The check seats are attached to the cage with a bayonet type locking arrangement. 止回笼上的止回阀座配置一个卡口型锁定装置。
Increased security concerns and critical sequencing of processes have prompted the use of locking devices and interlocks for valves. 为了加强工艺流程顺序中重要和关键部分的安全性，需要采用阀门的锁定装置和连锁装置。
