Deepwell Submersible Pumps - Silver Line Series

Silver Line Series

C.R.I. 3” Silver line series Submersible pumps are built with thermoplastic impellers, diffusers and inbuilt check valve. All vital components of these pumps are made of corrosive resistance thermoplastic and the shaft is of SS 431. Pumps are multistage centrifugal type. The optimal design of impellers and diffusers enables the best possible hydraulic efficiency

The pumps are offered with C.R.I. Oil filled motors, which operates submerged beneath the surface of water.

C.R.I. 4” Stainless Steel Submersible pumps are made of corrosion resistance Stainless Steel with inbuilt check valve. All vital components are made of high quality 304 / 316 grade Stainless Steel and the shaft is of SS 304 / 329 / 431. The optimal design of impellers and diffusers enables the best possible hydraulic efficiency

The pumps are of multistage centrifugal type, which can be firmly coupled to a submersible electric motor, which operates submerged beneath the surface of water. Built in check valve prevents back flow and reduce the risk of water hammer. All mounting dimensions of pumps are in accordance with NEMA Standard.

Pump Specifications
Nominal Dia. 3" 4"
Maximum Outer Dia. 75 mm 3.94 inches
Power Range 0.33 HP - 1.5 HP 0.3 HP - 20 HP
Speed 3450 rpm 3450 rpm
Discharge Range 2.5 to 15 US gpm 2 - 96 US gpm
Head Range 32.8 to 416 ft 20 - 2220 ft
Maximum Liquid Temperature 33º C 91.4º C
Maximum Operating Pressure 0.14 MPa (14 bar) 960 psi
Permissible amount of Sand 25 g/m³ (max) 0.42 lb / 1000 gal (max)
Allowable Solids 3000 ppm (max) 3000 ppm (max)
Turbidity 50 ppm Silica Scale 50 ppm Silica Scale (max)
Nominal Flow 2.5 m³/h
Head Maximum 127 m / 416 ft
Nominal outlet size 1”
Nominal Flow US gpm 5 7 10 16 25 40 75
Head Maximum ft 1990 895 2180 2220 1541 1810 506
Nominal outlet size inches 1 1 2 2

Can be fitted only with C.R.I. Oil filled rewindable submersible motors.

Motor Specifications
Motor Type Oil Filled
Maximum outer Dia. 78 mm
Power Range 0.33 - 1.5 HP
Speed 3450 rpm
Versions A.C. Single Phase 220 V - 60 Hz
Incorporated with Thermal Overload Protector
A.C. Three Phase 380 V - 60 Hz
Incorporated with Thermal Overload Protector
Method of Starting CSR
Type of duty S1 (Continuous)
Degree of protection IP 68
  • Best operating efficiency
  • Floating Impeller design to handle sand
  • S.S. 304 / Ceramic top bearing,
  • Highly durable
  • Water cooled rewindable / Encapsulated
  • Resin filled motor
  • Can be easily dismantled and repaired
  • Can handle more upthrust loads,
  • Wearing ring in diffuser for long life
Part Name Type - P
Check Valve Housing SS 304
Check valve Delrin
Outer Shell SS 304
Impeller Noryl/Delrin/Lexon
Pump Shaft SS 304
Coupling SS 329
Suction inter Connector SS 304
Inlet Screen SS 304
Cable Guard SS 304
  • Residential
  • Irrigation
  • Civil Water supply
  • Fountains
  • Industrial and rural water supply
  • Fire fighting
  • Pressure boosting units
  • Gardens
  • Sprinkler systems