Brochure

Configuration symbol
Port sizeSize
Orifice
diameter
[mmø]
Model
Maximum operating
pressure differential [MPa]
0.7
0.4
0.2
80
1.6
2.3
3.2
M5, 1/8
2
C [dm
3
/(s·bar)]
b
0.07
0.18
0.30
0.45
0.45
0.38
0.30
0.58
1.10
Cv
Flow-rate characteristics
Normally Closed (N.C.)
Aluminium Body Type
VDW20
Resin Body Type (Built-in One-touch Fittings)
Model/Valve Specifications
N.C.
Weight
[g]
Port sizeSize
Orifice
diameter
[mmø]
Model
Maximum operating
pressure differential [MPa]
0.9
0.4
0.7
0.4
0.2
1.0
1.6
1.6
2.3
3.2
M5
ø3.2
One-touch fitting
ø4 One-touch fitting
M5
ø4 One-touch fitting
ø6 One-touch fitting
1
2
C [dm
3
/(s·bar)]
b Pressurized port 1
Pressurized port 1
0.04
0.07
0.07
0.18
0.30
0.40
0.25
0.45
0.45
0.38
0.14
0.30
0.30
0.58
1.10
Cv
Flow-rate characteristics
VDW10
VDW20
Weight
[g]
Refer to “Glossary of Terms” on page 12 for details on the maximum operating pressure differential.
Fluid and Ambient Temperature
Note) Dew point temperature: –10°C or less
Note) The configuration symbol shows ports 1
and 2 as blocked, but there is actually a
limit to the blocking capability when the
pressure of port 2 is greater than the
pressure of port 1. Please contact SMC
when low leakage performance is
required.
−10 to 50
Ambient temperature [°C]Fluid temperature [°C]
−10
Note)
to 50
Valve Leakage
Internal Leakage
Note) Leakage is the value at ambient temperature 20°C.
External Leakage
NBR
Seal material Leakage rate (Air)
Note)
1 cm
3
/min or less (AIuminium body type)
15 cm
3
/min or less (Resin body type)
NBR
Seal material Leakage rate (Air)
Note)
1 cm
3
/min or less (AIuminium body type)
15 cm
3
/min or less (Resin body type)
45
80
21
Single UnitFor Air
Series VDW
2