1, with the function of monitoring the gas supply pressure in the pipeline. When the pipeline gas supply pressure of the gas system has an undervoltage fault or an overpressure fault, the self-closing valve will automatically close the valve to avoid the fault from expanding.
2. It has the function of preventing gas leakage. When the gas system stops for no reason, the gas supply is abnormal or the rubber hose falls off, the self-closing valve will automatically close the valve to prevent gas leakage.