The Hydraulic Unibody (HUB) Series rotary actuator from Parker Hannifin Corp. (Cleveland, OH) is built with a hard-coat anodized housing and hardened alloy steel pinion and racks for applications exposed to harsh weather extremes. The rack-and-pinion gear design minimizes hydraulic power unit (HPU) size. The one-piece housing eliminates leak paths and external connections, and the design allows for mounting directly on numerous process valves. Several add-on valve modules are available. A crossover vent module allows for flow between both cylinder ports, permitting free rotation of the process valve. A D03 Solenoid-ready module provides a manifold block directly mounted to the actuator.

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Motion Control & Automation Technology Magazine

This article first appeared in the April, 2016 issue of Motion Control & Automation Technology Magazine.

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