... valve stem connection；气门杆连接 valve stem diameter；气门杆直径 valve stem extension；气门杆伸出部 ...
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intake valve stem diameter 进气门杆直径
exhaust valve stem diameter 排气门柱直径
The Valve Stem Diameter 阀门阀杆直径
The stem has a slightly smaller diameter than the valve bore.
阀杆的直径略小于阀体孔的直径。
Stem material, and strive to stainless steel stem (2cr13), large diameter valves also should be embedded in the package of stainless steel valve stem.
阀杆材质，力求不锈钢阀杆(2cr13)，大口径阀门也应是不锈钢嵌包的阀杆。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
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