SPECIAL REPAIR TO SUBMERSIBLE BORE WELL AND VERTICAL TURBINE PUMP AGAINST BER INSIDE FORT WILLIAM UNDER GE (FW) KOLKATA

Amount

Disconnecting of all electric / water supply connection from the panel/water line, taking out submersible pump set including column pipe (motor and pump) of 22.5 HP to 25 HP capacity by using tripod & chain pully from site and deposited to MES store yard , complete all as directed by Engr- in- Charge. Note : Column pipe, New spares, nuts, bolts, gasket & painting of column pipes shall be measured and paid separately

Development of Tube Well with Air Compressor of suitable Capacity till Sand/Mud/Silt-Free Water of Potable quality obtained and to achieve Minimum Discharging Capacity of 10000 GPH from the Tube Well by using same Air Compressor and the testing carried out for at least 8 continuous hours uninterrupted Run Per Day for 2 Continuous Days, complete all as specified and as directed. NOTE : Air Compressor with all accessories and Fuel, V Notch, etc., shall be born by the Contractor and the rated quoted for the same shall deemed to be included in the QUOTED UNIT RATE.

Supplying, lowering, fixing, commissioning and testing submersible pumping set in bore well, electrically driven, 415 volts three phase, AC, of 25 HP/18.65KW having a discharge capacity of 10,000 GPH at a head of minm 86 metres, including insertion of PVC Column pipe with other connected accessories, pump guard, adapter set etc and necessary electrical connections complete all as specified and as directed. (MAKE: KSB-Model No BPDN302A/12 or equivalent model in KIRLOSKAR / CROMPTON GREAVES) (NOTE : Column pipe, pipe accessories, pump guard, adapters and Submersible cable shall be measured and paid separately)

Supply only MS column pipe 100mm bore grade (heavy duty) flanged type complete with nuts, bolts, rubber including groove for cable entry system with gasket etc of 10 ft length, complete all as specified and as directed. (Make : Jindal or equivalent makes specified in the tender)

Supply only MS column pipe 150mm bore grade (heavy duty) flanged type complete with nuts, bolts, rubber including groove for cable entry system with gasket etc of 10 ft length, complete all as specified and as directed. (Make : Jindal or equivalent makes specified in the tender)

S&F MS nut and bolt with MS washer of any size for jointing of MS column pipes / pump mounting bolts / valves etc. as in repair , complete all as specified and as directed.

S&F Rubber gasket 3mm thick for jointing of column pipe of 100 to 150 mm bore as in repair , complete all as specified and as directed.

M&L Cleaning of old painted surfaces of 150 mm bore column pipe with iron brushes and applying one coat of black bituminous paint (suitable for drinking) on the surface of column pipe (inside and outside) of length 10' Ft, complete all as specified and as directed.

M&L Cleaning of old painted surfaces of 100 mm bore column pipe with iron brushes and applying one coat of black bituminous paint (suitable for drinking) on the surface of column pipe (inside and outside) of length 10' Ft, complete all as specified and as directed.

M&L Lifting of vertical turbine pump of capacity 60 HP to 150 HP any make and type along with vertical hollow shaft motor, column pipe, top shaft, line shaft etc including disconnection of motor from electric line or terminal box and discharge head from drainage line complete including taking down old unsv pump & motor deposited in MES store yard all as specified & directed by Engr-in-Charge.

Supply, Installation, Testing and Commissioning of Vertical turbine pump, discharge capacity 1136 cum/hr at 19 mtr head confirming to IS-1710-1989 complete in all respect with 7.5 mtr length heavy duty 300 mm bore 6 mm thick M. S. column pipe with both end flanged pipe, column assembly with spider and spider bush, SS line shaft (SS 410), impeller SS CF8M, Bowl / Bell 2% NICI, Bowl bearing -Bronze & Rubber, Basket Strainer- Galvanized steel, impeller shaft (SS 410), Shaft sleeve (SS 410), 43mm shaft dia, discharge head assembly, self water lubricating (Bowl and Column assembly) complete all as specified and as directed. Make of Pump : GRW Pump, Model No. GRVT-5119/1 or equivalent as approved by GE. Make of Motor: JSL Model No.VHS, SPDP IP-22, Motor rating 110KW / 150HP, 1500 RPM or equivalent model in KSB / WPIL /JYOTI / KIRLOSKAR.

Material and labour for earthing complete with galvanized steel earth plate electrode of size 600 x 600 x 6 mm thick, burried directly in ground (earth pit not less than 2.25 m below normal ground level) with top edge of the plate not less than 1.5 m below normal ground level connected to galvanized iron strip of size 25x4 mm as earthing lead by means of nuts, bolts and washers of galvanized iron and earth lead protected by galvanized iron pipe 15 mm bore (light grade) and connected to earth test point and including cement concrete pit in PCC (1:3:6) type C-1(using 20 mm graded aggregate) and pre-cast RCC cover slab of size 540 x 540 x 50 mm thick, reinforced with 8 mm dia TMT bars both ways and one handle for lifting made with 10 mm dia mild steel bar, funnel, wire mesh 20 mm bore galvanized (light grade) for watering, charcoal and salt in alternate layers including necessary excavation and earth works in any types of soil complete all as shown on Electrical plate No 3 of MES SSR-I complete all as specified and directed. Note: earthing strip of size 25x4 mm beyond 7.50m shall be measured and paid separately.

S&F earth continuity conductor with aluminium strips of size 25 mm X 3 mm, fixed to wall/on batten/ recess / chases / buried in ground / drawn in conduit or pipes / fixed to poles / from top of pump house to test point or any other indicated situation for loop earthing etc including providing fixing saddles, porcelain insulators etc as required complete all as specified and directed.

Demolition Cement Concrete (un-reinforced) in Ground Floors and Pavings not exc. 150mm thickness (above or below Ground Level), complete all as specified and as directed.

M & L for plain cement concrete (1:2:4) type B-1 using 20 mm graded stone aggregate for coping / encasing around of pole including necessary form work finished even and smooth without using extra cement all as specified and directed by Engineer-in-Charge.

JOY TRADING CORPORATION

MARUTI ENTERPRISES

PUTUL CONSTRUCTION CO.

RAY STANDARD ENGG CO.

Shanti Construction Company

Tirupati Buildcon Pvt. Ltd.

NUPUR CONSTRUCTION

S.K. TRADERS