The TVL-AS2GNPM is a TopWorx valve position switchbox with a tropicalised aluminium base and lid. It is rated non-incendive.
Position sensing is by two SPDT GO Switches with AS-Interface communication. The switchbox has a standard 90° visual indicator showing green for open and red for closed, a NAMUR 316 stainless steel shaft, two ½" NPT conduit entries and silicone O-rings.