旋塞阀是关闭件或柱塞形的旋转阀，通过旋转90度使阀塞上的通道口与阀体上的通道口相通或分开，实现开启或关闭的一种阀门。 它的阀塞的形状可成圆柱形或圆锥形。在圆柱形阀塞中，通道一般成矩形；而在锥形阀塞中，通道成梯形。这些形状使旋塞阀的结构变得轻巧。最适于作为切断和接通介质以及分流适用，但是依据适用的性质和密封面的耐冲蚀性，有时也可用于节流。
衬里三通旋塞阀 Lining T-Cock Valves
油封式旋塞阀 Lubricated plug valve
填料式旋塞阀 Gland packing plug valve ; Cland packing plug valve
三通旋塞阀 three-way plug valve ; Three-way Stopcock ; three-way plug vingve ; wayplugvalve
四通旋塞阀 four-way plug valve ; four
弯角旋塞阀 angle cock
定位旋塞阀 positioned plug valve
旋塞阀门 plug valve
衬氟旋塞阀 CFFM-G
When the cock valve is rotated at a certain angle,the related openness can be indicated visually on the curves,thus providing an operational experience formula for adjusting the openness of the cock valve.
当旋塞阀旋转某一角度时,可直观地在曲线上查出相应的开度,为旋塞阀开度的调节提供了可操作的经验公式。
参考来源 - 旋塞阀结构流道开度推导及其冲蚀速度分析At present, the research for Kelleyguard which is important tool in blowout preventer internal drill string is weak, so the overall research for the Kelleyguard has both theoretical and engineering significance.
目前,针对内防喷系统中重要工具之一的旋塞阀的研究还很薄弱,因此,展开对旋塞阀的全面研究具有重要的理论意义和工程意义。
参考来源 - 方钻杆旋塞阀本体的有限元分析与研究·2,447,543篇论文数据，部分数据来源于NoteExpress
旋塞阀的设计，即使在多年停用之后，也能确保启用。
The piston valve design ensures actuation even after many years without operation.
介绍了基体采用45钢，表面喷涂工程陶瓷的旋塞阀芯的研制情况。
The development of the ceramic coat plug valve core which substrate USES 45 steel is introduced.
也可以安装这个系列来调节如冲洗阀和快速旋塞阀这类快速反应设备的水流。
This Series is also installed to regulate the flow of water to such fast acting equipment as flushometers and snap cocks.
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