Shut-off and non-return valves

Screw down non return valve perform two functions in installations - stop valves and non-return valves. They can be used with a medium such as water, steam and other neutral liquid and gaseous substances, as well as petroleum fuels and sea water. They are designed to protect pipelines against the return flow of the working medium. Stop and check valves can also be used to open and interrupt the flow of the working medium.