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Fisher actuator 657 manual

Scope of Manual This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the Fisher 657 actuator in sizes 30 through 70 and size 87. The 6574 actuator in sizes 70 and 87 is also covered. Scope of Manual This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the Fisher 657 actuator in sizes 80 and 100.

Refer to separate instruction manuals for information about other equipment and accessories used with these actuators. This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the Fisher 657 actuator in sizes 30 through 70 and size 87.

The 6574 actuator in sizes 70 and 87 is also covered. Product Bulletin Fisher 657 and 667 Diaphragm Actuators Fisher 657 and 667 springopposed diaphragm actuators position the valve plug in the valve in response to varying controller or Fisher actuator 657 manual positioner pneumatic output signals applied to the actuator diaphragm. Type 667 Diaphragm Actuator Sizes 3076 and 87 Fisher does not assume responsibility for the selection, use, or maintenance of any product.

Responsibility for auxiliary manual actuator. The sidemounted handwheel can also be used as an adjustable up or down travel stop. CasingMounted adjustable up or Fisher 657 and 667 actuators are designed to provide dependable onoff or throttling operation of control valves. These springopposed diaphragm actuators position the valve plug in the valve in response to varying controller or Below you will find previews of the content of the user manuals presented on the following pages to Emerson Process Management FISHER 657.

If you want to quickly view the content of pages found on the following pages of the manual Instruction Manual D X012 657 Actuator (3070 and 87) December 2010 3 Note If repeated or daily manual operation is expected, the actuator should be equipped with a sidemounted handwheel rather than a Instruction Manual D X012 657 Actuator (3030i7070i and 87) June 2018 3 Figure 2. Schematic of Fisher 657 and 6574 Actuators SPRING LIFTS Fisher 657 actuator Please email or phone your repair parts requirements for a quick quotation to: or (P) The 657 actuator is a directacting, springopposed diaphragm actuator.

Fisher 657 Size 30i 70i Diaphragm Actuators Fisher 657, size 30i to 70i, springopposed diaphragm actuators position the valve plug in the handwheels on the 657 Series actuators. For repeated or daily manual operation, the unit should be equipped with a sidemounted handwheel. 657 Actuator (3070 and 87) Instruction Manual Form 1900 March 2004 5 valve because the disk will not go through the actuator yoke opening). 4. Do not connect the actuator stem to the valve stem at this time. Fisher 657 and 667 Fisher 667 springopposed diaphragm actuators position the valve plug in the valve in response to varying controller or valve positioner pneumatic output signals applied to the actuator diaphragm.