A Butterfly valve is a quarter-turn rotational motion valve used to stop, regulate, and start a flow. Butterfly valves are used for on-off or modulating services and are popular due to their lightweight, small installation footprint, lower costs, quick operation, and availability in enormous sizes. Handles, gears, or automatic actuators can operate these valves. Large Butterfly valves are usually equipped with a so-called gearbox, where the handwheel by loads is connected to the stem. It simplifies the operation of the valve, but at the expense of speed.
Butterfly valves can be used for a broad range of water supply applications, wastewater treatment, fire protection, and gas supply, in the chemical and oil industries, in fuel handling systems, power generation, etc. Some of the advantages of this type of valve are the simple construction not taking up too much space, and the lightweight and lower cost compared to other valve designs. Handles, gears, or actuators can operate the valves according to any specific need.
Types of Butterfly Valves
Rubber-Lined Valves: Less expensive valves for non-demanding, non-abrasive, lower temperature applications.
Plastic-Lined Valves: or use with harsh chemicals, ultrapure applications, sanitary, or abrasive applications.
Metal Valves: For high-pressure or high-temperature applications, or those requiring fire resistance.
Engineered for long-term maintenance, butterfly valves are commonly selected for various applications spanning a wide range of industries, including food and beverage, dry bulk handling, and oil and gas drilling and production.