Ashish Auto

CRI Centrifugal Monoblock Pump (CH, CS & BP Series)

C.R.I. Centrifugal monoblock pumpsets volute chamber and impellers are designed to give the best possible hydraulic efficiency and good suctio lift characteristics. Most modern and highly sophisticated machinery and technology are engaged in manufacturing these pumpsets, using quality raw materials, dynamically balanced impellers and rotors to ensure long life. These pumpsets are powered by a totally enclosed fan cooled AC Induction two pole motor or four pole motor, suitable for continuous duty. Motor stator is made with low watt loss Silicon steel laminations assembled under pressure and rigidly locked in the frame. The windings are of high-grade enamelled copper wire and are varnish impregnated. Construction of motor frames and usage of quality materials result in high performance and low temperature rise thereby increasing the life cycle of the motor. These pumpsets require adequate motor protection control panel.

Applications :

  • Irrigation
  • Agriculture
  • Farms
  • Gardens
  • Industrial & Civil applications

Salient Features :

  • Designed for wide voltage fluctuations
  • Single shaft for motor and pumpset ensures good mechanical strength.
  • Dynamically balanced rotating parts such as impeller and rotor.
  • High operating efficiency resulting in lower power consumption.
  • Good Sunction lift characteristics
  • Balanced rigid construction
  • Bronze impeller in specific models
  • Graphite coated asbestos packing rope is used to increase bush life.
  • Monoblock with extension shaft in specific models

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


Power Range 2.2 kW -15 kW (3HP-20 HP ) CH Series 2.2 kW & 3.7kW (3HP & 5 HP) – DM Series 1.5 kW - 9.3 kW ( 2HP – 12.5 HP) –CS Series
Speed CH & DM Series -2880 RPM, CS Series -1440 RPM
Versions Three Phase, 380 -415V, 50Hz,A.C. Supply
Degree of protection IP 44
Class of Insulation A, E,& B
Direction of rotation Clockwise viewed from Driving end
Type of Duty S1 (Continuous)

Material of Construction of Motor

Part Name CH Series CS Series DM Series
Pump Casing Cast Iron Cast Iron Cast Iron
Motor Frame Cast Iron Cast Iron Cast Iron
Impeller Cast Iron / Bronze Cast Iron Cast Iron
Shaft Mild Steel Mild Steel Mild Steel
Sealing Gland Rope Gland Rope Gland Rope

Characteristics of Clear Cold Water

Permissible Amount of sand 25 gm/m3 (max.)
Allowable solids 3000 ppm (max.)
Chloride ion density 500 ppm (max.)
Turbidity 50 ppm silica scale (max.)
Hardness (drinking water) 300 (max.)
Maximum liquid temperature 33 oC
Maximum ambient temperature 40 oC
Specific Gravity 1.004 (max.)
Viscosity 1.75 x 106 m2/sec.
Ph 6.5 to 8.5