本產(chǎn)品的閥蓋填料室具有水密封結(jié)構(gòu)，當(dāng)接口通入壓力0、6-1MPa 的水時，可使系統(tǒng)與 大氣隔離，保證系統(tǒng)具有良好的氣密性。 DS/Z 型系列采用雙閘板雙向彈性密封、啟閉靈活、迅速、密封可靠。

DS 系列水封閥門適用于公稱壓力 ≦10.0MPa ，工作溫度 ≦ 425℃ ，工作介質(zhì)為水、蒸汽、 油田和非腐蝕性氣體的管路上作啟閉裝置用，尤其適用于火電廠汽機真空冷凝系統(tǒng)。

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