Nozzle - General Information

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Last updated: Sept 29, 2022 by Jordyn HaydenVersion comment
4 min read

Last Updated: 2021.9

Configuration

Description: The label given for the component. It will appear in the component pane, the report dialog, the summary pane, and at the top of the component report. This will default to the component type and component number. For example, the third nozzle for the vessel will start with a description of Nozzle 3.  Selecting a fitting on the Design Info tab, will fill in this field; but the description can still be overwritten by the user.

Nozzle Purpose: Select a nozzle type from the drop-down menu or type one into the field. This is included for the user's reference and does not affect the calculations in the software.

Mark: A shorthand reference for the component. It will also appear in the component report. The default entry will be an abbreviation of the component type and the component number. For example, the second jacket shell for the vessel will start with a mark SJ2.

Nozzle ID Number: This field is for user reference when inside the nozzle form; it will not appear anywhere else. The default value is the component number (e.g., if this is the fourth nozzle, the value will be four).

Host: Select the host type for the nozzle.

Detail Requirements: Because the wording in the code allows multiple interpretations, this allows the user to choose whether the weld detail requirements per UW-16 should be met in the corroded condition, the new condition, or both.

Nozzle Configuration: Select the basic nozzle attachment configuration from the drop-down menu.

Nozzle Location

The following fields only affect the 3D drawing; they do not have an effect on the calculations or the output.

Distance from Reference Line: For nozzles in cylindrical shells, this indicates the distance from the reference line datum measured along the axis of the vessel. For nozzles in nozzles, this is the axial distance of the second nozzle from the first nozzle's intersection with its host. For example, if a cylindrical nozzle is attached to a cylindrical shell and a second nozzle is attached to the cylindrical nozzle, the distance from reference line will be the distance from the axis of the second nozzle to the location where the cylindrical nozzle intersects the shell.

Distance from Center of Head/Flange: This indicates the distance from the center of the head or flange to where the nozzle axis pierces the inside surface; the distance is measured parallel to the axis of the head or flange and does not indicate direction.

Nozzle Orientation: Determines the position of the nozzle around the component. Vertical vessels in the standard view will show a nozzle at 0° on the front of the vessel, 90° on the right side of the vessel, and so on. Horizontal vessels in the standard view will show a nozzle at 0° on the top of the vessel, 90° on the back of the vessel, and so on. The angle is determined based on where the nozzle axis penetrates the inside surface of the host.


Longitudinal Angle of Orientation: For nozzles in shells, this describes the angle between the nozzle axis and the axis of the shell. A 90° angle indicates that the nozzle is not tilted; an angle less than 90° tilts toward the left end or top of the shell while an angle greater than 90° indicates a tilt toward the right end or bottom of the shell. When the nozzle is tangential, this field will be locked to 90°.

For nozzles attached to flat heads and blind flanges, this describes the angle the nozzle makes with the head axis; 0° is parallel to the head axis. If the nozzle is tangential, this value will be locked to zero.

Meridian Angle of Orientation: For nozzles in flat heads, dished heads, and blind flanges, the meridian angle rotates the nozzle axis around a line that goes from the center of the head to the edge of the head and passes through the nozzle axis. With a view starting at the center of the head and looking toward the direction of nozzle orientation, 0 ° is radial, a negative angle rotates the nozzle to the right, and a positive angle rotates the nozzle to the left.

For nozzles in elliptical heads, this value will be locked to zero if the nozzle is a tangential configuration.

Latitudinal Angle of Orientation: For nozzles in dished heads, this rotates the nozzle axis around a line that is concentric with the head and passes through the nozzle axis; 0° is radial, a positive angle rotates the nozzle towards the edge of the head, and a negative angle rotates the nozzle towards the center of the head.

For nozzles in elliptical heads, this value will be locked to zero unless the nozzle is a tangential configuration.

Circumferential Angle of Orientation: Represents the angle of rotation created between the tangential nozzle axis and a radial equivalent nozzle axis. A positive value will tilt the nozzle to the right for a vertical vessel in standard view and to the back for a horizontal vessel in standard view. This field is tied to "Dimension L" on the Design Info tab.

Show with Repad: Select this box to add a repad to the nozzle.

Groove Location: Determines the groove well depth label on the report.

Consider Insert for Reinforcement Calculations If Applicable: Checking this box will consider the part of the nozzle neck inserted past the outside of the host wall for UW-16.1(k) and Partial Penetration configurations. The consideration takes place in the area of reinforcement calculations.  This checkbox defaults as unchecked.

Reference UG-44(a) with UG-45: Checking this box will add reference to UG-44(a)  in the summary section on the first page of the nozzle report and also in the nozzle neck thickness calculation section on the second page of the nozzle report.