Leak Checks:  Using a High Pressure Gauge

Leak checks determine if the propane piping system is suitable for service and must be performed on the vapor distribution piping system immediately after turning on the gas in a new gas system or a system that has been restored after an interruption of service. If leakage is indicated, shut off the gas until the necessary repairs have been made.  As opposed to a pressure test, a leak check includes the piping system connected to the appliance(s).  

The type of testing instrument used in performing a leak check depends on the type of leak check being performed.  For a high pressure leak check, the testing instrument is placed after the first stage regulator and before the second stage regulator. This test usually uses a 30 psi gauge.

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For more information about CETP and CETP E-Learning, get in touch with the Propane Education & Research Council's CETP Program Manager, Courtney Gendron, courtney.gendron@propane.com.