supply of flash back arrestor , flash back arrestor (dry type) for torch end of oxygen lines to prevent flash backs in oxy fu el system conforming to en 730/iso 5175-1/is:11006 standards with flame arrestor (fa) and non return v alve (nrv) working pressure: 15 bar. end connections g 3/8 rh to en 560/iso 3253 standards. make mes ser(cg-91 oxy) or esab (fr-18) or gce (fr-20t oxy) or witt (oxygen e460-3).sample to be approved be fore bulk supply. [ warranty period: 30 months after the date of delivery ] ] , 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 flam e arrestor(fa) and non return valve(nrv) working pressure: 1.5 bar for acetylene/5.0 bar f or lpg. end connections g 3/8 make messer (cg-91) or esab (fr-18) or gec (fr-20 t fuel) or weldstar or witt. sample to be approved before bulk supply. [ warranty period: 30 months after the date of deliv ery ] ] , set of flash back arrestor (dry type) for gas regulator ends. each set consist of 02 nos. flash back arrestors (i) 1 no. flash back arrestor for regulator end of oxygen gas lines (ii) 1 no. flash back arres tor for regulator end of acetylene/lpg gas lines. details specification mentioned in attached annexure-a s ample to be approved before bulk supply. [ warranty period: 30 months after the date of delivery ] ]