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The difference between an electric two-speed butterfly valve and a hydraulically controlled check butterfly valve

1. Definition of electric two-speed butterfly valve and hydraulic check butterfly valve The electric two-speed butterfly valve is an electric valve used for fluid control, which plays the role of shut-off and regulating the flow of media in the pipeline. Hydraulically controlled check butterfly valve is a kind of fluid control pipe fitting, which is mainly used to protect the pipeline from the valve of medium backflow. Second, the characteristics of electric two-speed butterfly valve and hydraulic check butterfly valve 1. Electric two-speed butterfly valve: It has the characteristics of two-speed adjustment and high torque output, compact structure, small size, strong fire safety, easy installation, and is suitable for conveying medium with a wide range of flow changes, such as air, water, oil, gas, steam, etc. 2. Hydraulically controlled check butterfly valve: with the characteristics of check, throttling and self-cleaning, it can well prevent the regurgitation of medium and pipeline blockage, simple structure, small size, long service life, suitable for liquid, gas and other medium pipelines, can be widely used in petrochemical, metallurgy, electric power, light industry and other industries pipeline system. 3. Application fields of electric two-speed butterfly valve and hydraulic check butterfly valve 1. Electric two-speed butterfly valve: It can be widely used in the pipeline system of insulation materials, metallurgy, chemical industry, electric power, food, medicine and other industries. 2. Hydraulically controlled check butterfly valve: suitable for hydraulic system and pneumatic system in various occasions, widely used in petroleum, chemical, metallurgy, electric power, light industry and other industries of pipeline system. Fourth, the advantages and disadvantages of electric two-speed butterfly valve and hydraulic check butterfly valve 1. The advantages of electric two-speed butterfly valve are compact structure, small size, strong fire safety, and the disadvantage is that the price is higher and the applicable medium range is limited. 2. The advantages of the hydraulic check butterfly valve are the characteristics of check return, throttling and self-cleaning, simple structure and long service life, and the disadvantage is that the flow range is small.