Ashish Auto



CRI Borewell Submersible Pump (200 MM)




C.R.I. 200 mm (8") Borewell sumbersible pumpsets are made up with different materials of construction together with extremely tough hardwearing bushes which make these pumpsets highly durable. These pumpsets are supplied with stainless steel & LTB-2 impellers to give better performance and longer life. The optimal design of impellers and diffusers offers best possible hydraulic efficiency. These pumpsets are powered by water filled, rewindable sumbersible motor which is suitable for continuous duty. The stator is wound with special waterproof synthetic film insulated copper winding wires and made up of low watt loss silicon steel laminations assembled under pressure and rigidly locked in stainless steel stator shell. Sepcially designed thrust bearings (SS AISI – 420 with Graphite 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.

Applications :

  • Agricultural Irrigation
  • Fountains
  • Civil Water supply
  • Industrial & Rural Water Supply
  • Mining
  • Sprinkler System


Salient Features :

  • Designed for wide Voltage fluctuations
  • High operating efficiency
  • Extremely tough hard wearing lubricated bushes
  • Water Cooled rewindable motor
  • Impellers are made up of stainless steel
  • Dynamically balanced rotating parts
  • Can handle maximum upthrust load
  • Can Be easily dismantled and repaired
  • 150 mm (6") motor and 200 mm (8") pumpset combination on request



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



Technical Specifications

Power range 5.5kW – 93kW (7.5 HP – 125 HP)
Speed 2880 RPM
Version Three Phase, 380/415 V,   50 Hz, A.C. Supply
Maximum total head 292 m
Maximum flow rate 45 lps
Nominal outlet size in mm 80, 100, 125 & 150
Degree of Rotation Clockwise from driving end.
Direction of Protection IP 58
Type of Duty S1 (Continuous)
Thrust Load 3500 lbs. 5.5kW - 11kW / 6000 lbs. 15kW - 18kW,
10000 lbs. 22kW - 93kW
Minimum cooling flow along the motor 0.16 m/sec
Method of starting S/D 7.5kW - 93kW DOL upto 5.5kW, SD upto 93kW
Maximum Outer Diameter in mm Ø187 upto 40 HP / Ø194.0 – 50 to 125 HP
Maximum starts per hour 4 times

Specifications

MATERIAL OF CONSTRUCTION OF PUMP
Part Name Material
Check Valve housing Cast iron (FG 200)
Check Valve seat S.G Iron
Diffuser chamber Cast Iron (FG 250)
Impeller SS AISI -  304 / 410 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
Diaphragm High Nitrile butyl rubber
Journal bushes 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 8 with SS - 410/431 sleeve at bush guide

Characteristics of Clear Cold Water

Maximum liquid Temperature 33 oC
Permissible amount of sand 50g/m3 (max.)
Allowable Solids 3000 ppm (max.)
Chloride ion density 500 ppm (max.)
Turbidity 50 ppm Silica scale (max.)
Hardness (Drinking water) 300 (max.)
Specific Gravity 1.004 (max.)
Viscosity 1.75 x 105 m2/sec
PH Value 6.5 to 8.5