They are used to transfer all kinds of high viscosity liquids, chemicals and liquids containing solid particles. Since they work with compressed air, they are the most preferred pumps for the safe transfer of liquids that have the risk of burning and/or explosion.
There are models with polypropylene, aluminum and stainless steel bodies between 1/4" and 3". Diaphragm, ball valve and valve seat are determined and selected according to the chemical properties of the liquid that will pass through the pump.
