Non-radial nozzles can be specified by entering the angle between the vessel and nozzle centerlines, and the offset from vessel centerline. This vessel-nozzle centerline angle can vary from 0 to a limiting value depending upon specific geometry. The following figure illustrates these dimensions.
In this case the input for the offset dimension and vessel-nozzle centerline angle are optional, only required for the graphic and not for the analysis.
Hillside nozzles and some angular nozzles are subject to calculations to meet area requirements in both planes of reinforcement. In these cases CodeCalc automatically checks the area requirements in both the planes, using the corresponding lengths of the nozzle opening. For integral construction, the Code F correction factor of 0.5 will automatically be applied in the hillside direction. If the connection is pad reinforced, a value of 1.0 will be used. The F factor is used to account for the fact that the longitudinal stress is one half of the hoop stress. The use of the F factor is limited to nozzles located on cylindrical and conical sections.
