Structure, working principle and applicable environment analysis of electric butterfly valve
Column：Technical service
Time：2017-08-14
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The butterfly plate of the electric butterfly valve is installed in the direction of the diameter of the pipe. In the motor butterfly valve cylindrical channel, the disc shaped butterfly plate revolves around the axis, the rotation angle ...
The butterfly plate of the electric butterfly valve is installed in the direction of the diameter of the pipe. In the motor butterfly valve cylindrical channel, the disc shaped butterfly plate revolves around the axis, the rotation angle is between 0 degrees ~90 degrees, and when it rotates to 90 degrees, the valve is fully open.
The electric butterfly valve is simple in structure, small in size and light in weight. It consists of only a few parts. The utility model can be rapidly opened and closed only by rotating 90 DEG, the operation is simple, and the valve has good fluid control characteristics. When the electric butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop generated by the valve is very small, so the utility model has better flow control characteristics. There are two kinds of sealing types of electric butterfly valve: Bullet sealing and metal sealing. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.
Metal sealed valves are generally longer than resilient seals, but they are difficult to seal completely. The metal seal can adapt to higher working temperature, and the elastic seal has the limitation of temperature.
If the use of electric butterfly valve as flow control, the main choice is the correct size and type of valve. The structure principle of the electric butterfly valve is especially suitable for making big caliber valve. Electric butterfly valve is not only widely used in petroleum, gas, chemical, water treatment and other general industries, but also used in the cooling water system of thermal power station.
The commonly used electric butterfly valve has two kinds of clip type electric butterfly valve and flange type electric butterfly valve. The clamp type electric butterfly valve is connected with the two pipe flange by a stud bolt, and the flange type electric butterfly valve is provided with a flange on the valve, and bolts are used to connect the flanges on the pipe flanges at the ends of the valve.
The electric butterfly valve is simple in structure, small in size and light in weight. It consists of only a few parts. The utility model can be rapidly opened and closed only by rotating 90 DEG, the operation is simple, and the valve has good fluid control characteristics. When the electric butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop generated by the valve is very small, so the utility model has better flow control characteristics. There are two kinds of sealing types of electric butterfly valve: Bullet sealing and metal sealing. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.
Metal sealed valves are generally longer than resilient seals, but they are difficult to seal completely. The metal seal can adapt to higher working temperature, and the elastic seal has the limitation of temperature.
If the use of electric butterfly valve as flow control, the main choice is the correct size and type of valve. The structure principle of the electric butterfly valve is especially suitable for making big caliber valve. Electric butterfly valve is not only widely used in petroleum, gas, chemical, water treatment and other general industries, but also used in the cooling water system of thermal power station.
The commonly used electric butterfly valve has two kinds of clip type electric butterfly valve and flange type electric butterfly valve. The clamp type electric butterfly valve is connected with the two pipe flange by a stud bolt, and the flange type electric butterfly valve is provided with a flange on the valve, and bolts are used to connect the flanges on the pipe flanges at the ends of the valve.
