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exported necessary COPI_0000160
Wafer Check Valve
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000160
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A wafer check valve is a check valve that has a wafer pattern valve body designed for mounting between flanges.
PT-BR
Uma válvula de retenção wafer é uma válvula de retenção que possui um corpo de válvula padrão wafer projetado para montagem entre flanges.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every wafer check valve is a check valve that has a wafer pattern valve body as component part at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (WaferCheckValve(x) → CheckValve(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 [Structural differentia (necessary only)]∀x (WaferCheckValve(x) → ∃hasComponentPartAtAllTimes.WaferPatternValveBody) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((WaferCheckValve(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: WaferCheckValve <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: WaferCheckValve :WaferCheckValve rdf:type owl:Class ; rdfs:subClassOf :CheckValve ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :BackflowPreventionFunction ] ; rdfs:label "wafer check valve"@en ; rdfs:label "válvula de retenção wafer"@pt-br ; iof-av:naturalLanguageDefinition "A wafer check valve is a check valve that has a wafer pattern valve body designed for mounting between flanges."@en ; skos:definition "A wafer check valve is a check valve that has a wafer pattern valve body designed for mounting between flanges."@en ; iof-av:naturalLanguageDefinition "Uma válvula de retenção wafer é uma válvula de retenção que possui um corpo de válvula padrão wafer projetado para montagem entre flanges."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every wafer check valve is a check valve that has a wafer pattern valve body as component part at all times."@en ; iof-av:firstOrderLogicAxiom "∀x(WaferCheckValve(x) → CheckValve(x) ∧ ∃y(WaferPatternValveBody(y) ∧ hasComponentPartAtAllTimes(x,y)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Using necessary conditions because this is a constructive subtype (both functional and structural aspects). The wafer pattern mounting configuration is a structural differentia that, while characteristic, may have edge cases or specialized variants that should not be automatically classified without expert validation. The structural differentia should be confirmed as both necessary and sufficient in industrial practice before upgrading to equivalent mode."@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
BackflowPreventionFunction ⊑ DesignedFunction
Realized in
BackflowPreventionProcess ⊑ PlannedProcess
The identity-giving function is inherited from the check valve parent class. A wafer check valve is fundamentally a check valve (prevents reverse flow) that happens to have a wafer mounting pattern. The BackflowPreventionFunction is already established in the enriched check valve class and should be reused.
2 Genus DeterminationDeterminação do Gênero
check valvebfo:Object (BFO_0000030)
From the parent_candidates, 'check valve' is already enriched in our ontology and is the most specific appropriate superclass. The wafer check valve is clearly a specialization of check valve with additional structural constraints. The definition explicitly states it is both a wafer pattern valve AND a check valve, making check valve the functional genus.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.WaferPatternValveBody

Has a wafer pattern valve body designed for mounting between flanges without requiring separate valve flanges.

The differentia is purely structural - the wafer pattern valve body. This is a specific body design that allows the valve to be sandwiched between pipe flanges without requiring its own flanged connections. This structural differentia is what distinguishes wafer check valves from other check valve types while inheriting the functional identity from the check valve genus.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The wafer pattern valve body is the defining structural component that distinguishes this from other check valve types. The closure member is inherited from the check valve genus but may vary (disc, ball, etc.) depending on the specific wafer check valve design.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'forward flow direction'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'same fluid, reverse flow blocked'}
TransformationTransformação
directional flow control - permits forward flow, blocks reverse flow
Inherits the process signature from check valve - single inlet/outlet with automatic closure on flow reversal. The wafer mounting pattern does not change the fundamental flow control function.
MetadataMetadados
COPI IDCOPI IDCOPI_0000160
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000160
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
ISA 5.1-2022 — wikimedia/check_valve.svg
Quick factsDados rápidos
GenusGênerocheck valve
Root classClasse raizMaterialArtifact
Axiom modeModonecessary
FunctionFunçãoBackflowPreventionFunction
ProcessProcessoBackflowPreventionProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 WAFER CHECK VALVE
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
CFIHOS wafer check valve
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
POSC Caesar Wafer Check Valve
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.