Butterfly valves are quarter-turn rotary motion valves used as throttling valves to control flow through a system. They can be used with many different media. Butterfly valves offer several advantages including quarter-turn, openness for less plugging, and good control capabilities. They may be used in a wide variety of chemical services, are available with small dimensions allowing for use in areas where space is limited, and allow a high coefficient of flow. Disadvantages include difficulty cleaning internal parts; therefore they should be avoided in situations that call for sterile, medical or food processing applications. Additionally, some styles may have difficulty dispensing slurries.
Types of Butterfly Valves