Flame arresters are safety devices designed to prevent the propagation of flames in industrial processes. They work by allowing gas or vapor to pass through while cooling and extinguishing any flames that may attempt to travel back through the device. This is crucial in environments where flammable materials are present, as it helps to protect equipment and personnel from potential explosions. These devices are commonly used in various applications, including storage tanks, piping systems, and ventilation systems. Flame arresters come in different types, such as deflagration arresters and detonation arresters, each suited for specific conditions and requirements in hazardous areas.