Flashback Arrestor RF53DN

Universal flashback arrestor, certified to DIN EN ISO 5175-1, with pressure relief valve [RV]

  • highest quality from the world market leader
  • safety elements: flame arrestor [FA], temperature-sensitive cut-off valve [TV], check valve [NV], filter on gas inlet, pressure relief valve
  • every arrestor 100% tested
  • BAM certified
  • 1.0 X 4.0 inches, 9.17 oz
  • acetylene max. 406 scfh (free flow-off)
  • fuel gases max. 3,708 scfh (free flow-off)
  • oxygen max. 1,977 scfh (free flow-off)

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WITT RF Flashback Arrestors for reliable protection against dangerous reverse gas flow and flashbacks according to DIN EN ISO 5175-1.

Every Arrestor 100% tested.

The best Flashback Arrestors in the world

  • a large surface area flame arrestor FA of stainless steel construction extinguishes any dangerous flashback entering the device in any direction
  • a temperature sensitive cut-off valve TV extinguishes sustained flashbacks long before the internal temperature of the arrestor reaches a dangerous level
  • a spring loaded non-return valve NV prevents slow or sudden reverse gas flow from forming explosive mixtures in the gas supply
  • a filter at the gas inlet protects the arrestor against dirtcontamination, extending the service life
  • a pressure relief valve vents excessive pressure and soot into the atmosphere, protecting the hose from bursting and the flame arrestor from clogging up, thus maintaining the flow rate (Model RF53DN only)

Operation / Usage

  • RF Flashback Arrestors are used to protect gas cylinders and pipeline outlet points (hoses and any equipment) against dangerous reverse gas flow and flashbacks
  • for pipeline outlets and single cylinders: Models RF53N, RF53DN and RF53NSK
  • for torches or burners with high flow: Model RF53NU
  • for cutting machines with high flow: Model RF53U
  • WITT Flashback Arrestors may be mounted in any position/orientation
  • only one piece of equipment may be connected to a single Flashback Arrestor
  • the maximum ambient/working temperature is 60 °C / 140 °F
  • gases: acetylene, town gas, natural gas, LPG, hydrogen, oxygen, compressed air (more upon request)


  • annual testing of the non-return valve, body leak tightness and flow capacity is recommended
  • WITT is happy to supply special test equipment
  • Flashback Arrestors are only to be serviced by the manufacturer; the dirt filter may be replaced by competent staff

Company certified according to ISO 9001
Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping




For hose or pipe connection PN 10

Test Rig 722

Test Rig 722

For the annual testing of WITT flashback arrestors and check valves

Pipe Connection WITT-FIX

Pipe Connection WITT-FIX

Pipe couplings for copper and stainless steel pipelines up to 362 psi working pressure