Deep Well Jet Centrifugal Pump sets

C.R.I. Deep well Jet Centrifugal pumpsets volute chamber and impellers are designed to give

the best possible hydraulic efficiency and suction lift characteristics. These pumpsets are

powered by a totally enclosed fan cooled (TEFC) and screen protected drip proof (SPDP), AC

induction two pole motor suitable for continuous duty. Motor stator is made of low watt loss

silicon steel laminations. The windings are of high-grade enameled copper wire and are

varnish impregnated. Construction of motor frames and usage of quality materials result in

high performance and low temperature rise thereby increasing the life cycle of the motor.

C.R.I. Deep well Jet Centrifugal are available in twin type and packer type versions. Packer

type is suitable for 50mm and 75mm borewells and twin type is suitable for

borewells with a diameter of 75mm and above. In twin type jet pumpsets, there are

two pipes viz. suction pipe and pressure pipe which connects the jet assembly to the pump.

Pressurised water flows through the pressure pipe to the nozzle from the pump casing.

Water sucked through the footvalve and the water passing through the nozzle mix together

and flow through the suction pipe into the pump, and for packer type Jet pumps, the casing

of tube well does the function of pressure pipe, ie. pressurised water flows through the tube

well casing and enters the nozzle. Hence, one pipe is eliminated.
- Domestic
- Farms
- Gardens
- Civil applications
PUMPED LIQUIDS

Clean, thin, non-aggressive, non explosive, clear, cold, fresh water without abrasives, solid particles or fiber having the following characteristics.
- Dynamically balanced rotating parts including rotor and impeller
- Balanced and rigid construction
- Single shaft ensures permanent & correct alignment.
- Inbuilt thermal over load protector in all single-phase pumpsets
- Good suction lift characteristics
- High operating efficiency results in lower power consumption

SPECIFICATIONS
Power	0.37kW to 1.1kW (0.5 HP – 1.5 HP)
Speed	2880 RPM
Versions	Single-phase 220 – 240V, 50Hz, AC supply (Permanent Split Capacitor – PSC). Three-phase 380 – 415V 50Hz, AC supply.
Maximum flow rate	Upto 0.83 lps (3m³ /hr)
Degree of protection	IP 44 / IP 54
Direction of rotation	Clockwise from driving end. Counter clockwise from driving end (A18, A19, A40, A41)
Class of insulation	B / E
Type of duty	S1 (Continuous)
Maximum suction lift	61 metre
Type of duty	S1 (Continuous)
Nominal pumpset size (Suction x Pressure x Delivery)	25 x 20 x 25, 25 x 25 x 25 32 x 25 x 25 & 40 x 32 x 25 mm

Material of Construction

Material of Construction
Part Name	Material
Rear cover / Bracket	Cast Iron
Motor Frame	Cast iron / Aluminium
Shaft	SS AISI 410
Impeller	Cast iron / Bronze / Polypropylene
Pump casing	Cast iron
Sealing	Mechanical Seal (Carbon & Ceramic)

CHARACTERISTICS OF CLEAR COLD WATER

CHARACTERISTICS OF CLEAR COLD WATER
Maximum liquid temperature	33°C (max.)
Permissible amount of sand	25g/m³ (max.)
Allowable solid	3000 ppm (max.)
Chlorine 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 10 m²/sec (max.)
pH Value	6.5 to 8.5

PUMPED LIQUIDS