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100 mm (4") Borewell Submersible Pumps

C.R.I. 100 mm (4") Borewell Submersible pumpsets are built with impellers & diffusers made of thermo plastics and other vital components like check valve housing and suction inter connector are made of graded cast iron, outer shell made oh high quality stainless steel. The optimal design of impellers and diffusers offers best possible hydraulic efficiency. These pumps are powered by a water filled, rewindable submersible motor suitable for un-interrupted duty. 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. Specially designed high performance thrust bearings (SS with Carbon) are used to withstand axial and down thrust loads with minimum wear and tear. Dynamically balanced rotor gives vibration free and noise free operation, thereby increases efficiency and life cycle of the motor.

Features Specifications (MOC) Pump (MOC) Motor
  • Fitted with imported motor protector in single phase motors
  • Silver brazed rotor
  • 29 Feet head per stage in specific models
  • High operating efficiency
  • Extremely hardwearing water lubricated thrust bearings
  • Designed for extensive voltage fluctuations
  • Can be easily dismantled and repaired
Power range 0.37kW – 5.5 kW (0.5HP – 7.5HP)
Speed 2880 rpm
Version Single Phase, 200 – 240V, Three Phase, 380 – 415V, 50 Hz, A.C. Supply
Maximum total head 395 metre (39.5 bar)
Maximum flow rate 18000 LPH (18 M3 / Hr)
Maximum outer diameter in mm 97 & 98.
Nominal outlet size in inches 1 ¼, 1 ½, 2 & 2 ½
Degree of Protection IP 58.
Direction of Rotation Clockwise from driving end.
Thrust Load 1500 lbs.
Minimum cooling flow along the motor 0.15 m/sec
Type of duty S1 (Continuous)
Method of starting Direct on Line, Capacitor Start Capacitor Run (CSCR) / Permanent split Capacitor (CSR)
Maximum starts per hour 12 times.
Mounting Standard As per NEMA

Material of Construction of Pump
Part Name Material
Check Valve housing
Check Valve Seat
Nitrile Butyle Rubber
Diffuser Chamber
SS 304 (Shell) & Cast Iron
Modified PPO (Noryl) & Iron
Modified PPO (Noryl) & Cast Iron
Suction Inter Connector
Cast Iron
Inlet Screen
SS 304
Pump Shaft
SS 410
Cable Guard
SS 304
SS 410 & SS 304

Material of Construction of Motor
Part Name Material
Upper and Lower Housing
Cast Iron & Mild Steel
Stator Shell
Stainless Steel 304
Stainless Steel 410
Journal Bushes
Leaded Bronze
Thrust Assembly
Stainless Steel 420 and Graphite Carbon