Designed especially for use as a primary relief device on smaller stationary storage containers, with 2” NPT threaded couplings. These manifolds allow servicing or replacement of either of the two relief valves without evacuating the container or loss of service. The operating lever selectively closes off the entrance port to the relief valve being removed while the remaining valve provides protection for the container and its contents. The rating of each manifold is based on actual flow through the manifold and a single pressure relief valve, taking friction loss into account. It is not merely the rating of the relief valve alone.


SKU Accessories Hydrostatic Relief Valve Accessories Vent Valve Inlet Connection (in.) Outlet Connection (in.) Product Name Integral Excess Flow Flow At 1 (PSIG) Cv Pressure Drop(GPM) Propane
A7550P SS8001J TSS3169 3/4” M. NPT 3/4” F. NPT Flange Seal Liquid Transfer Angle Valves for Bulk Storage Containers No 13.3 GPM
7550PX 3127U 3165 3/4” M. NPT 3/4” F. NPT Flange Seal Liquid Transfer Angle Valves for Bulk Storage Containers Yes -
7550P 3127U 3165 3/4” M. NPT 3/4” F. NPT Flange Seal Liquid Transfer Angle Valves for Bulk Storage Containers No 13.3 GPM