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C.R.I. 100 mm (4″) Borewell Submersible pump sets 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″) pump sets and motors up to 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 up to 2.0 HP
- Extremely hardwearing water lubricated bearing
- Easy to dismantle & repair
- Fitted with imported thermal overload protector in single phase motor
- Stainless Steel pump sets 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 meter 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 10²/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