Fisher 667 Diaphragm Actuator Size 34 0.2 to 1.0 bar (3 to 15 psig) Reverse-Acting
Buy Fisher 667 diaphragm actuator (Size 34, 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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The Fisher 667 is a reverse-acting, spring-opposed diaphragm actuator that positions a control valve plug in response to a varying pneumatic output signal. This Size 34 unit with a 0.2 to 1.0 bar (3 to 15 psig) spring range provides 29 mm of travel, a 445 cm2 effective diaphragm area, and up to 10231 N of maximum allowable thrust for dependable throttling or on-off control.
Key Features
- Temperature range -40 to 82 C standard, to 149 C with silicone diaphragm
- Maximum allowable thrust 10231 N
- Molded diaphragm, deep casing for excellent linearity
- Split-block stem connection for solid motion transfer
- Effective diaphragm area 445 cm2, 29 mm travel
- SIL3 capable, certified by exida
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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