配管0.04MPaの逆止弁はどう選ぶか
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圧力は非常に低く、現在使用されているスプリング式の16キログラムのものでは、配管内でバルブ本体や弁板が衝突し、危険です。なぜなら配管内には可燃性ガスがあり、さらに腐食性もあるからです。 超低圧逆止弁は使えますか？
口径はDN80とDN100です
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