GI high vacuum butterfly valve is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases.
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主要技术性能 Main Technical Performance
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适用范围：Applicability
105～1.3×10-4Pa
阀门漏率：Valve Leak Rate
≤1.3×10-4Pa.L/S.
适用温度：Applicable Temperature
-25～+80℃（丁腈橡胶） -30～+150℃（氟橡胶）
安装方向：Mounting Direction
任意
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主要零件材料 Materials of Main Parts
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阀体、阀盖、阀杆：碳钢或不锈钢 密封件：丁腈橡胶、氟橡胶。
Body, bonnet and stem: carbon steel or stainless steel Sealing element: NBR, Viton
CONSTRUCTION FIGHTS（mm）
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外形及连接尺寸（mm）（JB919） Overall and Connection Dimensions（mm）
