What Is the Difference Between a 2D, 3D and 5D Elbow?

The shortest answer is: 2D, 3D and 5D elbows differ only in the bend radius.

The larger the number before the letter D, the larger the bend radius.

Examples of applications of angle fittings, including weldable Hamburg elbows, return bends and threaded angle unions

Weldable Hamburg elbows, return bends and threaded angle unions are key elements of pipeline infrastructure, used in many industrial sectors. Thanks to these fittings, we can freely change the direction of medium flow. Below I present specific examples of the most typical applications: