15444-2
NATURAL GAS SYSTEM
7. Install a gas cock and union in the pipe adjacent to each appliance, in such a
manner that the appliance may be removed without disturbing the gas piping.
Gas pipe sizes are based on the terminal equipment designed around. The Contractor
shall confirm line sized based on NFPA 54 sizing criteria for the terminal equipment
provided on the job prior to the start of the installation.
Leak testing shall be in accordance with NFPA 54 requirements. Test pressure shall
be 1 % times working pressure. Test duration shall be not less than % hour for each
500 ft? of pipe volume. Piping system shall withstand the test pressure without
showing any evidence of leakage.
Purging: After piping has been tested, the Contractor shall fully purge the gas piping
in accordance with NFPA 54.
END OF SECTION
13089K
