From the above we know that electric butterfly valves are divided into handle butterfly valves and turbine butterfly valves. Their operation methods will of course be different. The operation of the handle butterfly valve is to pull the handle, turn it counterclockwise to open the valve, and turn it clockwise to close the valve. The turbine butterfly valve is equipped with a worm gear reducer on the stem of the butterfly valve. The turbine device makes the operation of the butterfly valve more labor-saving and can cope with a larger medium pressure environment while improving the operability of the valve.
If the diameter of the butterfly valve is less than 150mm, it is recommended to use the handle to drive. If the diameter of the butterfly valve is more than 150mm, it is recommended to use a turbine device to make it easier to operate. The maximum diameter of the handle butterfly valve can only be 250mm. If it exceeds this maximum diameter, it will no longer be suitable and electric or pneumatic actuators will be required.
In industrial engineering, we recommend the use of a turbine butterfly valve, because in addition to effort, the turbine butterfly valve is better than the handle butterfly valve. In addition, the life of the turbine butterfly valve is higher than that of the handle butterfly valve in the pipeline with high switching frequency.