Avoiding welding sparks during oxygen acetylene welding. It is easy to generate a large amount of sparks during the welding process. Therefore during welding work it is necessary to install a flashback preventer to avoid danger. Installed below the welding area flashback arrestors can ensure the quality of the welding bottom seam and improve the welding quality. First check whether the flashback arrestor works normally and then adjust the flow and temperature of oxygen and acetylene to make them reach the combustible state. It is necessary to monitor the bearable temperature and pressure in real time. The built-in check valve can prevent gas backflow. The brass structure is sturdy durable and corrosion resistant. Easy to control inspect clean and maintain. The flashback preventer must be checked for normal operation to ensure welding quality and safety. It is necessary to regularly clean and maintain to ensure its normal operation. Type HF-2. Size M16x1.5. Working medium Acetylene Oxygen. Working pressure Medium pressure MPa. Rated flow 3 m3/h. Working hole diameter M14. Action principle Dry type. Device location Centralization type. Weight 2600g 91.7oz. Package list includes one Acetylene Flashback Arrestor and one Oxygen Flashback Arrestor. Condition New. Origin China.