Detonation arresters are safety devices designed to prevent the propagation of explosive pressure waves in pipelines or vessels. They work by dissipating the energy of a detonation, allowing gases to flow safely without causing damage or injury. These devices are commonly used in industries that handle flammable gases, such as oil and gas and chemical manufacturing. Typically installed at strategic points in a system, detonation arresters can be passive or active. Passive arresters rely on physical barriers and specific designs to absorb shock waves, while active systems may use sensors and valves to respond to pressure changes. Their effectiveness is crucial for maintaining safety in environments where explosive materials are present.