Air Compressor Safety Relief Valve | 1 to 16 Bar | 1/4" to 3/4" BSP Male

This brass air compressor safety relief valve is a pop-off valve with a BSP male thread, offered in 1/4", 3/8", 1/2" and 3/4" sizes and in pressure ratings from 1 bar (14PSI) up to 16 bar. Fitted to an air receiver or compressor, it opens when pressure reaches its rating and vents the excess air, so the tank is not left to rise past the limit you choose. Features and benefits: - Brass body with a hexagonal flange nut on the threaded end - the hex gives a spanner flat for fitting and removal - Four BSP male thread sizes, 1/4", 3/8", 1/2" and 3/4" - match the port on your tank, manifold or fitting - Ten pressure options, 1, 2, 3, 4, 5, 6, 7, 8, 10 and 16 bar - pick the rating that suits your system - Spring pin protruding from one end, secured with a lead seal and wire - lets you see whether the setting has been disturbed - Small side outlet hole - the released air vents sideways rather than straight out of the end - Side pin fitted with a wire seal Applications: - Pop-off protection on air compressor receivers and tanks - Pressure relief on workshop air lines and manifolds - Replacing a worn or missing relief valve on a compressor - Pressure relief on small air systems that need a set venting point Note: Choose a rating that matches the working pressure of the tank or system it protects, and never fit a valve rated above what the equipment can safely take. Do not block or cap the outlet, and do not alter the setting. If the valve vents at normal working pressure, stop using the compressor and have the system checked. Not every thread size is stocked at every pressure, so check the option list.