§ 42-10. Piping.

A. 

Piping shall run as directly as possible from the storage or supply tank to the burner without sags and be so laid that, where possible, pipes shall pitch toward the supply tank without traps. Provision shall be made for expansion, contraction, jarring and vibration.

B. 

Cross-connections permitting gravity flow from one tank to another shall be prohibited.

C. 

Flexible metal hose and couplings, where used in connection with mechanical burners, shall be capable of withstanding a pressure equal to the piping to which it is connected and shall be constructed of fire-resisting materials. Hose shall be no longer than absolutely necessary but in no case shall exceed 12 inches. Only hose approved by the Underwriters Laboratories, Inc. will be approved.

D. 

Each fuel-oil tank will be provided with a separate fill pipe two inches or larger in diameter. Fill pipes when installed near any building opening shall be made as remote therefrom as practicable so as to prevent liability of flow of oil or vapor through the building opening. Each fill pipe shall be laid at a descending grade to the storage tank, except where the tank is located on higher elevation than the fill-pipe terminal. In such case a check-and-gate valve shall be placed as near the end of the terminal as it is practicable to place it.

E. 

Terminals shall be outside of the building in a tight metal box or flush road box so designed as to make access difficult by unauthorized persons.

F. 

Where practicable, fill pipes shall terminate at the curbline. In locations where it is impracticable to extend the terminal to the curbline, such terminal shall terminate at a point designated by the Plumbing Inspector of the Town of Rye. Fill pies shall not be connected to any other pipe.