陕西西安空压机知名厂

球阀在管路中主要用来做切断、分配和改变介质的流动方向。球阀是近年来被广泛采用的一种新型阀门，它具有以下优点：

Ball valve in the pipeline is mainly used to do cutting, distribution and change the direction of media flow. Ball valve is widely used in recent years, a new type of valve, it has the following advantages:

1． 流体阻力小，其阻力系数与同长度的管段相等。

1., the fluid resistance is small, and the resistance coefficient is equal to the pipe length of the same length.

2． 结构简单、体积小、重量轻。

2. simple structure, small size, light weight.

3． 紧密可靠，目前球阀的密封面材料广泛使用塑料、密封性好，在真空系统中也已广泛使用。

3., close and reliable, the ball valve sealing surface materials widely used in plastic, good sealing, vacuum system has been widely used.

4． 操作方便，开闭迅速，从全开到全关只要旋转90°，便于远距离的控制。

4. easy operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control.

5． 维修方便，球阀结构简单，密封圈一般都是活动的，拆卸更换都比较方便。

5. convenient maintenance, ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.

6． 在全开或全闭时，球体和阀座的密封面与介质隔离，介质通过时，不会引起阀门密封面的侵蚀。

6. in the full open or full closed, the ball and seat sealing surface and media isolation, the media through, will not cause the valve sealing surface erosion.

7． 适用范围广，通径从小到几毫米，大到几米，从高真空至高压力都可应用。 球旋转90度时，在进、出口处应全部呈现球面，从而截断流动。

7., a wide range of applications, diameter from a few millimeters, large to several meters, from high vacuum, high pressure can be applied. When the ball rotates 90 degrees, the spherical surface should be presented at the inlet and outlet so as to cut off the flow.

球阀只需要用旋转90度的操作和很小的转动力矩就能关闭严密。完全平等的阀体内腔为介质提供了阻力很小、直通的流道。通常认为球阀最适宜直接做开闭使用，但近来的发展已将球阀设计成使它具有节流和控制流量之用。球阀的主要特点是本身结构紧凑，易于操作和维修，适用于水、溶剂、酸和天然气等一般工作介质，而且还适用于工作条件恶劣的介质，如氧气、过氧化氢、甲烷和乙烯等。球阀阀体可以是整体的，也可以是组合式的。

The ball valve only needs to rotate 90 degrees of operation and very small rotation torque can be closed tight. Completely equal body cavity provides the medium with small resistance, straight through the flow channel. It is generally believed that the ball valve is the most suitable for opening and closing, but the development of the ball valve has been designed to make it throttling and flow control purposes. The main features of the valve itself is compact, easy operation and maintenance for water, solvents, acids, and natural gas general working media, but also applies to poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be integrated, can also be a combination of.

球阀是一种比较新型的球阀类别，它有着自身结构所独有的一些优越性，如开关无摩擦，密封不易磨损，启闭力矩小。这样可减小所配执行器的规格。配以多回转电动执行机构，可实现对介质的调节和严密切断。广泛适用于[wiki]石油[/wiki]、[wiki]化工[/wiki]、城市给排水等要求严格切断的工况。

Ball valve is a relatively new type of ball valve, it has its own unique advantages of the structure, such as the switch without friction, sealing is not easy to wear, small open and close torque. This reduces the size of the actuator to be executed. With multi rotary electric actuator, medium adjustment and close cutting can be realized. Widely used in [wiki] petroleum [/wiki], [wiki] chemical [/wiki], urban water supply and drainage and other strictly cut off working conditions.