Everything You Need to Know About Flame Arresters

A flame arrester, as the name suggests, is a device used to stop a flame from entering into an atmosphere where combustible gases may be present and prevent explosions. Gas-based equipment and appliances such as glycol dehydrators and indirect line heaters often use flame arresters. Flame arresters are also used in-line of a flare header just before the flare stack.

  • Everything You Need to Know About Flame Arresters
  • flare stack flame arrester

How Does a Flame Arrester Work?

  • Flame arresters consist of screens, perforated plates, and slots that are enclosed in a frame. The case helps to absorb the heat of a flame and extinguish it.
  • A standard flame arrester has many small tubes that help to produce the required venting capacity while preventing the passage of flame.
  • It works on the principle that the speed of the flame decreases with the reduction in the diameter of the pipe.
  • When the pipe has a very small diameter, regardless of flame speed, it is possible to prevent the passage of flame completely.

What is the Function of a Flame Arrester?

A flame arrester is commonly used for the following purposes:

  • Prevent an open fire from spreading
  • Confine the flame within an enclosed location
  • Protect volatile mixtures and chemicals from igniting
  • Stop an explosive event from spreading to other areas
  • Stop the flame travelling at a subsonic speed

Common Applications of Flame Arresters

They are often used with:

  • Line heaters, glycol dehydrator reboilers, and process heaters
  • Fuel storage tanks
  • Storage cabinets for paint, and other flammable substances

Get High-Quality and Reliable Flame Arresters to Ensure Safety

At Aspire Energy Resources Inc., we have over 25 years of experience in the design and fabrication, of process equipment.

If you are looking for assistance in selecting the right flame arrester for your application, give our experts by calling 403-314-5422 or 1-800-993-9958. You could also fill out our online form to get a project quote.

Request a Project Discussion: 403-314-5422 or

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