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KSB Dynactair Single-Acting Pneumatic Actuator

The KSB DYNACTAIR is a single-acting pneumatic actuator that is mounted on quarter-turn valves (butterfly valves or ball valves). The top flange is to ISO 5211. The DYNACTAIR has a control pressure up to 8 bar. The actuator can be mounted in various types of valve stern ends (square end, flat end or key). Force transmission is done via rack-and-pinion, and the scotch-yoke or patented Amri yoke kinematics provides output torques of up to 8000 Nm which are ideal for actuating quarter-turn valves. The KSB DYNACTAIR has a reset to fail-safe positionm which is effected by means of spring assemblies if control air supply is interrupted. The DYNACTAIR is equipped with a visual position indicator and adjustable travel stops for open/closed position as standard. Manual override can be provided on request (up to    DYNACTAIR 100). For automated valve actuation, DYNACTAIR can be combined with AMTROBOX, AMTRONIC, SMARTRONIC or any other control unit with VDI/VDE 3845 interface.

KSB Dynactair single-acting pneumatic actuator

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