Sioux Chief 800 Series Weld One integral trap floor drain shall be used where necessary in drainage systems. Drain shall have a 2" SCH 40 hub connection which conforms to ASTM D2665 (PVC) or ASTM D2661 (ABS). Hub connection shall be designed with proper pitch to insure grate remains level after connection. Drain trap shall be properly sized, and smooth sweep, to insure full flow and reduce sediment buildup. Drain shall employ a full 3" trap seal. Drain shall have a factory plugged cleanout access inside sump area. Strainer shall meet applicable load and flow requirements for intended use. Trap primer port shall be threaded 1/2" FIP for knockout connection.