On site we have a dual fuel Gas turbine GE 9FA DLN2.0. The liquid fuel (diesel oil) firing has not be used except 24 hours during initial commissioning. We want to construct an unloading station to take diesel from the trucks and fill the diesel tank. My question is about the materials of the pump parts, impeller, casing, shaft, etc. My main concern is to select materials that of for a reason are touching each other it will not create a spark and be an ignition source.