#### 6.2.3.3 IfcDistributionFlowElementType

| Type d'élément de distribution de fluide
| Komponente der TGA (allgemein) - Typ

The element type IfcDistributionFlowElementType defines a list of commonly shared property set definitions of an element and an optional set of product representations. It is used to define an element specification (the specific product information that is common to all occurrences of that product type).

Distribution flow element types (orthe instantiable subtypes) may be exchanged without being already assigned to occurrences.

The occurrences of the IfcDistributionFlowElementType are represented by instances of IfcDistributionFlowElement or its subtypes.

> HISTORY New entity in IFC2x2.

> IFC4 CHANGE Ports may now be defined using IfcRelNests to enable definition of ports at type definitions (both forward and backward compatible), provide a logical order, and reduce the number of relationship objects needed. The relationship IfcRelConnectsPortToElement is still supported on occurrence objects, however is now specific to dynamically connected ports.

XSD Specification:

<xs:element name="IfcDistributionFlowElementType" type="ifc:IfcDistributionFlowElementType" abstract="true" substitutionGroup="ifc:IfcDistributionElementType" nillable="true"/>
<xs:complexType name="IfcDistributionFlowElementType" abstract="true">
<xs:complexContent>
<xs:extension base="ifc:IfcDistributionElementType"/>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcDistributionFlowElementType

| ABSTRACT SUPERTYPE OF(ONEOF(IfcEnergyConversionDeviceType, IfcFlowControllerType, IfcFlowFittingType, IfcFlowMovingDeviceType, IfcFlowSegmentType, IfcFlowStorageDeviceType, IfcFlowTerminalType))

| SUBTYPE OF (IfcDistributionElementType);

END_ENTITY;

Inheritance Graph:

ENTITY IfcDistributionFlowElementType

| ENTITY IfcRoot

GlobalId | : | IfcGloballyUniqueId;
OwnerHistory | : | OPTIONAL IfcOwnerHistory;
Name | : | OPTIONAL IfcLabel;
Description | : | OPTIONAL IfcText;

| ENTITY IfcObjectDefinition

| INVERSE

HasAssignments | : | SET OF IfcRelAssigns FOR RelatedObjects;
Nests | : | SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy | : | SET OF IfcRelNests FOR RelatingObject;
HasContext | : | SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy | : | SET OF IfcRelAggregates FOR RelatingObject;
Decomposes | : | SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations | : | SET OF IfcRelAssociates FOR RelatedObjects;

| ENTITY IfcTypeObject

ApplicableOccurrence | : | OPTIONAL IfcStrippedOptional;
HasPropertySets | : | OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

| INVERSE

Types | : | SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

| ENTITY IfcTypeProduct

RepresentationMaps | : | OPTIONAL LIST [1:?] OF UNIQUE IfcStrippedOptional;
Tag | : | OPTIONAL IfcStrippedOptional;

| INVERSE

ReferencedBy | : | SET OF IfcRelAssignsToProduct FOR RelatingProduct;

| ENTITY IfcElementType

ElementType | : | OPTIONAL IfcStrippedOptional;

| ENTITY IfcDistributionElementType

| ENTITY IfcDistributionFlowElementType

END_ENTITY;

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