ARO (Ingersoll Rand) engineers rugged air-operated double-diaphragm (AODD) pumps for demanding transfer and batching. The EXP and PRO series cover sizes from fractional to 3 in., with wetted options in aluminum, stainless steel, cast iron, polypropylene, and PVDF. Bolted construction, lube-free air sections, and a stall-resistant valve design deliver reliable, leak-tight performance—ideal for abrasive, corrosive, and shear-sensitive fluids.
With ATEX configurations, FDA-compliant variants, and high-pressure 2:1 models for filter-press duty, ARO AODDs handle chemical transfer, paints & coatings, adhesives, inks, wastewater, and general plant service. Accessories such as pulsation dampeners, air prep, and electronic batch controls streamline safe, repeatable operation with quick maintenance and low total cost.