(1)Safety Valve

An automatic pressure relief device driven by the static pressure of the medium in front of the valve. It is characterized by a sudden full opening action. Used in gas or steam applications.

(2) Relief Valve

Also known as overflow valve, an automatic pressure relief device driven by the static pressure of the medium in front of the valve. It opens proportionally as the pressure exceeds the opening force. Mainly used in fluid applications.

(3) Safety Relief Valve

Also known as a safety relief valve, an automatic pressure relief device driven by medium pressure. It can be used as both a safety valve and a relief valve according to different applications. Take Japan as an example. There are relatively few clear definitions for safety valves and relief valves. Generally, safety devices used for large energy storage pressure vessels such as boilers are called safety valves, which are installed on pipelines or other facilities. It is a relief valve.

?