The Fisher® 585C linear piston actuator is a powerful, double-acting actuator that provides accurate throttling or on-off operation for sliding-stem control valves.

The 585C piston actuator family is available in sizes 25 to 130 to cover a wide range of thrust and travel length requirements. It can be used with switching valves for on-off control, or with the DVC6000 Series digital valve controller or 3600 Series positioner for throttling applications.

The 585C has a wide range of supply pressure capabilities, up to 150 psig. As the 585C is double-acting, the positioner supplies air to both sides of the piston, resulting in stiff, precise movement and control.

The 585C piston actuator is also available in a long stroke version with travel capabilities up through 610 mm (24 inches).