1" diaphrgam pump with aluminum body, polypropylene seats, hytrel balls and hytrel diaphragms.cetalballs and nitrile diaphragms. Suitable for motor oil, gear oil, transmission fluid, and wasteoil. Ingersoll Rand / ARO Diaphragm Pumps provide stall-free, ice-free operation. Their 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, we have the most reliable pump line on the market today. Runs Dry-ARO diaphragm pumps can run dry without any damage to the pump. Bolted Construction-pumps feature bolted construction to avoid the proven problems created by band clamp type pump fasteners. Lube-Free Air Motor-ARO diaphragm pumps are pre-lubricated, and do not require and air lubricator, eliminating maintenance concerns (The use of a lubricator is not recommended.), Variable Flow Rate-adjusting the pressure to the pump allows precise control over the pumps flow rate without damaging the pump, Patented Air Valve-ARO's patented "unbalanced" air valve design eliminates stalling, a common occurrence in competitive pumps. Hi-Flow-these pumps offer high-volume delivery of material even at low air pressures.
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