supply of flash back arrestor (dry type) , flash back arrestor (dry type) for regulator end of oxygen lines to prevent flash backs in ox y fuel system conforming to en 730 / iso 5175-1 / is 11006 standards with flame arrestor (fa) and non ret urn valve (nrv) and thermal cut off valve (tv) working pressure:15 bar. end connections g 3/8 rh to en 5 60 / iso 3253 standards. make: messer / esab / gce / weldstar / ador/witt. note: 1) offers of oems o r their authorized dealers enclosing valid authorized dealership certificate only will be considered. 2) the su ppliers shall send test certificate from govt. authorized test house. in case of international brand, the test c ertificate from reputed institute like bam, germany is mandatory. 3) the suppliers should have equipments for testing of flash back arrestors and calibration. the purchaser has the right to inspect these facilities. [ warranty period: 30 months after the date of delivery ] ] , flash back arrestor (dry type) for regulator 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) and thermal cut off valve (tv) working pressure: 1.5 bar for acetylene/5.0 bar for lpg. e nd connections g 3/8 lh to en 560 / iso 3253 standards. make: messer / esab / gce / weldstar / ador /witt. note: 1) offers of oems or their authorized dealers enclosing valid authorized dealership certificate only will be considered. 2) the suppliers shall send test certificate from govt. authorized test house. in cas e of international brand, the test certificate from reputed institute like bam, germany is mandatory. 3) the suppliers should have equipments for testing of flash back arrestors and calibration. the purchaser has the right to inspect these facilities. [ warranty period: 30 months after the date of delivery ] ] , flash back arrestor (dry type) for torch end of oxygen lines to prevent flash backs in oxy fue l 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 g3/8 rh to en 560/iso 3253 standards. make: mess er / esab / gce / weldstar / ador/witt. note: 1) offers of oems or their authorized dealers enclosing v alid authorized dealership certificate only will be considered. 2) the suppliers shall send test certificate fro m govt. authorized test house. in case of international brand, the test certificate from reputed institute like bam, germany is mandatory. 3) the suppliers should have equipments for testing of flash back arrestors a nd calibration. the purchaser has the right to inspect these facilities. [ 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 o xy fuel system conforming to en 73 / iso 5175-1 / is 11006 standards with flame arrestor (fa) and non ret urn valve (nrv) working pressure: 1.5 bar for acetylene/5.0 bar for lpg. end connections g 3/8 lh to en 5 60 / iso 3253 standards. make: messer / esab / gce / weldstar / ador/witt. note: 1) offers of oems o r their authorized dealers enclosing valid authorized dealership certificate only will be considered. 2) the su ppliers shall send test certificate from govt. authorized test house. in case of international brand, the test c ertificate from reputed institute like bam, germany is mandatory. 3) the suppliers should have equipments for testing of flash back arrestors and calibration. the purchaser has the right to inspect these facilities. [ warranty period: 30 months after the date of delivery ] ]