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 719 719 45° Street Elbow
705 45° Short Turn Elbow
707 22 1/2° Elbow
702 90° Long Turn Elbow
703 60° Short Turn Elbow
718 90° Street Elbow
722 Tee
723 Reducing Tee
708 11 1/4° Elbow
754 Bath P-Trap
731 Y-Branch 90° Reducing Long Turn