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// CODE SNIPPET

Section 414 (IFGC) Supplemental and Standby Gas Supply

Fuel Gas Code 2015 of Utah > 4 Gas Piping Installations > 414 (IFGC) Supplemental and Standby Gas Supply
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414.1 Use of Air or Oxygen Under Pressure

Where air or oxygen under pressure is used in connection with the gas supply, effective means such as a backpressure regulator and relief valve shall be provided to prevent air or oxygen from passing back into the gas piping. Where oxygen is used, installation shall be in accordance with NFPA 51.

414.2 Interconnections for Standby Fuels

Where supplementary gas for standby use is connected downstream from a meter or a service regulator where a meter is not provided, a device to prevent backflow shall be installed. A three-way valve installed to admit the standby supply and at the same time shut off the regular supply shall be permitted to be used for this purpose.
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