Vapor Discharge Valve

This 3.5" actuated vapor valve, also called a Sequential Vapor Recovery Vent, is a positive vapor recover valve used on DOT cargo trailers.  Installed using the threaded mounting ring directly into the 16" offset manhole, the valve can operate in sequence with other pneumatically controlled devices such as an emergency valve, or can open independently by plugging the outlet port. The body is constructed of lightweight aluminum and trim is stainless steel for compatibility with a wide range of products.