All Products >> Agriculture & Residential Pumps >>100 mm (4″) Borewell Submersible Pumpsets – CRI 4R / CRI 4F / CRI 4M / CRI 4P / CRI 4S
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    C.R.I. 100 mm (4″) Borewell Submersible pumpsets is firmly coupled to a submersible

    electric motor which operates submerged beneath the surface of water. Built-in check valve

    prevents back flow and reduces the risk of water hammering. All mounting dimension of

    100mm (4″) pumpsets and motors upto 2HP are in accordance with NEMA standard.

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    • Domestic and municipal water supply
    • Rural water supply
    • Irrigation
    • Sprinkler system
    • Pressure boosting units and Fire fighting system
    • Industrial and mining application
    • Fountains
    • Ponds and Gardens

    PUMPED LIQUIDS

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

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    • Motor portion covered with corrosive resistance Stainless Steel (SS 304) shell
    • Floating impeller design prevents blockage
    • More longevity and hygiene
    • High operating efficiency
    • Specially designed thrust bearing to withstand high axial thrust load
    • Angular contact bearing to withstand axial thrust load
    • NEMA mounting standard upto 2.0 HP
    • Extremely hardwearing water lubricated bearing
    • Easy to dismantle & repair
    • Fitted with imported thermal overload protector in single phase motor
    • Stainless Steel pumpsets are available

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    SPECIFICATIONS
    Power range 0.37kW – 7.5 kW (0.5HP – 2HP)
    Speed 2850 RPM
    Version Single-phase, 200 – 240V; Three-phase 380 – 415V; 50Hz, AC supply
    Maximum total head 544 metre
    Maximum flow rate 25.2 m 3/h
    Maximum outer diameter in mm 98 mm
    Nominal outlet size in inches 32, 40, 50 & 65 mm
    Degree of Protection IP 58
    Direction of Rotation Counter Clockwise from driving end – Single-phase, Electrically reversible – Three-phase
    Thrust Load 0.37kW-1.1kW – 650 lbs; 1.5kW – 4.0kW – 900lbs; 5.5kW-7.5kW – 1500 lbs
    Minimum cooling flow along the motor 0.15 m/Sec
    Type of duty S1 (Continuous)
    Method of starting Capacitor Start Capacitors Run / Permanent split
    Maximum starts per hour 20 times.
    Mounting standard As per NEMA

    Characteristics of Clear Cold Water

    Maximum liquid temperature 33°C max
    Permissible amount of sand 25 g/m³
    Allowable solids 3000 ppm (max.)
    Chloride ion density 500 ppm (max.)
    Turbidity 50 ppm silica scale (max.)
    Hardness (Drinking water) 300 ppm (max.)
    Specific gravity 1.004 (max.)
    Viscosity 1.75 x 106 m²/sec (max.)
    pH Value 6.5 to 8.5

    Materials of Construction 

    Material of Construction of Pump
    Part Name Material
    Check Valve housing Cast iron / SS – 304
    Check Valve Delrin
    Check Valve seat Nitrile butyl rubber
    Outer shell SS – 304 / SS (DIN 1.4509)
    Impeller Noryl / Delrin / SS – 304
    Diffuser chamber Noryl / SS – 304
    Stop ring SS – 304 / Hylem
    Intermediate bearing (Sleeve / Bush) SS 304 / NBR
    Suction inter connector Cast iron / SS – 304
    Pump shaft SS – 304 / SS – 410
    Coupling SS – 304 / 410
    Material of Construction of Motor
    Part Name Material
    Shaft seal Nitrile butyl rubber
    Stator shell SS – 304 / Duplex SS (DIN 1.4509)
    Thrust pad Graphite Carbon
    Thrust base SS – 420
    Diaphragm High Nitrile butyl rubber
    Motor base Cast iron
    Shaft SS – 410 / 431

     

     

 

 

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