) Timer switch- Make - L&T, C & S, HPL

(k) Automatic Star Delta starter with, Single phasing and Phase reversel protection , CT coils and relays suitable for 20 HP capacity. Make - Havells/L&T/ Crompton Greaves

(l) Automatic Star Delta starter with, Single phasing and Phase reversel protection , CT coils and relays suitable for 30 HP capacity. Make - Havells/L&T/ Crompton Greaves

(m) Over load relay switch complete all as specified and directed. Make - L&T/Siemens/C&S.

(n) C T Coil suitable for submersible motor starter any capacity. Complete all as specified and directed.Make - L&T/Siemens/C&S.

(p) DOL Starter coil up to 7.5HP capacity. Complete all as specified and directed.Make - L&T/Siemens/C&S.

(q) DOL Starter spare kit suitable up to 7.5HP capacity motors. Complete all as specified and directed.Make - Minilac/L&T/AE

(r) Contactor up to 5HP submersible motor controller. Complete all as specified and directed. Make - L&T/C&S/Siemens

(r) Contactor above 5HP upto 15 HP submersible motor controller. Complete all as specified and directed. Make - L&T/C&S/Siemens

(s) Push button suitable for control panels (Red&Green) complete all as per direction of engr-in-charge. Make - Siemens/Legrand/L&T

Material & labour for earthing with Galvanised Steel earth plate electrode 60cm x 60cm x 6mm thick buried directly in ground vertically at a depth not less than 2.25metre below normal ground level with top edge of earth plate at a depth not less than 1.5 metre below normal ground level, earth plate surrounded from all sides by 15cm thick packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using Galvanised Iron wire of 32X6 mmas earthing lead (upto the body of the equipment) by means of bolts, nuts, check nuts and washers made of galvanised iron and thimbles and protected by light grade 40mm dia GI pipe connected to main switch board or main control board and GI pipe light grade 20mm bore for watering and including funnel , wire mesh , RCC pit cover and PCC chamber pit with PCC (1:3:6) type C-2 using 40mm graded stone aggregate, including excavation and earth work in any type of soil , returning , filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate No 5 of SSR 1991(Part-I) complete all as specified and as directed by Engineer-in-charge.

Supply and Lay in repairs for Galvanized Iron water tubing " Medium Grade" with all fittings laid in trenches for following sizes Complete all as specified and directed.Make - Jindal/Tata/Zenith

(a) 20 mm dia pipe

(b) 25 mm dia pipe

(c) 40 mm dia pipe

(d) 50 mm dia pipe

Excavation in trenches not exc 1.5 wide and not exc 1.5 mtr deep and getting out in hard /dense soil for laying pipes complete all as specified .

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

Removal of excavated material to a distance not exc 50 mtr away from starting point and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed .

Material and labour for cutting of road / hard standing not exc . 1.5 mtr wide and not exc. 1.5 mtr deep for laying and taking out water pipe line including making good the disturbed portion as per existing earlier complete all as specified and directed .

Supply and laying in replacement of DI pipe spigot and socket ends class 'K-7'suitable in replacement of CI Pipes for tyton joint or any length properly laid in trenches all as specified and directed by Engr-In-Charge of following sizes:-Make - Srikalahasti/Electrosteel/Kesoram/TISCO

(a) 300mm dia pipe

(b) 200mm dia pipe

(c)150mm dia pipe

Haasith constructions

Universal refrigeration and Engineering Company