Fisher 657 Diaphragm Actuator Size 50 0.4 to 2.0 bar (6 to 30 psig)
Fisher 657 direct-acting spring-opposed diaphragm actuator, Size 50, 0.4 to 2.0 bar (6 to 30 psig) spring range, 51 mm travel, 677 cm2 effective diaphragm area. factory-direct price with wholesale bulk pricing and fast global shipping.
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- 100% Genuine & Brand New
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- Fast Quotation within 12 Hours
- 1-Year Warranty Guaranteed
The Fisher 657 is a direct-acting, spring-opposed diaphragm actuator that positions a control valve plug in response to a varying pneumatic output signal. This Size 50 unit with a 0.4 to 2.0 bar (6 to 30 psig) spring range provides 51 mm of travel, a 677 cm2 effective diaphragm area, and up to 25131 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
- Top- and side-mounted handwheels available
- SIL3 capable, certified by exida
- Effective diaphragm area 677 cm2, 51 mm travel
- Direct-acting, spring-opposed design for fail-safe positioning
- Maximum allowable thrust 25131 N
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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