Kerala Water Authority Tender

1:Supply, Erecting and Commissioning of Pump Set

OD122520/2023-2024:Design, Supply, erection, testing, trial running and commissioning of following 1.Non-clog wet well installed sewage raw water submersible pump with monoblock motor having a Discharge(Q) 360m3/hr, Total Head(H) 31m speed less than 1000rpm with all accessories at pump house of the following specifications: Pump: Non-clog dry well installed submersible pump with 20m cable with the following specifications and materials of construction for pumping sewage of specific gravity 1.05 with monoblock motor construction and soft starter panel speed (N)-1500 rpm, Q 165.83 M3/hr H 34.779 M efficiency not less than 70% 2. Motor-Supply, erection, testing and commissioning of KWA prequalified reputed make horizontal solid shaft foot mounted TEFC squirrel cage induction motor suitable for the above pump working on 3 phase 50 Hz Ac supply, working voltage 415V/3300 V(select suitable), 1500rpm. The motor shall confirm to Latest IE standards including providing suitable concrete foundation, including cost of materials etc. complete for 3300 V motors digital motor protection. Relay shall be included in starter as per present IE rules. . Flexible coupling shall be used for coupling of pumps and motors 3. Starter. Supply erection testing and commissioning of suitable rating (Fully automatic starter with air break contact for less than 100 HP and for above 100 HP FCMA starter to be used) . Here soft starter to be provided. Starter suitable for the above motor with over voltage and under voltage protection, single phase preventor, overload relay with motor protection relay with main contactor and bye pass contactor as per IE rules and code of practice etc complete 4. Panel board - Supply , erection, testing and commissioning of cubical type wall mounted MS fabricated dust and vermin proof common control panel board consisting of 1 No. suitable capacity motor protection MCCB as incomer and and No of suitable capacity MCCB as outgoing providing suitable size Aluminium bus bar to interconnect the above MCCBs and fitted with 3 Nos of indicator lamps,1 no. volt meter with selector switch ,1 no. Ammeter with selector switch for measuring current in each phase etc. complete and provided with a common earth bus for the entire panel and inter connect with the MCCBs as per IE rules and code of practice. The panel shall be fitted on a common base frame on suitable foundation. 5. Cabling work - Supply, laying testing and commissioning of suitable size XLPE copper cables for the above pump set from panel board to starter and from starter to motor considering energy conservation for a total length of 10 M. 6. Earthing - Supply of all materials and providing suitable earthing by using suitable size pipe /plate earthing GI/copper strip buried in ground and giving double earthing to motor, starter, panel board etc. as per IE standards. 7. Capacitor - Supply, erection testing and commissioning of heavy duty APP capacitor for the motor to get a power factor above 0.95. Capacitor should be conn1ected to external contactor, and the capacitor shall confirm to IS 2834 8.Valves and Pressure gauges – Supply, Erection and commissioning of suitable size best quality heavy duty ISI marked CI double flanged Sluice Valve electrical actuator (capable of operating in Fully, Semiautomatic modes and also in manual mode), Non Return Valve and Pressure Gauges with suitable Pressure rating. Fitting of valves shall include proper RCC support. In case of positive suction pipes set sluice valve should be in suction as well as delivery sides for easy repair works. 9. Suction and delivery pipe connection - Supply and fitting of suitable size best quality MS pipe of shell thickness not less than 10 mm for a total of 10 m. suitable for the above pump set and suitable size foot valve and connecting the suction pipe and valve with suitable flanges, nut and bolts IR sheet etc complete and connecting the delivery side of thr pump with the valves and suitable specials to connect the pumping main. If the dia of suction pipe is above 80 mm CI pipes and specials shall be provided. Efficiency of pumpset shall not be less than 70 %. The guarantee period is minimum two years with full replacement of above mentioned units . As per the order no. 9710/ae 15/2021/kwa dtd 8-2-2023