I am working on an acid filtration system and I need to be able to pressurize the effluent from the diaphragm pump such that the acid can be forced through a filter. I am not quite sure if a diaphragm pump can pressurize the influent and also be able to adjust the pressure. Can they do this? Or is there another pump that I should look for?
In general, a diaphragm pump is a constant volume pump that can raise the pressure of the fluid as it is discharged from the pump, as shown in it's pump curve. You can try to find a pump that outputs the needed pressure, or have equipment after the pump to adjust the fluid's pressure.