Beveiliging tegen decompressie FN12 / FN40

Beveiliging tegen decompressie vanuit de lagedruk leidingsystemen.

  • hoogste kwaliteit van de wereldmarktleider
  • beveiligingselementen: vlamdover, thermisch gestuurde afsluiter
  • stopt gevaarlijke Acetyleenterugslag
  • ieder product voor uitlevering getest
  • BAM gecertificeerd
  • 70 X 160/200 mm, 3.091-3.846 g
  • FN12 Q= ca. 76 m³/h (vrije uitstroom)
  • FN40 Q= ca. 140 m³/h vrije uitstroom)

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WITT Decomposition Arrestors for reliable protection against decomposition of acetylene and flashbacks of fuel gases. Every Arrestor 100% tested.

The best Safety Devices in the world

  • a large surface area flame arrestor of stainless steel construction:
    - stops dangerous decomposition of acetylene independent from flow direction
    - extinguishes any dangerous flashback entering the device in any direction
  • a temperature-sensitive cut-off valve extinguishes sustained flashbacks long before the internal temperature of the arrestor reaches a dangerous level

Operation / Usage:

  • as a Decomposition Arrestor for acetylene in medium-pressure pipelines for protection of cylinder equipment and bundles in accordance with DIN EN ISO 14114
  • as a Decomposition Arrestor to protect pipelines in supply systems
  • FN40 for double flow capacity
  • WITT Decomposition Arrestors / safety devices 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 / safety devices are only to be serviced by the manufacturer


Constructed and tested according to DIN EN ISO 14114
Company certified to ISO 9001 and PED 2014/68/EC Module H
CE-marked in accordance with 2014/68/EC


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