电动蝶阀的常用规格涵盖了多个方面，包括公称通径、阀体材料、控制信号、管路连接方式、力矩等关键参数。以下是对电动蝶阀常用规格的详细归纳：

　　The common specifications of electric butterfly valves cover multiple aspects, including nominal diameter, valve body material, control signal, pipeline connection method, torque and other key parameters. The following is a detailed summary of commonly used specifications for electric butterfly valves:

　　一、公称通径

　　1、 Nominal diameter

　　电动蝶阀的公称通径范围较广，常见的规格有DN50至DN600，也有部分产品可达到更大的通径。具体选择时，需根据管道系统的实际需求来确定。

　　The nominal diameter range of electric butterfly valves is relatively wide, with common specifications ranging from DN50 to DN600, and some products can achieve larger diameters. The specific selection needs to be determined based on the actual requirements of the pipeline system.

　　二、阀体材料

　　2、 Valve body material

　　阀体材料的选择对于电动蝶阀的性能和使用寿命至关重要。常见的阀体材料包括灰铸铁（适用于DN50至DN150的较小通径）、球墨铸铁（适用于DN200至DN600的较大通径）以及不锈钢等。不锈钢材料具有优异的耐腐蚀性和耐高温性能，适用于对介质有特殊要求或工作环境恶劣的场合。

　　The selection of valve body material is crucial for the performance and service life of electric butterfly valves. Common valve body materials include gray cast iron (suitable for smaller diameters from DN50 to DN150), ductile iron (suitable for larger diameters from DN200 to DN600), and stainless steel. Stainless steel material has excellent corrosion resistance and high temperature resistance, and is suitable for occasions with special requirements for media or harsh working environments.

　　三、控制信号

　　3、 Control signal

　　电动蝶阀通常接受标准的控制信号来实现开关或调节功能。常见的控制信号包括0-10vDC、4-20mA等模拟信号，以及开关量信号。这些信号可以通过电动执行器接收并转换为阀门的动作指令。

　　Electric butterfly valves usually accept standard control signals to achieve switching or regulating functions. Common control signals include analog signals such as 0-10vDC and 4-20mA, as well as switch signals. These signals can be received by electric actuators and converted into valve action commands.

　　四、管路连接方式

　　4、 Pipeline connection method

　　电动蝶阀的管路连接方式多样，常见的包括法兰连接和对夹式连接。法兰连接适用于需要较高密封性能和承压能力的场合，而对夹式连接则更加简便快捷，适用于对安装空间有要求的场合。

　　There are various pipeline connection methods for electric butterfly valves, including flange connections and clamp connections. Flange connections are suitable for situations that require high sealing performance and pressure bearing capacity, while clamp connections are more convenient and efficient, suitable for situations that require installation space.

　　五、力矩

　　5、 Torque

　　电动蝶阀的力矩是指执行器驱动阀门动作时所需的扭矩大小。力矩的大小与阀门的尺寸、介质压力以及密封面的摩擦力等因素有关。常见的力矩范围从50N.M至4000N.M不等，具体选择时需根据阀门的实际需求和执行器的性能来确定。

　　The torque of an electric butterfly valve refers to the amount of torque required for the actuator to drive the valve action. The magnitude of torque is related to factors such as valve size, medium pressure, and frictional force on the sealing surface. The common torque range is from 50N M to 4000N M varies, and the specific selection needs to be determined based on the actual requirements of the valve and the performance of the actuator.

　　六、其他常用规格

　　6、 Other commonly used specifications

　　除了上述关键参数外，电动蝶阀的常用规格还包括工作压力、介质温度、流量特性等。工作压力通常根据管道系统的实际需求来确定，介质温度则需考虑阀门的材质和密封材料的耐温性能。流量特性则决定了阀门在调节介质流量时的性能表现。

　　In addition to the key parameters mentioned above, common specifications for electric butterfly valves also include working pressure, medium temperature, flow characteristics, etc. The working pressure is usually determined based on the actual needs of the pipeline system, while the medium temperature needs to consider the temperature resistance of the valve material and sealing material. The flow characteristics determine the performance of the valve in regulating the flow rate of the medium.

　　综上所述，电动蝶阀的常用规格涵盖了多个方面，具体选择时需根据管道系统的实际需求、工作环境以及介质特性等因素进行综合考虑。在选择时，建议咨询专业的阀门制造商或供应商，以确保所选产品符合实际需求并具有优异的性能表现。

　　In summary, the common specifications of electric butterfly valves cover multiple aspects, and the specific selection needs to be comprehensively considered based on factors such as the actual needs of the pipeline system, working environment, and medium characteristics. When choosing, it is recommended to consult a professional valve manufacturer or supplier to ensure that the selected product meets actual needs and has excellent performance.

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