A breather valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system.
A breather valve Válvula de vácuo e de alívio de pressão 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 storage tanks and equipment and enables the equalization of overpressure Sobrepressão 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 Bocas de conexão 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.
