Public Health Engineering Department Tender

Providing, Installation, Testing and Commissioning of Submersible Pumping unit of Capacity of 25,000 GPH X 90 mtrs head for casing pipe bore size 300 mm along with allied works at T/well Adarsh Enclave. 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, 380 Volts + 15% of frequency 50 Hz + 3%. 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 Pump-set must be of reputed make of Kirloskar/ KSB / Grundfos conforming to relevant BIS/IS standards/ codes 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 pipe. 2 No 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 150mm dia MS forged clamp 02 nos., for lowering the MS column pipes into the tube well casing pipe. 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, tightening of the 12 mm double nuts on both sides including cost of material and labour charges. The clamp should be in the two halves and should have two holes on either side of the holding arm. The clamp has to be fabricated out of MS Flat of 100 mmx10 mmx 0.75 mtr. The Job includes the cost of MS flat for clamp 4 No’s with cost of material and labour etc. 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. Providing, Fitting of flat three core 16 sq. mm 170 mtrs. Submersible copper cable make Havel’s/ Finolex / Anchor / Polycab, one of cable end will be fixed in panel and other end with sub motor after properly dressing of cable ends and insulating their properly. The Job includes patching of the sub. cable of motor by using patch rolls and insulation tape to make water proof for lowering of sub, pump unit. Testing of submersible pump set on full load by making connections of 16 sq.mm submersible cable of motor pump set with the panel and checking/ testing of all the electrical/ mechanical connections. The Job also includes providing and fitting of suitable three phase three pole power Contactor 110 Amp.– 02 no. and 80 Amp. -01 no. to LT control panel. Complete job includes cost of material, laying of cable, transport charges, labour charges and handling charges, testing and commissioning complete. The Complete job includes cost of material, labor and charges of mechanical transport including testing of the pump set on full load and handling charges including lowering charges. Complete Job in all respect.