gate seal 闸门止水 ; 口凝固前 ; 浇口圈
Water Seal Gate Valves 水封闸阀 ; 水封 ; 学习生产水封闸阀 ; 水启闸阀
lock gate seal 闸门密封胶
wicket gate seal 导叶密封
seal gate valve 密封闸阀 ; 硬密封闸阀
ring seal gate 环形闸门 ; 环封闸门
Water Seal Gate ales 水封闸阀
Seal gate 门封
Fluid pressure on one side of the gate presses it against the opposite seat with great force and improves the seal.
闸板压力侧的流体压力使另一侧的阀座受较大的力，提高了密封性。
To increase packing life and provide a superior seal, the gate edges are rounded.
为了延长密封填料的使用寿命，提供超级密封性能，闸板边缘是圆形的。
Now gate valves have been replaced by eccentric metal hard seal ball valves in the construction of some new unit and old unit revamping.
偏心金属硬密封球阀已在一些新装置建设和老装置改造中取代了一部分闸阀而得到应用。
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