Is WRC 107 on Tangential Nozzles ? 1

kapilengtips · May 17, 2010

I have a tangential nozzles welded to a pressure vessel.

I have to calculate the local stresses at nozzle / shell interface. Is WRC 107 applicable for tangential attachement ?

If not, is there any other easy way to determin local stresses.

Thanks,

K Nandwana
EWI

kapilengtips · May 17, 2010

There was a typo on subject line. It should have read 'Is WRC 107 applicable on Tangential Nozzles ?'

Christine74 · May 17, 2010

No. WRC bulletins 107 and 297 do not cover hillside or tangential nozzles. The only alternative is FEA. It seems that most fabricators these days are using NozzlePro for situations like this.

http://www.paulin.com/WEBfe107-1.aspx

-Christine

Crompto29 · May 19, 2010

PD 5500 Appendix G may help you. It is similar to WRC 107.

It has rules for long doubler pads (which is similar a to tengential nozzle). You'll have to put your thinking hat on and read the appendix carefully to decide if your tangential nozzle is equivilant to a long doubler pad.

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Is WRC 107 on Tangential Nozzles ? 1

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