How a diaphragm pump works (Air-Operated Double Diaphragm / AODD) A diaphragm pump moves liquid by flexing one or two elastomer diaphragms back and forth, creating alternating suction and discharge strokes. In a Yamada AODD pump, compressed air provides the driving force.

Mr. Shotaro Yamada shares reflections on 120 years of progress and what's ahead.

A flexographic printer uses more than 40 pumps, all equipped with high-performance diaphragms to transfer ink and solvents. Typically, the diaphragms are changed as part of preventive maintenance every six months.

For over 20 years, a tannery / Leather Works in Uruguay have installed numerous chemical resistant plastic Yamada pumps, to transfer aggressive acids, hydroxides combined with softeners and moisturizers within their plant. These extremely aggressive finishing chemicals are used in their entire production line. After which the treated skins are exported to Germany, where they become the exclusive leather upholstery for high-end luxury cars.

A car assembly plant located in South America needed some #AODD pumps to transfer #chemicals and #solvents for a primer base mixing line. During the bidding process, they insisted to their local Yamada distributor that they prefer only using Yamada pumps. They were looking for a long lasting, low cost of ownership pump to match the exceptional performance they received from their previous NDP-40BAT pump used in a similar application downstream in their assembly line, where this equipment was in service for long term. It has been 10 years, and the NDP-20BAT pumps they purchased are still performing and still running smooth.