Earthquake valves protect your home and business from gas leaks when there are seismic events. Understanding the replacement process for a 1 3/4″ Little Firefighter earthquake valve is essential. In this blog we will give you a step by step guide on how to change a Little Firefighter Earthquake Valve that measures 1 1/4″. This will ensure the safety of your property and you.

Gather the Tools and Materials

Gather all the materials and tools you need before you begin the process. This includes a Teflon Tape, pipe cutters, an adjustable wrench, a Teflon pipe wrench, a replacement Valve, and a container or bucket to catch any water or gases that may be released. It will be easier to replace the valve if you have all of the necessary tools.

Shut down the gas supply

First, shut off gas supply. Locate the gas meter, and turn the valve in a clockwise direction until it is completely closed. This step will ensure safety during the process of replacement and prevent any gas leaking.

Release pressure from the Line

Open a nearby appliance, like a stove burner, to release any gas pressure. This will allow the remaining gas to escape from the line before you replace it.

Disconnect the existing earthquake valve

Using a pipe wrench and an adjustable wrench, carefully remove the existing earthquake-resistant valve from the gas supply. Remove the valve by removing the nuts from the gas line.

Prepare the pipe and install a new valve

Remove any damaged or corrosiond sections of pipe using the pipe cutter. The pipe should be clean and free of any debris. Teflon tape can be applied to the threaded ends, which will create a tight seal. Install the new Little Firefighter 1 1/4″ Earthquake valve onto the pipe. Tighten nuts with the pipe tool and adjustable wrench.

Test for Leaks

Test for leaks once the new valve has been installed. Reconnect the gas and spray the valves with a solution of water and soap. You will notice bubbles forming if you have a leak. In such cases, you may need to tighten up the connections even more or seek professional assistance in order to ensure that a proper seal is achieved.

Restore Gas Supply, and Conduct a Test of Functionality

After confirming that no leaks exist, open the gas valve completely. Test the functionality of your new valve by gently slapping it back and forward to simulate a small earthquake. The valve should automatically stop the gas flow and provide the necessary protection in seismic events.


Replace a 1 3/4″ Little Firefighter earthquake valve is a job that requires attention to detail, and strict adherence to safety protocols. Follow the above guide to replace the valve successfully and ensure the safety and security of your property.

Remember that if you feel uncomfortable or unsure about the gas-related tasks involved in the replacement, it’s best to consult a licensed professional. To protect your home and give you peace of mind, it is vital to place safety first when replacing an earthquake-resistant valve.

By replacing your 1 1/4 inch Little Firefighter Earthquake Valve you can rest easy knowing that your gas lines are equipped with an effective safety device. This provides you and your loved one’s with an extra layer of protection.