supply of flash back arrestorflash back arrestor,flash back arrestor(dry type) for regulator end of lpg lines to prevent flash backs conforming to en 730/iso 5175-1/is 11006 standards with flame arrestor(fa) and non r eturn valve(nrv) and thermal cut off valve(tv) working pressure: 1.5 bar for acetylene/5.0 bar for lpg. end connections g 3/8 lh to en 560/iso 3253 standards. make: esab(model-frt)/ a dor welding (model-king protector-r)/messer or similar. accepted make/brand - tekno bran d ] , flash back arrestor(dry type) for regulator end of oxygen lines to prevent fl ash backs in oxy fuel system conforming to en 730/iso 5175-1/is 11006 standards with flame a rrestor(fa) and non return valve(nrv) and thermal cut off valve(tv) working pressure: 15 bar. end connections g 3/8 rh to en 560/iso 3253 standards. make: esab(model-frt)/ ador wel ding (model-king protector-r)/ messer or similar accepted make/brand - tekno brand ]