MID/J/76

Servicing/repairs to 350 mm diameter choked foot valve of pumping unit no III by way of dismantling parts. Cleaning of all internal parts to remove silt and rust. Fabrication of foot valve plate as per size, new leather washer, hinge pin, new nuts & bolts. Dismantling of the 350mm vertical lengths of the suction pipeline 15feet approx till the bend of the pumping unit III at LIS Sai-1 in order for the proper desilting of the choked pipe with sand and mud in the rainy /monsoon season . Then after cleaning reassemble the lengths with the help of the new nuts bolts,,rubber sheet . The job includes cost of material, skilled/ semi-skilled labour, transportation charges, crane charges/chain pulley block and carriage charges . Finally fitting the repaired footvalve at the end of the suction pipeline with the help of nuts ,bolts and rubber sheet .Providing and fitting of the 3inch non -return valve on the suction pipeline of the priming motor 5HP somewhere in the middle of the vertical length .The job includes cutting of the vertical length of the suction pipeline and welding the flanges at the end of the cut pipe pieces ,then fitting of the 3inch non return valve with the help of new nuts ,bolts and rubber sheet. Servicing/ repair of automatic star delta starter 75 HP of of the uni No III at LIS Sai by complete dismantling of all the parts of starters . Servicing of all the contactors and relays with suitable chemicals. Providing/fitting of new parts i.e. timer assembly, contactors and relay required after proper checking for smooth operation. providing/fitting of new thimbles to make connections with the motor. . Servicing/repairs to the motor 50HP of unit No III by way of disconnecting the cables from the starter and then dismantling with the help of tools & tackles/manual labour from base frame and HC pump position and then shifting the same to road side by manual head load and then 1oading with the help of manual labour/chain pulley block in mechanical transport for further shifting to the workshop, Unloading at the workshop for repairs /rewinding of the motor. Dismantling of 50 HP motor at workshop and then extraction of rotor from stator and complete rewinding with new copper wires of requisite gauge and specifications of standard make. Providing/fitting of new insulation, packing material, then varnishing with superior quality varnish drying in oven in controlled temperature. Providing and fitting of new bearings- 6313 and 6310 on driving and non driving end respectively, bearing plates- 2 no’s, end terminals, nuts and bolts.Back carriage to site after repairs and reinstallation by making connections of motor to the serviced starter and testing on idle and load conditions. The estimate has been framed after deducting the scrap value of motor winding. Complete job includes cost of material, welding charges, skilled/ semi-skilled labour, transportation charges, crane charges/chain pulley block charges and carriage charges and head load charges from road side to lift station . Note:- The Tenderers are requested to visit the site and quote the rate as per site conditions. Any modifications/ alterations of the job, felt necessary if required at the time of actual execution may be /done as per actual site conditions. The firm should offer rebate on old material.

Rebate on Old Parts