When the gas limit switch comes into operation, what device does it activate?

When the gas limit switch comes into operation, it specifically activates the fuel line solenoid valve. The primary function of the gas limit switch is to monitor and control the operation of the gas supply system to ensure that the gas pressure does not exceed safe limits. If the pressure does rise beyond a predetermined level, the limit switch will trigger the solenoid valve to close. This action effectively shuts off the flow of gas, preventing potential unsafe conditions, such as gas leaks or explosions, from occurring.

The fuel line solenoid valve serves as a crucial safety mechanism in the gas delivery system, ensuring that gas is only supplied when it is safe to do so. By activating this valve, the system maintains operational safety standards and protects both equipment and personnel. This connection highlights the critical safety role played by the gas limit switch in conjunction with the solenoid valve within high-pressure gas systems.