... 1, Brass 2, Metal-metal diaphragm 3, For precise analyzer O2 pressure regulator TypeInput pressureOutput pressureFlow rateYQ/YQF-115Mpa0.45Mpa0.6m3 ... .8m3/hYQ series for non- corrosive Gases such as H2,O2,N2,CO,CH4,HE,NE,AR and etcYQF series for ...