DFC Series Flame Arresters


Features & Benefits

  • Suitable for in-line deflagration
  • Suitable for Hydrogen applications
  • Exceptional flow capacities with minimal pressure drop
  • Bi-directional protection
  • Elevated operating pressure models available
  • Sizes and materials to suit a wide range of applications
  • Replaceable elements for ease of maintenance

Principles of Operation

The Elmac Technologies® DFC Series of In-Line Deflagration Flame Arresters are designed to prevent propagation of flames in gas or vapour mixtures. By locating the arrester in close proximity to the potential source of ignition, any flame or explosion is confined to the immediate area.

In the event of explosion, the combustion products are cooled at the element surface by heat dissipation thus preventing continuation of the combustion process through the flame arrester and into the protected line. The flame cannot pass through the flame arrester, and is subsequently contained or extinguished.

Explosion Groups

Elmac DFC Series of In-Line Flame Arresters are ATEX certified for Explosion Groups IIB & IIC. Suitable for Hydrogen Applications.

Feature Standard Fitting Options*
Arrester Housing Materials Carbon Steel or Stainless Steel Special materials on request
Element Material 316L Stainless Steel Hastelloy
Connections ANSI 150 Flange PN16 Flange, Female BSP/NPT, Male BSP/NPT
Arrester Finish Painted (Carbon Steel Arresters) Offshore Paint, PTFE Coated, Others on Request