How Do I Seal Propane Fittings?

Propane is used as a cooking gas and sometimes as a heating fuel. Great care must be exercised when using propane because of its explosive qualities. Fittings, also known as compression fittings, are used to connect lines that transfer gas from a storage tank to the appliance where it will be burned. Make sure that these fittings and the hoses that accompany them do not leak.

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Step 1

Wrap Teflon tape around the threads of the compression fitting.

Step 2

Insert the connection at the end of the hose onto the compression fitting and twist until it is hand tight. Continue twisting the hose end with a wrench until it is tight.

Step 3

Test the connection for leaks by splashing a small amount of soapy water onto it. After several minutes, bubbles will begin to appear if there is a gas leak. Tighten the connection, and then repeat the test. If bubbles appear a second time simply replace the compression fitting and hose. Repeat the test on your new fitting and hose.


Jay Angel

Jay Angel has been a writer since 1998, specializing in scientific writing, as well as articles about fishing and hunting. He worked as a columnist for the Illinois newspapers, "Daily Chronicle" and "News Tribune." Angel has a Master of Science in fluvial geomorphology from Northern Illinois University.