Features Material ->Oxyacetylene backwash valve is made of high-quality brass with fine workmanship, smooth and delicate appearance, durability and long service life. Advantages ->Easy to control, test, clean and maintain, corrosion resistant, brand new and high quality, reliable and safe quality. Function ->Built in check valve to prevent gas backflow, easy to install, won't take too long, easy to operate, easy to operate. Action principle ->dry type, small size, light weight, easy to carry, I believe it can bring convenience to your life. Equipment location ->centralized, stable performance, strong practicability, perfect replacement of old or bad, wide effect, obvious effect. Tips: Please pay attention to the thread specification before placing an order Properties:Material ->Oxyacetylene backwash valve is made of high quality brass with fine workmanship, smooth and delicate appearance, durability and long service life.Advantages ->Easy to control, test, clean and maintain, corrosion resistant, brand new and high quality, reliable and safe quality.Function ->Built-in check valve to prevent gas return, easy to install, does not take too long, easy to operate, easy to operate.Action principle ->dry type, small size, light weight, easy to carry, I believe it can bring convenience to your life.Equipment location ->centralized, stable performance, strong practicality, perfect replacement of old or bad, wide effect, obvious effect. Tips: Please refer to thread specification before placing an orderSpecification:Type: HF m2Size: M161,5Working medium: acetylene-oxygenWorking pressure: medium pressure (MPa)Nominal flow rate: 3 m3 per hWorking hole diameter: M14Dimensions: M161,5Principle of action: Dry typeDevice location: Centralization typeWeight: approx. 2600 gPackage list:1,Acetylene Flashback Arrestor1.Oxygen backstop Package List