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Wilden’s air distribution systems have been redesigned to eliminate the overfilling in AODD pump operations. The Wilden Pro-Flo SHIFT series of AODD Pumps, restrict the air flow into the air chamber at the end of each pump stroke. This allows only enough air necessary to keep the pump process going. Air controlled spools automatically optimize air consumption and eliminate the overfilling of the air chamber, with the redesign there is no reduction in flow rate during this process.The Pro …