The Yamada NDP-50BAS is a heavy-duty 2-inch air operated diaphragm pump engineered for continuous, high-volume transfer of mild abrasive slurries, process water, and industrial chemical solutions. Constructed with a lightweight, durable aluminum body and fatigue-resistant Santoprene® (TPO) diaphragms, this versatile pump delivers superior wear resistance, long flex life, and excellent mechanical toughness across demanding utility and processing lines. Powered by Yamada’s patented, oil-free C-Spool air-valve technology, this reliable Yamada AODD unit guarantees non-lubricated, stall-free operation across continuous duty cycles. Capable of output flow rates up to 164 GPM while passing suspended solids up to 5/16” through its 2-inch NPT ports, the NDP-50BAS AODD pump provides a seal-less, leak-proof, and explosion-proof liquid handling solution for industrial wastewater processing, ceramic slip handling, construction dewatering, and chemical slurry transfer.