The HYDAC FPU charging and testing unit is used to charge accumulators with nitrogen or to check/change the existing pre-charge pressure in accumulators.
For this purpose, the charging and testing unit is screwed onto the gas valve of the hydraulic accumulator and connected to a nitrogen bottle via a flexible hose with a pressure reducer. The A3 adapter is needed to charge and test the HYDAC bladder accumulator (included in scope of delivery).
HYDAC nitrogen charging units make it possible to rapidly and inexpensively charge or test the required gas pre-charge pressures in bladder, piston and diaphragm accumulators. They guarantee an optimal utilisation of standard commercial nitrogen bottles up to a residual pressure of 20 bar and a maximum pre-charge pressure of 350 bar.
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