What is the difference between different valves? For example: the difference between gate valve and butterfly valve, the difference between ball valve and butterfly valve, the difference between ball valve and gate valve, etc. Let's introduce the differences between different valves!

闸阀与蝶阀的区别

Difference between gate valve and butterfly valve

动作方式的区别：闸阀属于直行程阀门，即阀杆带动阀板做上下垂直运动，完成闸阀的启闭所以闸阀的流阻小，但是因其开启高度较高，故启闭速度较慢。而蝶阀属于角行程阀门，即蝶阀的阀板围绕阀轴做90°旋转，完成蝶阀的启闭动作。

Difference in action mode: the gate valve is a straight stroke valve, that is, the valve stem drives the valve plate to move vertically up and down to complete the opening and closing of the gate valve, so the flow resistance of the gate valve is small, but the opening and closing speed is slow due to its high opening height. The butterfly valve is an angle stroke valve, that is, the valve plate of the butterfly valve rotates 90 ° around the valve axis to complete the opening and closing action of the butterfly valve.

作用、用途的区别：闸阀流阻小，密封性能好，闸阀阀板和介质流向是垂直角度，如果闸阀在阀板开关不到位，介质对阀板的冲刷使阀板颤动，易照成闸阀密封损坏。所以多用于要求密封严格并且不需要频繁启闭的管道做截止用，而不适合做调节管道介质参数的作用。因为启闭速度较慢，也不适用紧急切断的场合。闸阀使用工况范围很广，在高温、低温、高压、低压等工况都可以使用，在截止的场合使用寿命长。

Difference between function and purpose: the gate valve has small flow resistance and good sealing performance. The flow direction of the gate valve plate and the medium is a vertical angle. If the gate valve is not opened and closed in place on the valve plate, the scouring of the medium on the valve plate will make the valve plate vibrate, which is easy to damage the seal of the gate valve. Therefore, it is mostly used for cut-off of pipelines that require strict sealing and do not need to be opened and closed frequently, and is not suitable for regulating pipeline medium parameters. Because the opening and closing speed is slow, it is not suitable for emergency cut-off. The gate valve can be used in a wide range of working conditions, such as high temperature, low temperature, high pressure and low pressure. It has a long service life in the cut-off situation.

球阀和蝶阀的区别

Difference between ball valve and butterfly valve

选型和应用上的区别：通常小口径(一般指DN50以下)选用螺纹球阀比较经济，DN50以上球阀一般采用法兰连接，因为加工工艺和材料的原因大口径球阀都比较昂贵，但是因为球阀密封性和本身的流量特性在一些行业应用广泛,比如造纸工业、天然气行业以及高压领域等等。蝶阀一般用于大口径场合(通常指DN50以上)，结构简单、相对低廉，压力一般在PN16以下(偏心蝶阀一般压力在PN40以下)，和球阀相比蝶阀的密封性能较差。

Differences in type selection and application: generally, threaded ball valves with small diameter (generally below DN50) are more economical, and ball valves above DN50 are generally connected with flanges. Large diameter ball valves are more expensive due to processing technology and materials. However, because of the tightness and flow characteristics of ball valves, they are widely used in some industries, such as paper industry Natural gas industry and high pressure field, etc. Butterfly valve is generally used in large-diameter occasions (usually above DN50), with simple structure and relatively low price. The pressure is generally below PN16 (eccentric butterfly valve is generally below PN40). Compared with ball valve, the sealing performance of butterfly valve is poor.

球阀和闸阀的区别

Difference between ball valve and gate valve

密封面的区别：球阀的密封面是球面;闸阀的密封面是平面。

Difference of sealing surface: the sealing surface of ball valve is spherical; The sealing surface of the gate valve is flat.

运动方式的区别：球阀的阀芯是绕自己轴线作旋转运动的;闸阀的阀板是沿轴线作升降运动的。

The difference of motion mode: the spool of the ball valve rotates around its own axis; The valve plate of the gate valve moves up and down along the axis.

功能上的区别：闸阀可以通过开启度调节流量;球阀则不便于做到这一点。

Functional difference: the gate valve can adjust the flow through the opening; Ball valves are not easy to do this.

以上就是小编为大家介绍的关于不用阀门之间的却区别介绍，希望可以帮助到您，更多精彩内容可以点击//m.rabieb.com联系在线客服进行解答。

The above is the difference between not using valves introduced by Xiaobian. I hope it can help you. More wonderful contents can be clicked //m.rabieb.com Contact online customer service for answers.