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Elbow vs Threaded Flanges – What’s the Difference

Elbow vs Threaded Flanges

Understanding the differences between elbow flange and threaded flange can be a challenge. While there are similarities between them, they have distinct uses and advantages. Knowing the difference between the two will help you make an informed decision when selecting the correct flange for your project. Let’s take a deeper look into an elbow and threaded flanges.

Elbow Flange

An elbow flange connects two pipes at an angle other than 90 degrees or 180 degrees. It is also known as a “welding neck” or “welded” flange because it has a neck that extends from the hub of the flange to allow welding of the pipe to the body of the flange. The main advantage of using an elbow flange is that it has greater strength than a threaded connection and can withstand higher pressures than other types of connections.

Threaded Flanges

Threaded flanges are used to join two pieces of pipe together by threading one end into another. The main advantage of a threaded connection is that it is simple and inexpensive to install, requires no welding, and does not need any additional fittings for installation purposes. Threaded connections are standard in low-pressure applications where temperature fluctuations are not expected.

Difference Between Elbow and Threaded Flanges

Advantages of elbow flanges

Elbow flanges have several advantages over threaded flanges:

  • Elbow flanges provide a stronger connection than threaded flanges, as they are welded onto the pipe.
  • Elbow flanges allow for a smoother flow of fluid or gas through the piping system, as there are no threads that can cause turbulence.
  • Elbow flanges are less likely to leak than threaded flanges.

Advantages of threaded flanges

Threaded flanges have several advantages over elbow flanges:

  • Threaded flanges are easier to install than elbow flanges, as they do not require welding.
  • Threaded flanges can be disassembled and reused if necessary.
  • Threaded flanges have a lower profile than elbowflangesso.

They take up less space in an application.

Disadvantages of elbow flanges

There are a few disadvantages associated with elbow flanges, such as:

  • They can be more challenging to install than threaded flanges since welding is required.
  • They may provide a weaker connection than threadedflangessince welding can weaken the metal.
  • They can be more expensive than threaded flanges since welding is required.


At first glance, it may seem like elbow, and threaded flanges do the same job; however, each type has its own unique features that make them suitable for different applications depending on your specific needs. Elbow flanges provide greater strength, while threaded connections offer easy installation with no extra fittings needed. Understanding these differences will help you make an informed decision when selecting the right flange type for your project.

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