The serious troubles may be take place when the fouling is generated on main vapor valves, monitor valves and the valve.
若主汽阀、调节阀以及抽汽逆止阀的阀杆上结垢引起卡涩，还可能导致汽轮机发生严重事故。
2
The installation of a strainer ahead of the backflow preventer is recommended to prevent fouling of the check assembly and resultant spillage from the valve during repressurizing.