UL 109 Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use

standard by Underwriters Laboratories, 06/19/1997

Full Description

Please note: All interim revisions for this edition available at time of your purchase will be included.



These requirements cover fittings to be used in tubing carrying designated flammable or combustible fluids and refrigerants.

The requirements for "Marine Use" cover fittings to be used with tubing carrying designated flammable or combustible fluids in the fuel systems of boats.

"Flammable and combustible fluids," as used herein, means gases and liquids which are usually considered to be flammable or combustible, such as acetylene, fueloil, gasoline, kerosene, liquefied petroleum gas (LP-gas), and manufactured and natural fuel gases.

Requirements for the selection, installation, and use of the fittings covered by this Standard are included in the Standards of the National Fire ProtectionAssociation pertaining to storage and use of flammable and combustible fluids, such as:NFPA 30, Flammable and Combustible Liquids CodeNFPA 31, Installation of Oil-Burning EquipmentNFPA 32, Dry Cleaning PlantsNFPA 51, Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied ProcessesNFPA 54, National Fuel Gas CodeNFPA 58, Storage and Handling of Liquefied Petroleum Gases

Requirements for the selection, installation, and use of fittings for "Marine Use" as covered by this Standard are included in the Standard for Pleasure andCommercial Motor Craft, NFPA 302, and the appropriate publications of the American Boat and Yacht Council.

Product Details

Edition: 6th Published: 06/19/1997 Number of Pages: 24