IFC 4.3.2.20250327 (IFC4X3_ADD2) under development

7.5.3.25 IfcDuctFitting

7.5.3.25.1 Semantic definition

A duct fitting is a junction or transition in a ducted flow distribution system or used to connect duct segments, resulting in changes in flow characteristics to the fluid such as direction and flow rate.

7.5.3.25.2 Entity inheritance

7.5.3.25.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcObjectDefinition (7)
IfcObject (5)
IfcProduct (5)
IfcElement (13)
IfcDistributionElement (1)
IfcDistributionFlowElement (1)
Click to show 36 hidden inherited attributes
IfcDuctFitting (1)
9 PredefinedType OPTIONAL IfcDuctFittingTypeEnum

A list of types to further identify the object. Some property sets may be specifically applicable to one of these types.

Table 7.5.3.25.D

7.5.3.25.4 Formal propositions

Name Description
CorrectPredefinedType

Either the PredefinedType attribute is unset (e.g. because an IfcDuctFittingType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.

NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcDuctFittingTypeEnum.USERDEFINED) OR
((PredefinedType = IfcDuctFittingTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType))
CorrectTypeAssigned

Either there is no duct fitting type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcDuctFittingType.

(SIZEOF(IsTypedBy) = 0) OR
('IFC4X3_DEV_738df036.IFCDUCTFITTINGTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType))
Table 7.5.3.25.E

7.5.3.25.5 Property sets

  • Pset_Condition
    • AssessmentDate
    • AssessmentCondition
    • AssessmentDescription
    • AssessmentType
    • AssessmentMethod
    • LastAssessmentReport
    • NextAssessmentDate
    • AssessmentFrequency
  • Pset_ConstructionAdministration
    • ProcurementMethod
    • SpecificationSectionNumber
    • SubmittalIdentifer
  • Pset_ConstructionOccurence
    • InstallationDate
    • ModelNumber
    • TagNumber
    • AssetIdentifier
  • Pset_DuctFittingOccurrence
    • InteriorRoughnessCoefficient
    • HasLiner
    • Colour
  • Pset_DuctFittingPHistory
    • LossCoefficient
    • AtmosphericPressure
    • AirFlowLeakage
  • Pset_DuctFittingTypeCommon
    • Reference
    • Status
    • PressureClass
    • PressureRange
    • TemperatureRange
  • Pset_ElectricalDeviceCommon
    • RatedCurrent
    • RatedVoltage
    • NominalFrequencyRange
    • PowerFactor
    • ConductorFunction
    • NumberOfPoles
    • HasProtectiveEarth
    • InsulationStandardClass
    • IP_Code
    • IK_Code
    • EarthingStyle
    • HeatDissipation
    • Power
    • NominalPowerConsumption
    • NumberOfPowerSupplyPorts
  • Pset_ElectricalDeviceCompliance
    • ElectroMagneticStandardsCompliance
    • ExplosiveAtmosphereStandardsCompliance
    • FireProofingStandardsCompliance
    • LightningProtectionStandardsCompliance
  • Pset_ElementKinematics
    • CyclicPath
    • CyclicRange
    • LinearPath
    • LinearRange
    • MaximumAngularVelocity
    • MaximumConstantSpeed
    • MinimumTime
  • Pset_EnergyRequirements
    • EnergyConsumption
    • PowerDemand
    • EnergySourceLabel
    • EnergyConversionEfficiency
  • Pset_EnvironmentalCondition
    • ReferenceAirRelativeHumidity
    • ReferenceEnvironmentTemperature
    • MaximumAtmosphericPressure
    • StorageTemperatureRange
    • MaximumWindSpeed
    • OperationalTemperatureRange
    • MaximumRainIntensity
    • SaltMistLevel
    • SeismicResistance
    • SmokeLevel
    • MaximumSolarRadiation
  • Pset_EnvironmentalEmissions
    • CarbonDioxideEmissions
    • SulphurDioxideEmissions
    • NitrogenOxidesEmissions
    • ParticulateMatterEmissions
    • NoiseEmissions
  • Pset_EnvironmentalImpactIndicators
    • Reference
    • FunctionalUnitReference
    • IndicatorsUnit
    • LifeCyclePhase
    • ExpectedServiceLife
    • TotalPrimaryEnergyConsumptionPerUnit
    • WaterConsumptionPerUnit
    • HazardousWastePerUnit
    • NonHazardousWastePerUnit
    • ClimateChangePerUnit
    • AtmosphericAcidificationPerUnit
    • RenewableEnergyConsumptionPerUnit
    • NonRenewableEnergyConsumptionPerUnit
    • ResourceDepletionPerUnit
    • InertWastePerUnit
    • RadioactiveWastePerUnit
    • StratosphericOzoneLayerDestructionPerUnit
    • PhotochemicalOzoneFormationPerUnit
    • EutrophicationPerUnit
  • Pset_EnvironmentalImpactValues
    • TotalPrimaryEnergyConsumption
    • WaterConsumption
    • HazardousWaste
    • NonHazardousWaste
    • ClimateChange
    • AtmosphericAcidification
    • RenewableEnergyConsumption
    • NonRenewableEnergyConsumption
    • ResourceDepletion
    • InertWaste
    • RadioactiveWaste
    • StratosphericOzoneLayerDestruction
    • PhotochemicalOzoneFormation
    • Eutrophication
    • LeadInTime
    • Duration
    • LeadOutTime
  • Pset_FittingBend BEND
    • BendAngle
    • BendRadius
  • Pset_FittingJunction JUNCTION
    • JunctionType
    • JunctionLeftAngle
    • JunctionLeftRadius
    • JunctionRightAngle
    • JunctionRightRadius
  • Pset_FittingTransition TRANSITION
    • NominalLength
    • EccentricityInY
    • EccentricityInZ
  • Pset_InstallationOccurrence
    • InstallationDate
    • AcceptanceDate
    • PutIntoOperationDate
  • Pset_MaintenanceStrategy
    • AssetCriticality
    • AssetFrailty
    • AssetPriority
    • MonitoringType
    • AccidentResponse
  • Pset_MaintenanceTriggerCondition
    • ConditionTargetPerformance
    • ConditionMaintenanceLevel
    • ConditionReplacementLevel
    • ConditionDisposalLevel
  • Pset_MaintenanceTriggerDuration
    • DurationTargetPerformance
    • DurationMaintenanceLevel
    • DurationReplacementLevel
    • DurationDisposalLevel
  • Pset_MaintenanceTriggerPerformance
    • TargetPerformance
    • PerformanceMaintenanceLevel
    • ReplacementLevel
    • DisposalLevel
  • Pset_ManufacturerOccurrence
    • AcquisitionDate
    • BarCode
    • SerialNumber
    • BatchReference
    • AssemblyPlace
    • ManufacturingDate
  • Pset_ManufacturerTypeInformation
    • GlobalTradeItemNumber
    • ArticleNumber
    • ModelReference
    • ModelLabel
    • Manufacturer
    • ProductionYear
    • AssemblyPlace
    • OperationalDocument
    • SafetyDocument
    • PerformanceCertificate
  • Pset_RepairOccurrence
    • RepairContent
    • RepairDate
    • MeanTimeToRepair
  • Pset_Risk
    • RiskName
    • RiskType
    • NatureOfRisk
    • RiskAssessmentMethodology
    • UnmitigatedRiskLikelihood
    • UnmitigatedRiskConsequence
    • UnmitigatedRiskSignificance
    • MitigationPlanned
    • MitigatedRiskLikelihood
    • MitigatedRiskConsequence
    • MitigatedRiskSignificance
    • MitigationProposed
    • AssociatedProduct
    • AssociatedActivity
    • AssociatedLocation
  • Pset_ServiceLife
    • ServiceLifeDuration
    • MeanTimeBetweenFailure
  • Pset_SoundGeneration
    • SoundCurve
  • Pset_Tolerance
    • ToleranceDescription
    • ToleranceBasis
    • OverallTolerance
    • HorizontalTolerance
    • OrthogonalTolerance
    • VerticalTolerance
    • PlanarFlatness
    • HorizontalFlatness
    • ElevationalFlatness
    • SideFlatness
    • OverallOrthogonality
    • HorizontalOrthogonality
    • OrthogonalOrthogonality
    • VerticalOrthogonality
    • OverallStraightness
    • HorizontalStraightness
    • OrthogonalStraightness
    • VerticalStraightness
  • Pset_Uncertainty
    • UncertaintyBasis
    • UncertaintyDescription
    • HorizontalUncertainty
    • LinearUncertainty
    • OrthogonalUncertainty
    • VerticalUncertainty
  • Pset_Warranty
    • WarrantyIdentifier
    • WarrantyStartDate
    • IsExtendedWarranty
    • WarrantyPeriod
    • WarrantyContent
    • PointOfContact
    • Exclusions
  • Qto_BodyGeometryValidation
    • GrossSurfaceArea
    • NetSurfaceArea
    • GrossVolume
    • NetVolume
    • SurfaceGenusBeforeFeatures
    • SurfaceGenusAfterFeatures
  • Qto_DuctFittingBaseQuantities
    • Length
    • GrossCrossSectionArea
    • NetCrossSectionArea
    • OuterSurfaceArea
    • GrossWeight

