Since 1955, Wilden® has been the setting the standard in air-operated double-diaphragm (AODD) pump design and operation with many innovations introduced to the market over the years. Today, Wilden's Pro-Flo® and Pro-Flo® SHIFT Series AODD Pumps are leading the way in providing reliable, consistent, versatile and cost-effective fluid transfer for a number of critical global markets, including general industrial, oil and gas, chemical processing, food and beverage, military and marine, and water/wastewater.