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AVEVA™ E3D Design

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Configuration of Hole Management Data

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  • Last UpdatedAug 14, 2025
  • 1 minute read

Additional hole size properties on piping and HVAC components are used to control automatic hole dimensions. If these properties are not provided the system uses Hole Management default sizes (for example OD for pipe holes).

The following properties are used to control automatic hole sizes.

Property Name (DKEY)

Description

AHDI

Property specifying the diameter of the hole required for the component, this is a REAL DISTANCE expression returning the hole diameter.

The property is used if:

  1. It is associated with a piping or HVAC component that clashes with the structural panel at the penetration. For example, this property may specify the outside diameter of a COUP element that represents a penetration sleeve.

  2. It is associated with a FLAN component that is adjacent to a penetration clash with pipe implied tube. Allows for a flange clearance hole to be created at the penetration.

If the AHDI property is applied, the Clearance value is ignored.

If the AHDI property is not applied, then the pipe OD + Clearance is used to calculate the hole size.

AHX

Property specifying the X dimension of a rectangular hole required for the component, this is a REAL DISTANCE expression.

The property is used if it is associated with a HVAC component that clashes with the structural panel at the penetration.

If the AHX property is applied, the Clearance value is ignored.

If the AHX property is not applied, then the component width + Clearance is used to calculate the hole size.

AHY

As for AHX, but specifies the Y or height dimension of the hole.

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