94450 Combination Deflagration Flame Arrester & Free Vent

The Shand & Jurs 94450 Combination Deflagration Flame Arrester/Free Vent provides both positive flashback stop 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, 304 or 316 stainless steel, ductile iron, and cast iron. Raised face or flat face flange to match ANSI, EN1092, or JIS connections.

For highly corrosive applications, body and tube bank construction of Duplex Stainless Steel, Hastelloy C, or Alloy 20 are available.

Temperature monitor device to be installed on unprotected side of Tube Bank.

Temperature monitor device available. Consult Factory.


  • ATEX EN 12874 Approved
  • ISO 16852 Approved
  • One compact fitting for positive flame arrest & maximum flow venting
  • Easily accessible, unitized tube bank
  • Available in sizes 2’’ (50 mm) through 12’’ (300 mm) ANSI, EN1092, JIS sizes available
  • Wide range of standard construction materials
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.

Related Products

94406 Vertical Inline Deflagration Flame Arrester

94407 Horizontal Inline Deflagration Flame Arrester

94470 Combination Conservation Vent And Deflagration Flame Arrester

Flame Arresters

Detonation Arresters

Emergency Vents