BEND flat oval requirements

This topic describes the specification requirements for flat oval bend (BEND) components.

Parameter description requirements

• Parameter #1 = Width

• Parameter #2 = Height

  Note:
  Where the Arrive and Leave are different sizes, additional parameters are required. Normally the Width and Height parameters can be used for both Arrive and Leave sizes.

Data set requirements

For information about data set requirements that apply for all flat oval components, refer to Flat oval component requirements.

The following requirements are in addition to the data references that are created for parameters.

** Where the Default value is set to a parameter, the Expression value must be set to the same parameter. This is applicable for all component types.

P-point requirements

For information about P-point requirements that apply for all flat oval components, refer to Flat oval component requirements.

The following table shows the additional required P-points:

* The Axis Direction (PAXI) for P-point P2 is X for 90 degree bends. For bends other than 90 degrees, the direction must be the same as the leave direction. For example, a 45 degree bend is 'X 45 Z'.

The P-points are arranged as shown in the following graphic:

Specification requirements

The following specification headings are required:

• Type (TYPE)

• Duct Shape (PSHA)

• Duct Width (PWID)

• Duct Height (PHEI)

• Angle (ANGL)

• Riser (RISE)

  Note:
  For oval rectangular, the additional heading Riser column is required to differentiate between a bend and a riser.