Hi-Lo DG91N Flashback Arrestor according to DIN EN ISO 5175-1 avoids dangerous gas mixtures by a gas non-return valve, stops flashback through flame arrestor. A temperature-sensitive cut-off valve stops the gas flow when a predetermined temperature is exceeded.
All flashbacks are 100% safety tested by a qualified and authorised person at regular intervals according to specific regulations. The safety device is to be tested for gas tightness, gas flow and gas return.
Oxygen - HL070318
Fuel Gas - HL070317