KSB Dynacto Single-Acting Hydraulic Actuator

The KSB DYNACTO is a Single-acting Hydraulic Actuator that can be mounted on quarter-turn valves (Butterfly Valves or Ball Valves). The top flange is to ISO 5211. The DYNACTO has a control pressure up to 120 bar.

The KSB DYNACTO can be mounted on various types of valve stem 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 4000 Nm which are ideal for actuating quarter-turn valves.

The DYNACTO has a reset to fail-safe position, which is effected by means of spring assemblies if the control fluid is interrupted. The KSB DYNACTO is equipped with a visual position indicator and adjustable travel stops for open/closed position as standard.