不锈钢焊接式三片式球阀

 球阀（ball valve）是由旋塞阀演变而来，它的启闭件是个球体，球体绕阀体中心线作旋转90度来达到开启、关闭的一种阀门。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：

 1.流体阻力小，其阻力系数与同长度的管段相等。

 2.结构简单、体积小、重量轻。

 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。

 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。 

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。 
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。

 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。

为确保您的使用要求，订货时请详细说明：

 一、新项目用户请提供设计院设计的型号，更换配件用户请提供之前使用的产品型号 二、如没具体型号请提供：

1.使用介质及温度；

2.工作压力；

3.传动方式；

4.连接方式；

5.结构形式；

6.公称通径等

Stainless steel welded three-piece ball valve

The ball valve is evolved from a plug valve. Its opening and closing part is a sphere, and the sphere rotates 90 degrees around the center line of the valve body to open and close a valve. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Ball valve is a new type of valve that has been widely used in recent years. It has the following advantages:

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

2. Simple structure, small size and light weight.

3. Tight and reliable. At present, the sealing surface material of ball valve is widely used plastic, which has good sealing performance, and has also been widely used in vacuum system.

4. Easy to operate, open and close quickly, just rotate 90° from fully open to fully closed, which is convenient for long-distance control.

5. It is easy to maintain, the ball valve has a simple structure, the sealing ring is generally movable, and it is more convenient to disassemble and replace.6. When fully open or fully closed, the sealing surfaces of the ball and the valve seat are isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface.

7. Wide range of applications, diameters ranging from small to several millimeters, large to several meters, and can be applied from high vacuum to high pressure.

To ensure your usage requirements, please specify when ordering:

For new project users, please provide the model designed by the design institute, and for replacement parts, please provide the product model used before. 2. If there is no specific model, please provide:

1. Use medium and temperature;

2. Work pressure;

3. Transmission mode;

4. Connection method;

5. Structural form;

6. Nominal diameter, etc.

实物图片：卫生级304不锈钢焊接式三片式球阀生产厂家

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