The L&J Technologies 94406 Vertical Inline Deflagration Flame Arrester is a Shand & Jurs inline flame arrester designed for vertical installation in low-pressure tank venting and piping applications where flame propagation control is required.
This model is used in systems that may handle flammable liquids or low-flash-point solvents and is commonly associated with pressure-vacuum vent arrangements or inline low-pressure piping configurations.
The 94406 features a removable tube bank assembly with a spiral-wound crimped ribbon design around a solid core.

This construction supports flame arrester function while allowing inspection, maintenance, and tube bank replacement access through the unit’s bolted body sections.
Available body construction options include cast aluminum, cast iron, ductile iron, cast steel, 304 stainless steel, and 316 stainless-steel, with 304 or 316 stainless steel tube bank options. Additional alloy construction may be available for corrosive service environments.
For industrial facilities evaluating vertical inline deflagration flame arresters, Process Controls Corporation can assist with model review, configuration coordination, and replacement support based on the tank system, piping arrangement, connection requirements, and application conditions.
Key Characteristics
- Vertical inline deflagration flame arrester for low-pressure tank or piping applications
- Shand & Jurs 94406 model from L&J Technologies
- Designed for use with flammable liquids or low-flash-point solvent applications where supported by system requirements
- Often installed with pressure-vacuum vents or in low-pressure inline piping systems
- Removable tube bank design supports inspection, maintenance, and replacement access
- Available in multiple body material options, including aluminum, cast iron, ductile iron, cast steel, 304 stainless steel, and 316 stainless-steel
- Standard tube bank material options include 304 stainless steel and 316 stainless-steel
- Flanged connection options are available in multiple standard size ranges and flange configurations
- Manufacturer-published approvals and configuration details should be verified against the current technical data sheet for the selected application
Ideal Applications
- Low-pressure storage tank venting systems
- Inline vapor piping applications requiring a vertical deflagration flame arrester
- Installations using pressure-vacuum vents with compatible flame arrester arrangements
- Facilities handling flammable liquids or low-flash-point solvents where a supported flame arrester configuration is required
- Replacement or specification support for Shand & Jurs 94406 vertical inline flame arresters




