Engineering resource
Precision stainless elbow technical guide.
A practical engineering reference for communicating precision elbow geometry clearly.
CLR
Centerline radius is the radius from the center of the bend to the tube centerline. CLR is not bend angle.
Bend angle
The directional change through the elbow. A 90° elbow can be produced at different CLRs.
With straight section
A specified straight length extends beyond tangent. The finished face is perpendicular to the local tube centerline axis.
Faced at tangent
The elbow terminates at tangent with the face perpendicular to the local tube centerline axis and no added straight length.