Double Action Pumps

 

RAASM offers a variety of pumps within its range which are capable of double-action pumping.

There are many solutions for obtaining a reciprocating double-acting pump. The double-action of RAASM pumps are obtained by simplifying the pump mechanism itself, providing delivery of fluid during both the up-stroke and down-stroke.

In addition to guaranteeing regular fluid delivery, this solution offers the further advantage of having fewer parts inside the pump. This means less wear plus greater and longer reliability.

On the up-stroke, delivery is caused by the pumping piston A

On the down-stroke it is caused by the difference in volume between the diameter of the motor shaft  B and the diameter of the pumping piston A

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