Lots of vintage aircraft use brass fittings in the fuel system. What specific application in the fuel system are you referring to?
I suspect that the bigger ones are what caused their bad reputation; the wall thickness vs total size tends to suffer as they get larger. Brass wouldn't scare me if I could make sure it wasn't 'stressed' by static loads, and vibration wasn't an issue. Using one on an engine does get a little more dicey. A fried just lost a Cessna 195 to a brass 'L' in the oil system (a certified part, BTW).
If you're really concerned, you can probably get the same part as an A/N fitting in your choice of materials, or at least a stainless plumbing part.
Charlie
Coming out of the fuel tank, between the fuel pre-filter and the fuel pumps. A brass T coming off the filter, then going to the pumps via a hose barb. All safety wired.
Coming out of the fuel tank, between the fuel pre-filter and the fuel pumps. A brass T coming off the filter, then going to the pumps via a hose barb. All safety wired.
Brass and fuel? No, no problem there - just that the brass is not as strong as a steel or aluminum AN fitting under vibration.
its not the life expectancy of brass using fuel. Its the hose, and what the additives may do the the hose liner. Brass was used for years, and still is in some cases. BUT----things do change---
Tom
The fuel line for the low pressure side and return line is fine. But we are looking for fire sheathed type lines for the FWF.
Any suggestions?
Call the guy who's been responding - Tom S. at TS Flightlines. It's what he does, and he does it darn well. Lots of us flying with his gear.
Local DAR said "pull them out!". Replace with aluminum fittings.