它具有特殊的整体结构，由阀座，阀瓣和阀杆总成，以及过滤器网等整合在一个整体中，完全能够进行更换维护。
It has special unitized construction which consists of the seat, disc and stem assembly, and strainer screen all together in one unit for complete replacement maintenance.
阀杆也应该在顶部配置方向指示器，用于当手柄拆卸下来时指示阀瓣的位置。
The shaft also shall have a directional indicator on top to indicate disc position when the handle is removed.
阀杆应该是六角形或方形，以确保阀瓣能够灵活旋转，并且完全密封，不会暴露在处理的液体里。
The shaft shall be hexagonal or square to ensure positive rotation of the disc and be totally sealed from exposure to the process liquid.
尼伯科旋启式止回阀可配置外部操纵杆和压铁。操纵杆和压铁用于对阀瓣进行外部控制。
NIBCO swing check valves are available with an outside lever and weight. The lever and weight arrangement is used to maintain exterior control over disc movement.
型号1710平衡阀为暗杆结构，配置抛物线（塞）形阀瓣。
The Fig. 1710 Balancing valve is a non-rising stem design incorporating a parabolic (plug) shaped disc.
为了确保臂杆和阀瓣螺母之间的安全连接，使用了开口销。
To ensure a secure connection between the arm and the disc nut, split pin is used.
不旋转阀杆采用无旋流阀瓣，确保减少扭矩，防止填料受到扭转损坏。
Non rotating stem allows a non-spinning disc, ensures low torque and prevents torsional damage of the packing.
双瓣止回阀主要由阀体、阀瓣、阀杆及弹簧等重要零件组成，并采用薄型轻巧设计。
Double disc check valve consists of body, disc, valve rod and spring and other parts. The valve is designed with slim light weight.
阀杆用花键锁在阀瓣上，以确保旋转灵活。
The shaft is splined to lock into the disc to ensure positive rotation.
操纵杆和压铁用于对阀瓣进行外部控制。
The lever and weight arrangement is used to maintain exterior control over disc movement.
阀瓣打开后，压杆在弹簧作用下旋转一定角度支住阀瓣，使其不能关闭。
When the disc is opened, with the springs at work, the strut rotates to an Angle so as to prop up the disc and keep it from closing.
在阀杆上设计有位置指示器，能够精确地指示阀瓣的位置。
The rising stem design incorporates a graduated positioning for throttling service.
主要由阀体、连接管、缓冲容器、活塞室、阀瓣、阀杆等零件组件。
It is mainly consisted of body, connecting pipe cushion container, piston chamber, disc, valve stem and other parts.
主要由阀体、连接管、缓冲容器、活塞室、阀瓣、阀杆等零件组件。
It is mainly consisted of body, connecting pipe cushion container, piston chamber, disc, valve stem and other parts.
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