The elbow radius is the curvature radius. Short radius elbows, sometimes abbreviated as SR Elbows, are used for low-pressure and low-speed pipelines when the radius is the same as the pipe diameter. A long radius elbow (LR Elbow), used for high-pressure and high-flow rate pipelines, is one where the radius is more than the pipe diameter or R > 1.5 Diameter.

To change the direction of fluid flow, steel pipe elbows are essential components in a piping system. It is utilized to join two pipes of equal or different nominal diameters and to turn a pipe in a 45- or 90-degree orientation. Elbows come in a variety of shapes, including length, radius, direction angle, and connection type. The elbow can be divided into different degrees, such as 45 degrees, 90 degrees, and 180 degrees, which are the most common degrees, depending on the fluid direction of the pipes. Additionally, there are 60-degree and 120-degree pipelines.

## Different Types of Radius Elbows

90 Degree Pipe Elbow

A 90-degree steel pipe elbow, also known as a vertical elbow, functions to shift fluid direction by 90 degrees. It is the degree utilized most frequently in all different degrees of elbows and is the common degree in all pipeline systems. (Because it is practical to fit structural and steel construction.)

Installing a 90 Degree Long Radius Elbow of steel between pipes or tubing of various lengths. It facilitates a 90-degree direction change and is frequently used to attach hoses to pumps, deck drains, and valves.

The Short Radius 90 Degree Elbow indicated above is the same as the short radius 90-degree elbow, but it has a smaller diameter. As a result, when space is limited, this type of steel elbow is frequently employed.

45 Degree Pipe Elbow

The 45-degree elbow is the second most common use after the 90-degree elbow.

To modify the fluid direction to 45 degrees, the pipe elbow is fitted between two pipes. With less pressure and less friction than a 90-degree elbow, a 45-degree elbow creates less.  