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C.R.I. 80 mm (3″) 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.
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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
- Extremely hardwearing water lubricated bearing
- Easy to dismantle & repair
- Fitted with imported thermal overload protector in single phase motor
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SPECIFICATIONS Power range 0.37 kW 1.1 kW (0.5HP-1.5 HP) Speed 2850 RPM Version Single-phase, 200 – 240V, 50Hz AC supply Maximum total head 125 metre Maximum flow rate 5.4 m3 /h Maximum outer diameter in mm 78 mm Nominal outlet size in inches 25,32 & 40 mm Degree of Protection IP 58 Direction of Rotation Counter Clockwise from driving end. Thrust Load 650 lbs. Minimum cooling flow along the motor 0.15 m/sec Type of duty S1 (Continuous) Method of starting Capacitor Start and Capacitor Run (CSCR) Maximum starts per hour 20 times. 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 10 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 Check Valve Delrin Check Valve seat Nitrile butyl rubber Outer shell SS – 304 / SS (DIN 1.4509) Impeller Noryl Diffuser chamber Noryl Stop ring Hylem Intermediate bearing (Sleeve / Bush) SS 304 / NBR Suction inter connector Cast iron Pump shaft SS 304 Coupling SS 410 Material of Construction of Motor Part Name Material Shaft seal Nitrile butyl rubber Stator Shell SS – 304 / SS (DIN 1.4509) Thrust pad Graphite Carbon Thrust base SS 420 Diaphragm High Nitrile butyl rubber Motor base Cost iron Shaft SS 410