All Products >> Agriculture & Residential Pumps >>Openwell Submersible Pumpsets Csm / Cv / Cvh /Series
  • C.R.I. Openwell Submersible pumpsets are ideally suitable for openwells or tanks where a

    wide fluctuation of water level occur. This work under water and rest at the bottom of the well.

    Prime mover is rewindable, 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 silicon steel laminations assembled under pressure and rigidly locked.

    Motor sealing is made by polymers, ‘O’ rings, oil seals and sand guard to avoid ingress of

    well water / sand into the motor. Pressure equalizing 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.


    • Agriculture
    • Domestic
    • Irrigation
    • Gardens
    • Industrial
    • Rural water supply


    Clean, thin, non-aggressive, non explosive, clear, cold, fresh water without abrasives, solid particles or fiber having the following characteristics


    • No suction & priming problem
    • Noiseless operation
    • High Operating efficiency
    • No need of Pump House
    • Can be easily dismantled and repaired


    Power Range 2.2kW – 15kW (0.5 HP – 20 HP) Horizontal,
    2.2kW – 37kW (1.0 HP – 50 HP) Vertical
    Speed 2900 RPM
    Versions Three-phase, 380 – 415V – 50Hz, AC Supply
    Maximum total head Upto 341 metre
    Maximum flow rate Upto 195 m3 /hr (54 lps)
    Degree of protection IP 58
    Direction of rotation Counter Clockwise from driving end.
    Nominal delivery size 50, 65, 80 & 100 mm
    Type of duty S1 (Continuous)
    Method of starting Direct on line upto 5.5kW, SD upto 37kW
    Maximum start per hour 10 times

    Material of Construction

Material of Construction – PUMPSET
Part Name Material
Rear cover / Bracket Cast iron
Stator shell Cast iron / S.S / M.S
Shaft SS AISI 410 / EN-8
Impeller Cast iron / SS 410 / LTB-2
Pump casing Cast iron
Shaft seal Nitrile butyl rubber
Thrust assembly Leaded Bronze & Compostos /
SS 420 with Graphite Carbon
Diaphragm High Nitrile butyl rubber
Journal bearings LTB 4


Maximum liquid temperature 33°C (max.)
Permissible amount of sand 25 gm/m³ (max.)
Allowable solid 3000 ppm (max.)
Chlorine ion density 500 ppm (max.)
Turbidity 50-ppm silica scale (max.)
Hardness (Drinking water) 300 ppm (max.)
Specific gravity 1.004 (max.)
Viscosity 1.75 x 10 m2/sec (max.)
pH Value 6.5 to 8.5


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