94550 Combination Flame Arrester and Free Vent

The Shand & Jurs 94550 Combination Flame Arrester/Free Vent provides both positive flashback stop from external source and maximum venting in a compact fitting.

This Shand & Jurs fitting features an easily accessible, unitized tube bank. It’s completely removable for quick inspection and servicing, even under severe conditions of unpredictable corrosion or neglect.

The tube bank consists of passages formed by spirally winding alternate flat and corrugated sheet stock around a solid core. To insure maximum flow, constant tension control is maintained during winding.

The tube bank is contained by its shell between the body and free vent adapter. The hood and adapter can be easily removed as a unit.

Standard body construction material choices include light weight cast aluminum, cast steel, 316 stainless steel, ductile iron and cast iron. Raised face or flat face flange for all materials except aluminum.

The Shand & Jurs 94550 Flame Arrester/Free Vent Combination fitting is available in 2”, 3”, 4”, 6”, 8”, 10” and 12” sizes to match ANSI or EN1092-1 specifications.


  • One compact fitting for positive flame arrest & maximum flow venting
  • Easily accessible, unitized tube bank
  • Available in sizes 2” through 12”
    ANSI or EN1092 Flange Types
  • Standard construction available in Cast Aluminum, Cast Steel,
    316 Stainless Steel, Ductile Iron and Cast Iron
  • FM Approved, NEC Group D gas
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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