The size of a butterfly valve is the primary control parameter to consider.
The butterfly valve is a type of air valve that consists of a single plate, making it simple to construct and easy to operate. It is also cost-effective, making it a popular option for ventilation and air conditioning systems. However, the butterfly valve's adjustment accuracy is not ideal, limiting its use to on-off or rough adjustments. Therefore, it is not recommended for precise adjustments.
The device offers options for manual, electrical, or zipper operation, providing flexibility in usage. Additionally, it can be secured at any angle between 90°, allowing for custom positioning.
Based on the original text information, the valve's bearing capacity is limited and its service life is short when subjected to large pressure differences and high flow rates due to its single shaft and single valve plate. Additionally, the valve can be categorized into different types such as closed or ordinary, and can also be classified as either thermal insulation or non-thermal insulation. Therefore, it is essential to consider these factors when selecting and operating the valve.
The electric actuator used in the electric butterfly valve is identical to the one utilized in the multi-leaf valve. However, it is important to note that the electric butterfly valve only offers two-position control.