GI手動真空蝶閥用途和使用范圍：
系列是在1.3×10-5～3×105Pa的真空系統中用來開啟或隔斷氣流的閥門。
GI手動真空蝶閥的主要性能：
GI手動真空蝶閥漏率：≤1.3×10-9Pa.M3/S;
GI手動真空蝶閥適用壓力范圍：1.3×10-5Pa～3×105Pa;
GI手動真空蝶閥工作溫度：氟橡膠-25℃～+150℃；
GI手動真空蝶閥安裝位置：任意；
GI手動真空蝶閥閥板兩側壓力差對閥門開、關無關；
GI手動真空蝶閥壽命：≥10000次。
GI手動真空蝶閥原理：
閥桿插入體內，閥板固定在閥桿上，轉動900達到開關目的。
GI手動真空蝶閥特點：
GI系列是經過一系列改進過的蝶閥：
閥門能承受正壓力；
閥桿上下不竄動；
開、關有限位結構，閥板有鎖定裝置;
GI手動真空蝶閥主要零件材料：
體、桿、板 不銹鋼、碳鋼鍍鎳；
密封件 氟橡膠、ding腈膠。
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