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exported necessary COPI_0000111
Double Block And Bleed Valve
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000111
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A double block and bleed valve is a valve that incorporates two seats each providing sealing capability and includes a means of venting the space between the seats.
PT-BR
Uma válvula de bloqueio duplo e sangria é uma válvula que incorpora duas sedes, cada uma proporcionando capacidade de vedação, e inclui um meio de ventilação do espaço entre as sedes.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every double block and bleed valve is a valve that has a primary seat and has a secondary seat and has a bleed port.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (DoubleBlockAndBleedValve(x) → Valve(x) ∧ ∃f (FlowControlFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: FlowControlFunction]∀f (FlowControlFunction(f) → ∀p (realizedIn(f,p) → FlowControlProcess(p)) ∧ ∃p (FlowControlProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (DoubleBlockAndBleedValve(x) → ∃hasComponentPartAtAllTimes.PrimarySeat ⊓ ∃hasComponentPartAtAllTimes.SecondarySeat ⊓ ∃hasComponentPartAtAllTimes.BleedPort) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((DoubleBlockAndBleedValve(x) ∧ FlowControlFunction(f) ∧ bearerOf(x,f)) → ∃m (PortionOfFluid(m) ∧ participatesIn(m,f)) ∧ ∃e1 (PortionOfFluid(e1) ∧ participatesIn(e1,f)) ∧ ∃e2 (PortionOfFluid(e2) ∧ participatesIn(e2,f)) ∧ processType(f,FlowIsolation)) — 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: DoubleBlockAndBleedValve <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" ; 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 "2026-10-07"^^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 :FlowControlFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :FlowControlProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :FlowControlProcess ] ; rdfs:label "flow control function"@en ; rdfs:label "função de controle de fluxo"@pt-br . ### Process type :FlowControlProcess rdf:type owl:Class ; rdfs:subClassOf :FlowControl ; rdfs:label "flow control process"@en ; rdfs:label "processo de controle de fluxo"@pt-br . :FlowControl rdf:type owl:Class . :FlowControlProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PortionOfFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PortionOfFluid ] . ### Equipment universal: DoubleBlockAndBleedValve :DoubleBlockAndBleedValve rdf:type owl:Class ; rdfs:subClassOf :Valve ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :FlowControlFunction ] ; rdfs:label "double block and bleed valve"@en ; rdfs:label "válvula de bloqueio duplo e sangria"@pt-br ; iof-av:naturalLanguageDefinition "A double block and bleed valve is a valve that incorporates two seats each providing sealing capability and includes a means of venting the space between the seats."@en ; skos:definition "A double block and bleed valve is a valve that incorporates two seats each providing sealing capability and includes a means of venting the space between the seats."@en ; iof-av:naturalLanguageDefinition "Uma válvula de bloqueio duplo e sangria é uma válvula que incorpora duas sedes, cada uma proporcionando capacidade de vedação, e inclui um meio de ventilação do espaço entre as sedes."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every double block and bleed valve is a valve that has a primary seat and has a secondary seat and has a bleed port."@en ; iof-av:firstOrderLogicAxiom "∀x (DoubleBlockAndBleedValve(x) → (Valve(x) ∧ ∃p,s,b (PrimarySeat(p) ∧ SecondarySeat(s) ∧ BleedPort(b) ∧ hasComponentPartAtAllTimes(x,p) ∧ hasComponentPartAtAllTimes(x,s) ∧ hasComponentPartAtAllTimes(x,b))))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive basis - the structural differentia (dual seats plus bleed port) defines necessary conditions, but under OWA we cannot assert that ANY artifact with these structural components is definitively a double block and bleed valve, as specialized multi-way valves or custom manifolds might contain similar mechanisms without being standard maintenance categories."@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
FlowControlFunction ⊑ DesignedFunction
Realized in
FlowControlProcess ⊑ FlowControl
As a valve subtype, the identity-giving function is FlowControlFunction - the ability to regulate fluid flow. This is the generic function inherited from the valve genus, not a specialized function unique to double block and bleed valves.
2 Genus DeterminationDeterminação do Gênero
Valvebfo:Object (BFO_0000030)
The concept is explicitly defined as inheriting from both BLOCK AND BLEED VALVE and DOUBLE BLOCK VALVE in ISO 15926, and manual valve is listed as a parent in CFIHOS. However, the most fundamental genus is Valve, which is already enriched in our ontology with function: FlowControlFunction and genus: MaterialArtifact.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.PrimarySeat ⊓ ∃hasComponentPartAtAllTimes.SecondarySeat ⊓ ∃hasComponentPartAtAllTimes.BleedPort

Has exactly two seats that each provide sealing capability and includes a means of venting the space between the seats.

The defining structural characteristic is the dual seating arrangement (primary and secondary seats) combined with the intermediate bleed capability. This differentiates it from single-seat valves, double block valves without bleed, and single block and bleed configurations.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The dual seating system plus bleed port are the essential structural components that define this valve type. The valve body houses this specific arrangement.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'any phase, any composition'}
OutputsSaídas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'controlled flow rate, same phase and composition as input'}, {'type': 'PortionOfFluid', 'count': 1, 'constraints': 'bleed fluid from intermediate cavity - optional, for venting/testing'}
TransformationTransformação
flow control with dual isolation capability and intermediate cavity monitoring/venting
Primary signature is standard valve flow control, but with additional bleed output capability that allows venting or sampling from the space between seats for testing seal integrity.
MetadataMetadados
COPI IDCOPI IDCOPI_0000111
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000111
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-16
UpdatedAtualizado2026-09-08
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-10-07
ISA 5.1-2022 — wikimedia/valve.svg
Quick factsDados rápidos
GenusGêneroValve
Root classClasse raizMaterialArtifact
Axiom modeModonecessary
FunctionFunçãoFlowControlFunction
ProcessProcessoFlowControlProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 2 sources
ISO 15926-4 DOUBLE BLOCK AND BLEED 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 double block and bleed 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.
Provenance tiersCamadas de proveniência
primarystandardverbatimiso15926
A <DOUBLE BLOCK AND BLEED VALVE> is a <BLOCK AND BLEED VALVE> and a <DOUBLE BLOCK VALVE> that is incorporating two seats, each of which provides a seal, and a means of venting the space between the seats. The seats may isolate with the pressure differential acting in the same or in opposite directions depending on the design
secondarystandardverbatimcfihos
A block and bleed valve that is incorporating two seats, each of which provides a seal, and a means of venting the space between the seats. The seats may isolate with the pressure differential acting in the same or in opposite directions depending on the design.

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