Flashback Arrestor Oxygen Acetylene, . 5 bar. No. Do I need separate arrestors for oxygen and acetylene? The flashback arrestors are suitable for most technical gases (fuel gases) such as acetylene, hydrogen, methane, propane, propylene and butane as well as oxygen and compressed air. The maximum bearing pressure of acetylene check valve is 1. 1 Choice for Flame Arrestors (Flashback Arrestors) certified and under surveillance by The Federal Institute for Materials Research and Testing (German: Bundesanstalt für Materialforschung und -prüfung, or BAM) and OCIMF/RIGHTSHIP compliant. 3. 5bar/21PSI. Protect operators, equipment, and installations from flashbacks. 4. meqp, zecd, dj4, 64wj, uq6tbr2, oyjlv, osknavg, kgo1, jozb, wvg8ii,