Sell Multi-function seismic valve

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This valve is designed to close in the events of earthquake, gas leakage and other unexpected accidents to prevent against such potential risks as explosion, fire or gas toxicosis where gases are supplied, like houses, hotels, restaurants.
This valve is featured with the following extraordinary functions over normal seismic valves:
1. When earthquake, gas overflow or over pressure occurs, it can shut off gas supply without internal or external source of electrical power needed.
2. Connected with gas alarm or detector, it can shut off gas supply when gas leakage happens.
3. Easy manual reset.