Pneumatic valve actuator 585C

linearcylinderpiston

Fisher 585C piston actuators provide low to medium thrust output for a variety of small to medium Fisher sliding-stem valves, including the easy-e™, HP, EH, and 461 valves. The double-acting design of the actuator results in stiff, precise positioning. Smaller sizes of this actuator are also available with optional bias springs for a spring return fail mode. Key Features Maximum thrusts of up to 111 kN (25,000 lbf) can be produced, depending on construction. Depending on size, strokes of up to 203 mm (8 in) are available. Universal NAMUR mounting provides a consistent mounting method and also provides vibration resistance per ISA-S75.13. The double-acting construction allows stiff, precise positioning. 585C size 25 and 50 actuators are available with a top-mounted handwheel. All other 585C actuator sizes can accommodate a side-mounted handwheel. Actuator sizes 25 and 50 are available with bias springs. A bias spring under the piston fully retracts the actuator stem upon loss of supply air, while a bias spring on top of the piston fully extends the actuator stem. Low friction piston seals and cylinder coatings reduce sliding friction and wear. Specifications Actuation Double-acting, Spring-return, Linear Certifications PED, CUTR, ATEX Control Type On/Off, Throttling, Positioning Operating Temperature Standard Temperature Power Source Pneumatic