This 1:1 air operated double diaphragm pump is made of aluminium and can be used to transfer water, mineral oils and diesel. This unit is able to pump clean liquids, or used liquids that contain solids with a maximum diameter of 4mm. The working pressure of the pump is 29 - 115 psi (2 - 8 bar) and this should be controlled using an air regulator. With the pressure set to 8 bar (which it must not exceed) that pump can achieve a maximum flow rate of 60L/min. Liquids must not exceed 80°C.