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An earthquake valve or seismic valve is an automatic way to shut off the low pressure regulated gas supply to a structure during a major earthquake and/or if a pipe is broken. These are applicable both to utility supplied natural gas and to gaseous liquefied petroleum gas (LPG). These small devices are installed on the property gas meter (usually between the utility company's metered installation and the structure piping) and are designed to instantly stop the natural gas supply in order to protect the structure if a gas leak or line break occurs during an earthquake.

Fires or explosions due to gas line breaks can be more damaging than the actual earthquake itself.

The utility companies recommend you shut off your gas immediately after an earthquake if you smell gas. If you are at work or away when an earthquake hits, then you may not be able to get home in time. An earthquake valve will take care of this instantly for you.

Below is an animated description of how they work

AGV Series
Horizontal Valve Operation

VAGV Series
Vertical Valve Operation

Feel free to call us at 1(800) 223-5874
We will be glad to answer any questions you may have.

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