DEFU is a professional diaphragm pump supplier in China.

An Air Operated Double Diaphragm Pump is a Positive Displacement Pump. Diaphragm pumps are categorized under the most common types of industrial pumps. It makes use of the so-called positive displacement method in order to move a liquid from one location to another.

A diaphragm pump is capable of handling highly-viscous liquids and other materials such as abrasives, chemicals, concrete, effluents. What’s more, Double diaphragm pump is driven by air, it’s pneumatic motor. they could be used in potentially explosive areas. So it’s can transfer gasoline or diesel fuel. we also call it as oil pump and drum pump.

Below are our air driven diaphragm oil pumps with different specification. Pump body material is Aluminum, Diaphragm is Teflon.

More application, pls feel free to contact with Cindy(sales9@defupump.com). We gladly provide technical assistance to you.