ARO Pump
ARO Air-operated Diaphragm Pumps are designed for industrial use. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage. Due to their pneumatic motor, they can be used in potentially explosive areas. Most of the ARO Diaphragm Pumps are ATEX certified (CE ExII 2GD X).
Highly flexible
ARO diaphragm pumps offer the ability to vary the flow outlet and discharge pressure as slow as one litre per minute upto 1040 litres per minute for our larger sizes and adjust fluid pressure upto 8.5 bars, with just using an air filter/regulator and a needle valve.
Self Priming
These pumps are self-priming upto an elevation of 8.3 m (with water) and can operate dry without any damage. If the fluid outlet is closed, the pump stops; it restarts with the reopening of the fluid circuit; no pressure relief valve or bypass is necessary
Wide range of material configurations
The ARO range of diaphragm pumps offers many material of construction compatible for the chemical industry: our metallic offering consists of aluminium, cast iron, stainless steel and hastelloy. Our non-metallic offering consists of polypropylene, acetal and PVDF.
Compact Pumps
- With ice-free, stall-free operation, ARO air-operated diaphragm pumps are a preferred pumping system of professionals in processing industries.
- The “Quick-Dump” exhaust valves divert cold exhaust air from components that are prone to icing so that they don’t freeze. The company’s patented “Unstallable” unbalanced air valve design prevents the stalling problems experienced with other pumps.
- These compact, heavy-duty ARO diaphragm pumps are designed for general use. Features include corrosion resistance, reliability, and efficiency.

