What is a Butterfly Valve4?

A butterfly valve is a quarter-turn rotary valve that is used to regulate flow in a pipeline. It has a circular disc shaped closure mechanism, which is mounted in the center of a pipe. This valve is designed so that a single quarter turn is all that is required to open or close it. As the disc turns within the valve body, the valve opens and closes, similar to the way a butterfly flaps its wings.

Why Are Butterfly Valves Used?

How Does a Butterfly Valve Work?

The butterfly valve works by having a disc-shaped closure fitted with a stem attached to it at the center of the valve. As the stem turns, the disk turns within the valve body, opening and closing the valve. The sealing between the disc and the valve body is done with elastomers, which ensure a tight seal when the valve is closed.

Types of Butterfly Valves

Butterfly valves come in many different types. These include wafer, lug, and flanged versions. Wafer butterfly valves are designed for simple installation and are often used for low-pressure applications. Lug butterfly valves are designed for heavier installation and are often used for higher pressure applications. Flanged butterfly valves are designed for permanent installation and can be used for a variety of applications.

Applications of Butterfly Valves

Butterfly valves can be used in a broad range of commercial and industrial applications. These include water and wastewater treatment, oil and gas, chemical processing, and petrochemical where they can be used to control flow in pressurized systems. In addition, they are often used in HVAC systems to regulate air flow.

Conclusion