FLUSHING AND DEVELOPMENT OF BOREWELL REPAIRS AND REPLACEMENT OF GI AND CI PIPE LINES AND ALLIED WORK SERVICES AT CVRDE AVADI

Amount

M&L for Disconnecting electrical connections and taking out submersible pump sets any capacity alongwith column pipe from borewell of any depth (approx 60m) by unscrewing each column pipe for checking and repairing and re-lowering the same after repairs are carried out and anchoring it on the well with clamps including electric connectons and testing complete. Note: (i) Repair works of Submersible pumps (as required) will be measured and paid separately (ii) The GI pipe in good condition being reused. The fixing charge is included in this item.

M&L for Disconnecting electrical connections and taking out submersible pump sets any capacity alongwith column pipe from Openwell of any depth (approx 30m) by unscrewing each column pipe for checking and repairing and re-lowering the same after repairs are carried out and anchoring it on the well with clamps including electric connectons and testing complete. Note: (i) Repair works of Submersible pumps (as required) will be measured and paid separately (ii) The GI pipe in good condition being reused. The fixing charge is included in this item.

M&L rewinding of submersible motor of any capacity 7.5 HP with super enamelled copper wire of existing gauge and No of turns and varnishing complete and testing and including repair the pump sets all as directed by Engineer in charge. Note: Shaft, impeller, bowls, thrust bearing,distance sleeve as required will be measured and paid separately.

All as per item No 3 above but 5.0HP submersible pump motor.

M&L for servising and greasing of submercible pump of capacity 5.0 / 7.5 HP and testing and including replace the bearing with new all as directed by Engineer in charge.

Supply and fix in replacement Impeller suitable for 5.0 / 7.5 HP tubular submersible pump set .

Supply and fix in replacement thrust bearing suitable for 5.0 / 7.5 HP submersible pump set .as approved

Supply and fix in replacement brass bush and distance piece suitable for 5.0 / 7.5 HP submersible pumpset as approved

Supply and fix in replacement CI bowls for 5.0 / 7.5 HP submersible pumpset including replacement of rusted GI support strip all as directed.

M&L flushing the existing bore well water with Air compressor minimum 4 hours per bore well all as directed by Engineer in charge.

Supply and fix in replacement PVC insulated 3 core copper flat cable 2.5 sqmm for submersible pump set for 5 HP capacity Make: Finolex/ Polycab/ Anchor.

All as per item No 11 above but 4.0 sqmm for submersible pump set for 7.5 HP capacity.

S&F in replacement DOL starter 415 volts, 5/7.5 HP 50 Hz all as directed ( MK 1 DOL) Make: L&T/BCH

S&F in replacement DOL motor starter rating 5/7.5 HP, 3 Phase 415 Volt 50 Hz, MUG 6 in sheet enclosure type all as directed by Engineer in charge.

S&F in replacement of U/S 200 mm dia borewell top cover cup (PVC)

M&L painting LT starter panel board with one coat of synthetic enamel paint (inside and outside) after disconnecting the LT electric supply and taking down the starter and switches complete and refixing after painting dismantled items of the panel and connecting electrically and also writen bore well No with white paint all as specified and directed.

Supply fixing in replacement Nylon rope of 16mm dia suitable for borewell all as directed by Engineer in charge.

Supply and fix in replacement column pipe with GI tubing medium grade 3 meter long each of bore 50mm dia with threaded both ends and with one No of heavy duty coupling suitable for above column pipe to replace the rusted/ damaged GI pipes dismanted vide item No 1 above complete all as directed.

S&F in replacement unplasticized polyvinyl chloride (UPVC) column pipe of pressure rating20 kg/sqcm for borewell of pipes of bore 50mm size each length 3metre long all as directed.

Taking down or up steel tubing and connections for 20 mm bore of pipe from Trenches / Walls / Floors etc. complete all as specified and as directed. Note: Earthwork and excavation as required shall be measured and paid separately.

All as per Serial Item No. 20 above but of 25 mm bore.

All as per Serial Item No. 20 above but of 40 mm bore.

All as per Serial Item No. 20 above but of 50 mm bore.

All as per Serial Item No. 20 above but of 80 mm bore.

All as per Serial Item No. 20 above but of 100 mm bore.

S & F GI Water Tubing, 20mm bore, Medium Grade, including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. fixed to walls, ceiling or laid on floors including testing complete all as specified andas directed.

All as per Serial Item No. 26 above but of 25 mm bore.

Supplying and laying GI Water Tubing, 40 mm bore, Medium Grade, including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc laid in trenches including testing complete all as specified and as directed.

All as per Serial Item No. 28 above but of 50 mm bore.

All as per Serial Item No. 28 above but of 80 mm bore.

All as per Serial Item No. 28 above but of 100 mm bore.

S & F in repairs, 20 mm bore dia Gun Metal Gate Valve with iron wheel head, screwed both ends for iron pipe, including taking down the old valve complete all specified and as directed.

All as per Serial Item No. 32 above but of 25 mm bore.

All as per Serial Item No. 32 above but of 40 mm bore.

All as per Serial Item No. 32 above but of 50 mm bore.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m deep in Soft / Loose soil for taking out or laying of Pipes, Cables of any size etc. complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material [Soil] to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

Supply, install, test and commissioning motor control panel, outdoor pedestal type mounted on wall , door type with locking arrangement including provisioning of the following items and painting with two coats of synthetic enamel paint over a coat of red oxide primer and taking down old panel complete : - (a) Aluminium bus abr -100Amps -04 Nos (b) MCCB, 4 Pole, 32 Amp, 50Hz , 415V, 25 KA -01 Nos (incoming) (c) Star delta starter suitable suitable for electric motor 5.0/7.5 HP – 01 No.Make ;- L&T (d) Single phase preventer – 01 No (e) Indicating lamps (set of 3 Nos) – 1 set. (f) Mutltimeter for VAF(voltage,amps,Hz)

S&F repair Thermal Over Load Relay of cap 6 A to 8 A & 8 A to 14A

S&F repair U/S 4 Pole 3 Phase MK1 contactor of capacity 32A, 415V

KRISHNA ENTERPRISES

K Kumar Construction