PISTON THRUST BALANCER
Definition
A <PISTON THRUST BALANCER> is a <THRUST BALANCE ASSEMBLY> utilising a piston (drum) keyed or screwed to the shaft rotating within a stationary cylinder fixed to the pump casing and separating the balancing chamber from the pump interior. The resultant of the forces acting on the balancing piston by the discharge pressure on the inside and discharge pressure on the outside tend to counteract the thrust on the shaft caused by the impellers