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Photo of Detonation Arrester

9431X Detonation Flame Arresters

The Shand & Jurs Detonation Flame Arresters provide protection against flame propagation through piping runs and vapor recovery systems, while allowing maximum flow efficiencies. This design quenches a flame front approaching from either direction, even if it has transitioned to a detonation. The Arresters contain a detonation while retaining the integrity of both the arresting element and the housing. This is ensured by the design of the passages in the tube bank and the detonation resistant construction.

Standard construction of the housing is available in Carbon Steel or 316 Stainless Steel. The tube bank is Stainless Steel throughout. Special construction materials to withstand the corrosive actions of some vapors and atmospheric conditions are available upon request.

These models are available in a range of sizes from 2″ through 24″. Additional sizes available upon request. Standard connections are ANSI 150lb. or 300lb. Class raised face flanges. EN1092-1 sizes available.



Standard Sizes 2"-12"
  • NEC Group D
  • Factory Mutual


Standard Sizes 2"-12"
  • NEC Group D Marine
  • Factory Mutual
  • U.S. Coast Guard


Standard Sizes 2"-6"
  • NEC Group C&D
  • Factory Mutual


Standard Sizes 2"-6"
  • NEC Group C&D Marine
  • Factory Mutual


  • Withstands instantaneous pressure at the Flame front in excess of 500 psig
  • Tube bank design ensures consistent functioning
  • Carbon steel or 316SS housing construction, 316SS tube bank
  • Optional fittings for pressure taps or temperature probes
  • Standard drain plug
  • Pressure and temperature taps optional
L&J Technologies or any of it’s subsidiaries assume no responsibility and shall not be liable for any damage, injury or death caused by the mis-application or improper installation of the products that it provides. Installation shall be per manufacturer’s instructions in accordance to any applicable local, state or federal regulations. It is the responsibility of the purchaser to ensure these guidelines are followed and that the products are applied properly.

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