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 706 706 45° Long Turn Elbow
707 22 1/2° Elbow
723 Reducing Tee
703 60° Short Turn Elbow
735 Y-Branch 45° Reducing
701R 90° Reducing Short Turn Elbow
752 P-Trap
731 Y-Branch 90° Reducing Long Turn
701 90° Short Turn Elbow
708 11 1/4° Elbow
734 Y-Branch 45°