Let’s talk about Fuel lines, what those ratings mean, how it matters, and how we have you covered for all applications.
First, lets talk about the types of fuel hoses…
Type A means that the hose is fire retardant when put under a 2 and a half minute fire test which makes it suitable for use in enclosed spaces
Type B means that the hose is not fire retardant and intended for use in non-enclosed spaces
Type 1-15 means that the hose has a permeation rate under 15 g/m² within 24 hours, 1-15 is required by the EPA for all boats built 2010 or later and any portable fuel system.
Type 1 means that the permeation rate is under 100 g/m² within 24 hours and is designed to have fuel in the hose at all times, minimum requirement of USCG for enclosed gasoline hose
Type 2 means that the permeation rate is under 300 g/m² within 24 hours and is not designed to have fuel in the hose at all times, minimum requirement of USCG for Vent and fill lines.
“Whoah wait, what does all of that mean?”
Basically, in most cases you’ll need a type A1-15 fuel hose.
In the event that no more than 5 oz. of fuel comes out of the line in 2 and a half minute’s time when:
- The hose is cut at the point of maximum drainage of fuel
- The boat is in its static floating position, and
- The fuel system is filled to capacity
If any of those exceptions are true for the application you’re looking to run line for, you may use type B1-15, which is pretty nifty.
For either application, we have a Shields hose for you! Check out our fuel feed hose lineup:
Shields Series 365 is a type A1-15, rubber-lined,barrier hose (Meets the EPA, CARB, and USCG regulations)
Shields Series 368 is another type A1-15 barrier hose, unlined. (Meets EPA, CARB, USCG, and EC regulations)
And last but not least, Shields Series 337 Silverado 4000 type B1-15, THV lined, rubber hose (Meets EPA, CARB, USCG, and EC regulations)