#### 6.2.3.15 IfcFlowSegmentType

| Type de tronçon d'installation fluides
| Verteiler (allgemein) - Typ

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

A flow segment type is used to define the common properties of a flow segment that may be applied to many occurrences of that type. A flow segment is a section of a distribution system, such as a duct, pipe, or conduit, that typically has only two ports. Flow segment types (or the instantiable subtypes) may be exchanged without being already assigned to occurrences.

Occurrences of the IfcFlowSegmentType are represented by instances of IfcFlowSegment or its subtypes.

> HISTORY New entity in IFC2x2.

Material Use Definition

The material of the IfcDistributionFlowSegmentType is defined using one of the following entities:

- IfcMaterialProfileSet : This defines the material cross section which may be used to generate the 'Body' representation at occurrences (for parametric definitions not having representation), or for analysis purposes.
- IfcMaterialConstituentSet : For elements containing multiple materials where profiles are not applicable, this indicates materials at named aspects.
- IfcMaterial : For elements comprised of a single material where profiles are not applicable, this indicates the material.

XSD Specification:

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

EXPRESS Specification:

ENTITY IfcFlowSegmentType

| ABSTRACT SUPERTYPE OF(IfcPipeSegmentType)

| SUBTYPE OF (IfcDistributionFlowElementType);

END_ENTITY;

Inheritance Graph:

ENTITY IfcFlowSegmentType

| 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 IfcRepresentationMap;
Tag | : | OPTIONAL IfcStrippedOptional;

| INVERSE

ReferencedBy | : | SET OF IfcRelAssignsToProduct FOR RelatingProduct;

| ENTITY IfcElementType

ElementType | : | OPTIONAL IfcStrippedOptional;

| ENTITY IfcDistributionElementType

| ENTITY IfcDistributionFlowElementType

| ENTITY IfcFlowSegmentType

END_ENTITY;

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