The check seats are attached to the cage with a bayonet type locking arrangement. 止回籠上的止回閥座配置一個卡口型鎖定裝置。
Increased security concerns and critical sequencing of processes have prompted the use of locking devices and interlocks for valves. 為了加強工藝流程順序中重要和關鍵部分的安全性,需要採用閥門的鎖定裝置和連鎖裝置。