The bend radius of a pipe elbow is typically expressed in terms of the pipe's diameter (D) and can be either 1D, 1.5D, or 2D, with 1D and 1.5D being the most common.
Here's a breakdown:
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Short Radius Elbows: These elbows have a bend radius equal to 1D (one times the pipe's diameter).
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Long Radius Elbows: These elbows have a bend radius equal to 1.5D (one and a half times the pipe's diameter). While anything larger than 1.5D can technically be considered long radius, it's typically capped at 2D.
It is important to note: While some literature may refer to elbows with a radius greater than 1.5D as long radius elbows, the common industry standards generally limit long radius elbows to 1.5D. Other bends with larger radii are usually referred to as pipe bends (3D, 5D, etc.) rather than elbows.
