What is required to have a backfire flame arrestor?

A backfire flame arrestor is a safety device typically installed on the air intake of an internal combustion engine to prevent backfires from igniting potentially flammable vapors in the intake system. The arrestor works by trapping and extinguishing any flames that may occur during a backfire event.

In some cases, flame arrestors may be required by law for certain vehicles or equipment that are operated in potentially hazardous environments where the risk of fire or explosions is higher. For example, boats with gasoline-powered engines are often required to have flame arrestors to prevent fires on board.

It is important to regularly inspect and maintain flame arrestors to ensure they are functioning properly and are free from any obstructions that could prevent them from effectively extinguishing flames. Failure to have a properly functioning flame arrestor can pose a serious safety risk and may result in accidents, injuries, or property damage.