Sealing Fuel System Pipe Threads

[wandersen]

Quick question.

On AN fuel system pipe thread connections, what is standard practice for assembling these connections?

Of particular interest is the connection between an AN867 aluminum welding flange to a AN816 aluminum pipe thread to nipple.

Teflon tape is absolutely out.

On aluminum, galling is a big concern.

Permatex has several options for thread sealant. Would any of these be preferred?

http://www.permatex.com/products/product-categories/thread-compounds/thread-sealants

I couldn't find anything in AC43-13.

Thanks,

Ward

 

[Neil]

 

[wandersen]

 

[smizo]

 

[Skybolt31]

 

[wandersen]

 

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[wandersen]

 

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