Manual Relief valves are designed for use in small containers or cases, where automatic valves are not required. They provide various methods of manually equalising pressure or vacuum differentials before opening the containers. Each type is easily installed through a single hole in the wall of the case and comes complete with all attaching hardware. Some have safety wire protection features to prevent unauthorised opening of the valves. Recommended torque value for installation of all manual relief valves is 30 lbs/ins.
