Features 1、1. High quality Acetylene/Oxygen Check Valve. 2、2. Built-in check valve prevents the reverse flow of gas. 3、3. Meet the requirements of welding process, no influence on the flame temperature, gas flow, etc. 4、4. Solid brass construction, rugged and corrosion resistant. 5、5. The connection is standard RH(right hand) threads for Oxygen, and standard LH(left hand) threads for Acetylene. Specification Features: 1. High quality Acetylene/Oxygen Check Valve. 2. Built-in check valve prevents the reverse flow of gas. 3. Meet the requirements of welding process, no influence on the flame temperature, gas flow, etc. 4. Solid brass construction, rugged and corrosion resistant. 5. The connection is standard RH(right hand) threads for Oxygen, and standard LH(left hand) threads for Acetylene. Specification: Working pressure: Medium pressure (MPa) Rated flow: 15m3/h Working hole diameter: M14 Dimensions: M16*1.5 Weight: 74g (approx.) Package List: 1 x Flashback Arrestor Package List