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exported necessary COPI_0000372
Valve Stem
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000372
Generated onGerado em 2026-05-04
Natural Language DefinitionDefinição em Linguagem Natural
EN
An Assembly that bears a ForceTransmissionFunction and that has a valve stem seal as a component part, specifically designed to transmit motion from a valve operator to the valve closure member.
PT-BR
Um Assembly que porta uma ForceTransmissionFunction e que tem um selo de haste de válvula como parte componente, especificamente projetado para transmitir movimento de um operador de válvula para o membro de fechamento da válvula.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
ValveStem SubClassOf Assembly and bearerOf some ForceTransmissionFunction and hasComponentPartAtAllTimes some ValveStemSeal
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (ValveStem(x) → Assembly(x) ∧ ∃f (ForceTransmissionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: ForceTransmissionFunction]∀f (ForceTransmissionFunction(f) → ∀p (realizedIn(f,p) → ForceTransmissionProcess(p)) ∧ ∃p (ForceTransmissionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (ValveStem(x) → ∃hasComponentPartAtAllTimes.ValveStemSeal ⊓ ∃participatesIn.ValveOperationProcess) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((ValveStem(x) ∧ ForceTransmissionFunction(f) ∧ bearerOf(x,f)) → processType(f,MechanicalPowerTransmission)) — 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: ValveStem <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 :ForceTransmissionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :ForceTransmissionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :ForceTransmissionProcess ] ; rdfs:label "force transmission function"@en ; rdfs:label "função de transmissão de força"@pt-br ; iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in a ForceTransmissionProcess and that consists in transmitting mechanical force or motion from one component to another through direct physical coupling."@en ; skos:definition "A DesignedFunction that is realized in a ForceTransmissionProcess and that consists in transmitting mechanical force or motion from one component to another through direct physical coupling."@en . ### Process type :ForceTransmissionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "force transmission process"@en ; rdfs:label "processo de transmissão de força"@pt-br ; iof-av:naturalLanguageDefinition "A PlannedProcess in which mechanical force or motion is transferred from an input component to an output component through direct physical coupling and mechanical linkage."@en ; skos:definition "A PlannedProcess in which mechanical force or motion is transferred from an input component to an output component through direct physical coupling and mechanical linkage."@en . ### Equipment universal: ValveStem :ValveStem rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :ForceTransmissionFunction ] ; rdfs:label "valve stem"@en ; rdfs:label "haste de válvula"@pt-br ; iof-av:naturalLanguageDefinition "An Assembly that bears a ForceTransmissionFunction and that has a valve stem seal as a component part, specifically designed to transmit motion from a valve operator to the valve closure member."@en ; skos:definition "An Assembly that bears a ForceTransmissionFunction and that has a valve stem seal as a component part, specifically designed to transmit motion from a valve operator to the valve closure member."@en ; iof-av:naturalLanguageDefinition "Um Assembly que porta uma ForceTransmissionFunction e que tem um selo de haste de válvula como parte componente, especificamente projetado para transmitir movimento de um operador de válvula para o membro de fechamento da válvula."@pt-br ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive type defined by physical structure (rod/shaft mechanism). Under Open World Assumption, sufficient conditions would force any assembly with a valve stem seal and force transmission function to be classified as a valve stem, which could include complex multi-component assemblies, manifolds, or specialized valve mechanisms that contain these elements but should not be asserted into the standard valve stem maintenance category."@en ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000059 ] ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
ForceTransmissionFunction ⊑ DesignedFunction
Realized in
ForceTransmissionProcess ⊑ PlannedProcess
The ISO 15926 definition identifies the valve stem as a 'TRANSMITTER(force)' that transmits motion from operator to closure member. This force/motion transmission function is the fundamental capacity the valve stem was designed to exercise, though it is a generic function shared with many mechanical transmission components.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
No valve-specific component superclass exists in the already-enriched classes. While 'VALVE COMPONENT' appears in the source hierarchy, it is not yet enriched in our ontology. The valve stem is a manufactured assembly with physically connected parts (rod/shaft body plus threaded portions, sealing interfaces, etc.) that functions as a single causally unified mechanism. It falls under Assembly as a complex engineered artifact with removable subcomponents.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.ValveStemSeal ⊓ ∃participatesIn.ValveOperationProcess

An assembly that has a valve stem seal as a component part and participates in valve operation processes by transmitting motion between valve operator and closure member.

The valve stem seal is evidenced in the known component terms and represents the sealing interface that distinguishes valve stems from generic force transmission shafts. Participation in valve operation processes captures the specific application context that differentiates valve stems from other mechanical transmission components.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The valve stem seal is the only component explicitly grounded in the provided sources. While valve stems obviously require the rod/shaft body itself, no specific term for this component appears in the known component terms list, so it cannot be formally included.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
—
OutputsSaídas
—
TransformationTransformação
mechanical motion transmitted from valve operator to closure member through rigid shaft coupling
The process signature reflects the valve stem's role as a mechanical transmission link. Input is motion/force from the valve actuator, output is the same motion/force delivered to the closure member. The transformation is purely mechanical transmission without energy conversion, matching the controlled vocabulary term.
MetadataMetadados
COPI IDCOPI IDCOPI_0000372
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000372
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-05-04
UpdatedAtualizado2026-07-12
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
ISA 5.1-2022 — wikimedia/valve.svg
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoForceTransmissionFunction
ProcessProcessoForceTransmissionProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 1 source
ISO 15926-4 VALVE STEM
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.