Hose Specifications

[HalcyonS]

The rating system exclusively for marine hose is known as SAE J1527 and it provides for grades as follows:

A1--fuel feed hose; has a fire resistant cover; is designed to have fuel in the hose at all times. Least permeable with highest fire resistance.

A2--fuel vent hose; has a fire resistant cover; is not designed to have fuel in the hose at all times.

B1--fuel feed hose; without fire resistant cover; is designed to have fuel in the hose at all times; intended for non-enclosed spaces. Diesel engines or above deck outboard gasoline applications.

B2--fuel vent hose; without fire resistant cover; is not designed to have fuel in the hose at all times. Diesel vent lines.


Merry Christmas

Joe
thankyou. I was interested in the specs of ethanol resistant hose.

[joe_db]

Here you go:

http://standards.sae.org/j1527_201102/

The marine fuel hose is all ethanol resistant and has been for some years. I never really dug into exactly how they tested it, but SAE apparently has a lot of publications on that.
I know the original NON ethanol rated hose my boat came with from 1973 definitely was in very bad shape when I replaced it
Please note the FIRE RESISTANCE specification. Marine fuel hose is very thick and it would take some time to burn through it. I once thought it would be cool to use all Aeroquip fuel lines like airplanes and racing cars. While out at the airport scrounging for a fitting one day the A&P asked me if I fire-sleeved all my hoses. I had not, thought about the expense and time to do so, and went back to the marine fuel hose. Also do not forget the fill and vent hoses

Joe
thankyou. I was interested in the specs of ethanol resistant hose.

[tac]

SAE Site

Thanks for the site. I've tried a few times over the years to get SAE info, especially standards, with no luck. All that I could find were Pay-To-Read, with the usual one line summary, and like many professional societies they are expensive. This one has a lot of good info, much of it free. Just browsing thru the batteries and sensors and engine control sections will keep me awake for months.