Yamada Pump NDP-800BSN

The Yamada NDP-800BSN is a heavy-duty, ultra-high-capacity 3-inch air-operated double diaphragm pump engineered for maximum fluid throughput and demanding industrial liquid handling. Equipped with female 3-inch NPT threaded connections, it integrates smoothly into high-flow threaded piping networks for secure, leak-free performance. Featuring a cast 316 stainless steel housing paired with durable BUNA-N (N) diaphragms, this pump provides high structural integrity, superior dynamic sealing, and excellent resistance to petroleum-based fluids, oils, lubricants, and neutral chemical liquids. Powered by Yamada’s patented, oil-free C-Spool air-valve technology with an external reset button, the NDP-800BSN guarantees reliable, stall-free operation without requiring regular air motor lubrication. Delivering maximum flow rates exceeding 300 GPM while passing suspended solids up to 13/32” (10 mm), this seal-less liquid transfer unit is an ideal solution for petroleum processing, wastewater management, lubricant circulation, and abrasive slurry applications.