supply of flash back arrestorflash back arrestor,flash back arrestor (dry type) for torch end of acetylene/lpg lines to prevent flash backs in oxy fuel syst em conforming to en 730/iso 5175-1/is 11006 standards with flame arrestor (fa) and non return valve (nrv) working p ressure: 1.5 bar for acetylene/5.0 bar for lpg end connections g 3/8 lh to en 560/iso 3253 standards. make: messe r (cg-91 fuel) or esab (fr-18) or gce(fr-20t fuel) or witt (lpg e460-3) only. note: 1) offers of oems or their authori sed dealers enclosing valid authorised dealership certificate only will be considered. 2) the suppliers shall send test cer tificate from govt. authorised test house. in case of international brand, the test certificate from reputed institute like b am, 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 installations. specn: en 730/iso 5175-1/is 11006 specn: en 730/iso 5175-1 /is 11006 standards with flame arrestor (fa) and non return valve (nrv) working pre [ warranty period: 24 months aft er the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]