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氣動氟襯裡球閥

球閥是工業管道系統中廣泛使用的切割和控制裝置，它使用球作為開口和關閉元件，以實現流體流量控製或通過90°旋轉進行調整。它的核心結構包括一個帶有整個孔的球，閥座，閥體和駕駛裝置。當球孔與管道對齊時，它會完全打開，當旋轉後的孔與管道未對準時，它會關閉。它易於操作和快速打開和關閉。 ​
核心類型和特徵
浮球類型：球漂浮，閥座是固定的，將球壓在閥座上，介質的壓力以實現密封。它適用於低壓小直徑方案（DN≤200）。 ​
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固定球類型：球固定在閥莖上，閥座浮子浮動。球由中型壓力或彈簧力緊緊按下，該壓力具有更好的密封性能，適用於高壓大直徑工作條件（DN≥300）。 ​
軌道球閥：球沿特定軌道旋轉以減少摩擦和磨損，延長使用壽命，並且適用於含有顆粒的介質。 ​
性能優勢
可靠的密封：金屬閥座椅或非金屬閥座椅，例如聚氟乙烯（PTFE）可以實現零洩漏，並且某些型號符合API 6D類VI標準。 ​
極低的流動性：孔結構與管道的內徑相似，流體電阻較低，適用於高流速情景（例如天然氣運輸）。 ​
方便的維護：模塊化設計允許在線更換閥座和密封件，從而減少了停機時間。 ​
對工作條件的強大適應性：溫度範圍較大（-200〜+650℃），它可以適應各種培養基，例如酸和鹼，石油和氣體，泥漿，等等。
典型的應用
石油和天然氣：長距離管道，井口控制的緊急切口； ​
化學工業：反應堆中型開關，腐蝕性液體調節； ​
供水和排水系統：水處理廠管道控制，建築防火系統； ​
在權力領域：核電廠中冷卻液電路和蒸汽系統的流動調節。 ​
球閥具有簡單的結構，可靠的密封和方便的操作，已成為工業自動化控制中必不可少的流體控制組件，尤其是在需要快速開放和關閉或嚴格密封的情況下。
June 17, 2025
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