औद्योगिक पंप » 250 mm (10 inch) Borewell Submersible Pumps CM Series

C.R.I. 250 mm (10") Borewell submersible pumpsets are made with different materials of construction together with extremely hardwearing bushes which makes this pump highly durable. These pumps are supplied with stainless steel & LTB-2 impellers to give better performance and longer life and other vital components like check valve housing, stage bowls and suction inter connector are made of graded cast iron. 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 continuous 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 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.
SPECIFICATIONS
Power range 7.5kW – 93 kW (10HP – 125HP)
Speed 2880 RPM
Version Three Phase, 380- 415 V,  50 Hz, A.C. Supply
Maximum total head 164 m
Maximum flow rate   65 lps
Nominal outlet size in mm 150
Degree of Rotation Anticlockwise from driving end.
Direction of Protection IP 58
Type of Duty S1 (Continuous)
Thrust Load 10000 lbs / 45500
Minimum cooling flow along the motor 0.16 m/sec
Method of starting S/D 7.5kW - 93 kW
Maximum Outer Diameter in mm 247
Maximum starts per hour 4 times
  • Pumps are designed to give more discharge
  • Extremely hard wearing water – lubricated bearings
  • Designed for wide voltage fluctuations
  • Silver brazed rotor
  • 6” motor and 8” pump combination on request
MATERIAL OF CONSTRUCTION OF PUMP
Part Name Material
Check Valve housing Cast iron (FG 200)
Check Valve Seat Nitrile butyl rubber / S.G Iron
Diffuser Chamber Cast Iron (FG 250)
Impeller SS AISI - 410 (Casted) / LTB - 2
Suction Inter Connector Cast iron (FG 200)
Inlet Screen SS AISI - 202
Pump Shaft SS AISI - 410 / SS AISI - 431
Cable Guard SS AISI - 202
Coupling SS AISI - 410 / SS AISI -431
 
MATERIAL OF CONSTRUCITON OF MOTOR
Part Name Material
Diaphragm High Nitrile butyl rubber
Journal bearings LTB - 4 / Graphite Carbon
Thrust Assembly SS AISI 420 and Graphite Carbon
Lower / Upper housing Cast iron (FG 200) / (with outer shell SS AISI 304 - on request)
Stator shell SS AISI 304
Shaft EN 9 with SS - 410/431 sleeve at bush guide
10 inch Borewell Submersible Pumps
 
 
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