안전밸브의 내경
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안전밸브의 명판에는 직경 80/100이라고 적혀 있습니다. 혹시 80은 입구의 직경이고, 100은 출구의 직경인가요?
네, 출구는 보통 입구보다 한 단계 더 큽니다.
전개식, 입구 80, 출구 100.일반적으로 수입은 수출보다 한 단계 또는 그 이상 높음
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