Public Health Engineering Department Tender

Providing, Installation, testing and commissioning of Submersible pumping unit of capacity 3000 GPH X 100 mtrs head conforming to IS 8034 of reputed make at T/W cum P/S Jallochak. The pump bowl should be of close grained cast iron with renewable wearing rings of bronze material. The pump shaft shall be of stainless steel guided with stainless steel distance sleeves /shaft protection sleeves provided with each bowl above and below the stainless steel impeller . the casing wearing rings shall be of bronze material .The coupling shall be of mesh type rigid sleeve of stainless steel ,non slipping type with matching groove and cotter arrangement to suite keyway provided .The suction case shall be of close grained cast iron material .The motor should be three phase AC supply having nominal speed of 2900 RPM, 415 Volts of frequency 50 Hz. The motor should be totally enclosed squirrel cage induction type, water cooled and sealed against outside water being pumped. The windings shall be wet type water lubricated and provided with metal tilting thrust pad designed to take up all untoward load to most unfavorable running conditions. The job further includes Fabrication of adapter Nipple approx 1 mtr long fabricated out of MS Pipe, of which bottom end diameter is to be reduced to the delivery of Sub. Pump and threading the Pipe for screwing into the delivery portion to the submersible pump and other end of the adapter nipple is welded with MS flange of required size fabricated out of MS Plate for fixing with the column pipes nuts of required size are to be welded on opposite size of the proper piece so that clamping bolt of the tie rod can passed through it. The Job includes the cost of material and labour charges .Fabrication of the tie rod clamping arrangement for clamping the pump and motor to the upper adopter nipple, fabricated out of 40x6 MS Plate as per required size. The upper ends of these flat strips should be welded with full threaded bolt 12mm dia and 10 cm long. These bolts are to be passed through the nuts welded on the adopter nipple piece, tighting of the 12 mm double nuts on both sides including cost of material and labour charges. The Job includes coupling of pump and motor properly checking of movement of the pump, tightening of the adopter nipple to the delivery side of the pump tightening of tie rod and testing of the pump set in the testing pit at workshop. Lowering of submersible pump set into the Tube well along with the column pipes by using special tools and tackles viz chain pulley block, MS Clamp. The Job includes patching of the existing submersible cable of motor by using patch rolls and insulation tape to make water proof for lowering of submersible pump unit. .Testing of submersible pump set on full load by making connections of submersible cable of motor pump set with the panel and checking/high testing of all the electro mechanical connections. Complete Job includes cost of pump, material, labour charges, and carriage to & fro charges, etc. Complete Job. Sub Pumpset 3000 GPH x 100 Mtr Head = 01 No. at T/W cum P/S Jallochak This Job includes P/F of 200 A Main Switch HRC type.