ARO Diaphragm Pumps
ARO Air Operated Diaphragm Pumps are designed for general 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 certifi ed (CE ExII 2GD X).
ARO diaphragm pumps offer the ability to vary the flow outlet and discharge pressure as slow as one litre (gallon) per minute up to 1040 litres (275 gal) per minute for our larger sizes and adjust fl uid pressure up to 8.6 bars (125 psi), with just using an air filter/regulator or a needle valve.
These pumps are self-priming up to an elevation of 8.3 m (27.2 feet) with water and can operate dry without any damage. If the fl uid 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 materials of construction ideal 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.
ARO Diaphragm Pumps Range and Applications
Compact Pumps, 1/4” to 3/4” ports
Ideal for OEM and general industrial applications, these pumps feature big performance in a small package. Flow rates up to 56 l/min (15 gal) with a large range of material configurations.
EXP Series Pumps, 1” to 3” ports
ARO’s Process Grade, Expert Series Pumps feature the best total cost of ownership compared to some of our leading competitors. A favorite among process professionals with fl ow rates up to 1040 l/min (275 gal) and a large range of material configurations.
Pro Series Pumps, 1” to 3” ports
ARO’s Industrial Grade, Pro-Series Diaphragm Pumps provide high performance and stall-free reliability with fl ow rates up to 897 l/min (237 gal).
Specialty Application Pumps
Pumps providing the same high level of performance and satisfaction but in a design tailored for your specific application. This range includes many specific models (see details pages 8 and 9).