FLASH BACK ARRESTOR CONNECTION FOR PROPANE

TORCH SIDE FLASHBACK ARRESTOR FOR FUEL GAS HOSES

A non-resettable torch end flashback arrestor for use with Acetylene or Propane fuel gases with 3/8 BSP LH connections.  Fitted between the torch and the fuel gas hose, a torch flashback arrestor can be used as an additional safety device when using Oxy Fuel equipment.  These are particularly recommended when using an Acetylene or Propane hose of 10 metres and longer.

These flashback arrestors will screw directly onto the inlet connections of a type 5 or NM cutting torch (3/8 BSP size).

The main function of the flashback arrestor is to prevent gas mixtures occurring with potentially very dangerous consequences.  An FBA (Flashback arrestor) should be fitted to both the Fuel gas and Oxygen hose lines on the regulator side and instances where the hose is long, on the torch side too.  A fuel gas FBA has a left hand thread, whilst Oxygen flashback arrestors have a right hand thread.  The difference in thread direction being another safety device to stop a mix up of equipment and potential gas mixtures being possible.

The flashback arrestor incorporates a pressure sensitive cut off valve or a non return valve, plus a temperature sensitive cut off valve.

These particular flashback arrestors are classed as non resettable.  If the FBA is triggered due to an internal temperature cut off, it will no longer be useable and must be re-placed.  They will withstand a series of minor flashbacks but will not react as a consequence of external heat though.