Unsure which type of valve is best for you? Here’s some more information and FAQs about Butterfly Valves:

Q: What is a butterfly valve?

A: A butterfly valve is a quarter-turn valve that uses a circular disc or “butterfly” to control the flow of a fluid through a pipe. It can be used to isolate or regulate the flow of various liquids and gasses.

Q: How does a butterfly valve work?

A: Butterfly valves work by rotating a disc or plate 90 degrees within the pipe to either allow or block the flow of the fluid. When the disc is parallel to the flow, the valve is open, and when it’s perpendicular, the valve is closed.

Q: What are the main types of butterfly valves?

A: The main types of butterfly valves include concentric (rubber-lined), eccentric (offset), and triple-offset (metal-seated) valves. The choice of type depends on the application and the type of fluid being controlled.

Q: What are the advantages of butterfly valves?

A: Butterfly valves are often preferred for their compact design, ease of operation, and low-pressure drop. They are also relatively cost-effective compared to other types of valves.

Q: Where are butterfly valves commonly used?

A: Butterfly valves are used in a wide range of industries, including water and wastewater treatment, HVAC systems, chemical processing, oil and gas, and food and beverage processing.

Q: What are the limitations of butterfly valves?

A: Butterfly valves are generally not suitable for high-pressure or high-temperature applications, and they may not provide the same level of sealing as other valve types like gate or globe valves.

Q: What materials are butterfly valves made from?

A: Butterfly valves can be made from a variety of materials, including cast iron, ductile iron, carbon steel, stainless steel, and various plastics. The material selection depends on the application and the fluids being handled.

Q: How do I select the right size of a butterfly valve for my application?

A: To select the right size, you should consider factors like the flow rate, pressure, temperature, and the pipe size.

At SVF, we have a range of Butterfly Valves to choose from. This includes the B5, SL, and SLB series Butterfly Valves. You can view them here.