高真空氣動擋板閥在真空系統中作切斷或接通氣流之用。 永嘉縣科本真空閥門廠的高真空氣動擋板閥以壓縮空氣為動力，通過控制氣動元件來改變氣路方向，執行氣缸驅動使擋板閥做啟閉運動。 氣動高真空擋板閥適用的工作介質為空氣及非腐蝕性氣性。

GDQ型氣動高真空擋板閥 Pneumatic High Vacuum Flapper Valve

GDQ型氣動高真空擋板閥是通過電磁換向閥改變氣路方向，控制執行氣缸驅動閥門作啟閉運動。GDQ-J/S型高真空氣動擋板閥用于接通或切斷真空管路中的氣流。GDQ-J/S型高真空氣動擋板閥適用介質為純凈空氣和非腐蝕性氣體。GDQ-J/S型高真空氣動擋板閥帶反饋信號裝置。 

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.

主要技術性能 Main Technical Performance

適用范圍：Applicability 　10⁵～1.3×10^-4Pa(軸封為橡膠) ；　10⁵～1.3×10^-5Pa(軸封為波紋管)
閥門漏率：Valve Leak Rate 　≤1.3×10^-4Pa.L/S.(軸封為橡膠) ；　≤1.3×10^-5Pa.L/S.(軸封為波紋管)
適用溫度：Applicable Temperature 　-25～+80℃(丁腈橡膠) ；　-30～+150℃(氟橡膠)
氣源壓力：Annoy pressure 　0.4～0.6MPa

主要零件材料 Materials of Main Parts

閥體、閥蓋、閥桿：鋁合金、碳鋼或不銹鋼 Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
密封件：丁腈橡膠、氟橡膠、波紋管(軸封)。Sealing element: NBR, Viton, bellows(shaft seal)