1. Simple and compact structure

The overall structure of butterfly valves is relatively simple, mainly composed of a few components such as valve body, butterfly plate, valve stem, and sealing device. This concise design reduces the number of components required in the manufacturing process of butterfly valves, and the processing technology is relatively simple. It not only reduces manufacturing costs, but also facilitates installation, maintenance, and overhaul. In pipeline systems with limited space, the compact external dimensions of butterfly valves can effectively save installation space and provide greater flexibility for pipeline layout.

2. Small operating torque

As mentioned earlier, the working principle of butterfly valves is based on the rotational motion of the butterfly plate. During the opening and closing process, the relative motion between the butterfly plate and the sealing surface of the valve body is relatively smooth, without the need to overcome excessive friction. Therefore, the torque required to operate the butterfly valve is relatively small, which allows the butterfly valve to be easily combined with various driving devices, such as manual, electric, pneumatic, or hydraulic driving devices. Even in large-diameter butterfly valve applications, a smaller operating torque can ensure fast and smooth opening and closing of the valve, reducing the power requirements of the driving device and saving energy consumption.

3. Quick switch

The motion mode of the butterfly valve rotating around the axis inside the valve body enables the butterfly valve to achieve a state transition from fully open to fully closed or from fully closed to fully open in a short period of time. In general, the opening and closing time of butterfly valves ranges from a few seconds to tens of seconds, far faster than some traditional valves such as gate valves and globe valves. This fast switching characteristic is of crucial importance in situations where urgent fluid cut-off or rapid flow regulation is required, as it can respond to system control instructions in a timely manner and ensure the safe and stable operation of pipeline systems.

4. Small size and light weight

Compared to other types of valves with the same diameter, butterfly valves have a significantly smaller volume and lighter weight. This feature makes butterfly valves more convenient to transport, install, and maintain, reducing the investment of manpower and material resources. In some situations where there are strict weight restrictions on equipment, such as offshore platforms, aerospace and other fields, the lightweight advantage of butterfly valves is particularly prominent, which can effectively reduce the load of the entire system, improve the operational efficiency and reliability of the system.

5. Good flow regulation performance

The opening of butterfly valves is basically linearly proportional to the flow rate. By precisely controlling the rotation angle of the butterfly plate, continuous and precise adjustment of fluid flow can be achieved. In the field of large-diameter regulation, the flow regulation characteristics of butterfly valves have made them widely used. Compared with other flow regulating valves, butterfly valves have less pressure loss to the fluid during the regulation process, which can better maintain the pressure stability of the system and improve the energy utilization efficiency of the system.