Fisher r 6560 pages

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656 Actuator

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D100086X012

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Product Bulletin

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61.1:656

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February 2013

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Fisher® 656 Diaphragm

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The Fisher 656 actuator is a bracket-mounted,

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direct-acting, diaphragm actuator for either throttling

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or on-off service. Principal applications include

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operation of butterfly valves and built-in turbine

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valves, louvers, dampers, and other similar equipment.

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Features

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■ Mounting Versatility—Four tapped holes in the

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actuator base permit either bracket or plate

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mounting.

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■ Long Actuator Travel—Deep casings provide up to

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105 mm (4.125 inches) of maximum travel with a

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size 60 actuator.

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■ Application Versatility—Wide spring selection is

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available for nearly any control application. Spring

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selection procedures are quick and accurate.

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■ Severe Service Capability—Rugged yoke and casings

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provide stability and corrosion resistant protection.

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Installation

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The actuator may be installed in any position.

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Dimensions are shown in figure 1.

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Actuator

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TYPICAL CONSTRUCTION

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Fisher 656 Actuator

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FISHER

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www.Fisher.com

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EMERSON

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Process Management

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