General Information - HYDAC International GSV Notice D'utilisation

1.

General information

These operating instructions apply to the
following safety equipment:
– direct-acting gas safety valves, model GSV,
– temperature fuses, model GMP.
According to the European Pressure
Equipment Directive (PED) safety equipment is
always classified under Category IV.
Approval is generally according to module B+D
(EC type examination). Other modules are
possible on request.
Safety devices are defined as "devices with a
safety function".
The gas safety valves (hereafter referred to
as GSV) are used to protect the hydraulic
accumulator if the permissible gas pressure
is exceeded. They consist of a housing which
contains a compression spring for setting the
cracking pressure.
The temperature fuses (hereafter referred to
as GMP) are used to protect the hydraulic
accumulator from excessive temperature. They
EN
consist of a housing containing a support ring
which melts in the event of a fire, to release the
gas.
NOTICE
The GMP is not suitable for providing
pressure protection of a hydraulic
accumulator and can only be used in
combination with a pressure cut-off.
The regulations relating to safety equipment
applicable in the country of installation must be
observed prior to commissioning and during
operation.
The owner is responsible for the safety
devices being used as intended and for these
regulations being complied with.
The documentation supplied with the safety
devices must be kept in a safe place for
the installation inspection and any periodic
inspections.
30
NOTICE
Safety devices must only be installed by
suitably trained specialist staff.
Safety devices may only be disassembled by
HYDAC Customer Service.
Incorrect installation or handling can lead to
serious accidents.
Gases under pressure.
After discharging and/or completely draining
the hydraulic accumulator (e.g. to depressurise
the hydraulic system before work is carried
out), the accumulator can build up an amount
of pressure again if the lines are later shut off
on the fluid side.
All the fluid-side lines connected to the
hydraulic accumulator must therefore be
depressurised and after that the lines must
remain open.
Only then may the hydraulic accumulator be
removed from the hydraulic system.
Before working on the accumulator itself (e.g.
installing or removing safety equipment),
the gas side of the accumulator must be
depressurised and remain open. Ensure that
the gas side is depressurised.
Only then may safety equipment be installed on
/ removed from the accumulator.
On no account must any welding, soldering or
mechanical work be carried out on the safety
devices.