Jiangyin Yangfan Ship Trading Co.,Ltd is one of the best automatic reverse-flow prevention couplings manufacturers and suppliers in China, you can get automatic reverse-flow prevention couplings free sample and buy discount products from our factory.

These 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.