Since 1968, DEPA®, a brand within the Crane ChemPharma & Energy business of Crane Co. (www.craneco.com), has designed and man ... ufactured air operated diaphragm pumps as high quality positive displacement solutions serving the chemical, building, environmental, and power industries. Offering a large variety of materials and models for safe operation, DEPA® can provide customized solutions for specific and demanding industrial applications. read more