Charging and testing units
Charging and testing units

Charging and testing units

The HYDAC universal charging and testing unit FPU-1, is used to charge bladder, piston and diaphragm accumulators with nitrogen, or to test and alter the pre-charge pressure. Due to the wide product range of gas-side adapters to the accumulator and to the nitrogen bottle, HYDAC ensures the charging of practically all hydraulic accumulators. An extensive product range of accessories, e.g. hoses, the pressure-reducing valve and also the case, can be assembled in accordance with customer preferences to round out the programme.

In the standard version, the FPU-1 is comprised of:

  • Valve body,
  • Spindle with elastic seal,
  • Check valve and release valve,
  • Pressure gauge with display ranges up to 400 bar,
  • Charging hose (in accordance with EC Machinery Directive, DIN EN 982, DIN §N 853 - 857) and
  • A3 adapter for bladder accumulators.
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