ISA 5.1 symbol
exported equivalent COPI_0000146
Restriction Orifice
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000146
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
A restriction orifice is a flow modification accessory that bears the function to restrict fluid flow by creating controlled pressure drop through geometric constriction.
PT-BR
Um orifício de restrição é um acessório de modificação de fluxo que possui a função de restringir o fluxo de fluido criando queda de pressão controlada através de constrição geométrica.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every restriction orifice is a flow modification accessory that bears a flow restriction function
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (RestrictionOrifice(x) ↔ FlowModificationAccessory(x) ∧ ∃f (FlowRestrictionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: FlowRestrictionFunction]∀f (FlowRestrictionFunction(f) → ∀p (realizedIn(f,p) → FlowRestrictionProcess(p)) ∧ ∃p (FlowRestrictionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((RestrictionOrifice(x) ∧ FlowRestrictionFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,PressureReduction)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: RestrictionOrifice <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :FlowRestrictionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :FlowRestrictionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :FlowRestrictionProcess ] ; rdfs:label "flow restriction function"@en ; rdfs:label "função de restrição de fluxo"@pt-br . ### Process type :FlowRestrictionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "flow restriction process"@en ; rdfs:label "processo de restrição de fluxo"@pt-br . :FlowRestrictionProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: RestrictionOrifice :RestrictionOrifice rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :FlowModificationAccessory [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :FlowRestrictionFunction ] ) ] ; rdfs:label "restriction orifice"@en ; rdfs:label "orifício de restrição"@pt-br ; iof-av:naturalLanguageDefinition "A restriction orifice is a flow modification accessory that bears the function to restrict fluid flow by creating controlled pressure drop through geometric constriction."@en ; skos:definition "A restriction orifice is a flow modification accessory that bears the function to restrict fluid flow by creating controlled pressure drop through geometric constriction."@en ; iof-av:naturalLanguageDefinition "Um orifício de restrição é um acessório de modificação de fluxo que possui a função de restringir o fluxo de fluido criando queda de pressão controlada através de constrição geométrica."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every restriction orifice is a flow modification accessory that bears a flow restriction function"@en ; iof-av:firstOrderLogicAxiom "∀x(RestrictionOrifice(x) ↔ FlowModificationAccessory(x) ∧ ∃f(FlowRestrictionFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: RestrictionOrifice and FlowMeter [] rdf:type owl:AllDisjointClasses ; owl:members ( :RestrictionOrifice :FlowMeter ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
FlowRestrictionFunction ⊑ DesignedFunction
Realized in
FlowRestrictionProcess ⊑ PlannedProcess
The identity-giving function is to restrict fluid flow by creating a controlled pressure drop. This is distinct from flow control (which modulates flow) and is specifically about creating resistance to flow through geometric constriction.
2 Genus DeterminationDeterminação do Gênero
flow modification accessorybfo:Object (BFO_0000030)
The ISO definition explicitly states that a restriction orifice is a FLOW MODIFICATION ACCESSORY. This is the most specific superclass provided. Since this genus is not in the enriched classes list, it would be a MaterialArtifact (causally unified flow-modifying component without removable subparts).
3 Differentia SpecificaDiferença Específica
∃bearerOf.FlowRestrictionFunction

A restriction orifice is distinguished from other flow modification accessories by its function to restrict flow through geometric constriction.

The differentia is the specific flow restriction function, which is a subtype of the general flow modification function provided by the genus. This distinguishes it from other accessories that modify flow in different ways.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal essential parts - a plate structure and the aperture(s) that create the restriction. Mounting hardware and flanges vary by application.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'higher pressure upstream'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'lower pressure downstream due to restriction'}
TransformationTransformação
pressure energy dissipation through geometric constriction
Single input stream experiences pressure drop through the restriction, creating a lower pressure output stream. The transformation is irreversible energy dissipation.
Disjoint WithDisjunto com
FlowMeter
C4: FlowMeter. FlowMeter signature includes measurement output signal; PressureRegulator maintains constant downstream pressure rather than creating fixed restriction
MetadataMetadados
COPI IDCOPI IDCOPI_0000146
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000146
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13