YDK43H液壓快關(guān)止回蝶閥主要安裝于汽輪機抽汽管路,高爐煤氣或焦爐煤氣余壓發(fā)電裝置(TRT)供氣管路等高安全等級系統(tǒng),作緊急切斷閥用;在系統(tǒng)出現(xiàn)危機工況時,在0,3``0,8秒鐘內(nèi)實施緊急關(guān)閥,實現(xiàn)管路的可靠截止,有效防止汽機尾部蒸汽和冷凝水倒灌,保護汽輪機組的安全或當煤氣管路的壓力下降時緊急切斷煤氣管路,防止煤氣回火事故發(fā)生。我公司生產(chǎn)的液控快關(guān)閥又分為;全液壓蓄能器型快關(guān)閥及液壓彈簧蓄能型快關(guān)閥。
YDK43H液壓快關(guān)止回蝶閥產(chǎn)品型號說明:
YxK D 7 ※ 4 3 ※ – ※ ※
閥門材料: C 碳鋼 ;P,不銹鋼;I鉻鉬鋼
公稱壓力: 單位: kg/㎝2
密封材料: H 不銹鋼,W本體材料
結(jié)構(gòu)形式: 3 三偏心結(jié)構(gòu)(新標準)
連接方式: 法蘭連接
P 電氣為PLC智能控制
驅(qū)動方式: 液壓傳動
產(chǎn)品類別: 蝶閥
功能特征: YxK蓄能快關(guān);YtK彈簧快關(guān)
產(chǎn)品結(jié)構(gòu)及特點:
由閥門本體,傳動執(zhí)行機構(gòu),液控裝置,電控系統(tǒng)等四大部分組成,其主要結(jié)構(gòu)如下:
1, 電液聯(lián)動快關(guān)蝶閥的閥門本體根據(jù)管路系統(tǒng)不同的壓力溫度等級要求采用三偏心金屬硬密封蝶閥或彈性金屬硬密封閘閥,這兩種閥門是目前世界上較為*和流行的閥門,采用這類閥門可有效密封且啟閉閥門力矩小,使用壽命長,維修方便。(詳見三偏心金屬硬密封蝶閥有關(guān)資料)。
2, 電液聯(lián)動快關(guān)蝶閥的閥門材料選用及適用工況
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