exported
necessary
self-operating valve
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Self-Operatingvalve
Generated on 2026-04-13
Natural Language Definition
EN
A self-operating valve is a valve that includes an internal means of operation (such as spring, gravity, fluid pressure, or counterbalance) and does not depend on an external source of energy for its actuation.
PT-BR
Uma válvula auto-operante é uma válvula que inclui um mecanismo interno de operação (como mola, gravidade, pressão do fluido ou contrapeso) e não depende de uma fonte externa de energia para seu acionamento.
Formal Axioms
Semi-formal (Aristotelian)
Every self-operating valve is a valve that has a self-operating mechanism as component part at all times and bears the capability of energy-independent operation.
First-Order Logic Theory
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▸ Stored override
∀x(SelfOperatingValve(x) → Valve(x) ∧ ∃m(SelfOperatingMechanism(m) ∧ hasComponentPartAtAllTimes(x,m)) ∧ ∃c(EnergyIndependentOperationCapability(c) ∧ bearerOf(x,c)))
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: SelfOperatingValve
<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_0000026 rdf:type owl:Class ; # FlowControlFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000520 # FlowControlProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000520 # FlowControlProcess
] ;
rdfs:label "flow control function"@en ;
rdfs:label "função de controle de fluxo"@pt-br .
### Process type
:COPI_0000520 rdf:type owl:Class ; # FlowControlProcess
rdfs:subClassOf :COPI_0000010 ; # FlowControl
rdfs:label "flow control process"@en ;
rdfs:label "processo de controle de fluxo"@pt-br .
:COPI_0000010 rdf:type owl:Class . # FlowControl
:COPI_0000520 # FlowControlProcess
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: SelfOperatingValve
:COPI_0000149 rdf:type owl:Class ; # SelfOperatingValve
rdfs:subClassOf :COPI_0000077 ; # Valve
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000026 # FlowControlFunction
] ;
rdfs:label "self operating valve"@en ;
rdfs:label "válvula auto-operante"@pt-br ;
iof-av:naturalLanguageDefinition "A self-operating valve is a valve that includes an internal means of operation (such as spring, gravity, fluid pressure, or counterbalance) and does not depend on an external source of energy for its actuation."@en ;
skos:definition "A self-operating valve is a valve that includes an internal means of operation (such as spring, gravity, fluid pressure, or counterbalance) and does not depend on an external source of energy for its actuation."@en ;
iof-av:naturalLanguageDefinition "Uma válvula auto-operante é uma válvula que inclui um mecanismo interno de operação (como mola, gravidade, pressão do fluido ou contrapeso) e não depende de uma fonte externa de energia para seu acionamento."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every self-operating valve is a valve that has a self-operating mechanism as component part at all times and bears the capability of energy-independent operation."@en ;
iof-av:firstOrderLogicAxiom "∀x(SelfOperatingValve(x) → Valve(x) ∧ ∃m(SelfOperatingMechanism(m) ∧ hasComponentPartAtAllTimes(x,m)) ∧ ∃c(EnergyIndependentOperationCapability(c) ∧ bearerOf(x,c)))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Using necessary conditions because this is a constructive type defined by physical configuration (self-operating mechanism). Under OWA, any valve with an internal operating mechanism might be classified as self-operating even if it has additional external actuators or specialized applications. Domain expert validation needed to confirm structural differentia is sufficient."@en ;
skos:definition "[ISO 15926-4] A <SELF-OPERATING VALVE> is an <INSTRUMENTATION FUNCTION> and a <VALVE> that includes a means of operation (e.g. spring / gravity / fluid pressure / counter balance), and is not depending on an external source of energy"@en ;
skos:definition "[CFIHOS] A valve that includes a means of operation (e.g. spring / gravity / fluid pressure / counter balance), and is not depending on an external source of energy."@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
FlowControlFunction
⊑ DesignedFunction
Realized in
FlowControlProcess
⊑ FlowControl
As a valve, it inherits the generic flow control function. The self-operating mechanism is not a distinct function but a means of realizing the same flow control function without external energy.
✓
Expert review — Accepted
2
Genus Determination
Valve
Both sources explicitly classify this as a VALVE. The parent_candidates list shows 'VALVE' as already enriched in our ontology. This is the most specific appropriate superclass - self-operating valve is a specialized type of valve.
✓
Expert review — Accepted
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
Every self-operating valve must have the self-operating mechanism as its defining component, plus the basic valve components inherited from the genus.
✓
Expert review — Accepted
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— any phase
Outputs (O)
PortionOfFluid
— controlled flow rate or pressure
Transformation (T)
flow rate or pressure regulation without external energy input
Same basic fluid control signature as other valves, but the transformation is achieved through internal mechanisms rather than external actuation.
✓
Expert review — Accepted
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.
Using necessary conditions because this is a constructive type defined by physical configuration (self-operating mechanism). Under OWA, any valve with an internal operating mechanism might be classified as self-operating even if it has additional external actuators or specialized applications. Domain expert validation needed to confirm structural differentia is sufficient.
✓
Expert review — Accepted
Cross-Standard Observations
Both ISO 15926 and CFIHOS provide nearly identical definitions, with ISO 15926 additionally classifying it as an INSTRUMENTATION FUNCTION. This dual classification suggests self-operating valves often serve process control roles while maintaining energy independence.