कृषि पम्प » Vertical Openwell Submersible Pumps

These centrifugal pumps are ideally suitable for openwells or tanks where there is a wide fluctuation in water level. This works under water and it rests at bottom of the well. Hence suction and priming problem do not arise. Pump’s volute chamber is designed to give the best possible hydraulic efficiency. Dynamically balanced impeller offers vibration free operation with long life. Prime mover is rewindable with water-cooled motor. Specially designed water lubricated bearings are used to withstand axial thrust loads with minimum wear and tear. The stator is wound with special water proof synthetic film insulated copper winding wires and made up of low watt loss steel laminations assembled under pressure and rigidly locked in stainless steel stator shell. Dynamically balanced rotor gives vibration free and noise free operation, thereby increases efficiency and life cycle of the motor. Motor sealing is made by means of grommets, ‘O’ rings, oil seals and sand guard to avoid ingress of well water / sand into the motor. Pressure Equalising rubber diaphragm is provided to guard the pressure and volume variation of water inside motor. Motor must be filled with clear, cold, drinking water as detailed in our operator’s manual. Three phase motor requires an adequate motor protection control panel.
Power Range 0.55kW – 30 kW ( 0.75HP – 40HP )
Speed 2880 RPM
Version Single phase 200-240V, Three phase, 380 -415V, 50Hz, A.C Supply
Maximum total head 300 metres (30.0 bar )
Maximum flow rate 230400 LPH (230.4 M3 / Hr)
Nominal outlet size in inches 1, 1¼,1½, 2 ,2½,3,4 & 5
Degree of Protection IP 58
Direction of Rotation Clockwise from driving end
Type of Duty S1 (continuous)
Method of starting Capacitor Start  Capacitor Run (CSCR) / Permenant Split Capacitor (CSR) Direct on Line upto 5.5 kW, SD upto 30kW
Maximum starts per hour 6 times
  • SS and carbon thrust bearings used in vertical openwell sub
  • Bronze impeller in specific models
  • Specially designed journal bushes for better cooling effect
  • Designed for extensive voltage fluctuations
  • High operating efficiency
  • Detachable pump and motor in vertical higher stage pump
Material of Construction
Part Name Material
Rear cover / Bracket Cast iron
Stator Shell Cast iron / S.S / M.S
Impeller Cast iron (FG 200 / S.S AISI - 304 / Lead Bronze
Shaft SS AISI 410
Pump casing Cast iron (FG 300)
Shaft seal Nitrile butyl rubber
Thrust assembly Leaded Bronze and Compostos / Stainless Steel 420 with Graphite Carbon
Diaphragm High Nitrile butyl rubber
Journal bearings LTB 4
Vertical Openwell Submersible Pumps
 
 
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