Pipe elbow vs pipe bend

What is pipe elbow?

The most commonly used elbows are seamless elbows,which are divided into:long radius elbow(also called 1.5D elbow) and short radius elbow (also called 1D elbow).

The 1.5D long radius elbow is the most commonly used elbow.The application is also the most extensive.

According to the specifications:

1. The small and medium-sized elbows are generally seamless elbows.At present,the maximum diameter of seamless elbows in China is 40″(Φ1020),that is,within the range of DN15-DN1000.
2. The large size is generally made of steel plate butt weld elbow.This process is also divided into long and short radius elbows.The specifications are:DN500-DN2500.

What is pipe bend?

The field of pipe bend is a bit more special than the elbow.Generally,there is no conflict between the two types.

The difference between pipe bends and elbows:

1. According to R: R is the radius,R is not limited after 3D (consistent with actual working conditions),for example,we can do 3D,you can also do 3.2D,of course,4D,5D,6D,8D etc.Are even more important.This is not limited by quantity.
2. According to the angle:the angle is also not limited,such as 11.5 °,22.5 °,45 °,60 °,90 °,135 °,180 °,270 °,360 ° etc.Can be customized.
3. There are also seamless and seamed distinctions.Generally,the small size is seamless,and the large size is seamed,such as spiral welding.

According to the production process:there are numerical control technology,seamless pushing process,medium frequency hot bending process.