45 DEG. Long Radius Elbow, ASME B16.9, ASTM A234 WPB, 10 Inch

Sep 15, 2025

45° Long Radius Elbow Description‌

A ‌45° long radius elbow‌ is a pipe fitting that changes the pipeline direction by ‌45 degrees‌. The term ‌"long radius"‌ refers to the elbow's ‌bend radius being 1.5 times the pipe diameter‌. This design ‌significantly reduces fluid resistance‌ at the bend, ‌minimizes fluid impact on the pipe‌, and thereby ‌extends the pipeline's service life‌.

 

Specification

Product Name: 45 Degree Long Radius Elbow
Angle: 45 DEG.
Type: Long Radius
Design: ASME B16.9
Dimensional Spec.: ASME B36.10
Material: Carbon Steel
Material Spec., Fitting: ASTM A234 WPB
MFR. Process: Seamless
SIZE: 10 Inch, DN250
Wall Thickness: 0.593 Inch, 15.09 MM
SCH. Center To End: SCH 80, 6.25 MM, 159.0 MM
End: Butt Weld

45-deg-long-radius-elbow

Differences Between Long Radius and Short Radius Elbows

Length Comparison

The ‌long radius elbow‌ is visibly longer than the ‌short radius elbow‌, with an ‌additional length of 0.5DN‌ (Nominal Diameter).

Performance Characteristics

The ‌long radius elbow‌ exhibits ‌lower wear rates‌ and ‌reduced fluid冲刷 (erosion)‌ compared to the short radius type.

It also offers ‌significantly lower flow resistance‌, making it ‌clearly superior‌ in terms of hydraulic performance.

Application Scope

Long radius elbows (R=1.5DN)‌ are ‌preferred for general use‌ due to their balanced performance.

Short radius elbows (R=1.0DN)‌ are typically used ‌where space is constrained‌, but their ‌working pressure should not exceed 80%‌ of that of equivalent long radius elbows.