QF Series pneumatic high vacuum angle valve

Usage ：

   Used in low vacuum and high vacuum system; equipped with the backing pump of the ultra-high vacuum system.

Features ：

   Valve head viton ring sealed

   Rotating flange ,easy to be connected

   Sealed with welded below.

   Dual pneumatic, with a signal in the switch

Specification ：

   Leakage ：

    Valve body ：≤ 1X10 -12Pa.m 3/s ；

    Valve holder ：≤ 1X10 -12Pa.m 3/s ；

   Pressure range ： from ultra-high vacuum to atmospheric pressurebarometric

  Life ： rational usage ,more than5000times

   Interface flange ： copper gasket

   Bake temperature::start <180 ℃ stop<150 ℃

   Act method ： pneumatic

   Pneumatic act ： dual pneumatic

   Gas source pressure 6~8Kgf

   Signal position ： switch on /off

   Type signal :magnetic signal