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 : 3000 GPH Head : 60 Mtrs Efficiency = Not less than 50% Speed = 2900 Rpm Type of pumping Equipment = Vertical Sub. Type of fluid to be handled = Clear Water MATERIAL OF CONSTRUCTION: Impeller = Stainless Steel/Bronze/CF8M/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:- Rating = not less than 7.50 HP Method of starting = Star – Delta Speed = 3000 (Sync). Frequency = 50 ± 3 % Hz Working Voltage = 380 ± 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-28) at other end for 80 mm diameter 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. Note: Providing of test certificate & Characteristic Curve of pumping equipment is compulsory and pumping unit is to be approved before procuring.

Fabrication, providing, fitting and lowering of column pipe conforming to IS: 1239 of length 10 Rft into the tube well up to the desired depth ; The job includes Providing and welding of flanges conforming to IS: 6392, Table-17 and PN 16 to these pipes and welding of flanges in two layers to make the flanged joint strong and leak proof. The pipe of 10 ft length is to be weld on both sides with flanges using welding rod of reputed make. The job includes all types of skilled labors, arrangement of power supply/ diesel Generator set etc required for the job including P/F of suitable size nuts bolts and R.I Gasket in the flanged joints of column pipes. The job further includes cutting of 2 No. rectangular cable slots in each flange. Size : DN 50 Rating: PN 16 Class: B (Medium) Test/inspection certificates from the Manufacturer must be produced on delivery of the item.

Fabrication, providing and fitting of washout Tee. The Tee shall be fabricated out of G.I C-class pipe with M.S Flanges conforming to BIS 6392/1997 Table 17 (Rating PN16) fastened with weld joints on three ends. The size of the Tee is given Below: Size : DN 50 MM (For Kamad Checherpora)