球阀，作为一种常见的阀门类型，在流体控制系统中扮演着举足轻重的角色。特别是在商业大楼和公共建筑的暖通制冷系统中，球阀的通断和流量调节控制功能发挥着不可替代的作用。那么，球阀究竟属于什么阀门呢？

　　Ball valves, as a common type of valve, play a crucial role in fluid control systems. Especially in the HVAC systems of commercial and public buildings, the on/off and flow control functions of ball valves play an irreplaceable role. So, what kind of valve does a ball valve belong to?

　　球阀属于旋转式阀门的一种。

　　Ball valves are a type of rotary valve.

　　【一】它的工作原理是通过球体在阀体内的旋转来控制流体的通断和流量大小。

　　【1】 Its working principle is to control the on/off and flow rate of fluid through the rotation of a sphere inside the valve body.

　　①　当球体旋转至与阀体通道重合时，阀门处于开启状态，流体可以顺利通过；

　　① When the sphere rotates to coincide with the valve body channel, the valve is in the open state and the fluid can pass smoothly;

　　②　而当球体旋转至与阀体通道垂直时，阀门关闭，流体被截断。

　　② When the sphere rotates perpendicular to the valve body channel, the valve closes and the fluid is cut off.

　　这种旋转式的操作方式使得球阀具有开关迅速、操作便捷的特点。

　　This rotary operation method makes the ball valve have the characteristics of quick opening and easy operation.

　　【二】在阀门的分类中，球阀还可以根据其结构和用途进一步细分。比如，

　　【2】 In the classification of valves, ball valves can be further subdivided based on their structure and purpose. for example,

　　①　根据球体与阀座之间的密封形式，球阀可以分为浮动球阀和固定球阀；

　　① According to the sealing form between the ball and the valve seat, ball valves can be divided into floating ball valves and fixed ball valves;

　　②　根据驱动方式的不同，又可以分为手动球阀、气动球阀、电动球阀等。

　　② According to the different driving methods, it can be divided into manual ball valves, pneumatic ball valves, electric ball valves, etc.

　　而这款艾德默·ZEASY甄易系列电动球阀，正是球阀的一种变体，它通过电动执行器驱动球体旋转，实现了对流体通断和流量的远程准确控制。

　　And this Edmo ZEASY Zhenyi series electric ball valve is a variant of the ball valve, which drives the ball to rotate through an electric actuator, achieving remote and accurate control of fluid on/off and flow rate.

　　【三】这款电动球阀的设计特点

　　【3】 The design features of this electric ball valve

　　①　在于其内置一体式配流碟，这种设计不仅使得阀门在面临反向压差时仍能稳定工作，而且还赋予了阀门执行器手动功能，增强了其操作的灵敏性和可靠性。在商业大楼和公共建筑的暖通制冷系统中，热水和冷冻水的通断和流量调节是至关重要的。这款电动球阀通过准确的流量控制，确保了系统的高能运行和温度的稳定性。

　　① Due to its built-in integrated distribution disc, this design not only ensures stable operation of the valve when facing reverse pressure differentials, but also endows the valve actuator with manual function, enhancing its sensitivity and reliability in operation. The on-off and flow regulation of hot and chilled water is crucial in the HVAC systems of commercial and public buildings. This electric ball valve ensures high-energy operation and temperature stability of the system through accurate flow control.

　　②　此外，该电动球阀采用石墨增强PTEE材料作为阀座，这种材料在锈水环境中具有突出的无泄漏寿命和密封性能，大大提高了阀门的使用寿命和安全性。

　　② In addition, the electric ball valve adopts graphite reinforced PTEE material as the valve seat, which has outstanding leak free life and sealing performance in rusty water environment, greatly improving the service life and safety of the valve.

　　③　配流碟内置一体式的设计，使得阀门在统一孔径下能够提供不同的流量系数（KV）值，从而实现了等百分比流量特性，这对于准确的温度控制来说至关重要。

　　③ The integrated design of the distribution plate allows the valve to provide different flow coefficient (KV) values under a uniform aperture, thereby achieving equal percentage flow characteristics, which is crucial for accurate temperature control.

　　综上所述

　　In summary

　　①　球阀作为一种旋转式阀门，在流体控制系统中具有广泛的应用。

　　① Ball valves, as a type of rotary valve, have a wide range of applications in fluid control systems.

　　②　而这款电动球阀，以其独特的设计和卓异的性能，在商业大楼和公共建筑的暖通制冷系统中发挥着不可或缺的作用。无论是其快速的开关速度、便捷的操作方式，还是其准确的流量控制、可靠的安全性能，都使得它成为现代流体控制系统中不可或缺的一部分。

　　② This electric ball valve, with its unique design and outstanding performance, plays an indispensable role in the HVAC and refrigeration systems of commercial and public buildings. Whether it is its fast switching speed, convenient operation mode, accurate flow control, or reliable safety performance, it has become an indispensable part of modern fluid control systems.

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