Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Clapet de dégazage-fr#Sense
Vapour relief valve-en#Sense
Entgasungsventil-de#Sense
Ontgassingsklep-nl#Sense
Ανακουφιστική βαλβίδα ατμών-el#Sense
Vapor relief valve-en#Sense
Válvula de libertação de vapor-pt#Sense
Dampsikkerhedsventil-da#Sense
Dampoverløbsventil-da#Sense
Valvola di sfiato dei vapori-it#Sense