Inspection Prior To Use; Recommendations For Installation; Safety Equipment - HYDAC International QHP Instrucciones De Servicio

2. Storage
2.1 Complete Accumulators
All accumulators must be stored in clean,
dry and cool conditions away from direct
sunlight.
Recommendations for short term
storage:
Provided the accumulators are stored in
clean, dry and cool conditions away from
direct sun light they can be left in their
original packing for several weeks without
deterioration.
Recommendations for long term storage:
During long term storage it is important
to ensure the gas side is pre-charged with
nitrogen (purity 99.995%) to 10 Bar
maximum. The remaining void on the
hydraulic side is then to be filled with the
operating fluid to lubricate and to prevent
deterioration.
CAUTION:
Piston accumulators with indicators must
only be operated or stored long term in
the vertical position.
The accumulator is now ready for long
term storage. Long term storage must
not exceed one year.
3. Installation and safety equipment

3.1 Inspection prior to use

All accumulators should be inspected on
receipt for any damage which may have
occurred during transit. Read all
instructions thoroughly before beginning
any type of work.
WARNING: Check that the
maximum working pressure of the
accumulator is not less than the
maximum working pressure of the system
to which it is being fitted (see 7. Markings
section)

3.2 Recommendations for installation

Full comprehensive recommendations for
installation can be requested from our
technical department.
CAUTION:
If the accumulator was in storage prior to
fitting to the hydraulic system depending
on the recommendations the following is
advised:
After short term storage: Accumulator
must be pre-charged with correct
nitrogen pressure prior to commissioning.
After long term storage: Accumulator
should be drained by expelling all excess
system fluid. Accumulator can then be
pre-charged to the required pressure
before commissioning. Refer to 4.
commissioning

3.3 Safety equipment

It is essential that the accumulator is
protected from over pressurisation.
(Isolation valve, pressure release device
between accumulator and isolation valve,
burst disc assembly to relieve nitrogen
pressure, or excess temperature
protection equipment)
Overpressure protection devices are
available on request from QHP
GB
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