ARO PD20A-AAP-AAA-B Double Diaphragm Pump

A double diaphragm pump is a positive displacement pump that uses two sets of flexible membranes to pump fluids and a series of check valves to ensure fluid can only travel in one direction through the chamber. Pump cycling will begin as air pressure is applied. Air-operated diaphragm pumps utilize a pressure differential in the air chambers to alternately create suction in the fluid chambers.

ARO Expert Double Diaphragm Pumps provide peak performance in a small package. These positive displacement pumps are available in sizes ranging from 1" to 3" and flow rates up to 123 GPM (465 LPM). ARO offers a wide selection of corrosion-resistant materials to accommodate even the most difficult applications and a patented stall-resistant air valve that continuously keeps its pump running. The compact size of these ARO Diaphragm pumps makes them ideal for OEM applications. Burt process equipment is the largest distributor of Ingersoll Rand ARO diaphragm pumps.

• The Ultimate in heavy-duty pump design
• The best "Total Cost of Ownership" of any diaphragm pump on the market today
• Up to 4 times the life of traditional diaphragm pumps due to the EXP's new convoluted diaphragm design
• Efficiency - Simul-Shift^TM valve provides ultra-positive, reliable shift signal
• Reliability - ARO's patented "Unbalanced" air valve ensures no-stall operation
• Versatility - Broad range in materials of construction for optimum fluid compatibility
• Environmentally Sound - Bolted construction for leak-free fluid handling and ribless fluid caps to eliminate cracking
• Serviceability - Easier service through modular design

• Cast Iron
• Aluminum
• Stainless Steel
• Hastelloy-C

• Santoprene
• PTFE (PTFE) w/ Santoprene backer
• Medical Grade Santoprene
• Nitrile
• Hytrel
• Viton