Jisho

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Noun
1. safety valve
Wikipedia definition
2. Safety valveA safety valve is a valve mechanism for the automatic release of a substance from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set of pressure safety valves (PSV) or pressure relief valves (PRV). The other parts of the set are relief valves, safety relief valves, pilot-operated relief valves, low pressure safety valves, and vacuum pressure safety valves.
Read “Safety valve” on English Wikipedia
Read “安全弁” on Japanese Wikipedia
Read “Safety valve” on DBpedia
Other forms
安全瓣 【あんぜんべん】
Notes
安全瓣: Out-dated kanji or kanji usage.

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