CA Series:

First time, once the pump is filled with liquid, the pump starts. The impeller circulates the liquid inside the pump causing an air-liquid mixture pumping-compression. The mixture is separated on the diffuser upper part, escaping the gas thorough the discharge pipe, returning the liquid to the diffuser lower part and creating a vacuum on the suction area. This vacuum draws the air from the suction pipe and mixes it with the pump liquid.

Once all the air has been evacuated, the pump gets filled with liquid, operating as a normal centrifugal pump. Furthermore, due to its cared design, when it is stopped, the pump emptying is avoided, remaining enough liquid on pump casing for next start up.

If for any reason an air entrance is produced during operation, the pump gets unprimed and the before mentioned priming cycle is repeated. On the other hand, during the pump priming, ensure all discharge valves are open , in order to allow air exit.

Applications:

• Marine - Ballast, bilge, fire fighting, engine cooling, general services.

• Industrial -  Transfer, circulation, low pressure feeding of all kind of liquids.

• Domestic -  Draining of garages, channels, swimming pools & ponds, irrigating water supply, grey and dirty waters pumping.

Generalities:

The advantages of the CA series centrifugal self priming pumps are:

• Self priming: They do not require and suction foot valve.

• Back Pull-out Design: Disassembly without pipe removal.

• Heavy Radial Ball Bearing: Lubricated by grease.

• Double Rotation Sense Possibility: Assembling interchangeable diffuser and impeller. Types CA50/3 & CA50/7 available in both rotation senses. Rest available under requirement.

• Easy Pump Renewal: By means of impeller and diffuser replacement.

Driving & Execution:

The CA series pumps can be supplied in bare shaft execution, mounted in bare shaft execution, mounted in common base plate with pump-motor flexible coupling, in monobloc execution, with petrol or diesel engine, electric motor, hydraulic, pneumatic or driven by clutch and pulley or electromagnetic clutch.

Copyright © 2008 Castle Pumps Ltd.