In-Line vs End-of-Line Flame Arrestors: Key Installation Differences

Flame arrestors (also known as flame arresters) are vital safety features used to prevent explosions and fires in certain industrial settings. They are most commonly used on pipelines, storage tanks, and process equipment where flammable gases and vapors are present. These devices work by interrupting the flame front and preventing it from flowing through the pipeline or equipment, extinguishing the fire and preventing further damage.

Types of Flame Arrestors

An important aspect to consider when using flame arrestors is the installation method. There are two types of flame arrestors: in-line and end-of-line arrestors. The main difference between these two types lies in their installation method. Let's take a closer look at each type and understand their different features.

In-line Flame Arrestors

In-line flame arrestors are installed directly on the pipeline or process equipment. This means they are positioned in the same direction as the gas or vapor flow, usually horizontally. This type of installation is ideal for areas with limited space or where piping has already been laid. In-line flame arrestors are also useful in situations where the gas or steam being processed has a high velocity, because the direct design minimizes pressure drop.

End-of-line Flame Arrestors

End-of-line flame arrestors, on the other hand, are installed at the end of a pipeline, tank, or piece of equipment. This installation method is preferred when sufficient space is available and the gas or steam flow is not at high velocity. End-of-line flame arrestors have a perpendicular design, making them more effective at extinguishing flames in the event of an explosion or fire.

Maintenance Considerations

Another important consideration when choosing between in-line and end-of-line flame arrestors is maintenance.

• In-line flame arrestors are easily accessible for cleaning and maintenance because they are installed in the pipeline.
• End-of-line flame arrestors may require disassembly of the pipeline or equipment for maintenance, which can be more time-consuming and costly.

Summary

In summary, the main difference between in-line and end-of-line flame arrestors is the installation method. In-line flame arrestors are installed directly on the pipe and are ideal for confined spaces and high-velocity gas or steam flows. End-of-line flame arrestors are installed at the end of a pipe or piece of equipment and are most effective in situations where space is available. Choosing the right installation type for your specific needs is crucial for optimal flame arrestor safety and functionality.

 

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Cashco’s flame arrestors are engineered to stop the propagation of flames in gas piping systems, helping protect equipment, personnel, and facilities. For more information about Cashco's arrestors, view all models here .

Cashco is dedicated to ensuring you select the best solution for your tank protection needs. Need help choosing the right flame arrestor? Contact us and our experienced team will gladly assist you in finding the ideal product!