The closing valve stem and valve seat sealing surface axis vertical.

截止阀的阀杆轴线与阀座密封面垂直.

互联网

Abrasion resistance of sealing surface . outstanding and long - lived deal.

密封面不易磨损,擦伤,密封性较好,寿命较长.

互联网

Flange sealing surface of the pipe welding I should ring.

法兰密封面处的管口也应环焊.

互联网

Valve leakage: leakage caused by over - pressured steam through the sealing surface in normal working pressure.

阀门泄漏: 在设备正常工作压力下,阀瓣与阀座密封面间发生超过允许值的泄漏.

互联网