7.5.3.25.6 Concept usage

Concept Usage Description
IfcRoot (2)
IfcObjectDefinition (9)
IfcObject (5)
IfcProduct (18)
IfcElement (44)
IfcDistributionElement (4)
IfcDistributionFlowElement (4)
IfcFlowFitting (1)
Click to show 87 hidden inherited concepts
IfcDuctFitting (6)
Material Set General

This concept can be applied to the following resources:

  • Casing - Material from which the duct fitting is constructed.
  • Coating - The outer coating, if applicable.
  • Insulation - The insulating wrapping, if applicable.
  • Lining - The inner lining, if applicable.
Object Typing General

This concept can be applied to the following resources:

Port Nesting General

This concept can be applied with the following combinations:

PortName Flow PredefinedType Description
Inlet SINK NOTDEFINED No description available.
Outlet SOURCE NOTDEFINED No description available.
Inlet SINK CONNECTOR No description available.
Outlet SOURCE NOTDEFINED No description available.
Outlet SOURCE NOTDEFINED No description available.
Inlet SINK EXIT No description available.
Inlet SINK JUNCTION No description available.
Outlet#1 SOURCE JUNCTION No description available.
Outlet#2 SOURCE JUNCTION No description available.
Inlet SINK NOTDEFINED No description available.
Outlet SOURCE NOTDEFINED No description available.
Table 7.5.3.25.G
Property Sets for Objects General

This concept can be applied to the following resources:

Quantity Sets General

This concept can be applied to the following resources:

Property Sets for Performance General

This concept can be applied to the following resources:

Table 7.5.3.25.F

7.5.3.25.7 Formal representation

ENTITY IfcDuctFitting
SUBTYPE OF (IfcFlowFitting);
PredefinedType : OPTIONAL IfcDuctFittingTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcDuctFittingTypeEnum.USERDEFINED) OR
((PredefinedType = IfcDuctFittingTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR
('IFC4X3_DEV_738df036.IFCDUCTFITTINGTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

7.5.3.25.8 References

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7.5.3.25.9 Changelog

7.5.3.25.9.1 IFC4

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