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Translation from German
Limits of use
The product may only be operated within the speci-
fied limits of use. The relevant details can be found
in "Technical data" (section 16.).
The ambient conditions must be ob-
served. Unauthorised temperatures,
shocks, the effects of aggressive chemi-
cals, radiation, unauthorised electromag-
netic emissions may result in disruptions
and failures.
Observe the limits of operation set out
in "Technical data" (section 16.).
Contamination
The function and service life of the valve are heavily
dependent on the purity and quality of the pressure
fluid and depend upon the operating conditions of
the hydraulic components.
Appropriate filters must be used and regular in-
spections of the medium must be carried out to
prevent contamination of the pressure fluid. The
permitted level of contamination is set out in the
"Technical data".
Be aware of three important sources of
contamination:
• Contaminations entering during instal-
lation
• Contaminations occurring during operation
• Dirt entering from the surroundings
3. Remaining risk
Allergic reactions
Hydraulic oil can cause allergic reactions on sus-
ceptible skin. This can be prevented by taking the
precautions that are usual when handling min-
eral oil products and by using personal protective
equipment.
Leaking plugs
Leaking plugs can cause a malfunction.
That is why the plugs must be checked
for leaks at the regular maintenance
interval.
Leaking plugs may constitute a safety
hazard, so the valve must be returned
to the manufacturer for repair.
R_V-DSDU 5715-661 UK.indd 11.12.19
Pilot Operated Pressure Relief Valves
Series R4V*/R6V*/DSDU*
Lightning
If electronic components are exposed
to electromagnetic fields as a result of
lightning, they must be checked to ensure
they are still working perfectly.
If there is a malfunction, the product must
be returned to the manufacturer.
Temperature
The surface of our product may heat up in use.
The service temperatures may exceed
the temperature threshold for burn injury,
70°C. Above this threshold, even brief
contact with the surface may result in a
burn.
The only way to consistently prevent
burn injuries is to use personal protec-
tive equipment and to remain safety-
conscious at all times.
If integrated electronics are exposed
to a temperature above 80°C, they may
malfunction.
Power failure
Pressure relief valve series R6V*V* / R6V*W*
with vent function
In a power failure, the pressure relief valve
is automatically depressurised because
the vent valve no longer receives current.
You must check whether this creates
potential hazards when the system/
machine is used.
7
Parker Hannifin Corporation
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