Short radius elbows
The short radius elbows have a center-to-end distance equal to the Nominal Pipe Size (NPS) in inches, while the long radius is 1.5 times the NPS in inches. Short elbows are widely available, and are typically used in pressurized systems. The degree types of short radius pipe elbows as below: 45 degree short radius elbow 90 degree Short Radius Elbow 180 degree short radius elbow SR (Short Radius) Elbows have a Center-to-Face dimension of 1.0 X diameter. They are typically used in tight areas where clearance is the main issue. ASME B16.9 90°Short Radius Elbow Dimensional Tolerance NPS O.D. D 90 degrees Long Radius Center-to-End A 45 degrees Long Radius Center-to-End B 90 degrees 3D Center-to-End A 45 degrees 3D Center-to-End B