The anti-tamper valve head unit is equipped with an AT-Key, which fits exactly in the key guide. The valve can therefore only be operated with the AT-Key. In addition to this safety function, installing a padlock prevents the AT-Key being inserted into the key guide. Operating the valve is therefore no longer possible, protecting equipment against unauthorised opening and closing of the valve head units. The valve can be locked reliably in every position required.
The valves can also be equipped with a Stainless Steel Handwheel and an additional fitted locking plate. This design allows minimum handle movements and is ideal as protection against unauthorised closing of the valve.
Read the article online at: https://www.hydrocarbonengineering.com/product-news/08082018/as-schneider-anti-tamper-valve-head-units-protect-valves-against-unauthorised-access/