Yamada’s NDP Series pumps is the backbone of its industrial line of air-powered double diaphragm pumps. A unique, patented air-valve design ensures stall-free operation throughout product life. Bolted construction and common component-replaceable parts maximize uptime and increase profitability. Yamada Pumps are commonly fitted to Comexi, Windmoeller & Hoelscher and Fischer & Krecke Machines. Please see our dedicated Yamada Website Here