Self-sealing valve stem 自密封阀杆
Stem steam leakage from main stop valve and governor valve, drainage of front and rear steam sealing, etc shall all be directed into the conduit, and then be discharged into the gutter.
主汽门阀杆及调节汽阀阀杆漏气，前后汽封疏水等都引入集水管再排入地沟。
Introducing the properties of slab gate valve, analyzing the characteristics of the stem sealing, proposing the methods of improving packing structure.
介绍了平板闸阀的性能，分析了其阀杆密封的特点，提出了改进填料结构的方法。
The valve stem and sealing surfaces are completely protected from dirt and corrosion by the stem cap, whether the valve is in an open or closed position.
不管是在阀门开启位置，还是关闭位置，阀杆和密封面有阀杆盖帽的保护，能防止污物入内，防止腐蚀。
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