Namakkal City Municipal Corporation-Supply and delivery of UGSS collection System Non clog sewage Motors for Lifting Stations

Amount

Supply and Delivery of Submersible Centrifugal Sewage Non Clog Pumps Supply and delivery of submersible centrifugalsewagenon-clogpumps, vertical spindle type pump,we arresistance with submersible motor for the variousduty conditions as stated in the annexure. Pump shall be capable of handling min 100mm solid size with sewage specific gravity of upto1.05. Pump shall be of robustconstruction. Liquid passages shall be finished smooth and designed as to allow free passage to solids.Pump Impeller should be of Non-clog semiopen type, single vane/multivane preferably contrablocorvortex impellerdesign. Double mechanical seal with silicon carbide faces should be provided to protect themo to from ingress of sewage along the shaft. The critical speed of the rotor shall be atleast 30% above the operating speed. Pump stohave double bearings betweenthe pump&motor. The bearings life shall be minimum 100,000hrs of operation with greased for life. Pump should be provided with automatic coupling device including pedestal, duck footbend, stainless steel guidepipe or related accessoriesof suitablesize to facilitate lifting and lowering into guiderails for easy Pump shall be provided with as tainless steel lifting chain conforming to BS970Gr 304.Pump speed shall be of 9600 rpm for high duty pump sand 960/1450rpm for lowduty pump sets.Casing and impeller shouldbe ofCIGr. FG260:IS210 more preferably with hardened impeller. Shaft should be of stainless steel AISI410. All the fasteners and bolts shall be of AISI410. The submersible motor shall be operated with 3ph,415V(+or–10%), 50Hz(+or-dryin duction type. Motor shall be capable of givin grated output without reduction in the expected life span when operated continuously. The rotating assembly shall be dynamically balanced as per standards. The starting current of the motor shall not exceed 200% of rated full load current for Star/Delta or ATS starting under any circumstances. The motor shall be suitable for full voltage star delta/ATS starting.The locked rotor current of the motor shall not exceed 600% of full load current unless otherwise specified. Motor shall be designed to withstand 120% of rated speed for two minutes with out any mechanical damage, ineither direction of rotation.The motor vibration shall be with in the limit specified in applicable standards. Motor should be of IE2, explosion proof compatible for VFD operation together with star-Delta/ATS starter, protection against increase in stator winding temperature (15degCelsius), bearing temperature, leakage in the stator housing and terminal box shall be provided and to be suitably inter locked with the control panel for tripping the pump incase of increase in temperature beyond set limit. Insulation class shall be of“ ClassH”anddegreeof -- Discharge 100 to 200 M3/hour.maintenance. Discharge upto 20 M3/hour

Discharge 100 to 200 M3/hour

Supply and Delivery of DI D/F Slanted seat Swing Check Valve. Body of ductile cast iron of Grade GGG 40 or equivalent grade and disc of ductile cast iron GGG 40 or equivalent grade with fully encapsulated EPDM rubber, where both faces can be used. Electrostatic epoxy powder/liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy Powder should be approved by W 270. (EP-P) it is a resi-coat powder approved for drinking water application, applied through fusion bonding process by dipping the shot-blasted casted components heated up to 200 deg C). Face to face dimensions as per EN558-1, series 48 and flange connections as per EN 1092-2/IS 1538

Supply and delivery of DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16

Labour Charges for erection of Horizontal shaft, centrifugal pumpset (Coupled/Monoblock) in bore well/Open well including fixing of suction pipe and foot valve upto a maximum depth of 7 metres and delivery pipes to the 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 for 10 days including signing of completion of reports as required by EB authorities. Above upto 10 HP

JPCNAMAKKAL (BID ID -1185062)