← Class ReferenceReferência de Classes
exported equivalent COPI_0000148
Safety Valve
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000148
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A safety valve is a valve that bears a safety venting function for automatic pressure relief through rapid full opening to protect against dangerous overpressure conditions.
PT-BR
Uma válvula de segurança é uma válvula que possui uma função de ventilação de segurança para alívio automático de pressão por abertura rápida e total para proteção contra condições perigosas de sobrepressão.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every safety valve is a valve that has the function to automatically relieve excess pressure for emergency protection
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (SafetyValve(x) ↔ Valve(x) ∧ ∃f (SafetyVentingFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.SafetyReliefFunction) — Steps 1–3: genus + identity-giving function [Function axiom: SafetyVentingFunction]∀f (SafetyVentingFunction(f) → ∀p (realizedIn(f,p) → SafetyReliefProcess(p)) ∧ ∃p (SafetyReliefProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((SafetyValve(x) ∧ SafetyVentingFunction(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: SafetyValve <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 :SafetyVentingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :SafetyReliefProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :SafetyReliefProcess ] ; rdfs:label "safety venting function"@en ; rdfs:label "função de ventilação de segurança"@pt-br . ### Process type :SafetyReliefProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "safety relief process"@en ; rdfs:label "processo de alívio de segurança"@pt-br . :SafetyReliefProcess 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: SafetyValve :SafetyValve 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 :SafetyVentingFunction ] ) ] ; rdfs:label "safety valve"@en ; rdfs:label "válvula de segurança"@pt-br ; iof-av:naturalLanguageDefinition "A safety valve is a valve that bears a safety venting function for automatic pressure relief through rapid full opening to protect against dangerous overpressure conditions."@en ; skos:definition "A safety valve is a valve that bears a safety venting function for automatic pressure relief through rapid full opening to protect against dangerous overpressure conditions."@en ; iof-av:naturalLanguageDefinition "Uma válvula de segurança é uma válvula que possui uma função de ventilação de segurança para alívio automático de pressão por abertura rápida e total para proteção contra condições perigosas de sobrepressão."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every safety valve is a valve that has the function to automatically relieve excess pressure for emergency protection"@en ; iof-av:firstOrderLogicAxiom "∀x(SafetyValve(x) ↔ Valve(x) ∧ ∃f(SafetyReliefFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: SafetyValve and CheckValve [] rdf:type owl:AllDisjointClasses ; owl:members ( :SafetyValve :CheckValve ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
SafetyVentingFunction ⊑ DesignedFunction
Realized in
SafetyReliefProcess ⊑ PlannedProcess
The identity-giving function is safety relief - automatically releasing excess pressure to protect equipment and personnel from dangerous overpressure conditions. This function is already identified in the enriched classes list as the defining function for safety relief valve, confirming this is the established function for safety-oriented pressure relief.
2 Genus DeterminationDeterminação do Gênero
Valvebfo:Object (BFO_0000030)
Safety valve is clearly a subtype of Valve, which is already enriched in the ontology with function FlowControlFunction and genus MaterialArtifact. The parent candidates include 'PRESSURE RELIEF DEVICE' but this is a functional category that cuts across multiple valve types. Valve is the most specific structural superclass that provides the valve body, closure mechanism, and basic flow control infrastructure that safety valves inherit.
3 Differentia SpecificaDiferença Específica
∃bearerOf.SafetyReliefFunction

Designed specifically for automatic pressure relief to protect against dangerous overpressure conditions

The SafetyReliefFunction is the minimal differentiating condition that distinguishes safety valves from other valve types under the same genus. This function specializes the general FlowControlFunction inherited from Valve to focus specifically on emergency pressure relief scenarios.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

Safety valves inherit basic valve parts (body, closure mechanism) from the Valve genus. The distinguishing parts are those that enable automatic pressure-responsive operation for safety protection.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'above safety relief pressure threshold'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'relieved to safe pressure level'}
TransformationTransformação
pressure reduction through rapid discharge to atmosphere or relief system
Safety valves take high-pressure fluid input and rapidly discharge it to reduce system pressure below dangerous levels. The transformation is specifically pressure reduction for emergency protection, distinguishing it from gradual pressure control or process regulation.
Disjoint WithDisjunto com
CheckValve
C2: check valve. Check valves prevent backflow (unidirectional flow control) while safety valves provide pressure relief (emergency pressure protection). These have incompatible process signatures - one prevents reverse flow, the other enables emergency discharge regardless of flow direction.
MetadataMetadados
COPI IDCOPI IDCOPI_0000148
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000148
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-15
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
ISA 5.1-2022 — wikimedia/valve.svg
Quick factsDados rápidos
GenusGêneroValve
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoSafetyVentingFunction
ProcessProcessoSafetyReliefProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 SAFETY 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.
SLB Glossary safety 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.
ONEPETRO_GLOSSARY Safety 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.