... valve stem guide 阀杆导管 valve stem packing 阀杆密封填料 valve stem unbalance 阀杆不平衡力 ...
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... valve-stem leakoff 阀杆引漏 valve stem packing 阀杆填料 valve-stem packing leakage 阀杆密封泄漏 ...
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metallic valve stem packing 阀杆金属填密
valve-stem packing leakage 阀杆密封漏泄
Expanded PTFE Valve Stem Packing 膨胀聚四氟乙烯阀杆填料
metallic valve-stem packing 阀杆金属填密
Valve rod with valve lids between bring fall airproof structure, Convenients for valve bring press replacing valve stem packing.
阀杆与阀盖之间带倒密封结构，便于阀门带压更换阀杆填料。
The same force tends to reduce the seal on the pressure side with the result that bonnet cavity and the valve stem packing are nearly always subjected to maximum pipeline pressure.
而压力侧以相同的力削弱了密封，这样使阀盖腔室和阀杆填料几乎总是承受最大管道压力。
The stem seal of a feed water control valve uses expanded graphite packing in order to produce friction and to economize on energy for the control valve working.
电站锅炉给水调节阀的阀杆密封采用柔性石墨填料，既降低了摩擦力，又为调节阀的运行节约了能源。
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