What are the similarities and differences between long radius elbow and short radius elbow?

Elbows are fittings used to change the direction of pipes in a piping system. Common elbow angles can be divided into 45 °, 90 ° and 180 °. In addition, according to the actual situation, there will be other angle elbows, such as 60 °;

According to the material of elbow, it can be divided into stainless steel elbow, carbon steel elbow, etc; According to the production method, it can be divided into pressed elbow, forged elbow, push elbow, cast elbow, etc. However, since the radius of elbow varies from long to short, elbow can also be divided into long radius elbow and short radius elbow. The difference between a long radius elbow and a short radius elbow.

Long radius elbows are relatively short radius elbows.
Long radius elbow is a more commonly used elbow fitting connected with pipe or pipe, which is also commonly called 1.5D elbow. The short radius elbow is also called 1D elbow because it is shorter than the long radius elbow. There will be fewer short radius elbows than long radius elbows.

The similarities between long radius elbow and short radius elbow:
Long radius elbow and short radius elbow have many similarities. For example, when they are connected to the pipe, they are used to change the direction of the pipe. In addition, their diameters, angles, materials, wall thickness and other factors can also be kept consistent.

Differences between long radius elbow and short radius elbow:
1. Different radius of curvature: the radius of curvature of long radius elbow is 1.5D of the pipe, and the short radius is 1D. D is what we call the elbow diameter. In our practical application, most of them are 1.5D elbows, and 1D elbows are generally used in places where the installation environment is relatively limited.
2. Different shapes: long radius elbow and short radius elbow are very different in shape. Long radius elbow is obviously longer than short radius elbow. This method can be used to verify whether it is stainless steel elbow or carbon steel elbow.
3. Different performance: In the pipeline with large flow rate and high pressure, the use of long radius can reduce a certain resistance. If the requirements are more strict, elbows larger than 1.5D can be used.

Our company gives a suggestion: short radius elbows should not be selected where long radius elbows can be used. When long radius elbows cannot be used, short radius elbows should be used. Most importantly, we need to make decisions according to the actual situation of the pipeline or pipeline when selecting elbows.


Post time: Nov-17-2022