Defined in File Ifc4x3_rc1.h
IfcPump: public Ifc4x3_rc1::IfcFlowMovingDevice¶
A pump is a device which imparts mechanical work on fluids or slurries to move them through a channel or pipeline. A typical use of a pump is to circulate chilled water or heating hot water in a building services distribution system.
HISTORY New entity in IFC2x4
Type Use Definition IfcPump defines the occurrence of any pump; common information about pump types is handled by IfcPumpType. The IfcPumpType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcPumpType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcPumpType has ports or aggregated elements, such objects are reflected at the IfcPump occurrence using the IfcRelDefinesByObject relationship.
Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcPumpType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcPumpType.HasPropertySets. If both are given, then the properties directly defined at IfcPump override the properties defined at IfcPumpType. Refer to the documentation at the supertype IfcFlowMovingDevice and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: Pset_PumpOccurrence (PSET_OCCURRENCEDRIVEN) Pset_PumpPHistory (PSET_PERFORMANCEDRIVEN) Pset_PumpTypeCommon (PSET_TYPEDRIVENOVERRIDE)
Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.
Material Use Definition The material of the IfcPump is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcPumpType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:
Body: The primary material from which the object is constructed. Impeller: Material from which the impeller of the pump is constructed. In the case of a positive displacement pump, the piston acts as the impeller. Seal: Material from which the impeller shaft seal of the pump is constructed.
Port Use Definition The distribution ports relating to the IfcPump are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the pump occurrence is defined by IfcPumpType, then the port occurrences must reflect those defined at the IfcPumpType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcPump PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:
Power (ELECTRICAL, SINK): Receives electrical power. In (NOTDEFINED, SINK): Fluid entering pump. Out (NOTDEFINED, SOURCE): Fluid leaving pump.
Figure 229 illustrates pump port use. Figure 229 — Pump port use
Whether the optional attribute PredefinedType is defined for this IfcPump.
IfcPump(std::string v1_GlobalId, ::Ifc4x3_rc1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x3_rc1::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x3_rc1::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x3_rc1::IfcPumpTypeEnum::Value> v9_PredefinedType)¶