Auma 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. The WSH 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 IP 67 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.
