Jim Wilden revolutionized the pumping industry when he invented the air-operated double-diaphragm (AODD) pump in 1955. Since ... that time, Wilden® Pump and Engineering Company has been at the forefront of bringing AODD technology into the future by building its extensive infrastructure, knowledge base and intellectual capital. Wilden offers a comprehensive line of safe, reliable and energy-efficient AODD pumps – including the Pro-Flo® SHIFT Series, Pro-Flo Series and Specialty Series – for critical pumping applications in the general industrial, paints and coatings, oil and gas, chemical process, water and wastewater, hygienic, mining, ceramics, and military and marine markets. Additionally, Wilden offers the largest selection of AODD diaphragms in the world to ensure your unique application demands are fully met. Headquartered in Grand Terrace, CA, USA, Wilden is part of PSG®, a Dover company. Wilden is a part of PSG®, a global leader in the manufacture of pumps, systems and related flow-control solutions for the safe and efficient movement, measurement and control of the most critical and valuable materials within targeted global growth markets. Established in 2008, PSG has grown through organic growth, operational excellence and strategic acquisitions. Our products are manufactured on three continents – North America, Europe and Asia – in state-of-the-art facilities that practice lean manufacturing and are ISO-certified. Today we proudly employ 1400 team members in 19 global locations and support over 1700 channel partners in over 100 countries. read more