How to choose a 90° elbow? Who is it suitable for, and who is it not suitable for?
For 90° elbow selection, the first step is to determine whether a long radius (LR, R=1.5D) or short radius (SR, R=1.0D) is required. This choice depends on space conditions, medium characteristics, system pressure, and stress environment. This article provides clear judgment logic and a decision tree to help EPC contractors, pipeline construction teams, and industrial and mining enterprises make the correct choice based on actual operating conditions, avoiding increased energy consumption or safety hazards caused by improper selection.