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