General Information - HYDAC International GSV Instrucciones De Servicio

1. General information

This operating manual applies to the following
safety equipment:
– direct-acting gas safety valves, model GSV,
– 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 equipment is defined as "Devices having
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 fuses (hereafter referred to as GMP) are
used to protect the hydraulic accumulator
EN
from excessive temperature. They 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 must not 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 solely responsible for ensuring
compliance with these regulations.
The Declaration of Conformity and other
documentation supplied with the safety
equipment must be kept safely at the place of
installation for the installation inspection and for
subsequent repeat testing.
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NOTICE
Safety equipment must only be installed by
suitably trained specialist staff.
Safety equipment 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 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 mounted
on/removed from hydraulic accumulators.
Do not perform any welding, soldering or
mechanic work on safety equipment.
Safety equipment must only be
operated using nitrogen. Never
use oxygen or air –
Risk of explosion!
Danger of bursting and loss of
operating permission if machining
and/or welding/soldering
operations are carried out!
WARNING
The safety equipment can become hot:
Risk of burns.
NOTICE
For legal information, see www.hydac.com.