Roodhart 811 Roodhart 811 ANSI Process PumpsThe fully open impeller, centerline discharge, and other unique design features allow the 811 to continue operating long after other ANSI pumps wear out or break down. A choice of extra-heavy-duty, stocked, Ductile Iron, Stainless Steel, Alloy 20 and CD4M pump materials coupled with multiple seal design options allows you to tailor t..