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ARO diaphragm pumps |
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Metallic diaphragm pumps from Ingersoll-Rand ARO are adaptable to various application requirements. These pumps are available in the following port sizes: 1/2", 3/4" 1", 1 1/2", 2", and 3", with flow rates ranging from 49 to 1,040 litres per minute. Materials of construction: Aluminium, RVS, Cast Iron, and HastelloyDiaphragm material: Santoprene®, Nitrile, PTFE, Viton®, Hytrel®, and Medical grade Santoprene® |
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Plastic diaphragm pumps from Ingersoll-Rand ARO can increase fluid applications. These pumps are available in the following port sizes: 3/8", 3/4", 1/4", 1/2", 1", 1 1/2", and 2", with flow rates ranging from 17 to 696 litres per minute. Materials of construction: Polypropylene, Kynar (PVDF) and Groundable Acetal. Diaphragm material: Santoprene®, Nitrile, PTFE, Polyurethane, Viton®, Hytrel®, and Medical grade Santoprene® |
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ARO’s patented “unbalanced” major air valve has constant air pressure applied to its small end. This assures that the pump resets. Competitive designs lose their signal during every shift, making them vulnerable to stalling. |
To reverse the valve, air pressure is supplied to the larger end of the valve, allowing the valve to shift - note that constant air pressure continues to be applied to the small end. |
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When the main valve opens and pressurises the diaphragm air chamber, the Quick Dump operates like a normal air passage and admits air into the diaphragm’s air chamber. |
When the main valve is ready to exhaust, the Quick Dump diverts all of the cold/wet exhaust air coming from the diaphragm air chamber away from the main air valve, avoiding ice formation in the critical valve passages. |

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The close fitting air valve designs used on competitive pumps allow air to bypass continually, which wastes air even when not pumping! |
Contact the sales staff for the right ARO diaphragm pump for your typical application.