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Translation from German
Electronic control system
Dependent on the concrete type, the valve series
R6V*V* / R6V*W* with vent function requires an
electronic control system.The appropriate electronic
control system can be selected from the catalogue
("Electronics" section). Please ask the factory if
you are not clear.
Connecting to an unsuitable electronic
control system may result in irreparable
damage to the valve or the electronic
control system.
Choice of solenoid
The choice of a suitable solenoid is an important
factor in the operational reliability of the valve.
Various valve series are available with several
options for solenoid voltage. If the solenoid can be
adjusted by setting parameters in the electronic
control system, the suitable solenoid options must
be selected.
Note about using valves with 24 V sole-
noids:
Because the coil resistance increases by
up to 40% on heating, the electronic control
system increases the solenoid voltage in
order to keep the set current constant. In the
case of solenoids with a nominal voltage of
24 V, this requires the supply voltage from
the electronic control system to be higher
than 24 V in order to supply the solenoid's
rated current. For example, if solenoids with
nominal data 24 V / 1.3 A are used, the
operating voltage of the electronic control
system may have to be increased to up to
30 V in order to ensure the solenoid is cor-
rectly energised.
For this reason, choose solenoids with
lower voltages!
A suitable tool must be used for manual
emergency actuation of the solenoid.
R_V-DSDU 5715-661 UK.indd 11.12.19
Pilot Operated Pressure Relief Valves
Series R4V*/R6V*/DSDU*
Pressure fluids
Certain rules apply to valve operation using differ-
ent pressure fluids:
Mineral
oil
Oil in water
HFA
emulsions
Water in oil
HFB
emulsions
HFC
Water glycols
Anhydrous fluids
HFD
(phosphate ester)
The details of the various pressure fluids
are provided for information only and do
not replace in-house testing under the
applicable operating conditions. In par-
ticular, the details cannot be interpreted
as a guarantee of media compatibility.
For detailed information about pressure
fluids, see VDMA sheet 24317 and DIN
51524, 51502. Special sealing materials
are supplied depending on the fluid used.
Please ask the factory if you are unsure.
5
No restrictions
Mandatory check
Mandatory check
Possible restric-
tions, recommend-
ed check
Possible restric-
tions, recommend-
ed check
Parker Hannifin Corporation
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