Reducing tee

A reducing tee creates a lateral branch whose nominal outlet size differs from the main run. That size relationship distinguishes it from an equal tee, but no single branch-to-run ratio, flow split, or reinforcement rule applies to every service. Selection should address the size and wall at all three ends, branch orientation and loading, material, weld alignment, design pressure and temperature, and piping-stress requirements. Project documentation should define the exact run and branch arrangement rather than relying on the generic product name.