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Westech Flame Arrester – Series 40

Series 40 “Defender”

Westech Series 40 In-Line Flame Arrestors are designed to quench deflagrations.  The Series 40 installation is limited to 50 pipe diameters of straight pipe to an ignition source.  It can be installed at the end of a vent line.  The Series 40 in-line flame arrester is constructed with fabrication Carbon Steel body, 316SS Elements.  The elements are designed with corrugated (Crimped ribbon) 316SS sheets that prevent flame transmission but allow free vapour flow.  The arrester body is available in an eccentric design that won’t allow liquid build up in the arrester housing when installed in the horizontal position.


  • Low Pressure Drop
  • Easily Removable element
  • Horizontal or Vertical installation
  • Bi-directional
  • Less Maintenance
  • Single Element Design

Available: Canada Wide

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Manufacturer info

VAREC (VApor RECovery Specialty Company) began business in the 1930s at its manufacturing plant in Compton, California. Varec was there in the infancy stage of the biogas market in the early 1950s. From the onset, Varec’s focus was to deliver Biogas Handling products that suited customers’ specific requirements, even if it meant creating the product off the drawing board.

Website: https://www.varec-biogas.com/