exported
necessary
check valve closure member
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Checkvalveclosuremember
Generated on 2026-05-04
Natural Language Definition
EN
A MaterialArtifact that is a component part of a check valve and that bears a BackflowPreventionFunction, consisting in a mechanical element that prevents fluid flow reversal by physically blocking the flow path when pressure conditions indicate potential backflow.
PT-BR
Um MaterialArtifact que é uma parte componente de uma válvula de retenção e que possui uma BackflowPreventionFunction, consistindo em um elemento mecânico que previne o refluxo de fluido bloqueando fisicamente o caminho de fluxo quando as condições de pressão indicam potencial refluxo.
Formal Axioms
Semi-formal (Aristotelian)
Every check valve closure member is a MaterialArtifact that is component part of some check valve and bears some BackflowPreventionFunction
First-Order Logic Theory
Loading…
▸ Stored override
∀x(CheckValveClosureMember(x) → MaterialArtifact(x) ∧ ∃y(CheckValve(y) ∧ isComponentPartOf(x,y)) ∧ ∃f(BackflowPreventionFunction(f) ∧ bearerOf(x,f)))
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: CheckValveClosureMember
<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 "2026-10-08"^^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
:COPI_0000161 rdf:type owl:Class ; # BackflowPreventionFunction
rdfs:subClassOf :COPI_0000026 ; # FlowControlFunction
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000415 # BackflowPreventionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000415 # BackflowPreventionProcess
] ;
rdfs:label "backflow prevention function"@en ;
rdfs:label "função de prevenção de refluxo"@pt-br ;
iof-av:naturalLanguageDefinition "A FlowControlFunction that is realized in a BackflowPreventionProcess and that consists in preventing the reversal of fluid flow direction by physically blocking the flow path when pressure differential indicates potential backflow conditions."@en ;
skos:definition "A FlowControlFunction that is realized in a BackflowPreventionProcess and that consists in preventing the reversal of fluid flow direction by physically blocking the flow path when pressure differential indicates potential backflow conditions."@en .
:COPI_0000026 rdf:type owl:Class . # FlowControlFunction
### Process type
:COPI_0000415 rdf:type owl:Class ; # BackflowPreventionProcess
rdfs:subClassOf :COPI_0000010 ; # FlowControl
rdfs:label "backflow prevention process"@en ;
rdfs:label "processo de prevenção de refluxo"@pt-br ;
iof-av:naturalLanguageDefinition "A PlannedProcess in which fluid flow reversal is prevented by a closure member that moves to block the flow path when upstream pressure falls below downstream pressure or when flow attempts to reverse direction."@en ;
skos:definition "A PlannedProcess in which fluid flow reversal is prevented by a closure member that moves to block the flow path when upstream pressure falls below downstream pressure or when flow attempts to reverse direction."@en .
:COPI_0000010 rdf:type owl:Class . # FlowControl
:COPI_0000415 # BackflowPreventionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: CheckValveClosureMember
:COPI_0000227 rdf:type owl:Class ; # CheckValveClosureMember
rdfs:subClassOf iof-core:MaterialArtifact ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000161 # BackflowPreventionFunction
] ;
rdfs:label "check valve closure member"@en ;
rdfs:label "membro de fechamento de válvula de retenção"@pt-br ;
iof-av:naturalLanguageDefinition "A MaterialArtifact that is a component part of a check valve and that bears a BackflowPreventionFunction, consisting in a mechanical element that prevents fluid flow reversal by physically blocking the flow path when pressure conditions indicate potential backflow."@en ;
skos:definition "A MaterialArtifact that is a component part of a check valve and that bears a BackflowPreventionFunction, consisting in a mechanical element that prevents fluid flow reversal by physically blocking the flow path when pressure conditions indicate potential backflow."@en ;
iof-av:naturalLanguageDefinition "Um MaterialArtifact que é uma parte componente de uma válvula de retenção e que possui uma BackflowPreventionFunction, consistindo em um elemento mecânico que previne o refluxo de fluido bloqueando fisicamente o caminho de fluxo quando as condições de pressão indicam potencial refluxo."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every check valve closure member is a MaterialArtifact that is component part of some check valve and bears some BackflowPreventionFunction"@en ;
iof-av:firstOrderLogicAxiom "∀x(CheckValveClosureMember(x) → MaterialArtifact(x) ∧ ∃y(CheckValve(y) ∧ isComponentPartOf(x,y)) ∧ ∃f(BackflowPreventionFunction(f) ∧ bearerOf(x,f)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Constructive type defined by structural role and mechanism. Under OWA, sufficient conditions would force classification of any artifact with backflow prevention function and check valve association, potentially including hybrid or specialized designs that should not be automatically classified as standard closure members without domain expert validation."@en ;
skos:definition "[ISO 15926-4] A <CHECK VALVE CLOSURE MEMBER> is an <ARTEFACT> and a <VALVE CLOSURE MEMBER> that is intended to prevent back flow"@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
BackflowPreventionFunction
⊑ FlowControlFunction
Realized in
BackflowPreventionProcess
⊑ FlowControl
The closure member inherits the check valve's identity-giving function of preventing backflow. While it is a constructive part, it participates in realizing this function through its physical mechanism.
2
Genus Determination
MaterialArtifact
bfo:Object (BFO_0000030)
Monolithic causally unified material artefact.
MaterialArtifact ≡ Object ⊓ ∃bearerOf.DesignedFunction.
The concept is defined as both ARTEFACT and VALVE CLOSURE MEMBER in the source. Since VALVE CLOSURE MEMBER is not in the already-enriched classes and represents a specialized component category, we use MaterialArtifact as the most specific available genus. This is a designed artifact that functions as a mechanical component within a larger assembly.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
No component terms are provided in the source standards, and the source definition does not specify internal parts of the closure member itself. This is a component-level concept where further decomposition into subparts would require additional domain expertise and source evidence.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— attempting reverse flow direction
Outputs (O)
PortionOfFluid
— flow blocked or permitted based on pressure differential
Transformation (T)
mechanical positioning to block or permit flow based on pressure differential and flow direction
The closure member responds to fluid pressure differentials by positioning itself to either block reverse flow or allow forward flow, which is the characteristic signature of flow direction control mechanisms.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Constructive type defined by structural role and mechanism. Under OWA, sufficient conditions would force classification of any artifact with backflow prevention function and check valve association, potentially including hybrid or specialized designs that should not be automatically classified as standard closure members without domain expert validation.
Cross-Standard Observations
Only one source definition available. The definition is concise and structurally focused, providing clear guidance for ontological classification as a component part with inherited functional characteristics.
Source Definitions
1 source
ISO 15926-4
CHECK VALVE CLOSURE MEMBER ↗
Definition text withheld (copyrighted standard) — follow the source link above.
Metadata
| Ontology | COPI |
| Research group | INF-UFRGS-Ontologies |
| Funding | CNPq INF-UFRGS-ENERGIA |
| Project | OntoKG / Petrobras |
| ID | #387 |
| Cluster | check valve closure member |
| Status | exported |
| Axiom mode | necessary |
| Created | 2026-05-04 |
| Updated | 2026-09-08 |
ISA 5.1-2022 P&ID Symbol
wikimedia/check_valve.svg
