stem holder
... flange mounted 凸缘架 stem holder 阀杆支撑 trunnion 固定(球阀) ...
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在开启期间,阀杆与楔板的连接位于阀座表面支撑内。既降低重量,又增加稳固性。
Stem to wedge connection is inside the seating faces supporting the wedge ears during opening. More robust with less mass.
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对于长阀杆的延长装置,需要提供适当的和坚固的支撑座。
Adequate and rigid support must be provided for long stem extension units.
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