What's the right test plan to prove the airworthiness of a P-Seal?

[KirbyWan]

Howdy all,

I'm reviewing a test plan to replace a P-seal on an aluminum air-oil heat exchanger. It's calling for a 2000 deg flame for 5 minutes to show fire resistance. I don't think a fluorosilicone/glass fiber P-seal would survive 5 minutes at 2000 degrees and I wanted a sanity check to see if we're specifying the right test. This P-seal is on the inlet side of the air circuit. This has to go through a DER, but I don't want to shoot myself in the foot by specifying a test that we won't be able to pass and isn't really needed.

Thanks,

-Kirby

Kirby Wilkerson

Remember, first define the problem, then solve it.

 

[WKTaylor]

Ask the/a DER for advice... won't be free but will save time/effort/expense/worry overall.

Regards, Wil Taylor
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