bn:00181387n
Noun Concept
Categories: Valves, Physics stubs
EN
sun valve  Sun-valve  Sunvalve
EN
A sun valve is a flow control valve that automatically shuts off gas flow during daylight. Wikipedia
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EN
A sun valve is a flow control valve that automatically shuts off gas flow during daylight. Wikipedia
valve used to automatically control gas flow in lighthouses Wikidata
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