A piped gas automatic shut-off valve, or simply automatic shut-off valve, is installed on low-pressure gas pipelines. It is a device that automatically closes the gas supply without electricity or other external power when the pipeline pressure is low, high, or interrupted, and can only be manually opened if necessary. It is a new generation of energy-saving and pollution-free gas safety protection product. Suitable for piped natural gas, liquefied petroleum gas, and manufactured gas, it greatly improves the gas safety and management of gas companies (e.g., automatic shut-off of gas pipelines in cases of disconnection, maintenance, gas outage, gas supply restoration, accidental gas interruption, low gas pressure, high gas pressure, and pressure rise caused by pressure regulator malfunctions), protecting the safety of users' property and personal safety.
