Processing Magazine

A better way to optimize air consumption in AODD pumps

December 6, 2013

Wilden Pro-Flow Shift aodd pumpIn the world of air-operated double-diaphragm (AODD) pumps, Grand Terrace, Calif.-based Wilden Pump and Engineering Co. says, this AODD pump represents a significant breakthrough in energy efficiency and overall cost of operation, primarily through incorporation of a “revolutionary” air distribution system.

Jim Wilden, founder of Wilden Pump and Engineering, which is today part of PSG, invented the AODD pump in 1955.

Since AODD pump technology’s advent, suppliers have looked for a better way to optimize air consumption and control the air-chamber “overfilling” that occurs at the end of each pump stroke without any corresponding fluid displacement.

To combat overfilling — which is nothing more than wasted air — this AODD pump restricts the air flow into the chamber near the end of each pump stroke. Only enough air is introduced to keep the pumping process going. This is accomplished by means of an air-control spool that meters the air to prevent overfilling, without reducing product yield.

Independent side-by-side tests with competitive models, Wilden says, reveal that the Pro-Flo SHIFT:
    •  Achieves up to a 60% savings in air consumption (SCFM)
    •  Delivers more yield per SCFM versus competitive pumps
    •  Costs 50% less than electronically actuated pumps

The result is a significant reduction in air consumption and a significant savings in operational costs for the processing plant, a critical consideration as plants streamline costs and reduce carbon footprints.