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.
 
The safety device DG91N according to DIN EN ISO 5175-1:
Avoids dangerous gas mixtures by a gas non-return valve. (NV)
Stops flashback through flame arrestor. (FA)
A temperature-sensitive cut-off valve stops the gas flow when a predetermined temperature is exceeded. (TV)
A dust filter protects the gas non-return valve against contamination.
Every safety device is 100% tested.
All metal components in brass 2.0401 / spring 1.4310.
 
Safety elements of the IBEDA Safety device DG91N:
NV Gas non-return valve.
FA Flame arrestor.
TV Temperature-sensitive cut-off valve.
 
Additional features:
DF Dust filter
 
Product Number 
Oxygen - HL070318
Fuel Gas - HL070317
 
Maintenance:
The safety devices are to be tested by a qualified and authorised person at regular intervals according to country-specific regulations. The safety device is to be tested for gas tightness, gas flow and gas return at least once a year. We would be pleased to offer you the flashback arrestor testing unit model PVGD. It is not allowed to open the safety devices.
 
At Truflame we stock a wide range of Hi-Lo gas equipment, see our full range of gas safety devices and flashback arrestors, shop here. Not sure what specifications of gas equipment you need? Get in touch with our knowledge team for more guidance, chat with us.