The Yamada NDP-25BAT is a heavy-duty 1-inch air operated diaphragm pump engineered for chemical transfer, solvent handling, paint spraying, and industrial fluid processing. Featuring an all-aluminum body, an aluminum air motor, and chemical-resistant PTFE (Teflon) elastomers, this high-performance Yamada AODD pump delivers reliable, stall-free operation at flow rates up to 46.2 GPM. Built with Yamada’s signature leak-free bolted construction, this 1" AODD pump avoids the misalignments and fluid leakage common to standard clamp-band designs. Its patented non-lubricated C-spool air valve design features an externally accessible air motor, enabling quick in-line maintenance and inspection without disconnecting the pump from service—maximizing uptime and reducing operational overhead.
