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Fisher 785C Piston Actuator
The 785C is a piston actuator that provides accurate, high thrust output for a wide range of travel applications. This actuator can be single- or double-acting and spring-return or springless with a selection of spring-fail options available. The 785C family is designed for use with a variety of Fisher sliding-stem control valves. It is available in several configurations to cover a wide range of application requirements.
Features
Double-Acting Springless Construction — Pressure on both sides of the piston results in stiff, precise positioning.
Single-Acting Spring Return — Allows for full ANSI/FCI 70-2 CL V shutoff upon loss of air without use of a volume tank.
Low Friction — Low friction piston seals and electroless nickel plated cylinders reduce sliding friction and wear.
Mechanical Fail Mode — Depending on construction, an internal bias spring will force the piston rod to retract or extend upon a loss of supply pressure.
Specifications
Control Type
On/Off, Throttling, Positioning
Operating Temperature
Standard Temperature
Power Source
Pneumatic
Process Control
On/Off, Throttling, Positioning
Valve Type
Angle Valve, Globe Valve
Pictures show
Application area
矿业
医药
水处理
能源
化工
矿业
医药
水处理
能源
化工
