ARO double diaphragm pumps are expertly engineered to go the distance, even in the harshest environment.
Our pumps feature maximized flow rates with minimized pulsation and air consumption. Our patented unbalanced air valve design ensures stall-free, ice-free operation. Due to their pneumatic motor, our double diaphragm pumps could be used in potentially explosive areas.
ARO double diaphragm pumps are a reliable, cost-effective choice for industrial and chemical applications. Our bolted, leak-free construction eliminates cross-contamination and increases operator safety. Modular construction, reduced parts count and easy-to-use repair kits minimize repair time and cost.
ARO pumps are rigorously tested to ensure that your pump is built to last.
ARO double diaphragm pumps are available with many flow rates and sizes, allowing you to vary the flow outlet and discharge pressure. Our pumps can run as slow as 0.26 gallons (1 liter) per minute and up to 275 gallons (1079 liters) per minute for larger pump sizes. Adjust fluid pressure up to 125 p.si. (8.6 bar) by using an air filter/regulator and a needle valve.
Diaphragm pumps are a type of positive displacement pump that use a flexible diaphragm to move fluid. There are several types of diaphragm pumps, each with its own advantages and applications:
Air-operated diaphragm pump: This type of pump uses compressed air to flex the diaphragm, creating suction and discharge strokes. It is often used for transferring viscous or abrasive fluids and in applications where electricity is not available or practical.
