tender for supply, delivery of 4-nos 7.5hp submersibme motor at head works in chinnamanur municipality , supply and delivery of open well submersible pump set conforming to is 14220 / 2002 and as amended thereafter and bee 3 star rated capable of discharging the following duties due to all causes. the pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, ci fg 200 grade casing and brass screws and rotor shall be of copper rod as per is 613/1984 with isi mark. the pump suitable for installation in sump with 1.1kv grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. the non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. the pump should be directly coupled to 2880 rpm, three phase, 50 hz (±5), 415v+6% & 415v-15% squirrel cage induction motor suitable for dol upto 5 hp, fully automatic air break star delta up to 20 hp and auto transformer starter for above 20 hp starting and for continuous operation , 1000 lpm x 40m head , provision for gst 18%