Fisher 667 Reverse-Acting Pneumatic Actuator Size 50 0.2 to 1.0 bar (3 to 15 psig)
Buy Fisher 667 diaphragm actuator (Size 50, 0.2 to 1.0 bar (3 to 15 psig)). Fail-closed/fail-open pneumatic positioning for control valves. In stock, brand new, factory-direct price, ships within 48 hours.
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Engineered for reliable control-valve positioning, the Fisher 667 (Size 50, 0.2 to 1.0 bar (3 to 15 psig)) applies air pressure to the lower diaphragm casing to drive the stem upward against the spring. It provides fail-closed action on push-down-to-close valves and fail-open action on push-down-to-open valves, with 51 mm travel and 677 cm2 diaphragm area.
Key Features
- Reverse-acting, spring-opposed design for fail-safe positioning
- Maximum allowable thrust 25131 N
- SIL3 capable, certified by exida
- Molded diaphragm, deep casing for excellent linearity
- Temperature range -40 to 82 C standard, to 149 C with silicone diaphragm
- Top- and side-mounted handwheels available
Genuine Parts, Fast Delivery, Full Support
Every 667 actuator is factory-certified, 100% genuine, and covered by a 1-year warranty with after-sales technical support. Ready stock ships within 48 hours worldwide. Bulk pricing available — contact us for a quote within 12 hours.
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Email: sales@gt-exim.com | WhatsApp: +86 17719526488
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