... , Brass. 3, Metal-metal diaphragm. 4, Control deliery pressure smooth N2 pressure regulator TypeInput pressureOutput pressureFlow rateYQJ/YQJF-115Mpa0.45Mpa0.6m3 ... /hYQJ series for non- corrosive Gases such as H2,O2,N2,CO,CH4,HE,NE,AR and etcYQJF series for corrosive ...