Decomposition Arrestor MGN

Decomposition arrestor stops dangerous decomposition of acetylene in the high-pressure pipes of bottling plants

  • highest quality from the world market leader
  • safety elements: flame arrestor [FA], optional: check valve [NV]
  • every device is tested before shipment
  • opening pressure approx. 60 mbar
  • DIN EN ISO 15615
  • DIN EN ISO 14114
  • EIGA acetylene IGC DOC 123/4
  • 29,5 X 88,5 mm, 385-412 g
  • up to 25 bar

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WITT Decomposition Arrestors for reliable protection against decomposition of acetylene up to 25 bar. Every Arrestor 100% tested.


  • meets the requirements in accordance with TRAC 207, clause 8.1 "Decomposition Arrestors in acetylene plants" and EN ISO 15615:2002, clause 6.4 "acetylene decomposition test". Conforms to the Code of Practice (EIGA acetylene IGC Doc 123/04)
  • one-time inspection by the BAM
  • protect from accidents during filling of acetylene gas cylinders
  • a large surface area flame arrestor FA of stainless steel construction: stop dangerous decomposition of acetylene from both sides or only from one direction, depending on version
  • a spring-loaded check valve NV prevents slow or sudden reverse gas flow forming explosive mixtures
  • in the gas supply (option) - opening pressure approx. 60 mbar

Operation / Usage:

  • as a Decomposition Arrestor for acetylene in high pressure pipe-lines for protection from filling equipment
  • WITT Decomposition Arrestors may be mounted in any position / orientation
  • the maximum ambient / working temperature is 60 °C / 140 °F


  • it is recommended that an annual body leakage test is performed
  • Decomposition Arrestors are only to be serviced by the manufacturer

Company certified to ISO 9001 and PED 97/23/EC Module H


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