Does Section VIII, App 24 apply to Tri-Clamp Ferrules?

[BradSr]

Our AI is questioning our use of SA479 Tri-Clamp Ferrules in code vessels. He sighted code case 2148, which as far as I can tell deals only w/Nozzle Necks.

Anybody having some insight, I would deeply appreciate the help.

BradSr

 

[BradSr]

As I suspected, no one likes this post. I wish we were through with it. Hopefully I will have answers from our AI.

 

[unclesyd]

Have you thought about contacting Alfa-Laval?

 

[BradSr]

We have worked it out through our AI. Under App-24 we are treating the flange facing as a hub due to the clamp taking the stress vs. bolts integral to a std bolted flange.

 

[arto]

There's the thing about failure of 1 fastener being catastrophic - Grayloc's have 2 each side