Public Health Engineering Department Tender

Supply, Installation, Testing & Commissioning of Openwell Submersible horizontal Pumping Unit as per IS 14220 with latest amendments having the specification as under:- PUMP: Discharge = 550 LPM Head = 56 m Efficiency = Not less than 50% Speed = 2850 Rpm Type of pump : Mixed flow. Type of fluid to be handled = Spring water MATERIAL OF CONSTRUCTION: Impeller = Stainless Steel / Bronze/ chrome steel/Cast Iron 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:- Method of starting = Star – Delta Speed = 2850 (Sync). Frequency = 50 ± 3 % Hz Working Voltage = 380-415 ± 15% V, 03 phase Efficiency =As per IS 9283 (2013) with latest amendments. Rating = Not less than 15 HP Class of insulation = F/ B Submersible motor should be water filled, water lubricated squirrel cage type ,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 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 65 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 .

Fabrication, providing, fitting and lowering of "B "Class column pipe conforming to IS: 1239 of length 10 Rft into the 200 mm casing dia. production well up to the desired depth & for sump ; 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 labours, 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. Any modification to the column pipes /flanges required during lowering is included in the job.: Size : DN 65

Fabrication, providing and fitting of split type MS clamps 10 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.(Pair) Size : 80 mm