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Fisher™ 585C Piston Actuator

  • Manufacturer: FISHER
  • Valve Type: Fisher Control Valves - Control valves are valves used in pipelines to control operating conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to a process signal. Fisher®, BaumannT, and POSI-SEALT
  • Sub-Type: Fisher Actuators
  • 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.
  • Low friction piston seals and cylinder coatings reduce sliding friction and wear.


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.


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Control Valve Fisher

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