Relief Valves

A relief valve is generally installed into the vapour space of a vessel. It is designed to protect the vessel from accidental over-pressure and from implosion due to unwanted vacuum conditions.

We manufacture a range of relief valves to suit a variety of requirements, from tell-tale and breather applications to catastrophic relief protection.

Depending on the application, relief valves can vary in connection size from DN20 (¾”) to DN125 (5”) and can provide pressure only or combined pressure and vacuum relief.

Standard connections are flanged or threaded and we have a selection of hygienic fittings. We can manufacture lined and coated relief valves for corrosive cargoes, and we supply a wide range of ancillaries such as flanges, flame arresters, cowls, burst discs and manometers.