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A butterfly valve is a type of quarter-turn valve that uses a rotating disc to regulate the flow of fluid through a pipe. The disc is mounted on a shaft and is positioned in the center of the pipe. When the valve is closed, the disc blocks the flow, and when opened, it allows fluid to pass through with minimal resistance. Butterfly valves are typically made from materials such as cast iron, stainless steel, or plastic, depending on the application and the type of fluid being controlled.
| Size range | 2 inches to 48 inches |
| Pressure rating | Up to 300 psi |
| Material options | Cast iron, stainless steel, PVC |
| Temperature range | -20°F to 400°F |
| Actuation types | Manual, pneumatic, electric |
When selecting a butterfly valve, consider the size and pressure rating required for your application. It's important to specify the material based on the type of fluid and its temperature. Additionally, determine whether you need manual or automated actuation. Certifications and standards may also be relevant, depending on industry requirements, so be sure to inquire about these when requesting a quote.
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Butterfly valves use a disc to control flow, while ball valves use a spherical ball. Butterfly valves are generally lighter and more compact.
Yes, but they are primarily designed for on/off control and may not provide precise throttling.
Common materials include cast iron, stainless steel, and PVC.
With proper maintenance, butterfly valves can last 10 to 20 years.
Yes, but you must select a valve rated for the specific pressure requirements.
Regular inspection for wear and tear, lubrication of moving parts, and ensuring seals are intact are key maintenance steps.