Butterfly valves are simple in structure, small in size, and lightweight. They consist of only a few key components and are very easy to open; simply turn the switch to 90 degrees. Butterfly valves offer excellent fluid control, allowing for easy increases or decreases in flow rate. While all valves experience some resistance when transporting fluids, the resistance in butterfly valves primarily stems from their own structure, such as the thickness of the valve body. Reducing fluid resistance simply requires decreasing the valve's thickness.
However, resilient seals are limited by temperature.
Butterfly valves have a wide range of applications. When used for flow control, different types and valve sizes need to be selected, as butterfly valves are inherently well-suited for larger diameters. Butterfly valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems of thermal power plants.