They are tested to ASCE 25-97, State of California 12-23-1 & ANSI Z21.70-1981 Standards for Seismic Gas Valves. The valve is then manually reset once a safety inspection has been done and you’re sure there are no leaks in the building.Įach valve is tested and certified before leaving the factory to meet approval from the State Board of Architect and LA Counties stringent requirements. A sensor moves when the valve is subjected to a 5.4 magnitude or larger earthquake, releasing the valve float which blocks the line and prevents gas going in to the building. The seismic valves work on a simple, consistent and accurate principle. We have installed thousands of automatic gas shut off valves to the manufacture’s specification to ensure safe, trouble free use. They are designed for earthquakes, accidents and any event of impact. Seismic shut-off valves are a simple, but effective way to ensure you never experience a gas fire after an earthquake.
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