Supply and Delivery of Submersbile centrifugal sewage non-clog pumpset at Balabagyanagar UGD Pumping station in Thachanallur Ward

Amount

Supply and delivery of submersible centrifugal sewage non-clog pumps, vertical spindle type pump , wear resistance with submersible motor for the various duty conditions as stated in the annexure. Pump shall be capable of handling min 100 mm solid size with sewage specific gravity of up to 1.05. Pump shall be of robust construction . Liquid passages shall be finished smooth and designed as to allow free passage to solids. Pump Impeller should be of Non-clog semi open type , single vane / multi vane preferably contra bloc or vortex impeller design. Double mechanical seal with silicon carbide faces should be provided to protect the motor from ingress of sewage along the shaft. The critical speed of the rotor shall be at least 30% above the operating speed. Pumps to have double bearings between the pump & motor. The bearings life shall be minimum 100,000 hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck foot bend, stainless steel guide pipe or related accessories of suitable size to facilitate lifting and lowering into guide rails for easy maintenance.(250LPS x34m Head 160HP Pumpset)

Labour charges for erection of submersible centrifugal sewage non-clog pumps, and delivery pipes to a required length with valves, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPIC switches, starter, voltmeter, ammeter, capacitor single phasing preventor and laying and jointing the cables and twin earthing as per IE rules including providing bed blocks etc., complete and operating the pumps and trial run of 10 days including signing of completion of reports as required and EB authorities.

SAVARIAR ADIMY JOHNJELASTIN (BID ID -1171342)