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Flashback Arrestors vs. Check Valves: Do you REALLY know the difference?

Apr 23, 2014

Flashback Arrestors

  • Designed to stop a flashback AND prevent reverse flowSuperFlash Flashback Arrestors
  • Flashback Arrestors have a flame barrier which stops a rapid flame propagation through hoses, regulators and torches.
  • Flashback Arrestors also include an internal Check Valve which is protected by the flame barrier.
  • SuperFlash Flashback Arrestors can come with a thermal shut off that can stop hose burnback and repeated flashbacks.
  • SuperFlash Flashback Arrestors are U/L approved and OSHA compliant!
  • SuperFlash Flashback Arrestors will stop a flashback even if the internal check fails or leaks.

Check Valves

  • Check Valves only prevent the reverse flow of gases, and CANNOT stop a flashback.
  • Check Valves do NOT have a flame barrier
  • Check Valves do NOT contain an inlet filter, which keeps out dust and debris.
  • Check Valves need to be checked at least annually, or more often in abusive or heavy duty applications. Most people don't take the time to inspect them!
  • If a Check Valve fails, the reverse flow of gases (which is extremely dangerous) WILL go through the Check Valve.

Tip!  How often should I replace my Flashback Arrestors?

The average lifespan of a typical Flashback Arrestor is 18 months, depending on average use, by CGA and OSHA requirements for industrial applications. We recommend testing for flow and reverse flow at least once a year (see product instructions for how to test).

The information in this document is provided by SuperFlash Compressed Gas Equipment, LLC ("SuperFlash) as general guidance only and may not explain all relevant safety, regulatory, hazards and/or requirements for your application. SuperFlash has based this example on resources and experience available to the company.  SuperFlash and its affiliates make no guarantee that this document(s) or product(s) is currently up to date or accurate. Use at your own risk. SuperFlash is not liable for any damage that may occur related to or arising from this information or product.  Nothing in this document constitutes a binding offer and/or acceptance, warranty or promise. See SuperFlash's website for more information and links to the CGA and other websites. Prices subject to change without notice. No rain checks. Offers not valid on previous purchases. Not responsible for typographical and pictorial errors, inaccuracies, or omissions that may relate to product pricing and descriptions. SuperFlash reserves the right to make corrections and/or update information at any time, without prior notice. All content is copyrighted and trademarked by SuperFlash or its affiliates and cannot be used without express written permission by an authorized employee of SuperFlash.


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