Iwaki Air AODD pumps are engineered for maximum utility. They are portable and easy to install, operate, and maintain. Infinitely variable flow rates and variable discharge pressures can handle a large range of fluids, including corrosive chemicals and flammable liquids. Iwaki Air AODD pumps can run dry, self-prime and dead-head without damaging the pump. Other design elements that distinguish Iwaki Air AODD pumps include body stabilization features to ensure heat resistance, and sound suppression construction to reduce both mechanical noise and compressed air noise. Most important, the lube-free air valve features a non-centering spring specially designed not to stall and is accessible for easy maintenance. Yamada