The butterfly valve employs a disc-type opening and closing component that rotates reciprocally around 90° to realize the opening, closing and regulation of fluid passages. It features a simple structure, compact size, light weight, low material consumption and small installation footprint. Meanwhile, it offers a small driving torque, easy and quick operation, as well as excellent flow regulation performance and reliable shut-off sealing properties.
As one of the fastest-developing valve categories over the past decade, butterfly valves are extensively applied in industrially advanced nations including the United States, Japan, Germany, France and Italy, with a continuous expansion in product types and application scope. Modern butterfly valves are evolving toward high-temperature resistance, high-pressure capacity, large diameter, high tightness, long service life, superior regulation performance and multi-functional integration.
With its reliability and overall performance reaching advanced levels, the butterfly valve has partially replaced globe valves, gate valves and ball valves in many applications. Supported by ongoing technological advancements, butterfly valves are expected to become the dominant valve type in the foreseeable future, particularly in medium- and low-pressure systems for large and medium-caliber pipelines.
