Soupape de surpression et dépression

A pressure or vacuum relief valve Soupape de surpression et dépression A pressure and vacuum relief valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system. is installed in vent lines of vessels and equipment and enables the equalization of overpressure Surpression Overpressure refers to an increase in pressure in a system or vessel above the normal operating pressure. or underpressure. The function depends on which connection socket Manchon de raccordement A connection socket is the component which is used to connect the equipment to other components or lines. of the valve is connected to the tank. When connected to a bleed line, the valve compensates for overpressure; when connected to a vent line, it compensates for underpressure.