घरेलू पम्प » 100 mm (4") Borewell Submersible Pumps - SR, SM, SH, S4H & S4D Series

C.R.I. 100 mm (4") Submersible pumpsets are built with thermoplastic impellers, diffusers and inbuilt check valve. All vital components of these pumpsets are made of corrosion resistant thermoplastic and the shaft is of SS 304/410. Pumpsets are multistage centrifugal type. The optimal design of impellers and diffusers enables the best possible hydraulic efficiency.

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

Power Range 0.37 kW – 5.5 kW (0.5HP-7.5 HP)
Speed 2900 RPM
Version Single phase 200-240V,Three-phase 50 Hz, A.C. Supply
Maximum total head 400 m
Maximum flow rate 25.2 m3 /h
Maximum Outer diameter in mm 98
Normal outlet size in mm 32, 40, 50 & 65
Degree of Protection IP 58
Direction of Rotation Clockwise from driving end
Thrust Load 1500 Ibs
Minimum cooling flow along the motor 0.15 m/sec
Type of Duty S1 (continuous)
Method of starting Direct online, Capacitor Start Capacitors Run / Permanent split
Maximum starts per hour 20 times
Mounting Standard As per NEMA
  • More longevity & hygiene High operating efficiency
  • Floating impeller design prevents blockage
  • Easy to dismantle & repair Rigid construction
  • Highly durable Can handle up thrust load
  • NEMA mounting standard upto 2.0 HP
  • Extremely hardwearing water lubricated bearing
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
Impeller Noryl / Delrin
Diffuser chamber Noryl
Stop ring SS 304 / Hylem
Intermediate bearing (Sleeve / Bush) SS 304 / NBR
Suction inter connector cast iron
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
Thrust pad Graphite Carbon
Thrust base SS 420
Diaphragm Nitrile butyl rubber
Motor base cost iron
Shaft SS 410 / 431
100 mm (4") Borewell Submersible Pumps
 
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