... ,explosion proof,flexible pipe. anti-explosion Flexible Copper Connecting Pipe (BNG)Application1.Can be used in Zone 1 ... 4",another terminal is outer thread G1",rubber sleeve flexible connecting pipe.Suitable for GB3836-2000,IEC60079 standard request.Main ... technical parametersTypeInward diameter (mm)Connecting thread(G")Length (mm)Min bend radius(mm)Ex- ...