Fisher 657 Direct-Acting Pneumatic Actuator Size 45 0.2 to 1.0 bar (3 to 15 psig)
Fisher 657 direct-acting spring-opposed diaphragm actuator, Size 45, 0.2 to 1.0 bar (3 to 15 psig) spring range, 51 mm travel, 677 cm2 effective diaphragm area. ready stock, 48-hour shipping with wholesale bulk pricing and fast global shipping.
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- 100% Genuine & Brand New
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- 1-Year Warranty Guaranteed
Engineered for reliable control-valve positioning, the Fisher 657 (Size 45, 0.2 to 1.0 bar (3 to 15 psig)) applies air pressure to the upper diaphragm casing to drive the stem downward against the spring. It provides fail-open action on push-down-to-close valves and fail-closed action on push-down-to-open valves, with 51 mm travel and 677 cm2 diaphragm area.
Key Features
- SIL3 capable, certified by exida
- Top- and side-mounted handwheels available
- Effective diaphragm area 677 cm2, 51 mm travel
- Temperature range -40 to 82 C standard, to 149 C with silicone diaphragm
- Maximum allowable thrust 25132 N
- Rugged thick-walled cast iron and steel construction
Wholesale Pricing, Genuine & In Stock
Bulk and OEM pricing on Fisher 657 diaphragm actuators, all 100% original and brand new. Ready stock, 48-hour dispatch, and a full 1-year warranty. We quote volume orders within 12 hours.
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Email: sales@gt-exim.com | WhatsApp: +86 17719526488
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