Which component serves to prevent overpressure in the gas system?

The safety relief valve is specifically designed to prevent overpressure in a gas system. Its primary function is to release excess pressure that may build up beyond predetermined levels, ensuring that the gas system operates within safe limits. When the pressure exceeds a safe threshold, the safety relief valve automatically opens to allow gas to escape, which helps to prevent potential hazards such as explosions or equipment failure caused by excessive pressure.

In gas systems, maintaining proper pressure is crucial for safe operation, as overpressure can lead to serious safety risks. This component is an essential safety feature that activates only when necessary, providing a preventive measure against dangerous conditions.

Other components, while they have important roles, do not specifically address overpressure. For example, the pressure regulator helps to maintain a consistent outlet pressure, but does not relieve excess pressure. A gas meter measures the flow of gas but does not have safety features for pressure management. The shut-off valve controls the flow of gas but does not prevent pressure build-up. Thus, the safety relief valve is the component that directly addresses the need to prevent overpressure in gas systems.