Weather Fire breathing valve

QZF-89 all-weather Fire breathing valve performance and features:? All-weather Fire breathing ventilation valve is installed in a fixed roof tank, from reducing evaporation loss of oil control tank pressure and prevent incoming external flame effect. ? The valve has a ventilation volume, small amount of leakage, corrosion resistance and other characteristics, and a static ground wire, so that the valve and the tank to keep such potential. ? The valve has antifreeze properties, suitable for cold regions. First, the weather Fire breathing valve performance and features: QZF-89 all-weather Fire breathing ventilation valve is installed in a fixed roof tank, from reducing evaporation loss of oil control tank pressure and prevent the outside flame Afferents . The valve has a ventilation volume, small amount of leakage, corrosion resistance and other characteristics, and a static ground wire, so that the valve and the tank to keep such potential. The valve has antifreeze properties, suitable for cold regions.