Ashish Auto

CRI Regenerative Monoset Pump (NR & ENR Series)

C.R.I. Regenerative Monoset pumpsets volute chamber and impellers are designed to give the best possible hydraulic efficiency and sunction lift characteristics. Sealing is by means of a bellows mechanical seal made of carbon and ceramic fitted over the shaft, which is ground to close tolerance. These pumpsets are power-driven by a totally enclosed fan cooled AC induction two pole motor, suitable for continuous duty. Motor stator is made of low watt loss silicon steel laminations assembled under pressure and rigidly locked in the frame. Dynamically balanced rotor ensures vibration free and noise free operations and increase the life of the bearings and seal. The windlings are of high – grade enameled 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. A thermal cutout relay (motor protector) is incorporated in all single-phase motors. All single-phase pumpsets require a adequate starter / motor protection control panel. Non-self priming model is with end suction and radial delivery.

Applications :

  • Domestic
  • Small Garden
  • Pressure boosting
  • Civil applications

Salient Features :

  • Built-in with imported motor protector
  • Intended for wide voltage fluctuations
  • Powder coated stator body
  • Sturdy and compact
  • Double sealed ball bearings

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


Power 0.185kW – 0.75 kW (0.25HP-1HP)  
Frequency / Speed 50 Hz / 2880 RPM
Versions Single phase, 200-240 V, 50 Hz, A.C Supply Permanent split capacitor (CSR) incorporated with thermal cutout relay ( motor protector)
Fow Rate Upto 0.92 lps (3.3 m3/h)
Maximum Total Head Upto 50 metres
Maximum Operating Pressure 5.0 bar
Degree of Protection  IP 44
Class of Insulation B
Direction of Rotation Clockwise viewed from driving end
Type of Duty S1 (Continuous)
Sealing Mechanical Seal (Carbon & Ceramic)
Maximum Suction lift in Metre Up to 8
Maximum Liquid Temperature 33oC
Maximum Ambient Temperature 40oC
Nominal Pump Size in Inches (Suction x Delivery) ½ x ½ , ¾ x ¾  & 1 &1

Material of Construction

Part Name Material
Pump Casing Cast Iron
Motor Frame Aluminium
Impeller Brass
Shaft Stainless Steel
Sealing Mechanical Seal (Carbon & Ceramic)

Characteristics of Clear Cold Water

Maximum liquid Temperature 33 oC
Permissible amount of sand 25 gm/m3 (max.)
Chloride ion density 500 ppm (max.)
Allowable solids 3000 ppm (max.)
Specific gravity 1
Hardness (Drinking water) 300
Viscosity 1.75 x 106 m2/sec
Turbidity 50 ppm silica scale
PH value 6.5 to 8.5