Providing Installation testing and commissioning of 25000 GPH X 100 Mtr Head submersible pumpset at Tube well Chatha Mill along with allied works under JMC Capex Budget

Amount

Providing, Installation, testing and commissioning of 25000 GPH X 100 Mtr. Head submersible pump-set along with allied works at Tube well Chatha Mill. 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 be 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 acceptable makes of Submersible Pump Set are of reputed make viz. KSB/Kirloskar/grundof. The job involves fabrication of adopter Nipple/reducer nipple approx 0.5 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 adopter 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. Fabrication of the tie rod clamping arrangement for clamping the pump and motor to the upper adopter nipple, fabricated out of 40mmx6mm MS Plate as per required size at site. 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 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 pumpset in the testing pit at workshop. Shifting of the submersible pump to work site. Job includes dismantling of electrical connections from outgoing terminals of L T Control panel ,then extraction of submersible pumpset along with column pipes. . Lowering of submersible pumpset into the Tube well along with the column pipes by using special tools and tackles.The job also includes providing & fitting of 400 A three phase four pole HRC fuse unit disconnector Main switch along with 50 sq mm multi strand single core copper cable-24 m in length from outgoing terminals of the main switch to the voltage stabilizer and from voltage stabilizer tp panel with proper thimbling /crimpling and insulation. Making all electrical connections of Submersible PumpSet with LT control panel by proper thimbling and crimpling all cable ends and then testing and checking for specified amperage on full load. Complete job includes the cost of material, labour charges, taxes, other unforeseen material, transportation charges including manual carriage, hire charges of tools and tackles required for execution of job at site. Complete job.

M/S K S ENGG WORKS

JAGDEMBAY MECH ENGG WORKS