The L&J Technologies 94306 Vertical End-of-Line Flame Arrester is a Shand & Jurs tank protection product used on low-pressure tanks, storage tanks, and anaerobic digesters where flammable liquids, solvents, or low-flash-point gases may be present.
The 94306 is designed for vertical end-of-line venting applications and is commonly used with pressure-vacuum vents or free vent-to-atmosphere configurations when flame-arrester protection is required at the vent opening.
The 94306 uses a tube bank design with spiral-wound crimped ribbon around a solid core. This configuration supports flame arresting at the vent location while helping maintain vent flow through the arrester assembly.
Available construction options include cast aluminum, cast steel, and 316 stainless steel body materials, with aluminum or 316 stainless steel tube bank and shell options.
Standard sizes include 2″, 3″, 4″, 6″, 8″, 10″, and 12″, with flange options to match ANSI 150 lb. flat face or raised face and EN1092-1 PN16 flat face or raised face connections, depending on body material and configuration.
Selection of the L&J Technologies 94306 Vertical End-of-Line Flame Arrester is based on tank venting requirements, connection size, body material, tube bank material, flange configuration, and installation considerations.
Key Characteristics
- Product Type: Vertical end-of-line flame arrester
- Model: 94306
- Brand Family: Shand & Jurs
- Application Position: End-of-line vertical venting service
- Typical Equipment Pairing: Pressure-vacuum vents or free vent-to-atmosphere arrangements
- Tube Bank Design: Spiral-wound crimped ribbon around a solid core
- Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″, and 12″
- Body Material Options: Cast aluminum, cast steel, and 316 stainless steel
- Tube Bank/Shell options: Aluminum with aluminum shell or 316 stainless steel with 316 stainless steel shell
- Flange Options: ANSI 150 lb. flat face, ANSI 150 lb. raised face, EN1092-1 PN16 flat face, and EN1092-1 PN16 raised face, where applicable
- Approval/Gas Application: FM approval for 2″ through 12″ sizes and NEC Group D gas applications, as documented by L&J Technologies
- Maintenance Access: Tube bank can be removed for inspection, maintenance, or replacement by separating the upper and lower body sections
Ideal Applications
- Low-pressure tank venting applications requiring a vertical end-of-line flame arrester
- Storage tanks handling flammable liquids, solvents, or low-flash-point gases
- Anaerobic digester venting applications
- Tank protection systems using pressure-vacuum vents
- Free vent-to-atmosphere arrangements where flame-arrester protection is required
- Applications requiring material selection based on service environment, body material, tube bank material, and flange connection requirements
Technical Selection Notes
- Size Range: 2″ through 12″
- Maximum Static Pressure: 19.7 PSIA/5 PSIG
- Maximum Operating Pressure: 15.7 PSIA/1.0 PSIG
- Installation Note: The flame arrester should be located within 10 pipe diameters of the potential atmospheric ignition source based on FM requirements.
- Certified Dimensions: Final dimensions and specifications should be confirmed through current technical documentation before selection or installation.
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L&J Technologies 94306 Vertical End-of-Line Flame Arrester
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