exported equivalent COPI_0000103
Check Valve
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000103
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
A check valve is a valve that bears a backflow prevention function, automatically permitting fluid to flow in one direction only while preventing reverse flow.
PT-BR
Uma válvula de retenção é uma válvula que possui uma função de prevenção de refluxo, permitindo automaticamente que o fluido flua em apenas uma direção enquanto previne o fluxo reverso.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every check valve is a valve that has the function to prevent backflow and automatically allow unidirectional fluid flow.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (CheckValve(x) ↔ Valve(x) ∧ ∃f (BackflowPreventionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: BackflowPreventionFunction]∀f (BackflowPreventionFunction(f) → ∀p (realizedIn(f,p) → BackflowPreventionProcess(p)) ∧ ∃p (BackflowPreventionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((CheckValve(x) ∧ BackflowPreventionFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,FlowDirectionControl)) — 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: CheckValve <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 :BackflowPreventionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :BackflowPreventionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :BackflowPreventionProcess ] ; rdfs:label "backflow prevention function"@en ; rdfs:label "função de prevenção de refluxo"@pt-br . ### Process type :BackflowPreventionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "backflow prevention process"@en ; rdfs:label "processo de prevenção de refluxo"@pt-br . :BackflowPreventionProcess 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: CheckValve :CheckValve rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Valve [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :BackflowPreventionFunction ] ) ] ; rdfs:label "check valve"@en ; rdfs:label "válvula de retenção"@pt-br ; iof-av:naturalLanguageDefinition "A check valve is a valve that bears a backflow prevention function, automatically permitting fluid to flow in one direction only while preventing reverse flow."@en ; skos:definition "A check valve is a valve that bears a backflow prevention function, automatically permitting fluid to flow in one direction only while preventing reverse flow."@en ; iof-av:naturalLanguageDefinition "Uma válvula de retenção é uma válvula que possui uma função de prevenção de refluxo, permitindo automaticamente que o fluido flua em apenas uma direção enquanto previne o fluxo reverso."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every check valve is a valve that has the function to prevent backflow and automatically allow unidirectional fluid flow."@en ; iof-av:firstOrderLogicAxiom "∀x(CheckValve(x) ↔ Valve(x) ∧ ∃f(BackflowPreventionFunction(f) ∧ bearerOf(x,f)))"@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
BackflowPreventionFunction ⊑ DesignedFunction
Realized in
BackflowPreventionProcess ⊑ PlannedProcess
The identity-giving function is preventing fluid from flowing in the reverse direction while allowing forward flow. This is consistently stated across all sources as 'permits fluid to flow in one direction only' - this unidirectional flow control by automatic backflow prevention is what makes a check valve distinct from other valve types.
2 Genus DeterminationDeterminação do Gênero
Valvebfo:Object (BFO_0000030)
Check valve is explicitly defined as a subtype of valve in all sources. The genus 'Valve' is already enriched in our ontology with FlowControlFunction and MaterialArtifact classification. Check valves inherit the basic valve characteristics but specialize the flow control function to automatic backflow prevention.
3 Differentia SpecificaDiferença Específica
∃bearerOf.BackflowPreventionFunction

Bears a backflow prevention function that automatically permits flow in one direction only while preventing reverse flow.

The differentia is the specific BackflowPreventionFunction which is a specialization of the inherited FlowControlFunction. This automatic, direction-sensitive operation distinguishes check valves from all other valve types that require manual or external actuation.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal universal parts required for any check valve to function - a body for fluid path, a closure member for flow control, and a seat for sealing. Specific mechanisms (hinges, springs, guides) vary by subtype.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'any phase, forward flow pressure'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'same composition, forward direction only'}
TransformationTransformação
directional flow control - no phase change or composition change, only automatic flow direction enforcement
Check valves are passive flow control devices that allow flow in one direction based on pressure differential, with no transformation of the fluid itself, only control of flow direction.
MetadataMetadados
COPI IDCOPI IDCOPI_0000103
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000103
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13