... instrument Metal-metal diaphragm Different ports and connections upon request For single stage pressure regulator:YQJ/YQJF-1: Input/ output pressure:≤15mpa ... / 0-2.5mpa Flow rate:0.6m3/hNote:YQJ series for non- corrosive Gases such as H2,O2,N2,CO,CH4 ... ,HE,NE,AR and etc. YQJF series for corrosive Gases such as NH3,SO2,H2S,HCL,NO and ...