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Earthquake Shut-Off Valves 101

May 15, 2020 Contractor2020

If you live in an area that is prone to earthquakes, an earthquake shut-off box is more than just a regulation for homeowners to follow. It is an important device that can save you and your family from unnecessary harm in the event of a natural disaster. 

main water valve

What does an earthquake shut-off valve do?

To put it simply, earthquake shut-off valves automatically close off the gas flowing into your line at the gas meter. These devices work in times of emergency to prevent natural gas leaks which can ultimately lead to major health issues along with property damage. 

There are two kinds of earthquake shut-off valves: 

  • Seismic natural gas shut-off valves work when an earthquake of magnitude 5.1 or higher is detected
  • Excess-flow valves function when they sense a gas leak or surge 

How they work

Earthquake shut-off valves prevent dangerous gas leaks during earthquakes by immediately turning off the flow of gas once seismic activity or a surge in gas is detected. Some of the most extensive damage from earthquakes can be caused by ignited natural gas due to broken gas lines or undetected leaks. When an earthquake occurs and gas leaks inside a structure, it creates an atmosphere ripe for fires and explosions. Earthquake shut-off valves prevent this from happening by acting as a block between your gas supply and your home. 

Earthquake shut-off valves installation

These safety devices are relatively easy to install for professionals. Once the gas supply to your home is turned off, we access your gas meter and determine whether or not certain sections of pipe will need to be removed or reconfigured. The earthquake shut-off valve is then placed between the supply pipes and your meter. 

To install an earthquake shut-off valve and protect your home and loved ones from potential property damage caused by seismic activity, or if you have questions about your existing valve, feel free to call Reichelt Plumbing at (219) 322-4906. We’ve been proudly serving Schererville, Indiana and surrounding areas for over 25 years.

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Reichelt Plumbing

451 Winston Court,STE A

Schererville, IN 46375


(219) 322-8312

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Call Us at (219) 322 4906