The Yamada NDP-500 is not just another diaphragm pump—it sets the benchmark for performance in the 2” class. Delivering up to 226 gallons per minute, it is the highest-flowing pump in its category. But raw output is only part of the story. Through advanced component geometry, the NDP-500 achieves target flow rates at lower air pressures, cutting operating costs and energy consumption.

Designed with the user in mind, the pump simplifies maintenance. A single universal fastener, square flanges for support, and a lighter overall build make disassembly, installation, and portability easier than ever. Plus, because it shares diaphragms, balls, seats, and the proven NDP air motor with existing Yamada pumps, stocking and upgrading is seamless.

Head-to-head testing shows what customers can expect in the field: reduced pulsation, quieter operation, and virtually no vibration. Combined with Yamada’s legendary diaphragm life and durable stainless-steel construction, the NDP-500 is engineered to keep processes running longer and more efficiently.

Key Features

The purpose of this video is simple: to show the NDP-500 2” pump in a fair, transparent head-to-head comparison against an equal-sized competitor’s pump. Using calibrated, industry-standard testing tools, we document actual performance in terms of SCFM, PSI, and horsepower consumed. Unlike the exaggerated or misleading claims often found in the pump industry, this demonstration was created to provide customers with honest, verifiable data—so they can see for themselves how the NDP-500 delivers real efficiency and measurable value in the field.

Measured in SCFM, PSI, and horsepower—not marketing fluff. Watch the NDP-500 prove it