Description
Fisher 656 Direct-Acting Diaphragm Actuator is a pneumatic actuator designed for linear valve automation in process control. Commonly selected for applications requiring spring-return action and reliable performance under standard temperature operating conditions (configuration-dependent).
Why Buy From Us
•✅ Genuine supply (configuration verified by nameplate)
•💰 Best-value pricing (projects & single-unit orders)
•⚡ Fast quote (send a nameplate photo)
•🧾 PED / CUTR / ATEX options (by configuration)
Valve Compatibility
Commonly applied to:
•Globe valves
•Angle valves

Fisher 656 Direct-Acting Diaphragm Actuator
Specifications
| Specifications | Details |
|---|---|
| Actuation | Spring-return, Linear |
| Certifications | PED, CUTR, ATEX |
| 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 |
| Fail Action | TBD / confirm by nameplate |
| Actuator Size / Range | TBD / confirm by nameplate |
| Travel / Stroke | TBD / confirm by nameplate |
| Bench Set / Spring Range | TBD / confirm by nameplate |
| Air Supply Pressure | TBD / confirm by nameplate |
| Mounting / Yoke Interface | TBD / confirm by nameplate |
| Materials / Diaphragm Type | TBD / confirm by nameplate |
| Accessories (Positioner / I/P / Solenoid / Limit Switch) | TBD / confirm by nameplate |
Quotation Requirements
•📸 Nameplate photo (recommended)
•Valve type/model + required travel/stroke
•Control requirement: On/Off, throttling, or positioning
•Available air supply pressure
•Certification requirement: PED / CUTR / ATEX
•Quantity + destination + required date
FAQ
Is Fisher 656 spring-return? Yes—this listing is spring-return (verify by nameplate).
Does it support positioning? Yes—supports On/Off, throttling, and positioning (configuration-dependent).
How to confirm the correct actuator size? Send a nameplate photo for fast matching.
Project & Maintenance Supply Support
For projects, MRO, and plant spares, we support nameplate-based configuration matching, certification alignment (PED / CUTR / ATEX), and project/quantity pricing. Share your required date, destination, and quantity to confirm the most suitable supply plan (TBD / confirm by nameplate).

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