Datasheet
Fluid and Ambient Temperature
Model/Valve Specifications
Note) Kinematic viscosity: 50 mm
2
/s or less
Ambient temperature [°C]
−20 to 60
Fluid temperature [°C]
−5
Note)
to 60
The kinematic viscosity must not exceed 50 mm
2
/s.
The special construction of the armature adopted in the
built-in full-wave rectifier type gives an improvement in
OFF response by providing clearance on the absorbed
surface when it is switched ON.
When the fluid is oil.
For Oil
Port size
Body
material
Orifice diameter
[mmø]
Model
Maximum system
pressure [MPa]
1.5
10
15
20
25
1/4 (8A)
3/8 (10A)
1/2 (15A)
3/8 (10A)
1/2 (15A)
3/4 (20A)
1 (25A)
AC DC
Av (x 10
−6
m
2
)
46
58
58
110
130
230
310
0.5
0.02
0.7 0.7
0.4
1.9
2.4
2.4
4.5
5.5
9.5
13
480
480
480
720
720
840
1360
Conversion Cv
Flow-rate characteristics
Maximum operating pressure differential
Minimum operating
pressure differential
Note 1)
[MPa]
Normally Closed (N.C.)
VXD233
VXD243
VXD253
VXD263
Weight
[g]
Stainless
steel,
C37
(Brass)
Valve Leakage
Internal Leakage
Note) Leakage is the value at ambient temperature 20°C.
External Leakage
FKM
Seal material
Leakage rate (Oil)
Note)
0.2
cm
3
/min or less
FKM
Seal material
Leakage rate (Oil)
Note)
VXD23 to 26 (8A to 25A)
VXD23 to 26 (8A to 25A)
0.1
cm
3
/min or less
2
1
Note 1) Be aware that even if the pressure difference is above the minimum operating pressure differential when the valve is closed, the pressure
difference may fall below the minimum operating pressure differential when the valve opens, depending on the power of the supply source (pumps,
compressors, etc.) or the type of pipe restrictions.
Note 2) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN terminal type, 60 g for conduit terminal type respectively.
Refer to “Glossary of Terms” on page 33 for details on minimum operating pressure differential, the maximum operating pressure differential, maximum
system pressure.
∗ Possible to use this for air and water.
Note that the maximum operating pressure differential and
flow-rate characteristics should be within the specifications of
the fluid used.
Refer to “Glossary of Terms”
on page 33 for symbol.
Symbol
N.C.
Note 2)
Series VXD
10