The Yamada NDP-25BAS is a heavy-duty air operated diaphragm pump engineered for outstanding flex life, high mechanical durability, and broad chemical resistance when transferring water-based fluids, mild caustics, and industrial slurries. Featuring a die-cast aluminum fluid body paired with an aluminum air motor and resilient Santoprene (TPO) diaphragms, check balls, and o-rings, this 1-inch NPT AODD unit delivers continuous flow rates up to 46.2 GPM (174.8 L/min) at operating pressures up to 100 PSI. Driven by Yamada’s patented non-lubricated C-spool air valve design, this Yamada AODD pump offers stall-free, freeze-resistant operation with zero oil-mist contamination. Its rugged all-metal exterior and leak-resistant bolted construction ensure maximum service life and reliable performance across industrial wastewater treatment, manufacturing processing, and general utility transfer applications.
