Flash Back Arrestor ( Dry Type ) for torch end of Acetylene/ LPG Lines to prevent Flash Backs in Oxy Fuel system conforming to EN 730/ ISO 5175- 1/ IS 11006 Standards with Flame Arrestor ( FA ) and Non Return Valve ( NRV ) Working Pressure: 1. 5 bar for Acetylene/ 5. 0 bar for LPG. End Connections G 3/ 8