Use of Banjo Fittings in Diesel Fuel systems

[KiwiME]

A banjo fitting normally has the threads wetted by the media passing through the fitting.

My concern is that in a very clean system, e.g diesel fuel (post-filter) there is some possibility that debris from the (aluminum) threads may contaminate the system if it is not carefully flushed.

Comments appreciated.

 

[Majik]

buy new ones if you have rusty old ones... yes there's a possibility but it's quite remote. you can always replace it with a 90* fitting and a hose end if your worried but diesel and aluminum are friends

 

[KiwiME]

I guess I wasn't clear - the question is theoretical. I was looking more for design direction as to if thread-wetted fittings are considered acceptable in modern fuel systems, or whether they should be avoided to reduce the risk of contamination.

 

[Fabrico]

Post-filter banjo fittings are fairly common on Diesel engines. With qood quality control it should not be a problem.