Purpose

The dialog is used to edit the dimensions, schedules and materials of eccentric reducer components. The tab Component is used to select all eccentric reducers for all line sizes. There is no tab for alternative eccentric reducers. The tab Detail dimensions is used to view a drawing of an eccentric reducer 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 eccentric reducers per line size.

Figure: eccentric reducers dialog, tab Component

The following data fields are available:

  • 'Table', a table of selectable eccentric reducers with the main properties. Each cell represents one eccentric reducer and only shows the schedule. Select one or more cells and use the other fields to set the properties.
  • 'Standard', the reducer standard for one or more eccentric reducers.
  • 'Schedule/Rating', list of available selectable schedules according the standard. 
  • 'Material Standard', the material standard of one eccentric reducer. Use the buttons to change or remove a material standard for one or more eccentric reducers. For further information see PCC material selection window.
  • 'Dimension Standard', the dimension standard of one eccentric reducer. Here, this standard is read-only and can not be changed, because it is the used reducer standard. For further information see PCC dimension selection window.
  • 'Schedule/Rating', the schedule to classify the thickness of one eccentric reducer. Here, this schedule is read-only and can not be changed, because it is the used reducer schedule.
  • 'Thickness', the nominal wall thickness of one eccentric reducer (large end). Use this field for one or more eccentric reducers. When the value is customized, the field 'Schedule/Rating' will display '...'.
  • 'Tolerance', the value for the tolerance allowance of one eccentric reducer. Use this field for one or more eccentric reducers. To change the unit of measurement see PCC unit selection window.
  • 'End type', the end type of one eccentric reducer. Use this field for one or more eccentric reducers. 
  • 'Description', the description of one eccentric reducer. Use this field for one or more eccentric reducers. 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 eccentric reducer. Use this field for one or more eccentric reducers. This field is only used for reporting.
  • 'Commodity code', the commodity code of one eccentric reducers. Use this field for one or more eccentric reducers. This field is only used for reporting.
  • 'Weld joint quality factor z, E', the value for the weld joint factor of one eccentric reducer. Use this field for one or more eccentric reducers. 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 eccentric reducers. 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 reducers.
  • 'Coefficient Y', select the material category that will set the value for coefficient Y of one or more eccentric reducers. 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 eccentric reducers. 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 eccentric reducer.

Figure: eccentric reducers dialog, tab Detail dimensions

The following data fields are available:

  • 'Bell Shape', option for knuckles with radius. Check to activate.
  • 'D00', outside diameter large end.
  • 'D01', outside diameter tapered section large end.
  • 'D10', outside diameter small end.
  • 'D11', outside diameter tapered section small end.
  • 'L00', overall length.
  • 'L01', tapering length large end. This is necessary for tapering.
  • 'L11', tapering length small end. This is necessary for tapering.
  • 'L20', conical section length.
  • 't00', nominal thickness cylinder large end.
  • 't01', nominal thickness tapering large end. This is necessary for tapering.
  • 't10', nominal thickness cylinder small end.
  • 't11', nominal thickness tapering small end. This is necessary for tapering.
  • 'R0', inside radius knuckle large end.
  • 'R1', outside radius knuckle small end.
  • '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: