1, pneumatic valve 2, Served for non corrosive /corrosive gases. 3, Brass/SS316L. 4, Metal-metal diaphragm. pneumatic valve TypeInput pressureOutput pressureFlow rateYQJ/YQJF ... .2Mpa0.6m3/hYQJ/YQJF-715Mpa1.5Mpa0.8m3/hYQJ series for non- corrosive Gases such as H2,O2,N2,CO,CH4,HE ...