高真空气动挡板阀在真空系统中作切断或接通气流之用。 永嘉县科本真空阀门厂的高真空气动挡板阀以压缩空气为动力，通过控制气动元件来改变气路方向，执行气缸驱动使挡板阀做启闭运动。 气动高真空挡板阀适用的工作介质为空气及非腐蚀性气性。

气动高真空挡板阀 Pneumatic High Vacuum Flapper Valve

GDQ型气动高真空挡板阀是通过电磁换向阀改变气路方向，控制执行气缸驱动阀门作启闭运动。GDQ-J/S型高真空气动挡板阀用于接通或切断真空管路中的气流。GDQ-J/S型高真空气动挡板阀适用介质为纯净空气和非腐蚀性气体。GDQ-J/S型高真空气动挡板阀带反馈信号装置。 

GDQ pneumatic high vacuum flapper valve uses solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the valve opened and closed. It is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. With signal feedback device.

气动高真空挡板阀主要技术性能 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)
气源压力：Annoy pressure 　0.4～0.6MPa

气动高真空挡板阀主要零件材料 Materials of Main Parts

阀体、阀盖、阀杆：铝合金、碳钢或不锈钢 Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
密封件：丁腈橡胶、氟橡胶、波纹管(轴封)。Sealing element: NBR, Viton, bellows(shaft seal)

外形及连接尺寸(mm) Overall and Connection Dimensions

快卸法兰连接气动高真空挡板阀

活套法兰连接气动高真空挡板阀