GD高真空挡板阀

导读：GD高真空挡板阀■GD型－高真空隔膜阀■GD型高真空挡板阀用于接通或切断真空管路中的气流。适用介质为纯净空气和非腐蚀性气体。高真空挡板阀按轴封结构可分GD-J型…

GD高真空挡板阀

GD型高真空挡板阀用于接通或切断真空管路中的气流。适用介质为纯净空气和非腐蚀性气体。高真空挡板阀按轴封结构可分GD-J型橡胶轴封和GD-J(b)型波纹管轴封两种。按通导形式可分GD-J为角真空球阀通型式，GD-S为带预抽口的三通型式。

GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. According to its shaft seal structure, high vacuum flapper valve is classified into GD-J rubber shaft seal type and GD-J(b)bellows shaft seal type. According to its put-through type, it is classified into GD-J angle type and GD-S three-way type with prepumping.

真空蝶阀主要技术性能

Main Technical Performance

　适用范围：Applicability 　105～1.3×10-4Pa(轴封为橡胶)

　105～1.3×10-5Pa(轴封为波纹管)

　阀门漏率：Valve Leak Rate 　≤1.3×10-4Pa.L/S.(轴封为橡胶)

　≤1.3×10-5Pa.L/S.(轴封为波纹管)

　适用温度：Applicable Temperature 　-25～+80℃(丁腈橡胶)

　-30～+150℃(氟橡胶)

真空挡板阀主要零件材料

Materials of Main Parts

阀体、阀盖、阀杆：铝合金、碳钢真空阀或不锈钢

密封件：丁腈橡胶、氟橡胶、波纹管(轴封)。

Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel

Sealing element: NBR, Viton, bellows(shaft seal) 

CONSTRUCTION FIGHTS(mm)

   外形及连接尺寸(mm)

Overall and Connection Dimensions(mm)