What is a Butterfly Valve
A butterfly valve is a type of quarter-turn valve used to control the flow of fluid in a pipeline. It consists of a circular disc or vane that is mounted on a rod or shaft. When the valve is closed, the disc is positioned perpendicular to the flow, blocking it. When the valve is open, the disc is rotated parallel to the flow, allowing fluid to pass through.
Butterfly valves are known for their quick operation and relatively low pressure drop compared to other types of valves. They are commonly used in applications where fast actuation and tight shut-off are required, such as in HVAC systems, water treatment plants, and various industrial processes.
2: Eccentric Butterfly Valve: The shaft is offset from the center of the disc, resulting in an eccentric closure mechanism. This design allows for tighter shut-off and improved sealing performance, making it suitable for applications with higher pressures or corrosive fluids.
3: Triple Offset Butterfly Valve: This type of butterfly valve has an additional offset in the disc's geometry, providing a metal-to-metal sealing mechanism. Triple offset butterfly valves are used in applications requiring bubble-tight shut-off and resistance to high temperatures and pressures.
Butterfly valves are available in various materials, sizes, and configurations to suit different application requirements. They are often preferred for their simplicity, reliability, and cost-effectiveness.
Butterfly valves are known for their quick operation and relatively low pressure drop compared to other types of valves. They are commonly used in applications where fast actuation and tight shut-off are required, such as in HVAC systems, water treatment plants, and various industrial processes.
There are different types of butterfly valves, including:
1: Concentric Butterfly Valve: The shaft is positioned at the center of the disc, resulting in a concentric closure mechanism. This design offers good sealing performance and is suitable for a wide range of applications.2: Eccentric Butterfly Valve: The shaft is offset from the center of the disc, resulting in an eccentric closure mechanism. This design allows for tighter shut-off and improved sealing performance, making it suitable for applications with higher pressures or corrosive fluids.
3: Triple Offset Butterfly Valve: This type of butterfly valve has an additional offset in the disc's geometry, providing a metal-to-metal sealing mechanism. Triple offset butterfly valves are used in applications requiring bubble-tight shut-off and resistance to high temperatures and pressures.
Butterfly valves are available in various materials, sizes, and configurations to suit different application requirements. They are often preferred for their simplicity, reliability, and cost-effectiveness.
Butterfly Valve Exploded View
Butterfly Valve Working Principle
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