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Definition of Demand valve
1. Noun. A mechanism in a diving regulator which controls the supply of gas by opening to provide flow when the user inhales, and shuts off supply when inhalation stops. ¹
¹ Source: wiktionary.com
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1. Noun. A mechanism in a diving regulator which controls the supply of gas by opening to provide flow when the user inhales, and shuts off supply when inhalation stops. ¹
¹ Source: wiktionary.com