Auma Introduces Ex-Rated Limit Switching Device

Auma Actuators has introduced an explosion-proof variant for its limit switching device for manual valves. The Ex-rated version has been introduced to support installations in hazardous applications, such as the petrochemical industries. The WSH unit generates a position feedback signal for manually operated valves, which ensures that operational status can be remotely displayed.

It can be mounted directly on a valve, such as a gate valve, or in combination with a valve gearbox. As standard the WSH is equipped with a mechanical position indicator, which can be used to view the valve position and to provide a running indication. The WSH provides enclosure protection to IP67 with an option for IP68. Corrosion protection KN is featured as standard, with KS/KX as an option. A low-temperature version is also available.

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