Shut-off valves, also known as on/off valves, are devices used to intercept industrial process fluids. They are made of a variety of materials, depending on the conditions of pressure, temperature and compatibility with the fluids being conveyed. The most commonly used materials for the valve bodies are grey iron and ductile iron (GJL 250 and GJS 500), carbon steel (WCB) and stainless steel (CF8M).
The valves have been devised and designed so as to optimise the maximum flow rate and the Kv, and reduce the load losses as much as possible. Globe valves are made with 2 or 3 ports, with square body, angle seat and conveyed flow. They are installed in standard process industries, for example in the dyeing industry, the textile industry, in the chemical industry, in thermoregulation processes and in food and pharmaceutical applications.