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.
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主要技術性能 Main Technical Performance
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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℃(橡膠) -30~+150℃(氟橡膠)
氣源壓力:Annoy pressure
0.4~0.6MPa
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主要零件材料 Materials of Main Parts
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閥體、閥蓋、閥桿:鋁合金、碳鋼或不銹鋼 密封件:橡膠、氟橡膠、波紋管(軸封)。
Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel Sealing element: NBR, Viton, bellows(shaft seal)
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