Anvil drainage fittings have sufficient sweep to allow free unobstructed flow. They are made with a shoulder of the same diameter as the inside of the pipe, in accordance with ASME B16.12, Type 1. Thus, continuous passage is created when the pipe is screwed to the shoulder, leaving no place for solid matter to collect and clog in the pipe.
FIG 753 753 Coupling
706 45° Long Turn Elbow
736 45° Double Y-Branch
723 Reducing Tee
730 Y-Branch 90° Long Turn
701 90° Short Turn Elbow
729 Sanitary Tees 90° Reducing Double Short Turn
708 11 1/4° Elbow
703 60° Short Turn Elbow
735 Y-Branch 45° Reducing
718 90° Street Elbow