A manufacturer of air-operated double-diaphragm (AODD) pump technology is celebrating its 60-year anniversary in 2015.

Wilden, part of PSG, a Dover company, was founded in 1955 by Jim Wilden, who also invented the AODD pump. The Grand Terrrace, Calif.-based company provides solutions for applications in the chemical, process, energy and water and wastewater industries.

In addition to its line of AODD pumps, Wilden also offers air-distribution systems designed to increase productivity while reducing energy consumption, air consumption and maintenance.