Hose safety valve, contains valve body with friction increasing surface structure

摘要

The valve body side of the flow path for the liquid from the inlet (3) to the outlet (4) is provided with a friction-increasing surface structure, so that the friction of the flowing liquid and/or gas acting upon the valve body is initially greater than the force generated by the pressure drop between the inlet and outlet in the event of a conduit connected to the outlet breaking. An Independent claim is also included for a method for operating this valve.