Electric Flanged Butterfly Valve

Electric Flanged Butterfly Valve is one of the most commonly used valve types in industrial pipelines.Electric Flanged Butterfly Valve features small size, low material consumption and light weight. The larger the caliber, the more cost-effective it is compared with other valves.Its pneumatic actuator can realize quick opening and closing by rotating 90°, making the operation simple.Meanwhile, this Electric Flanged Butterfly Valve has excellent fluid control performance.When the Electric Flanged Butterfly Valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure generated by passing through this valve is very small.When the opening degree is between approximately 15° and 70°, it can achieve sensitive flow control. Therefore, Electric Flanged Butterfly Valve has great advantages in large-caliber flow regulation.It is not suitable for process media with particles and relatively high temperatures.

Electric Flanged Butterfly Valve is composed of an electric actuator and a flanged butterfly valve.According to different working methods and working conditions, it can be divided into on-off control type and intelligent regulation type (controlled by 4-20mA analog signal).The sealing form is soft sealing. It works through the electric actuator, and the rotating valve stem drives the disc to open and close within the range of 0-90°.The structural performance of Electric Flanged Butterfly Valve is better than that of wafer-type butterfly valve. It generally has higher pressure resistance, so it is recommended to use Electric Flanged Butterfly Valve in working conditions where the caliber exceeds DN600.

Working Principle of Electric Flanged Butterfly Valve:

The Electric Flanged Butterfly Valve uses the electric actuator to input a standard signal of 0-10 mA, and the motor unit drives the gear, worm and worm gear to generate angular torque, which then drives the disc to rotate.When the valve is in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by passing through this valve is very small, thus it has good flow control characteristics.Electric Flanged Butterfly Valve has two sealing types: elastic sealing and metal sealing.For the elastic sealing valve, the sealing ring can be inlaid on the valve body or attached to the periphery of the disc.Valves with metal sealing generally have a longer service life than those with elastic sealing, but it is difficult to achieve complete sealing.Metal sealing can adapt to higher working temperatures, while elastic sealing has the defect of being limited by temperature.If the Electric Flanged Butterfly Valve is required to be used for flow control, the key is to correctly select the size and type of the valve.