Fisher Pneumatic Actuators

DIFERENTIAL PRESURE SWITCH PROTECTION CLAS IP 54 REF MS1199VA00BK RANGE 0-10BAR DIFERENTIAL PRESURE SWITCH PROTECTION CLAS IP 54 REF. MS1108VA00BK0000 RANGE 0-16BAR POWER 24V

Fisher® 2052 spring-and-diaphragm rotary actuators are used on rotary-shaft valve bodies for throttling or on-off applications. The 2052 may be used for throttling service with a positioner, or it may be used for on-off service without a positioner. The 2052 has an ISO 5211 mating interface that allows installation to non-Fisher valves. Compact design, smaller actuators— Ensures reduced valve/actuator envelope dimensions leading to greater mounting versatility for both skids and smaller process plants, where space is at a premium. Compatible with DVC2000 and DVC6000 controllers and 3620 positioner— The new actuator allows linkage-less feedback, via a contact-less magnetic array, from the lever to the end-mounted DVC2000. The DVC6000 and 3620 are side-mounted, with feedback through the cam and feedback arm. Clamped lever to reduce lost motion— The clamping of the lever onto a splined valve shaft, coupled with the single pivot linkage, reduces lost motion between the actuator and the valve. The typical cumulative deadband for a Fisher rotary control valve assembly results in 0.5% or less variability. No bench set required— The new nested spring design requires no bench se

Fisher® 3025 Size P460-200, P462 and P900 spring opposed diaphragm actuators position the valve plug in the valve body in response to varying controller or valve positioner pneumatic output signals applied to the actuator diaphragm. They can be specified as either direct, e.g. air-to-close, or reverse acting e.g. air-to-open. These actuators are designed to provide dependable on-off or throttling operation of automatic control valves.  Long Travel Capability–Suitable for valves with valve plug travels of up to 200 mm (8 inches). Application Versatility–Yoke boss mountings, travel stops, and manual operators are available for nearly any control valve requiring longer valve plug travels. Positive Connections–Split block stem connection provides for a solid transfer of motion while allowing easy mounting, and it includes no linkages to create lost motion and inaccurate valve positioning. Reversible Construction–Actuator action can be easily changed on site without need of additional parts. Long Service Life–Rugged steel construction provides stability and corrosion protection

The Fisher® 3024C actuator is a compact spring opposed pneumatic diaphragm actuator incorporating a cast yoke mounting and is suitable for general purpose actuation of globe valves. It will position the valve plug in response to varying controller or valve positioner pneumatic output signals applied to the actuator diaphragm. The 3024C actuator can be assembled as either direct-acting or reverse-acting and provides dependable and on-off or throttling operation of automatic control valves. Application Versatility–With eight different configurations available, there is an actuator size to meet your needs. Multi-spring combinations allow for accurate selection of actuator thrust and valve travel. Reversible Action–The simple design allows the change of action from direct to reverse acting without the requirement for extra parts. Change of action can be easily made in the field. High Thrust Capability–The moulded diaphragm and high strength casings allow for a maximum casing pressure of 6 bar, enabling a high stem thrust for a given size diaphragm. Positive Connections–Split block stem connection provides a solid transfer of motion while allowing easy mounting and no linkag

The Fisher® 656 actuator is a bracket-mounted, direct-acting, diaphragm actuator for either throttling or on-off service. Principal applications include operation of butterfly valves and built-in turbine valves, louvers, dampers, and other similar equipment. Mounting Versatility—Four tapped holes in the actuator base permit either bracket or plate mounting. Long Actuator Travel—Deep casings provide up to 105 mm (4.125 inches) of maximum travel with a size 60 actuator. Application Versatility—Wide spring selection is available for nearly any control application. Spring selection procedures are quick and accurate. Severe Service Capability—Rugged yoke and casings provide stability and corrosion resistant protection.

Fisher® 657 and 667 spring-opposed 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. Zero setting of the actuator is determined by the compression of the actuator spring. Span is set by both the actuator spring rate and the number of springs available. The 657 actuator is direct-acting; the 667 is reverse-acting. These actuators are designed to provide dependable on-off or throttling operation of automatic control valves. Application Versatility—Five actuator types in eleven sizes are available for an extensive variety of applications. Spring rates, travel stops, and manual operators are available for nearly any control valve application. Excellent Linearity Between Loading Pressure and Travel—A molded diaphragm travels in a deep diaphragm casing, minimizing area change throughout the travel. High Degree of Dynamic Stability and Frequency Response—A shallow casing on the pressure side means reduced volume on that side, thereby minimizing response time. High Thrust Capability—The molded diaphragm allows maximum thrust for given diaphragm size. Long S