A pressure and vacuum relief valve is used for venting a plant section and protect it from impermissible pressure loads.
Flame arrester Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. The diaphragm Diaphragm A diaphragm is a thin layer of material, which has a large surface area. valve version uses a diaphragm as a closing element, which is pressed onto the valve seats. The diaphragm can be loaded with weights or liquid in order to set a set pressure Set pressure Set pressure is the gauge pressure at the device inlet at which the relief device is set to start opening under service conditions. .