2 min read
01 Dec

When it comes to controlling the flow of liquids and gases, there are a few different valve types to choose from. Two of the most popular options are butterfly valves and control valves.

So, what's the difference between these two valve types? Keep reading to find out!

Introduction


A butterfly valve is a quarter-turn valve that consists of a disc that rotates on a central axis to open or close the flow of fluid through the valve. Butterfly valves are classified as either wafer-type or lug-type, depending on the type of connection between the body and the disc. Wafer-type butterfly valve have a disc that is sandwiched between two metal plates, while lug-type butterfly valves have a disc that is attached to a lug on the body of the valve.


Control valves are used to regulate the flow of fluid through a piping system. Control valves are classified as either globe or angle, depending on the orientation of the disc concerning the body of the valve. Globe valves have a disc that is perpendicular to the body of the valve, while angle valves have a disc that is parallel to the body of the valve.

The main difference between wafer-type butterfly valves and control valves is that wafer-type butterfly valves have a lower profile than control valves. This means that wafer-type butterfly valves require less space for installation than control valves. In addition, wafer-type butterfly valves are less likely to leak than control valves.

What is a butterfly valve?


A butterfly valve is a type of quarter-turn valve which is used to control the flow of liquids and gases. It consists of a disk-shaped closure element that is attached to a stem, and when the valve is closed, the disk blocks the flow of fluid. When the valve is opened, the disk rotates around the stem, allowing fluid to flow through. Butterfly valves are used in a wide variety of applications, including water treatment, HVAC systems, and process piping.

Butterfly valves have several advantages over other types of valves, such as ball valves and gate valves. They are less likely to leak, and they can be installed in smaller spaces than other types of valves. Butterfly valves can also be designed to handle higher pressures than other types of valves.

What is a control valve?


A control valve is a type of valve that is used to control the flow of fluids and gases. It consists of a closure element that is attached to a stem, and when the valve is closed, the closure element blocks the flow of fluid. When the valve is opened, the closure element moves away from the stem, allowing fluid to flow through. Control valves have several advantages over other types of valves, including being able to modulate the flow of fluid and being able to handle higher pressures.


The difference between a butterfly valve and a control valve


The main difference between butterfly valves and control valves is that butterfly valves are quarter-turn valves while control valves can be either quarter-turn or multi-turn. Butterfly valves are used to control the flow of liquids and gases, while control valves can also be used to regulate pressure and temperature. Butterfly valves are typically less expensive than control valves, but they are not as versatile.

Why choose a butterfly valve over a control valve?


There are several reasons why you might choose a butterfly valve over a control valve. Butterfly valves are less expensive than control valves, and they are also typically easier to install. Butterfly valves can be used for a wide variety of applications, including controlling the flow of liquids and gases. Control valves, on the other hand, are typically used for more specific applications, such as regulating pressure or temperature. Butterfly valves are also less likely to leak than control valves.

Conclusion


In conclusion, butterfly valves and control valves serve different purposes. Butterfly valves are less expensive and easier to install, but they are not as versatile as control valves. Control valves can be used to regulate pressure and temperature, while butterfly valves are only used to control the flow of liquids and gases. When deciding which type of valve to use, it is important to consider the specific application and choose the valve that will best meet your needs.

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