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The pump is multistage type of latest hydraulic design for maximum performance and operating efficiency. Impellers are dynamically balanced. The stainless steel shaft is lapped to close tolerances, guided by water lubricated rubber bearings, provided at in each bowl of impeller casingA strainer is provided at in to the suction casing. A stainless steel coupling is provided to couple the motor and pump. A non-return valve is provided just below the rising main. Hydrostatic test is conducted on each pump set 2 times the maximum discharge pressure.VENUS pump sets are manufactured and tested conforming to IS : 8034-1989, specification for submersible pump sets for clear, cold, fresh water. |