621-8921: Plunger Cushion

Description: Plunger cushions, such as part # 621-8921, have a trim that facilitates linear control over the entire operating range. The customized trims allow for characterized flow control for each unique application. Plunger valves are mainly used where volumetric flow rates need to be precisely apportioned or where water pressures must be accurately controlled or reduced. Plunger valves are the correct valve to use whenever pressure heads or flow rates need to be safely and reliably reduced and controlled. Attributes: • Steel plunger cushion • Outside Diameter: 18mm (0.71 in) • Length: 57mm (2.24 in) Application: Consult your owner’s manual or contact your local Cat Dealer for more information.