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exported necessary COPI_0000080
Seat
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000080
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
A MaterialArtifact that has a sealing surface component and participates in valve closing processes, consisting in that part of a valve against which the closure element bears to provide tight shutoff.
PT-BR
Um MaterialArtifact que possui um componente de superfície de vedação e participa em processos de fechamento de válvulas, consistindo na parte da válvula contra a qual o elemento de fechamento se apoia para proporcionar vedação hermética.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every Seat is a MaterialArtifact that has some sealing surface component at all times and participates in some valve closing process.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (Seat(x) → MaterialArtifact(x) ∧ ∃f (SealingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: SealingFunction]∀f (SealingFunction(f) → ∀p (realizedIn(f,p) → SealingProcess(p)) ∧ ∃p (SealingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (Seat(x) → ∃hasComponentPartAtAllTimes.SealingSurface ⊓ ∃participatesIn.ValveClosingProcess) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: ?]∀x (Seat(x) → ∃p (?(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((Seat(x) ∧ SealingFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,Containment)) — 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: Seat <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 :SealingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :SealingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :SealingProcess ] ; rdfs:label "sealing function"@en ; rdfs:label "função de vedação"@pt-br ; iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in a SealingProcess and that consists in providing a tight interface against which a closure element bears to prevent fluid leakage through a valve."@en ; skos:definition "A DesignedFunction that is realized in a SealingProcess and that consists in providing a tight interface against which a closure element bears to prevent fluid leakage through a valve."@en . ### Process type :SealingProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "sealing process"@en ; rdfs:label "processo de vedação"@pt-br ; iof-av:naturalLanguageDefinition "A PlannedProcess in which a valve seat provides a sealing interface for a closure element (gate, ball, disc) to bear against, preventing fluid passage when the valve is closed."@en ; skos:definition "A PlannedProcess in which a valve seat provides a sealing interface for a closure element (gate, ball, disc) to bear against, preventing fluid passage when the valve is closed."@en . :SealingProcess 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: Seat :Seat rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :SealingFunction ] ; rdfs:label "seat"@en ; rdfs:label "assento"@pt-br ; iof-av:naturalLanguageDefinition "A MaterialArtifact that has a sealing surface component and participates in valve closing processes, consisting in that part of a valve against which the closure element bears to provide tight shutoff."@en ; skos:definition "A MaterialArtifact that has a sealing surface component and participates in valve closing processes, consisting in that part of a valve against which the closure element bears to provide tight shutoff."@en ; iof-av:naturalLanguageDefinition "Um MaterialArtifact que possui um componente de superfície de vedação e participa em processos de fechamento de válvulas, consistindo na parte da válvula contra a qual o elemento de fechamento se apoia para proporcionar vedação hermética."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every Seat is a MaterialArtifact that has some sealing surface component at all times and participates in some valve closing process."@en ; iof-av:firstOrderLogicAxiom "∀x(Seat(x) → MaterialArtifact(x) ∧ ∃y(SealingSurface(y) ∧ hasComponentPartAtAllTimes(x,y)) ∧ ∃z(ValveClosingProcess(z) ∧ participatesIn(x,z)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive type based on physical configuration. Under OWA, sufficient conditions for 'seat' based solely on structural properties could lead to false positives where other valve components with sealing surfaces are incorrectly classified as seats."@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
SealingFunction ⊑ DesignedFunction
Realized in
SealingProcess ⊑ PlannedProcess
The seat's identity-giving function is sealing - it provides the critical interface that enables tight shutoff when the closure element contacts it. This is the generic sealing function shared by all valve seats.
2 Genus DeterminationDeterminação do Gênero
MaterialArtifactbfo:Object (BFO_0000030)
No domain-specific superclass exists in the already-enriched classes. A seat is a discrete valve component that is a designed artifact but not a complex assembly with removable subcomponents. It falls directly under MaterialArtifact as a causally unified object designed for a specific function.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.SealingSurface ⊓ ∃participatesIn.ValveClosingProcess

A seat is distinguished by having a sealing surface component and participating in valve closing processes as the interface against which closure elements bear.

The differentia captures the seat's unique structural role as a bearing surface in valve operation. The sealing surface is the essential structural component, and participation in valve closing processes distinguishes it from other sealing components.
4 Necessary PartsPartes Necessárias
Part classParentRelation
MaterialArtifacthasComponentPartAtAllTimes
The sealing surface is the only universally necessary part of any valve seat. Other components like gaskets or inserts are subtype-specific variations. No terms in the provided list match the basic sealing surface concept.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'fluid attempting to pass through valve when closure element is engaged'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'fluid flow blocked or sealed when closure element properly contacts seat'}
TransformationTransformação
provides bearing surface for closure element contact to prevent fluid passage through valve
The seat enables the valve's primary sealing function by providing the interface against which the closure element bears. Input is fluid that would otherwise pass through; output is the same fluid stream blocked by the seat-closure element interface.
MetadataMetadados
COPI IDCOPI IDCOPI_0000080
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000080
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-06-26
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroMaterialArtifact
Root classClasse raizMaterialArtifact
Axiom modeModonecessary
FunctionFunçãoSealingFunction
ProcessProcessoSealingProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 1 source
SLB Glossary seat
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.