Small Pumps: Sub ANSI Flows Teikoku USA Inc. and the Chempump Division offer a number of centrifugal pumps with hydraulics below the smallest ANSI size (1-1/2 x 1 x 6). These pumps offer higher efficiencies, lower motor horsepower and smaller space envelopes than ANSI pumps yet the same design point. The design point will also be closer to the Best Efficiency Point (BEP) of the pump. Recommended Pumps: Chempump Dynapump Chempump G Series