Last Updated
：2025/11/30
suction valve
Noun
Japanese Meaning
過熱したボイラーが運転停止後に冷却される際、内部圧力が大気圧以下になると発生する真空崩壊のリスクを回避するため、逆方向からの流入を防ぐ自動作動の非逆止弁。
（ plural ）
Quizzes for review
An automatic non-return valve that opens when the boiler is at less than atmospheric pressure so as to avoid any risk of vacuum collapse when a hot boiler is allowed to cool down out of service.
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suction valve
The maintenance team inspected the suction valve to ensure the automatic non-return mechanism would prevent vacuum collapse when the boiler cooled down out of service.
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The maintenance team inspected the suction valve to ensure the automatic non-return mechanism would prevent vacuum collapse when the boiler cooled down out of service.
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