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WRC 297 Limitation on Dn/Tn ratio

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sarawana

sarawana

Mechanical
Oct 10, 2020
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Nozzle load calculation as per WRC 297 always gives an error regarding the Dn/Tn ratio.

Warning - The ratio, Dn/Tn (8.166) is < 10 check the limitations of WRC bulletin 297. how to fix it by using PV Elite
 
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WRC297 only has tes results for d/t between 10 and 50, and you are outside that range.
If the thickness of the nozzle is similar to the shel thickness, then just use WRC 537.
 
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