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 731 731 Y-Branch 90° Reducing Long Turn
731, 734 & 735 Y-Branches Submittal
701 90° Short Turn Elbow
753 Coupling
734 Y-Branch 45°
752 P-Trap
708 11 1/4° Elbow
722 Tee
754 Bath P-Trap
705 45° Short Turn Elbow
735 Y-Branch 45° Reducing
719 45° Street Elbow