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Pneumatic High Vacuum Flapper Valve
�� 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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Main Technical Performance
�m�÷�����Applicability ��105��1.3×10-4Pa(�S������z)
��105��1.3×10-5Pa(�S��鲨�y��)
���y�T©�ʣ�Valve Leak Rate ��≤1.3×10-4Pa.L/S.(�S������z)
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���m�Üضȣ�Applicable Temperature ��-25��+80��(�������z)
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����Դ������Annoy pressure ��0.4��0.6MPa
��Ҫ�������Materials of Main Part
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Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows(shaft seal)CONSTRUCTION FIGHTS(mm)
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Pneumatic High Vacuum Flapper Valve
�� 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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Main Technical Performance
�m�÷�����Applicability ��105��1.3×10-4Pa(�S������z)
��105��1.3×10-5Pa(�S��鲨�y��)
���y�T©�ʣ�Valve Leak Rate ��≤1.3×10-4Pa.L/S.(�S������z)
��≤1.3×10-5Pa.L/S.(�S��鲨�y��)
���m�Üضȣ�Applicable Temperature ��-25��+80��(�������z)
��-30��+150��(�����z)
����Դ������Annoy pressure ��0.4��0.6MPa
��Ҫ�������Materials of Main Part
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Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows(shaft seal)CONSTRUCTION FIGHTS(mm)
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