About Basic Properties

Add the basic properties of a duct using the properties palette.

By default, Basic properties are displayed in the Duct Properties palette.

Note: In the following tables, properties related to adding a duct are preceded by an asterisk (*), properties related to flexible duct are preceded by double asterisks (**) and properties related to duct fittings are preceded by triple asterisks (***). These properties are only available when you add the respective object.
General Action Selections

Description

Describes the duct part (optional).

 

System

Selects a system definition for the duct object in the current drawing.

Standard (default); selections derived from the catalog

***Part

Click the image next to part to open the Select a Part dialog box.  
***Current Size

Choose one of the sizes proposed in the drop-down menu. All sizes are standardized.

 
 

General User Interface for Duct fittings

  
Dimensions Action Selections
Routing preference Selects a routing preference for the duct object in the current drawing. Standard (default); selections derived from the catalog
Shape Specifies the shape for the selected object. Rectangular (default); thereafter last used shape
Size Selects a size within the range specified in the current routing preference. There are different default size parameters, depending on the selected shape.
  • Oval - Width and Height
  • Rectangular - Width and Height
  • Round - Diameter
Last used value selected
Calculate Size Calculates the sizes of the duct based on the Flow Rate, Friction, Roughness and Density. If a rectangular or oval shape is selected, one size has to be fixed to calculate the other one.
Note: For more information, see Duct Size Calculator.
 

Size lock

Prevents the size value from being changed.

  • Unlocked (default)
  • Locked
***Connections Customize the sizes of the fitting you want to add.  
*Flow Rate Flow Rate is read from MvParts that are connected to the Duct Run or can be entered. 0 (default). Flow Rate will be automatically refreshed if the Duct is connected to a MvPart.
*Friction Shows the value for friction of the selected object based on the definition in the Duct System Definitions section in the Style Manager (Read-only).  
*Velocity Shows the value for velocity of the selected object based on the definition in the Duct System Definitions section in the Style Manager (Read-only).  

Cut Length

If Yes is specified, then Cut Length lets you specify a dimension. Selecting No hides the Cut Length property.

No (default)

Placement Action Selections

Elevation

Specifies a Z value (elevation) above or below the XY plane of the current user coordinate system (UCS).

0 (default), thereafter last used elevation

Elevation lock

Prevents objects of one elevation from snapping to objects of another elevation.
  • Unlocked (default)
  • Locked

Start elevation

Specifies an elevation for connector 1 on the duct object. Start elevation is the same value as Elevation.

0 (default)

Justification Action Selections

Justify

Orientates the justification of the duct object.

  • Top Left
  • Top Center
  • Top Right
  • Center (default)
  • Center Left
  • Center Right
  • Bottom Left
  • Bottom Center
  • Bottom Right

Horizontal offset

Specifies a placement offset in the horizontal direction from the insertion point.

0 (default); thereafter last used value

Vertical offset

Specifies a placement offset in the vertical direction from the insertion point.

0 (default); thereafter last used value

Routing Action Selections

*Bend method

Select the desired Bend method. Choose either Elbow, Offset or Transition Offset.

  • Elbow (default)
  • Offset
  • Transition - Offset

*Bend method lock

Prevents the bend method from being changed. If you do not lock the offset or transition - offset bend method, then the setting reverts to elbow after one instance of the selected bend method is inserted in the duct run.

Note: Appears only if the offset or transition - offset is chosen.
  • Unlocked (default)
  • Locked

*Bend angle

Specifies the angle to constrain the routing in the duct run.

The bend angle varies, depending on the values that are defined in the catalog content.

*Bend angle lock

Prevents the bend angle from being changed. The Bend angle lock button appears only for user defined angles.

  • Unlocked (default)
  • Locked

**Segment

Specifies the layout method for the flexible duct.

  • Line
  • Arc
  • Spline

**Radius factor

If Line is selected for Segment, radius factor lets you specify a radius value.

 

*Branch fitting

Specifies the way to connect ducts.

  • Takeoff
  • Tee

Related Concepts

Related Tasks