Characteristics - Eaton VICKERS SystemStak Manual

Characteristics

High performance
DG4V-3, 6* design
Standard performance
DG4V-3S, 6* design
Mounting interface
ISO 4401 size 03
ANSI/B93.7M size D03
CETOP RP65H, size 3
DIN 24340, NG6
Basic characteristics
Maximum pressure:
DG4V-3 350 bar (5075 psi)
DG4V-3S 350 bar (5075 psi)
Maximum flow:
DG4V-3 up to 80 l/min
(21 USgpm)
DG4V-3S up to 40 l/min
(10.5 USgpm)
DG4V-3 models are direct
solenoid operated four-way
directional control valves.
Their primary function in a
hydraulic circuit is to direct
fluid flow. This, in turn, would
determine the direction of
movement of a fluid cylinder,
or the direction of rotation of
a fluid motor.
Port connections are made
by mounting the valve on
a subplate or manifold. The
valve has wet armature type
solenoids.
Electrical connections to
the valve are made in the
electrical wiring housing or
thru various plug-in connec-
tors such as a DIN 43650
type coil.
Good hydraulic design prac-
tice suggests that detented
models be mounted with
longitudinal axis horizon-
tal. Other models may be
mounted in any position.
Operating considerations
1. Dependent on the applica-
tion and the system filtration,
any sliding spool valve if held
shifted under pressure for
long periods of time, may
stick and not move readily
due to fluid residue forma-
tion. It may therefore need
to be cycled periodically to
prevent this from happening.
2. Surges of fluid in a com-
mon tank line serving two
or more valves can be of
sufficient magnitude to cause
inadvertent shifting of these
valves. This is particularly
critical in no-spring detented
models, separate drain lines
are necessary.
Fluid temperature
Fluid tEmp . minEral oil
Min –20°C (-4°F)
Max.* +70°C (+158°F)
* To obtain optimum service life from both fluid and hydraulic
system, 65°C (150°F) normally is the maximum temperature
except for watercontaining fluids.
coil typE and
FrEquEncy
Dual frequency coils
@ 50 Hz
@ 50 Hz
@ 60 Hz
@ 60 Hz
Single frequency (50 Hz) coils
@ 50 Hz
DC coils
For synthetic fluids consult
manufacturer or Eaton rep-
resentative where limits are
outside those for mineral oil.
Eaton Vickers Solenoid Operated Directional Valves Product Catalog V-VLDI-MC011-E September 2008
Temperature limits
Minimum ambient
-20°C (-4° F)
Maximum ambient
Valves with coils listed in
model code and at stated
percentages of rated voltage.
Construction of a typical
single solenoid model
WatErcontaining
+10°C (+50°F)
+54°C (+129°F)
pErcEntagE maximum ambiEnt tEmpEraturE
VoltagE dg4V-3
107% 40°C (104°F)
110% 30°C (86°F)
107% 50°C (122°F)
110% 40°C (104°F)
110% 40°C (104°F)
110% 70°C (158°F)
Whatever the actual tempera-
ture range, ensure that vis-
cosities stay within the limits
specified in the "Hydraulic
fluids" section.
dg4V-3S
65°C (149°F)
65°C (149°F)
65°C (149°F)
65°C (149°F)
65°C (149°F)
70°C (158°F)
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