-
C.R.I. Borewell Submersible pump sets are powered by water filled, rewindable submersible
motor which is suitable for continuous duty. The stator is wound with special waterproof
synthetic film insulated copper winding wires and made up of low watt loss silicon steel
laminations assembled under pressure and rigidly locked in stainless steel stator shell.
Specially designed thrust bearings (SS AISI 420 with Graphite carbon) are used to
withstand axial and down thrust loads with minimum wear and tear. This 175mm & 200mm
submersible pump sets are supplied with 150mm (6″) motor combination and for 250mm
(10″) submersible pump sets supplied with 200mm (8″) motor combination only.
-
- Domestic
- Agricultural
- Irrigation
- Civil & Industrial water supply
- Ponds
- Gardens and mining
- Fire fighting
- Pressure boosting
PUMPED LIQUIDS
Clean, thin, non-aggressive, non explosive, clear, cold, fresh water without abrasives, solid particles or fiber having the following characteristics.
-
- High operating efficiency
- Dynamically balanced rotating parts ensures minimum vibration and longer life
- Designed for wide voltage fluctuations
- Better efficiency and consistent performance
- Specially designed thrust bearing to withstand high axial thrust load
- Motor portion covered with corrosive resistance stainless steel (SS 304) shell
-
SPECIFICATIONS 175mm (6/7″) 200mm (6/8″) 250mm (8/10″) Power range 3.7kW – 15 kW (5 HP – 20 HP) 5.5kW – 22kW (7.5 HP – 30 HP) 15kW – 75kW (20 HP – 100 HP) Speed 2900 RPM 2900 RPM 2900 RPM Version 380- 415 V, Three Phase, 50 Hz, A.C. Supply Three-phase, 380/415 V, 50 Hz, AC supply Three-phase, 380/415 V, 50 Hz, AC supply Maximum total head 105 m 297 meter 162 meter Maximum flow rate 97.2 m3 /h (27 lps) 136 m /h (37.8 lps) 216 m /h (60 lps) Maximum Outer Diameter 165 mm 195 mm 247 mm Nominal outlet size 100 mm 80, 100, 125 & 150 mm 150 mm Degree of Protection IP 58 IP 58 IP 58 Direction of Rotation Counter clockwise from driving end. Counter clockwise from driving end. Counter clockwise from driving end. Thrust Load 3500 lbs. 5.5 to 15kW 3500 lbs. 7.5kW – 11kW / 6000 lbs. 15kW – 18.5kW /
10000 lbs. 22kW – 75kW6000 lbs.15kW – 18.5kW /
10000 lbs. 22kW – 75kWMinimum cooling flow along the motor 0.16 m/sec 0.16 m/sec 0.16 m/sec Type of duty S1 (Continuous) S1 (Continuous) S1 (Continuous) Method of starting Direct on Line up to 5.5 kW, SD up to 15 kW SD 5.5kW – 22kW SD 5.5kW – 22kW Maximum starts per hour 20 times 10 times 10 times MATERIALÂ OF CONSTRUCTIONSÂ
MATERIAL OF CONSTRUCTION OF PUMP 175mm (7″) Pump 200mm (8″) Pump 250mm (10″) Pump Part Name Material Material Material Check Valve housing Cast iron Cast iron Cast iron Check Valve Seat Nitrile butyl rubber S.G Iron Nitrile Butyl Rubber / S.G Iron Diffuser Chamber Cast Iron Cast iron Cast iron Impeller SS – 410 SS – 410 LTB – 2 & SS – 410 Suction Inter Connector Cast Iron Cast iron Cast iron Inlet screen SS – 202 SS – 202 SS – 202 Pump Shaft SS – 410 / SS – 431 SS – 410 / SS – 431 SS – 410 / SS – 431 Cable Guard SS – 202 SS – 202 SS – 202 Coupling SS – 410 SS – 410 / SS – 431 SS – 410 / SS – 431 MATERIAL OF CONSTRUCTION OF MOTOR 200mm (8″) Motor Part Name Material Upper and Lower housing Cast iron Stator shell SS 304 / SS (DIN 1.4509) Shaft EN 8 with SS – 410 /431 sleeve at bush guide Journal bushes LTB – 4 Thrust assembly SS – 420 and Graphite Carbon Diaphragm High Nitrile Butyl Rubber Characteristics of Clear Cold Water
CHARACTERISTICS OF CLEAR COLD WATER Maximum liquid temperature 33°C (max.) Permissible amount of sand 50g/m³ (max.) Allowable solid 3000 ppm (max.) Chlorine ion density 500 ppm (max.) Turbidity 50-ppm silica scale (max.) Hardness (Drinking water) 300 (max.) Specific gravity 1.004 (max.) Viscosity 1.75 x 10 m2 /sec (max.) pH Value 6.5 to 8.5
