REPAIR REPLACEMENT DAMAGE GI CI PIPELINES PUMP MOTOR FILTER MEDIA CLEANING OF INTAKE JAKE WELL AND ALLIED WORKS AT BOOSTER AREA AND DAM AREA AT AF STATION SINGARSI UNDER AGE I AF SINGARSI

Amount

Dismantling of mulitistage induction motor of 30 HP (Make : Kirloskar) from pump after disconnection of mechanical tyre coupling and unbolting from foundation base plate,discconection of electric connection from terminal, loading/unloading the motor to vehicle and transportation of the motor from Singarsi (Air Force Station) to workshop (out side) for repair / replacement, open the motor and cutting the burnt winding and clean the rotor & stator with CTC or other cleaning agent and re-winding of stator winding with super enamelled copper wire of gauge and turn as per existing, insulating the leads with insulating tubes and varnishing the stator with good quality of insulating varnish and after that, heating the stator in heat chamber for continuous two days for better insulation resistance. Re-assembling the stator & rotor carefully after replacement of worn out bearings as per existing and again transportation of the motor through vehicle from workshop (out side) to Singarsi (Air Force Station) including loading/unloading the motor on its base frame, connection of motor with pump with tyre coupling and fixing to the base frame by bolts incl super enamelled copper wire of existing gauge / size / quality to match with the existing as comply with Indian Standard Specification. After checking up the alignment, testing of motor with megger for checking of insulation resistances, electric connection of motor to the control panel, testing on load for continous running for three hours, complete all as specified and as directed by Engr-in-Charge.

Disconnecting of 30 HP mulitstage centrifugal pump from the motor after disconnection of mechanical tyre coupling, suction/discharge pipe line and unbolting from foundation base plate, loading/unloading the pump to vehicle and transportation of the pump from Singarsi (Air Force Station ) to workshop (Pakur/Nalhati/Dumka/kolkata etc.) for repair/replacement/maintenance and including dismantling & re-assembling the pump impeller with housing, stainless steel shaft, bearing for smooth running, replacement of packing gaskets, shaft sleeve, neck ring etc, with necessary oiling and greassing and again transportation of the pump through vehicle from workshop (Pakur/Nalhati/Dumka/kolkata etc) to Singarsi (Air Force Station) after necessary repair/replacement/maintenance including coupling (iron) cutting / making the bore and fixing the unique rubber coupling as required thickness in the existing if required and loading/unloading the pump and re-coupling the pump with motor on base frame, after checking of the alignment with motor, testing, commissioning, complete all as directed by Engr-in-Charge. ( Note : 1. Spare parts of pump i.e. ball bearing, stainless steel shaft, impeller will be measured and paid separately as supply only if required)

Supply only bearing 7308BECBP or equivalent suitable for 30 HP pump as per existing. (Make : SKF / NBC or equivalent as approved)

Supply only bearing 56610 or equivalent suitable for 30 HP motor as per existing. (Make : SKF / NBC or equivalent as approved)

Supply only impellar bearing suitable for 30 HP pump as per existing. (Make : SKF / NBC or equivalent as approved)

Supply only cast iron Impeller suitable for centrifugal pump of capacity 30 HP of any stage complete all as existing one.

M&L for cleaning of slow sand filter of size length 2.00 metre, width 3.00 metre, height 1.50 metre, by taking out old filter media i.e sand, gravel, pebbles and cleaning media by wet harrowing method and regeneration of media for fully usable and refilling media in layer wise as per direction of Engr-in-Charge, including scrubbing of inner portion of tank for any rust and taking out existing, buffer plate 22 Nos with 650 Nos of stainer nozzle and supply and fixing new buffer pipe with suitable grade GI pipe and dia by cutting / welding and making arrangment for fixing of stainer nozzle and fixing inside the slow sand filter tank all complete to make slow sand filter fully functional by removing contaminiation present in water by mechanism of entrapment, absorption, biological flocculation and biological degradation achieving required loading rate and discharge rate all complete all to entire satisfaction of Engr-in-Charge. Note : Supply of GI pipe / plate / stainer nozzle including required welding / cutting / painting of MS plates / tanks and connecting buffer pipes with stainer nozzle with necessary cutting / holes / welding / painting for fixing and any other items left out but required to make Slow sand filter plant fully functional to achieve desired results shall be included in quoted rates.

M&L for 16 mm to 20 mm dia MS bolts and nuts (machine made) with hexagonal or square head at one end and screwed the other with washers of length exc. 22.5cm and n.exc. 30 cm and fixing in machine foundation / platform for existing centrifugal pump fixed in repairs, complete all as specified and as directed by Engr-in-Charge.

Repair/Maintenance of painting of external and interntal wall of Jack well pump house, covering the roof for any dripping of water inside during rain all complete including supply and fixing of two nos of wall mounted fan 600 mm, air criculator 3 blade wall fan heavy duty making good plastering and necessary electric connections using suitable size wire complete all as specified and as directed by Engr-in-Charge, for desiptation of heat generated while running of the VT pumps. Make:- (Orient or equivalent in Bajaj/havells/USHA/Almonard) (Note: Suitable size fastner to fix wall mounted fan and provn of wall mounted fan 2 Nos, in wall and making good, removal of debris from the site should be included in quoted rates.)

S&F in repair water level indicators with automatic digital water level indicator (Photonic water level indicator (PWLI-E) with big display shall be capable of clear indication of water levels in the Overhead tank of Cap 1 Lakh Gln and indication shall be large display positoned outside of the tank and should be clearly visible from 100 mtrs all complete including required sensor switches, electric connections and cables, complete all as specified and as directed by Engr-in-Charge.

M&L for GI pipe "medium grade " ISI marked with and including all fittings ie bend ,Tee, elbow , union ect and fixed complete to walls and ceilings or laid in floors/trenches, making good the disturbed surface as earlier of 50 mm dia size including taking out old U/S GI pipe, complete all as specified and as directed by Engr-in-Charge.

Material and labour for excavation in trenches in any type of soil not exceeding 1.50 m wide and not exceeding 1.50 mtr depth for laying of cable/GI pipe etc and getting out, complete all as specified and as directed by Engr-in-Charge.

M&L for returning filling inclulding spreeding, leveling watering and well ramming in layers not exceeing 25 cm thick using excavated soil, complete all as specified and as directed by Engr-in-Charge.

M&L for removal of surplus soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.50 mrtre above the strating point, complete all as specified and as directed by Engr-in-Charge.

M/S MBS TRADING CO (BID ID -3192213)

M/S New Builders Corporation (BID ID -3196230)

LALAN SHARMA (BID ID -3193726)

M/S Subhadip Enterprise (BID ID -3193497)

M/S SINGH ENTERPRISE (BID ID -3192987)

M/S AMARNATH AGARWALLA (BID ID -3192068)

M/S ASHA ENTERPRISE (BID ID -3192978)