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CONSTRUCTION FIGHTS (mm)
   
GI Series
High-Vacuum Butterfly Valve

GI high- vacuum butterfly valve is used toconnect or cut off the airflow in the vacuum pipeline. The applicable media include clean air or non-corrosive gases.
  Main Technical Performance
 
Vacuum Range: 105~6.7x10-5Pa
Valve Leak Rate: ≤1.3x10-5 Pa.L/S

Applicable Temperature :

-25~+80℃(NBR)
-30~+150℃(fluorine rubber)
Mounting state: Any
Angle Opening : 0-90°(DN32-DN200每15°一档共6档,DN250-DN500无级调节)
   
  Materials of Main Parts
  Valve Body , disc and stem: carbon steel or stainless steel
Sealing element: NBR or fluorine rubber
   
Outling and Connection Dimensions (mm)(JB919)