DEFU company is a professional diaphragm pump manufacturer. Our double diaphragm pump adopts guided air valve, with features of stable operation, idling operation, explosion-proof safety, good corrosion resistance.  Our AOK Series AODD pump has  the same performance with the USA GRACO diaphragm pump. And there are multi-material and multi-specification available. Below are our Diaphragm pump Specification for your choosing.

Pls feel free to contact with Ms Cindy(sales9@defupump.com) for more details.