Maintenance and Repairs to Existing Borewells in ward areas at ward no.87, South zone Coimbatore Corporation.

Amount

Re-erection of centrifugal pumpsets, jet pumpsets and its accessories into the borewell/ openwell after attending the repairs etc complete

Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continous rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 % - 5 HP with duty of 50x75

Panel Board for 7.5 HP

Panel Board for 10 HP

Panel Board for 12.5 HP

Supply for 4sq mm 2x3 core copper insulated flat cable ect.,complete

Earth work excavation for pipe line with refilling in all soils and sub soils etc., complete

Supply and delivery of the following materials approved brand as per ISI quality anapproved by corporation officers.

50mm dia GI Pipe 'B' Class

50mm dia GI Bore coupling

50mm dia GI coupling

50mm dia GI bend

50mm dia GI elbow

50mm NRV Valve

50x100mm GI barrel nipple

50x150mm GI barrel nipple

50 x 300mm barrel nipple

50x450mm GI barrel nipple

50x600mm GI barrel nipple

50 mm dia GM gate valve

50mm dia MS Bore clamp

Bore cap using M.S. Flat of size 1 cm x 3 mm and M.S. sheet on top with bolting arrangements for securing the cap in position (Bore caps with M.S. Couplings need not be made)

50mm dia flange set

20 mm GI pipe B Class

20mm GI Coupling

20 mm GI elbow

20 mm x 100 mm barrel nipple

20 mm x 150 mm barrel nipple

20 mm x 300 mm barrel nipple

20mm dia waste not Tap

Supply of PVC pipes and Specials

63 mm dia PVC Pipe of 6kg/cm2

63mm dia PVC elbow

63 mm dia PVC tee

63 mm dia PVC Coupling

63x20 mm dia PVC Saddle

63 mm dia PVC endcap

90 mm dia PVC Pipe of 6kg/cm2

90mm dia PVC elbow

90 mm dia PVC tee

90 mm dia PVC Coupling

90x20 mm dia PVC Saddle

90 mm dia PVC endcap

PVC screw down tap Heavy type 20mm dia

Laying and jointing of G.I pipes Specials as per the direction of dept. off. Etc. complete

Laying and jointing of pvc pipes Specials as per the direction of dept. off. Etc. complete

Supply and delivery of clear water vertical wet type submersible pumpset suitable for 150mm dia borewell conforming to IS 8034/2002 as amended thereafter and BEE 3 Star Rated capable of discharging noted LPM against head of water column due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze or Cast SS impeller, brass screws and CI FG 200 grade pump bowl/diffuser with ISI mark. The pump shall be directly coupled to a continous rated two pole suitable wet type vertical squirrel cage induction motor as per IS9283 /1995 as amended there after, suitable for operation in AC three phase 415 V+/- 10 %, 50 HZ +/- 5 % - 5 HP with duty of 50x75

Labour charges for the erection of submersible pumpset in borewell/openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days

Removal of centrifugal pumpset/ jet pumps/ submersible pumpsets and its accessories from borewell/ open well for attending repairs etc complete

Provision For Electrical Wiring Works as per Departmental Officers Standards etc., Complete.

63Amps 4 Pole MCB

63 Amps Porcelain Fuse Unit (500V)

TW plank of size 600mm x 450mm x 19mm with supporting reepers of 1" thick on both side with painting and with bolt, nut and washer

32mm dia GI EB Service Pipe

Supply and run of 4 x 6 sq.mm. (84 / 0.3) PVC insulated SC unsheathed copper conductor of 1100V on 7 / 20 GI bearer wire for service connection mains etc., Complete.

HGS SS.20.B. Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders SS.20B (ScH.No.62) (P.No.22)

Plain Cement Concrete 1:4:8 (one cement four fine aggregates and eight coarse aggregates) using 40mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges and all incidential charges such as water providing etc., complete as per standard specification

Supply and erecting shuttering including necessary supports for plane surfaces such as RCC column, footing, plinth beam, stair case etc., in all floors using mild steel sheets of 90cm X 60cm and 10 gauge stiffened with welded mild steel angle for boarding supported by casurina props at suitable intervals etc., completed complying with standard specification and as directed. Sl.No.122

Plain Cement Concrete 1:3:6 (one cement, three fine aggregates and six coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification

Earthing arrangements with GI Earth Plate including charcoal and salt with necessary excavation in all soils and to full depth as may be required and masonry work, re-filling the sides of foundation with excavated earth as per the standard specification and as directed by the Departmental Officers.

Add :- GST @ 18%

B KANAGARAJ