OrificePlateType 
An ‘artefact’ that is a thin plate with a specified hole in the middle. It is usually placed in a pipe to measure the rate of fluid flow (from http://data.posccaesar.org/rdl/RDS418364).
The representation of the OrificePlateType ObjectType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | ns=1;i=1976 |
| NamespaceUri | http://opcfoundation.org/UA/DEXPI/ |
| BrowseName | OrificePlateType |
| NodeClass | ObjectType |
| IsAbstract | False |
| SubtypeOf | BaseDEXPIObjectType |
The references from the OrificePlateType ObjectType Node are shown in the following table:
| Reference | NodeClass | BrowseName | DataType | TypeDefinition | ModellingRule |
|---|---|---|---|---|---|
| HasComponent | Variable | PipingComponentNumberAssignmentClass | String | BaseDataVariableType | Optional |
| HasComponent | Variable | LowerLimitHeatTracingTemperature | Double | AnalogUnitType | Optional |
| HasComponent | Variable | HeatTracingTypeAssignmentClass | String | BaseDataVariableType | Optional |
| HasComponent | Variable | HeatTracingTypeSpecialization | HeatTracingTypeClassification | BaseDataVariableType | Optional |
| HasComponent | Variable | InsulationThickness | Double | AnalogUnitType | Optional |
| HasComponent | Variable | InsulationTypeAssignmentClass | String | BaseDataVariableType | Optional |
| HasComponent | Variable | PipingClassCodeAssignmentClass | String | BaseDataVariableType | Optional |
| HasComponent | Variable | PipingComponentNameAssignmentClass | String | BaseDataVariableType | Optional |
| HasDEXPIRelationship | ObjectType | PipeFittingType |