HYDAC International GSV Instrucciones De Servicio página 22

1. Document information
619200523-5
This document contains important information
on the commissioning and handling of
HYDAC safety devices of the following types:
● Direct-acting gas safety valves GSV
● Temperature fuses GMP
Other relevant documents with further safety
and product information:
Number Title
3.000 HYDAC Accumulator technology
3.552 Safety equipment for hydraulic
accumulators
3.100.BA Operating instructions
Diaphragm accumulators
3.201.BA Operating instructions
Bladder accumulators
3.301.BA Operating instructions
Piston accumulators
EN
3.501.BA Instruction manual for charging
and testing unit FPU
2. Product information
619902091-5
The gas safety valve (referred to as "GSV") is
designed to protect the hydraulic accumulator
in the event that the permitted gas pressure is
exceeded. It consists of a housing which
contains a compression spring for setting the
cracking pressure.
The temperature fuse (referred to as "GMP")
is used to protect the hydraulic accumulator
from excessive temperatures. It consists of a
housing containing a support ring which melts
in the event of a fire, to release the gas.
Fold-out pages
Fig. Content
[I-1] Mass flow m as a function of the
pressure setting p (GSV)
[I-2] Fuse temperature as a function of
pressure p (GMP)
[III-1] GSV
[III-2] GMP
[IV-1] Gas charging connection for
bladder accumulators
[IV-2] Gas charging connection for piston,
diaphragm and metal bellows accu-
mulators
Design
Designation
GSV
Designation
Cap
Lead-seal
Discharge opening
Housing
Hex. connection
Seal ring
Screw plug
GMP
Discharge opening
Housing
Holes for hook and pin spanner
according to DIN 1810B
Seal ring
Screw plug
Service life
In the safety devices, the seal ring 12 [III-1]
is considered to be the component which
limits service life due to ageing.
Like all safety valves, the GSV has a finite
service life. Amongst other things, this is
dependent on the number of operations,
where the seal is subject to varying stress.
The GMP releases/opens once only in the
event of elevated temperature and then
needs to be replaced.
3. Safety information
619999627-5
3.1 Basic guidelines
620001163-5
Intended use
● Intended use of the safety device exclu-
sively includes fluid-side protection from
excess pressure and shutting off and
discharging the hydraulic accumulator.
● The regulations relating to safety devices
applicable in the country of installation
must be observed prior to commissioning
and during operation.
Obligations of the owner
● 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.
Position
22 / 80
Position
1
2
3
5
11
12
13
3
5
11
12
13
INT 3.504.BA8/03.23