Custom ­designed rotary actuators

February 2014 Valves, Actuators & Pump Control

Pneumatic rotary actuators can be utilised in many industrial, R&D, laboratory, production and quality inspection applications. PSV Mitech’s devices are custom designed and require little maintenance. They are available with either a double crank mechanism for modulating control or a scotch yoke mechanism for on/off duty. The actuators are field reversible from clockwise-to-close to clockwise-to-open. With their pneumatic piston design, they are offered in various sizes and can be engineered and fitted to most valves up to a 250 000 Nm torque.

These pneumatic rotary actuators handle small to medium size payloads with rotation up to 90° and can be mounted and operated in any direction. By utilising a square drive, the actuators can be mounted perpendicular to or in line with the pipe work and the adjustable end stops can be externally adjusted in both the open and closed positions. The single spring design, pre-stressed in a detachable pack, make the actuator easy to assemble and disassemble. Pressure seals are all simple ‘O’ rings to reduce maintenance requirements.

For more information contact Greg Walker, PSV Mitech, +27 (0)11 657 6000, [email protected], www.mitech.co.za

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