QUESTION
I’m designing a pressure vessel on saddle supports with nozzle at shell and heads. The nozzle is located at knuckle region of the torispherical head. I´ve calculated the nozzle geometry and it doesn´t need a reinforcement. But my question is: Is there a section on the code that suggests nozzle reinforcement when it is located at knuckle region of the head?
REPLIES
DSB123
The knuckle region of a vessel is highly stressed and placing a nozzle in that region is not recommended. In fact PD5500 does not allow a nozzle to be placed within the knuckle region and specifies a distance within which a nozzle is not allowed.
SOURCE
https://www.eng-tips.com/viewthread.cfm?qid=278173
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