... 1 dayThis type of pressure regulator(oxygen regulator,gas regulator,flowmeter) has following features:1) Designed for Oxygen, acetylene, ... ) Calibrated for argon, helium and carbon dioxide gases5) Flowmeter is backpressure compensated to ensure accurate readings when linerestrictions are ... lb/in), bar, kg/cm2 (kgf/cm2)10) For flowmeter,polycarbonate flow tube and outer cover are impact resistant for ...