Purpose
The dialog is used to edit the dimensions, schedules and materials of cap components. The tab Component is used to select all caps for all line sizes. There is no tab for alternative caps. The tab Detail dimensions is used to view a drawing of a cap and to optionally edit the dimensions.
Description
- 'Project number', to identify the project or plant by number. The number is shown in various reports.
- 'Pipe Class', the name or number to identify the pipe class. The number is shown in various reports.
Tab sheet Component shows a list of caps per line size.
Figure: caps dialog, tab Component
The following data fields are available:
- 'Table', a list of selectable caps with the main properties. Each row represents one cap. Select one or more rows and use the other fields to set the properties.
- 'Standard', the cap standard for one or more caps.
- 'Schedule/Rating', list of available selectable schedules according the standard.
- 'Material Standard', the material standard of one cap. Use the buttons to change or remove a material standard for one or more caps. For further information see PCC material selection window.
- 'Dimension Standard', the dimension standard of one cap. Here, this standard is read-only and can not be changed, because it is the used cap standard. For further information see PCC dimension selection window.
- 'Schedule/Rating', the schedule to classify the thickness of one cap. Here, this schedule is read-only and can not be changed, because it is the used cap schedule.
- 'Thickness', the nominal wall thickness of one cap. Use this field for one or more caps. When the value is customized, the field 'Schedule/Rating' will display '...'.
- 'Tolerance', the value for the tolerance allowance of one cap. Use this field for one or more caps. To change the unit of measurement see PCC unit selection window.
- 'End type', the end type of one cap. Use this field for one or more caps.
- 'Description', the description of one cap. Use this field for one or more caps. It is initially set by the default value from the pipe class settings. For further information see PCC pipe class edit window. This field is only used for reporting.
- 'Note list', a list of notes of one cap. Use this field for one or more caps. This field is only used for reporting.
- 'Commodity code', the commodity code of one cap. Use this field for one or more caps. This field is only used for reporting.
- 'Weld joint quality factor z, E', the value for the weld joint factor of one cap. Use this field for one or more caps. The value ranges from 1 to 0. It is initially set by the default value from the pipe class settings. When you change the material, this value can change.
- 'Weld joint strength reduction W', select the material category that will set the value for the weld joint strength reduction factor W of one or more caps. The value for W ranges from 1 to 0 and is used in certain calculation codes to reduce the (weld joint) strength even further than the weld joint factor. For high design temperatures, the factor W determines the deterioration of the strength due to the temperature. This is applicable for seamless and welded caps.
- 'Coefficient Y', select the material category that will set the value for coefficient Y of one or more caps. The value for Y ranges from 0.7 to 0 and is used in certain calculation codes to calculate the minimum required thickness.
- 'Material performance factor Mf', select the material category that will set the value for factor Mf of one or more caps. The value for Mf ranges from 1 to 0 and is used in certain calculation codes to reduce the strength even further than the weld joint factor. For certain media like hydrogen, the factor Mf determines the deterioration of the strength due to the medium.
Tab sheet Detail dimensions shows the dimensions and a drawing of one cap.
Figure: caps dialog, tab Detail dimensions
The following data fields are available:
- 'Cap type', available types are:
- Ellipsoidal
- Hemispherical
- Torispherical
- Korbogen
- Kloepperform
- 'D0', outside diameter
- 't0', nominal thickness dish
- 't1', nominal thickness knuckle and cylindrical extension
- 'R0', inner radius of dish or external radius hemispherical
- 'R1', inner radius of knuckle when applicable
- 'H0', overall height of dished end or cap
- 'DistKn', distance from knuckle to bevel for reduced thickness of dish
- 'tol', thickness tolerance
The following fields are available for the drawing:
- 'Arrow', to reset the selection modus.
- 'Magnifying glass', to zoom in into the drawing.
- 'Measurement', to measure a dimension in the drawing.
- 'Save', to save the drawing to a file in DXF format.
The buttons at the bottom are:
- 'Help' button to show this help page.
- 'OK' button to close the dialog and save the data.
- 'Cancel' button to close the dialog without saving the data.
The legend is as follows:
