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蝶阀的结构特点
蝶阀的结构特点
Structural characteristics of butterfly valves
1、蝶阀具有结构简单、体积小、重量轻、材料耗用省，安装尺寸小，开关迅速、90°往复回转，驱动力矩小等特点，用于截断、接通、调节管路中的介质，具有良好的流体控制特性和关闭密封性能。
1. The butterfly valve has the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switching, 90 degree reciprocating rotation and small driving moment. It is used to cut off, connect and regulate the medium in the pipeline. It has good fluid control characteristics and sealing performance.
2、蝶阀可以运送泥浆，在管道口积存液体最少。 低压下，可以实现良好的密封。 调节性能好。
2, the butterfly valve can transport mud, and the least liquid is stored in the pipeline. Good seal can be achieved under low pressure. Good regulation performance.
3、蝶板的流线形设计，使流体阻力损失小，可谓是一种节能型产品。
3. The streamline design of the butterfly plate makes the fluid resistance loss small. It can be said to be an energy saving product.
4、阀杆为通杆结构，经过调质处理，有良好的综合力学性能和抗腐蚀性，抗擦伤性。蝶阀启闭时阀杆只作旋转运动而不作升降运行，阀杆的填料不易破坏，密封可靠。与蝶板锥销固定，外伸端为防冲出型设计，以免在阀杆与蝶板连接处意外断裂时阀杆崩出。
4. The valve stem is a through-rod structure. After conditioning, it has good comprehensive mechanical properties, corrosion resistance and scratch resistance. When the butterfly valve is opened and closed, the stem is only rotated but not lifted. The filler of the stem is not easy to destroy and the seal is reliable. Fixed with the butterfly plate cone pin, the extension end is anti-washout design, so as to avoid the valve stem bursting when the connection between the stem and the butterfly plate accidentally breaks.
5、 连接方式有法兰连接、对夹连接、对焊连接及凸耳对夹连接。 驱动形式有手动、蜗轮传动、电动、 气动、液动、电液联动等执行机构，可实现远距离控制和自动化操作。
5, the connection way is flange connection, clip pair connection, butt welding connection and lug clip connection. The driving forms include manual, worm wheel drive, electric, pneumatic, hydraulic, electro-hydraulic linkage and other executing mechanisms, which can realize long-distance control and automatic operation.
Structural characteristics of butterfly valves
1、蝶阀具有结构简单、体积小、重量轻、材料耗用省，安装尺寸小，开关迅速、90°往复回转，驱动力矩小等特点，用于截断、接通、调节管路中的介质，具有良好的流体控制特性和关闭密封性能。
1. The butterfly valve has the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switching, 90 degree reciprocating rotation and small driving moment. It is used to cut off, connect and regulate the medium in the pipeline. It has good fluid control characteristics and sealing performance.
2、蝶阀可以运送泥浆，在管道口积存液体最少。 低压下，可以实现良好的密封。 调节性能好。
2, the butterfly valve can transport mud, and the least liquid is stored in the pipeline. Good seal can be achieved under low pressure. Good regulation performance.
3、蝶板的流线形设计，使流体阻力损失小，可谓是一种节能型产品。
3. The streamline design of the butterfly plate makes the fluid resistance loss small. It can be said to be an energy saving product.
4、阀杆为通杆结构，经过调质处理，有良好的综合力学性能和抗腐蚀性，抗擦伤性。蝶阀启闭时阀杆只作旋转运动而不作升降运行，阀杆的填料不易破坏，密封可靠。与蝶板锥销固定，外伸端为防冲出型设计，以免在阀杆与蝶板连接处意外断裂时阀杆崩出。
4. The valve stem is a through-rod structure. After conditioning, it has good comprehensive mechanical properties, corrosion resistance and scratch resistance. When the butterfly valve is opened and closed, the stem is only rotated but not lifted. The filler of the stem is not easy to destroy and the seal is reliable. Fixed with the butterfly plate cone pin, the extension end is anti-washout design, so as to avoid the valve stem bursting when the connection between the stem and the butterfly plate accidentally breaks.
5、 连接方式有法兰连接、对夹连接、对焊连接及凸耳对夹连接。 驱动形式有手动、蜗轮传动、电动、 气动、液动、电液联动等执行机构，可实现远距离控制和自动化操作。
5, the connection way is flange connection, clip pair connection, butt welding connection and lug clip connection. The driving forms include manual, worm wheel drive, electric, pneumatic, hydraulic, electro-hydraulic linkage and other executing mechanisms, which can realize long-distance control and automatic operation.
