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SELF-PRIMING CENTRIFUGAL PUMPS

Series CNH

The CNH series is made up of single-stage centrifugal pumps with self-priming device, axial suction port, open centrifugal impeller, independent shaft and standard IEC motor.

 

The self-priming devices is made up of a helical rotor installed in front of the impeller and a rotor chamber which is off-centre in relation to the axis of the centrifugal stage.

Mixed construction: pressed/cast stainless steel – AISI 316L (1.4404) – CF3M (1.4409).

Investment casting and electrochemical polishing treatment guarantee excellent levels of surface finish.

The pump incorporates a self-priming device which gives the centrifugal pump its suction capacity; this component guarantees continuous pump operation in applications handling biphasic fluids.

CNH self-priming centrifugal pumps can be used in industrial applications, for example in the food, dairy and beverage sectors, for tank emptying operations, CIP solution recirculation and for handling liquids with a high air content.

Close-coupled construction made entirely from stainless steel with standard motor, shaft

with compression locking, internal seal and open impeller based on CN series pumps.

 

TECHNICAL DATA

Flow rate up to 60 m3/h
Head values up to 70 mH2O
Maximum suction pressure 4 bar (PN 10)
Temperature range: -10°C to +120°C
Seals:

Hygienic mechanical seals with seat standardized
to EN 12756, ISO 3069 standards
Seal materials (FDA Regulation (EC) No. 1935/2004 ):
EPDM
Fluorocarbon
P.T.F.E. (Fep)

Connections:

DIN – SMS – IDF – BS / RJT – DS – CLAMP and
EN 1092-1 PN 16 flanges and, on request, available
in compliance with international standards.