... 升杆式（明杆） rising stem （RS） 非升杆式（暗杆） non-rising stem （NRS） 指示器/限位器 indicator/stopper ...
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...ve 冷水工作压力 Cold Working Pressure 圆柱体气缸 Cylinder 直流电 Direct Current 双阀瓣 Double Disc 暗杆 Non-Rising Stem 认 证的产品 Indicates product has been approved by Underwriter's Laboratories, Inc. 真空 Vacuum .
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non-rising stem valve 不升杆式阀 ; 暗杆阀
non-rising stem wedge sluice valve 暗杆楔式闸阀
non rising stem 暗杆闸阀
non-rising stem wedge gate valve 暗杆楔式闸阀
Non Rising Stem Single 暗杆楔式单闸板闸阀
inside screw & non-rising stem 内螺纹非升杆
ISNS Inside screw&Non-rising Stem 内螺纹非升杆
inside screw and non-rising stem 暗杆内螺纹
Non-rising stem NRS 非升杆式
The Fig. 1710 Balancing valve is a non-rising stem design incorporating a parabolic (plug) shaped disc.
型号1710平衡阀为暗杆结构，配置抛物线（塞）形阀瓣。
This arrangement combined with the feature of a non-rising stem assures a positive seal against either steam or water.
这种结构方式具有不上升阀杆的特点，保证了对蒸汽或水都能够达到很好的密封功能。
A floorstand for handwheel actuated valves allows operation from above. Included is handwheel, non-rising stem, fittings, extension, and floorstand with gate position indicator.
用于手轮执行器阀门上的地轴承架可以在上方对阀门进行操作，包括手轮，暗杆，连接件，加长件，以及带闸板位置指示器的地轴承架。
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