Ingersoll-Rand/ARO Diaphragm Pumps provide stall-free, ice-free operation. The patented “Unstallable” unbalanced air valve design avoids stalling issues associated with other pumps. The “Quick-Dump” exhaust valves divert cold exhaust air from ice-prone components, preventing freezing. Backed by a five-year warranty, you have the most reliable pump line on the market today.

The Ingersoll-Rand/ARO Expert Series (EXP) diaphragm pump line provides optimum energy efficiency and downtime solutions that result in the best total cost of ownership of any diaphragm pump. EXP Pumps are 20-to-40% more energy efficient than competitive diaphragm pumps. EXP technology eliminates pump stalling and freezing. Totally non-metallic center bodies maximize corrosion resistance. Bolted construction ensures leak-free operation.