Datasheet

Model/Valve Specifications
N.C.
Passage symbol
N.O.
Passage symbol
Normally Closed (N.C.)
Normally Open (N.O.)
Port size
Size
Orifice diameter
[mmø]
Model
Maximum operating
pressure differential
[MPa]
0.9
0.45
0.2
0.8
0.15
0.8
0.3
320
320
320
490
490
620
620
2
3
5
4
7
5
8
1/8, 1/4
1/4, 3/8
1/4, 3/8
1
2
3
AV (x 10
−6
m
2
)
0.23
0.42
0.63
0.63
1.08
0.75
1.58
5.5
10.0
15.0
15.0
26.0
18.0
38.0
Conversion Cv
Flow-rate characteristics
VX245
VX255
VX265
Weight
[g]
Note) Weight of grommet type. Add 10 g for conduit type, 60 g for conduit terminal type respectively.
Port size
Size
Orifice diameter
[mmø]
Model
Maximum operating
pressure differential
[MPa]
1
0.6
0.2
1
0.15
1
0.3
0.1
0.1
2
3
5
4
7
5
8
10
10
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/2
1
2
3
AV (x 10
−6
m
2
)
0.23
0.42
0.63
0.63
1.08
0.75
1.58
2.21
2.21
Conversion Cv
Flow-rate characteristics
VX215
VX225
VX235
Weight
[g]
5.5
10.0
15.0
15.0
26.0
18.0
38.0
53.0
53.0
300
300
300
460
460
580
580
580
630
Fluid and Ambient Temperature Valve Leakage
FKM for high temperature
Seal materialFluid Leakage rate
1.0 cm
3
/min or less
0.1 cm
3
/min or less
FKM for high temperature
Steam
Heated water
Steam
Heated water
Seal materialFluid
Leakage rate
1.0 cm
3
/min or less
0.1 cm
3
/min or less
Ambient temperature [°C]
−20 to 60
Fluid temperature [°C]
Steam: 183 or less
Heated water: 99 or less
Internal Leakage
External Leakage
21
21
∗ Can be used with heated water.
Refer to “Glossary of Terms” on page 29 for passage symbols.
Note)
Note)
Single UnitFor Steam
Series VX21/22/23
18