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GDQ
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 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. |
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Main Technical Performance |
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| Vacuum Range： |
105~6.7x10-4Pa(sealing of shaft is NBR or Viton)
105~6.7x10-6Pa(sealing of shaft isBellows) |
| Valve Leak Rate： |
≤1.3x10-4 Pa.L/S(sealing of shaft is NBR or Viton)
≤1.3x10-6 Pa.L/S(sealing of shaft isBellows) |
Applicable Temperature： |
-25~+80℃(NBR）
-30~+150℃(Viton） |
| Actuator Air Pressure ： |
0.4-0.6MPa |
| Mounting state： |
Any |
| Power Voltage： |
Standard ：220v±10%/50Hz，
Special ：AC110V,DC24V |
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Materials of Main Parts |
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Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows (shaft seal) |
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| Overall and Connection Dimensions (mm) |
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