CR 253 – Submersible pumps for clear and drainage water

For irrigation and drainage in clear or drainage water. Cellar drainage, pumping water from sumps, pits and rooms. Also suitable for pumping discharge from hand basins, showers and washing machines, for flood relief and water removal from water courses or reservoirs.


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Stainless steel drainage pumps with jacket cooling

CHARACTERISTICS

Submersible pumps for clear and drainage water – CR 253

APPLICATION

For irrigation and drainage in clear or drainage water. Cellar drainage, pumping water from sumps, pits and rooms. Also suitable for pumping discharge from hand basins, showers and washing machines, for flood relief and water removal from water courses or reservoirs.

SPECIFICATIONS

Spherical clearance

Max. flow

10 mm

10,0 m³/h

Discharge size

Motor power P1

G 1¼ F

0,53 kW

Max. head

Motor power P2

8 m

0,34 kW

INSTALLATION

Permanent or transportable. Model with float switch control for automatic pump operation, depending on liquid level in the sump. Guided float switch, adjustable switch level.

MATERIALS

Motor housing, pump housing, screws, suction sieve (Stainless steel) Rotor shaft (Stainless steel partially ceramic coated) Impeller (Composite) Seal kit (NBR)

PUMPED LIQUID

Clear water or drainage water containing soft solids up to 10 mm spherical clearance. Max. liquid temperature: 35°C, short term up to 60°C.

MOTOR

Fully submersible, pressure tight electric motor. Stainless steel motor and pump housing. Insulation class F. Motor protection IPX 8. Thermal sensors imbedded in the motor winding. Rotor shaft from stainless steel with ceramic coated sealing surface, pre-lubricated bearings.

FEATURES

The water jacket cooled motor with the top discharge protects the motor against overheating even during sip operation.

IMPELLER

Impeller of the CR 253 series.

For optimum adaptation to the pump medium and operating conditions.

OPEN MULTI-CHANNEL IMPELLER

For dirty and muddy media with solids.

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