FLAME ARRESTORS
END-OF-LINE & IN-LINE MODELS
Engineered protection for flammable gas and vapour systems
PASSIVE PROTECTION, ENGINEERED FOR THE DUTY
FLOW
Confirm closure, gasket, instruments, relief route and drain position.
QUENCH
Charge within approved material, level and temperature limits.
PROTEСТ
Close the vessel and establish the intended pressure boundary.
MAINTAIN
Monitor pressure and temperature throughout the process cycle.
FLAME ARRESTORS OVERVIEW
Adriti flame arrestors are safety devices intended to prevent flame propagation through pipelines, tank vents and process systems handling flammable gases or vapours. During normal operation, process gas passes through the element; during an ignition event, the flame front is cooled and quenched before it can travel to the protected side.
WORKING PRINCIPLE
END-OF-LINE FLAME ARRESTOR
Installed directly on a vessel vent nozzle or at the termination of a vent line. It helps prevent an external ignition source from entering the tank or vessel.
IN-LINE FLAME ARRESTOR
Installed within a pipeline between process sections. It helps prevent flame transmission from the exposed side to the protected side of the system.
SELECTION STARTS WITH THE HAZARD AND INSTALLATION
Confirm gas group, flame duty, location, pressure, temperature, piping arrangement and allowable pressure drop before selecting the arrestor configuration.
PRODUCT CONFIGURATIONS
END-OF-LINE TYPE
IN-LINE FLANGED TYPE
FEATURES & BENEFITS
- High flame-quenching efficiency through a closely controlled element matrix
- Low-pressure-drop configuration selected for the required flow rate
- Robust construction for continuous industrial service
- Removable element assembly for inspection, cleaning and maintenance
- Flanged connections for reliable integration with tanks and pipelines
- Material and gasket options selected to suit process compatibility
- Custom sizes and configurations available after engineering review
PRESSURE SAFETY & MECHANICAL INTEGRITY
Pressure definitions
Operating pressure, design pressure, MAWP and relief set pressure are documented and controlled as distinct values.
Relief basis
Relief device type and capacity are selected from the governing credible overpressure scenario and discharge destination.
Vacuum condition
Steam-out, cooling, draining or blocked vent can create vacuum. full or partial vacuum is included when credible.
Cyclic service
Expected pressure and temperature cycles are reviewed where fatigue or repeated loading can govern design.
Mechanical integrity
Materials, welds, nozzles, flange, bolting, supports, NDT and pressure test are verified to the agreed specification.
Opening and isolation
The removable head is opened only after process isolation, depressurization, draining and zero-energy verification.
STANDARD PRODUCT RANGE
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Nominal Size
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1 in to 12 in; larger/custom sizes on request
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End Connection
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Flanged; ANSI Class 150 RF as standard offering
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Body Material
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Carbon steel / cast steel / SS304/SS316/SS316L
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Element Type
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Crimped-ribbon corrugated matrix
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Element Material
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Stainless steel; grade selected for process compatibility
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Gasket
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PTFE or other compatible grade, as required
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Configuration
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End-of-line or in-line
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Orientation
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As defined in the approved installation drawing
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Finish
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Industrial finish / stainless-steel finish as specified
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DATA REQUIRED FOR SELECTION
• Service fluid / vapour composition and gas group
• Line size, flange standard and pressure class
• Maximum and normal operating pressure
• Installation type: end-of-line or in-line
• Maximum and normal operating temperature
• Piping layout and distance from ignition source
• Required flow rate and allowable pressure drop
• Material, corrosion and cleaning requirements
TYPICAL APPLICATIONS
STORAGE TANKS
Tank vents for flammable liquids and solvent vapours
CHEMICAL & PETROCHEMICAL
Transfer lines, vent headers and process installations
OIL & GAS
Selected storage, transfer and utility applications
PROCESS VESSELS
Reactors, receivers and vessels with vapour connections
PHARMA & SPECIALTY MATERIALS
Solvent-handling systems and classified process areas
TRANSPORT & OFFSHORE
Application-specific vent and pipeline protection
ENGINEERING & SUPPORT
Application review and datasheet preparation
Material and connection selection support
Dimensional drawings and project documentation
Manufacturing, inspection and testing as per agreed quality plan
Installation guidance, commissioning support and spares
Need the Right FLAME ARRESTORS
for Your Process?
Our engineers will help you select, size and configure the ideal system for your application.
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