To begin with, we can separate the HYDAC Charging Kits into two categories:
- The charging and testing units. The HYDAC universal charging and testing unit FPU-a, used to charge bladder, piston and diaphragm accumulators with nitrogen. Therefore, it also helps to test and alter the pre-charge pressure.
- The nitrogen charging units. The HYDAC N2-Server, used for the charging of accumulators, helps indeed for supplementing the pre-charge pressure and/or for the charging of accumulators stations.