These Automatic Reverse Flow Prevention couplings are fitted to the outlet pipe, connecting hose, and the welding/cutting machine and outfit, removing possible risks accompanying the gas welding/cutting operation and making preparation and maintenance of the welding/cutting machines easy.  Further, each type is specially designed for oxygen or fuel gas so as to prevent mistakes.  A spring-loaded locking method is used, fitting or removal is a single action, which minimizes hose damage and makes maintenance easy.

这些防逆流氧气乙炔焊接接头安装在出口管、连接软管、焊接/切割机和设备上，消除了气焊/切割操作可能带来的风险，并使焊接/切割机的准备和维护变得容易。此外，每种类型都是专门为氧气或燃气设计的，以防止出现错误。采用弹簧加载锁紧方法，安装或拆卸只需一次操作，可最大限度地减少软管损坏，并便于维护。