DIAPHRAGM ACTUATOR (SINGLE ROTARY TYPE)

PNEUMATIC DIAPHRAGM ROTARY ACTUATOR
SINGLE ACTING TYPE

The “DB” rotary stem motion type diaphragm actuator, with single-spring design, offers dependable, high thrust performance in a compact, lightweight package. It obtains a required rotary output by converting a linear output into a rotation force through the scotch yoke construction. The linear output is created by balancing two forces.

The type “DB” is a yokeless, direct-acting diaphragm actuator for either throttling or on-off service. Principle applications include operation of butterfly and segmental ball valves, damper, and other similar equipment.

CYLINDER ROTARY ACTUATOR (HIGH-TORQUE)

CYLINDER ROTARY ACTUATORHIGH TORQUE
SCOTCH-YOKE TYPE

The double acting and Spring return Cylinder actuators are powerful, highperformance pneumatic actuators that provide positive modulation or on-off operation for rotary stem motion type control valves and many other quarter-turn (90°) rotating

  • · The PROVAL pneumatic actuator series was engineered and produced
    to provide maximum torque output with minimum supply pressure.
  • · Simplicity, reliability and economy being at the top of the list of
    design parameters.
  • · The PROVAL actuator is suitable for any quarter turn application
    such as ball, plug, butterfly valves or dampers, in both On-Off and Modulating
    heavy duty service.
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