Self-Closing Valve

Self-closing valve is a device that is installed on the low-pressure gapipeline system in house and can automatically close but needs to bmanually opened without the aid of electnicity or other extemnal powewhen there is under-pressure and overpressure of the pipeline gas supplpresure. The self-closing valve installed at the connection between rearpipeline end of gas meter and rubber pipe end shall be provided with thfunction of closing in the case of loss of pressure.

The basic principle of self-closing valve is to magnetize and fabricatethe permanent magnet material into a multi-pole permanent magnetlinkage mechanism of permanent memory. The mechanism can identifthe change in gas pressure parameters passing through it, and the valveis automaticully closed when the safety set value is exceeded to cut offthe gus source.

The self-closing valve is provided with the function of automaticshutdown and manual reset in the case of under-pressure, overpressureand loss of pressure. When there is stop of gas supply, abnormal gassupply, falling off of rubber pipe, etc. The self-closing valve canautomatically close to prevent leakage. Automatic closing without theaid of electricity or any extemal power;

Automatic working, long-term reliability, no malfunction:Clear working status. easy to troubleshoot;Easy to install and easy to use.

Applicable medium: Natural gas, coal gas, liquefied petroleum gas andother non-corrosive gases.

Connection size: G1/2"thread.