Companion Traders

4" Silver Line Series

(PLASTIC IMPELLERS & DIFFUSERS)

C.R.I. 4" 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 multi stage centrifugal type. The optimal design of impellers and diffusers enables the best possible hydraulic efficiency. The pump 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. C.R.I. Submersible pumps can be offered with either C.R.I.-W Series, water filled rewindable submersible motors / C.R.I.-R Series, encapsulated semi wet type submersible motors or any other NEMA Standard motors.

Pumped Liquids

Clean, thin, non aggressive, non explosive, clear, cold, fresh water without abrasives, solid particles or fiber. Clear cold water means water having the following characteristics.

Temperature	33^oC (max)
Permissible Amount of Sand	25 gm / m³(max)
Chlorine ion density	500 ppm (max)
Allowable solids	3000 ppm (max)
Specific gravity	1.004 (max)
Hardness (Drinking Water)	300 (max)
Viscosity	1.75 x 10⁵m²/ sec (max)
Turbidity	50 ppm silicon scale (max)
pH	6.5 to 8.5

Pump Operating Limitation

Power Range

0.37 kW to 2.2 kW, 50 Hz, 230V, A.C - Single phase

0.37 kW to 7.5 kW, 50 Hz, 380V -415V, A.C - Three phase

	2900 rpm
Nominal Flow	m3/h	1.5	2	3	4	5	8	10	14	18
Head-Maximum	m	225	260	222	270	185	270	152	133	116
Nominal outlet size	Inch	1¼	1¼	1¼	1¼	1 ½	2	2	2	2

Special Features

High operating efficiency, precise parts made of SS 304 / 316, Highly durable & hygiene, Good resistance to sand, Water cooled rewindable motor, Can be easily dismantled, Can handle upthrust loads.

Advantages

Irrigation , Domestic , Civil water supply , Fountains , Industrial , Rural water supply , Fire fighting Pressure boosting units , Ponds , Gardens , Sprinkler systems and Mining.

Materials of Construction

Part Name	Type- P	Type - V
Check valve Housing	CASTED S.S. 304	NYLON-6(Polyamide)
Check valve	DELRIN	DELRIN
Check valve seat	NBR	NBR
Diffuser Chamber	LEXAN/NORYL	LEXAN
Impeller	NORYL/DELRIN	NORYL/DELRIN
Suction Inter connector	CASTED S.S. 304	NORYL
Inlet Screen	S.S. 304	S.S. 304
Pump shaft	S.S. 304	S.S. 304
Cable guard	S.S. 304	S.S. 304
Coupling	S.S. 329	S.S. 329