In order for corrosion to result from two dissimilar metals in contact there
must also be a conductive medium, also called an electrolyte, present in
contact with both metals. Avgas and mogas are non-ionic liquids that are
non-conductive. Ergo, no corrosion will result in your example. That said,
there is a small (with emphasis on small) risk that there may be atmospheric
conditions conducive to corrosion, and this is especially true if your
aircraft is parked for an extended period near salt water where there will
be airborne salt spray, which we all know is a corrosive medium.
In the case of brass and aluminum it will be the aluminum that gets damaged
---From corrosion.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airframe complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of SteveD
Subject: Europa-List: Brass to aluminum
What are the dissimulator metal rules for fittings. I have brass fittings in
aluminum for the fuel system. Then I was thinking that might not be such a
good idea. I searched gascolator in the photo gallery and saw all of them
had aluminum fittings and all of them had a brass drain valves.
Thanks,
steved
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