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When there are multiple thermal or operating loads acting on a nozzle.
When the d/D ratio for a loaded nozzle is greater than 0.5 and WRC 107 or 297 is considered for use.
When the t/T ratio for a loaded nozzle is less than 1.0 and WRC 107 or 297 is considered for use.
When the nozzle is pad reinforced and WRC 107 or 297 is considered for use.
When there are loads acting on a nozzle and pipe simultaneously.
When pad-reinforced lugs, clips, or other support are placed on the knuckle radius of a dished head and WRT 107 methods are fraught with potential errors.
When seismic horizontal loads on vessel clips or box supports are to be evaluated.
When evaluating large run moments, but small branch moments in a piping systemthe analyst needs to run various model types, comparing results to determine the stability and accuracy of the solution.
When there are overturning moments on skirts.
When there are different thermal expansion coefficients or temperatures between the header and branch.
When horizontal vessels are saddle supported, with or without wear plates, as well as tapered saddles with many design options.
When evaluating the effects of axial or transverse loads due to internal sloshing, wind loads, seismic loads, or general external loads and when the Zick method does not consider either axial or transverse loads.
When designing pipe shoes for self-weight, liquid weight and axial loads
& many more.
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