Public Health Engineering Department Tender

Supply, Installation, Testing & Commissioning of Submersible Pumping Unit as per IS 8034 with following specification are as under: PUMP::Discharge range = 4000 -5000 GPH, Head Range = 60-70 mtr Efficiency = Not less than 50% Speed = 2900 RPM Type of pump = Mixed flow. Type of fluid to be handled = Clear Water MATERIAL OF CONSTRUCTION: Impeller = Stainless Steel/Chrome Steel Pump Shaft = Stainless Steel SS 410. Pump Casing = Cast Iron/Stainless steel IMPELLER: Impeller is of the enclosed or semi – enclosed type and properly balanced. Enclosed Impellers equipped with seal rings on their hubs. COUPLING:A suitable coupling arrangement provided with pump set. Non Return Valve: Non Return Valve of the suitable size provided above the pump discharge case. MOTOR:-3 phase induction squirrel cage Motor rating: 7.5 HP Method of starting = Star – Delta, Speed = 2900 RPM (Sync). Frequency = 50 ± 3 % Hz Working Voltage = 400± 15% V, 03 phase, Efficiency = Not less than 90% Class of insulation = F/Suitable for above parameters Submersible motor should be water filled water lubricated squirrel cage type having capacity for above pumping parameters and working on 3 phase; AC supply ranging from 380 to 415 volts, 50Hz. The motor should be sealed by radial rings to avoid mixing of well water with motor filled water. a) The job includes providing and fitting of interlocking arrangement against any failure of coupling. It must be fabricated out of MS strips of suitable size and length. b) The job includes providing and fitting of appropriate size MS nipple 2 feet long threaded on one end and welded to same size MS flange of thickness (as per Table-17) at other end for column pipe as per site requirement. The threaded portion should be as per size of pumping out let for proper fixing. The job includes providing and fitting of R. I. cloth joints/rubber washers with nuts, bolts and washers for all joints of column pipe. The job also includes lowering of pumping unit in the well then proper testing and commissioning of pumping unit on full load at site.

Fabrication, providing and fitting of split type MS clamps10 mm thick, 2 ft long and 3 inch wide for lowering and holding of pumping unit fitted. The job includes the cost of required size of nuts and bolts. Size:80mm

Providing and fitting of pump motor controller for maximum of motor output for 20 HP at 415 V three phase with following features: Rating----15HP (MUG 15) Relay range-----9-14A Protections----overload, single phase, phase reversal, phase imbalance auto restart etc.Features vibration proof enclosure with IP 54 Protection class , indication offered ON/OFF, Voltage and amperes. The job includes providing of all necessary thimbles and allied works and installtion on the existing pannel board.