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
702 90° Long Turn Elbow
731 Y-Branch 90° Reducing Long Turn
753 Coupling
708 11 1/4° Elbow
735 Y-Branch 45° Reducing
706 45° Long Turn Elbow
754 Bath P-Trap
722 Tee
726 Sanitary Tees 90° Short Turn
734 Y-Branch 45°