How to use natural gas self-closing valve

Natural gas self-closing valve will prevent gas output under abnormal conditions. The self-closing valve will automatically close the valve when the pipe network stops gas or the pressure is too high.

Pipeline gas self-closing valve, referred to as self-closing valve for short, is a device installed on the pipeline of low-pressure gas system. When the gas supply pressure of the pipeline is under-pressure or over-pressure, it can be automatically closed and manually opened without electricity or other external power.

The self-closing valve installed at the joint between the end of the pipeline and the rubber hose behind the gas meter should have the function of pressure loss and closing. The invention is suitable for pipeline natural gas, liquefied petroleum gas and artificial gas.

Extended data

principle

The basic principle of pipeline gas self-closing valve is to magnetize permanent magnet materials into permanent memory multipolar permanent magnet linkage mechanism according to the design requirements, identify the change of gas pressure parameters passing through it, and automatically close the valve and cut off the gas source when it exceeds the safety set value.

function

It has the functions of undervoltage, overvoltage, automatic shutdown and manual reset. When the gas stops, the gas supply is abnormal, and the hose falls off, it will automatically close to prevent leakage;

No electricity, or any external power supply, to achieve automatic shutdown;

Automatic operation, long-term reliability and error-free operation;

The working state is clear, which is convenient for troubleshooting;

Simple installation and convenient use.

References:

Baidu encyclopedia-pipeline gas self-closing valve