Aircraft hose assemblies that are located partially or totally in "Fire Zones" must have fire protection.It is a good idea to provide fire protection for any hose that is located in proximity to any exhaust carrying component. An interesting example is in the Piper Cherokee aircraft where Piper routed the hose next to the exhaust system. Firesleeve does not raise the temperature rating of the hose - it provides fire protection only. In the event of a fire it guarantees the hose will not fail for a minimum of 15 minutes when exposed to direct flame. It is engineered to give a pilot a short window to get the aircraft on the ground before failed hoses compound a potential lethal situation. In tight engine compartments one must also keep the hose away from the exhaust system. A hose in direct contact with the exhaust system will be exposed to excessive temperature and could fail.Firesleeve, especially the integral type firesleeve provides some chafe protection for the hose. Firesleeve should be cut a little longer than the hose, especially for larger diameter hoses or hoses with bends. The firesleeve application chart below shows what size firesleeve to use. Firesleeve part number is AE102-size.
Fire Protection & Fire Sleeving
CERTIFIED WELDING
SECTION IX ANSI B31.1 / B31.3
AWS D17.1
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•Firesleeve clamps require a pulling tool.•We recommend you seal the end of the firesleeve with End Dip (AE13702-003). This prevents any fluids from wicking into the firesleeve, and improves appearance.•Firesleeve should extend slightly (1/8 inch) beyond fitting socket but not interfere with free nut rotation. This extension helps shield the fitting in case of fire. On this hose, the Firesleeve was cut too short and slipped back when the hose was bent during installation. Always cut the firesleeve slightly longer than the hose. The larger the hose diameter or the more bend in the hose, the longer the firesleeve.
Aircraft hose assemblies that are located partially or totally in "Fire Zones" must have fire protection.It is a good idea to provide fire protection for any hose that is located in proximity to any exhaust carrying component. An interesting example is in the Piper Cherokee aircraft where Piper routed the hose next to the exhaust system. Firesleeve does not raise the temperature rating of the hose - it provides fire protection only. In the event of a fire it guarantees the hose will not fail for a minimum of 15 minutes when exposed to direct flame. It is engineered to give a pilot a short window to get the aircraft on the ground before failed hoses compound a potential lethal situation. In tight engine compartments one must also keep the hose away from the exhaust system. A hose in direct contact with the exhaust system will be exposed to excessive temperature and could fail.Firesleeve, especially the integral type firesleeve provides some chafe protection for the hose. Firesleeve should be cut a little longer than the hose, especially for larger diameter hoses or hoses with bends. The firesleeve application chart below shows what size firesleeve to use. Firesleeve part number is AE102-size.
Fire Protection & Fire Sleeving
•Firesleeve clamps require a pulling tool.•We recommend you seal the end of the firesleeve with End Dip (AE13702-003). This prevents any fluids from wicking into the firesleeve, and improves appearance.•Firesleeve should extend slightly (1/8 inch) beyond fitting socket but not interfere with free nut rotation. This extension helps shield the fitting in case of fire. On this hose, the Firesleeve was cut too short and slipped back when the hose was bent during installation. Always cut the firesleeve slightly longer than the hose. The larger the hose diameter or the more bend in the hose, the longer the firesleeve.