Service Life; Customer Service - HYDAC International SB Série Mode D'emploi

6.

Service life

Like all pressure vessels, HYDAC bladder
accumulators have a finite service life. The
service life is dependent on the cyclic test
pressure and on the number of load reversals.
The permitted load reversals are specified in
the Declaration of Conformity. The authorised
representative can use this data to determine
the operating life of the bladder accumulator
(housing strength) depending on the operating
conditions of the hydraulic system.
A physically induced transfer of gas to the
bladder or bladder rupture can cause gas to
collect in the hydraulic system. If the pressure
falls, this gas expands significantly. Appropriate
measures must be taken on the system side to
relieve the gas.
Instructions for the disposal of
hydraulic accumulators
DANGER
Before carrying out any work on hydraulic
accumulators, the relevant safety precautions
must be taken.
When nitrogen is released from hydraulic
accumulators in enclosed spaces, adequate
ventilation must be provided.
Risk of suffocation.
– Depressurise the fluid side.
– Release pre-charge pressure.
– Remove closing elements (e.g. valves/plugs)
on the gas and fluid sides.
– Disassemble the hydraulic accumulator into
its constituent parts and dispose of them
according to material type.
7.

Customer service

Service, repeat testing and repairs can be
carried out at the HYDAC head office:
HYDAC Service GmbH
Servicenter - Werk 13
Postfach 1251
D-66273 Sulzbach/Saar
Friedrichsthalerstr. 15
D-66540 Neunkirchen/Heinitz
Tel.: +49 (0) 6897 / 509-01
Fax: +49 (0) 6897 / 509-324
Internet: www.hydac.com
or at all national and international HYDAC
sales and service centres.
NOTE
Key to fold-out pages:
2 I = Horizontal transport with strap
2 II = Vertical transport with eye bolt
2 III = Horizontal transport with magnet
4 I = Charging and testing unit
4 II = SAF circuit diagram
5 III = Torque values
GB
47