Viton is a registered name of DuPont.

氟橡胶为美国杜邦注册名称。

Pressure responsive Viton packing seal arrangement; positive no slack stem action.

形圈十方形圈密封压力装置、阀杆操作时绝对无泄漏；

The valve seal material can be Perfluoroelastomer or Viton, and it is designed to inflate after the valve segment is closed.

阀门密封材料采用全氟弹性材料或氟橡胶，在阀门关闭之后会充气膨胀。

NBR rubber O-rings provide trouble-free operation at standard temperature ranges. For high and low temperature applications Viton or Silicone.

在常温工作条件下使用丁晴橡胶，在高温或低温时采用氟橡胶或硅橡胶。