MEP Element IFC2x3 / IFC4

IfcDuctSegment

What is IfcDuctSegment?

IfcDuctSegment represents a straight or curved section of ductwork that carries conditioned air, exhaust, or ventilation air within an HVAC system. Duct segments connect to other segments, fittings, and terminals to form a complete air distribution network.

Hierarchy

Inherits from: IfcFlowSegment

Common Properties

Properties commonly found on IfcDuctSegment elements in IFC models.

ReferenceNominalDiameterNominalWidthNominalHeight

Property Sets

Standard IFC property sets associated with IfcDuctSegment.

Pset_DuctSegmentTypeCommon
Qto_DuctSegmentBaseQuantities

Real-World Usage

Duct routing is one of the most space-intensive MEP systems and a frequent source of coordination conflicts. Construction teams verify duct clearances against structural elements and track insulation installation by zone.

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Related Entity Types

MEP Element

IfcAirTerminal

IfcAirTerminal represents a device that supplies or extracts air from a space, such as diffusers, grilles, registers, and exhaust vents. Air terminals are the visible endpoints of the HVAC ductwork system and directly affect room air distribution patterns and comfort.

MEP Element

IfcFan

IfcFan represents a mechanical device that moves air through a ductwork system. Fans are used in air handling units, exhaust systems, smoke control systems, and standalone ventilation equipment. They create the pressure differential that drives airflow through the HVAC system.

Abstract Type

IfcFlowFitting

IfcFlowFitting is the abstract supertype for connection elements between flow segments — elbows, tees, reducers, transitions, and other fittings that join or redirect sections of duct, pipe, or cable tray.

MEP Element

IfcFlowSegment

IfcFlowSegment represents a straight or curved section of a distribution system that carries fluid, air, or energy from one point to another. This is the parent type for duct segments, pipe segments, and cable segments.