Flame arresters are widely used in various industrial applications and can be classified based on different criteria. They are commonly found in storage tanks, gas stations, heating furnaces, flare systems, vent lines, and gas pipelines. Depending on their structural design, flame arresters can be categorized into several types, such as metal mesh, corrugated, foam metal, parallel plate, porous plate, water-seal, and packed flame arresters.

Classification by Purpose

These include tank flame arresters, gas station flame arresters, furnace flame arresters, torch flame arresters, vent pipe flame arresters, and pipeline flame arresters. Each type is designed to prevent the spread of flames under specific conditions and environments.

Classification by Installation Location

Pipe-end flame arresters are installed at the end of exhaust or vent pipes, while pipe flame arresters are placed within the middle of a pipeline. This placement ensures that any potential flame propagation is effectively stopped before it reaches critical areas.

Classification by Flame Propagation Speed

Explosion-proof flame arresters are designed to stop subsonic flames, which typically occur during deflagration events. Detonation-resistant flame arresters, on the other hand, are used for supersonic flame propagation, often associated with detonations that involve shock waves.

Classification by Gas Type

Flame arresters are also categorized based on the type of flammable gas they are intended to protect against. These include Class I, IIA, IIB, and IIC gases, each requiring specific designs to ensure safety. For detailed information on gas classifications, refer to standards such as HGJ 21289.

Classification by Structural Design

Common structural types include metal mesh flame arresters, corrugated flame arresters, foam metal flame arresters, parallel plate flame arresters, multi-plate flame arresters, water-seal flame arresters, and filled-type flame arresters. Each structure offers unique advantages depending on the application and environment.

Common Flame Arresters: Examples include oxygen pipeline flame arresters, gravel flame arresters, and acetylene flame arresters. These devices play a crucial role in preventing fire propagation in hazardous environments.

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