Datasheet

Fluid and Ambient Temperature
Ambient temperature [°C]
−20 to 60
Fluid temperature [°C]
1 to 99
Model/Valve Specifications
Note) No freezing
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
Av (x 10
−6
m
2
)
46
58
58
110
130
230
310
0.4
0.7
0.02
1.9
2.4
2.4
4.5
5.5
9.5
13
500
500
500
740
740
860
1390
Conversion Cv
Flow-rate characteristics Maximum operating pressure differential
Minimum operating
pressure differential
Note 1)
[MPa]
Normally Open (N.O.)
VXD2A5
VXD2B5
VXD2C5
VXD2D5
Weight
[g]
Stainless
steel, C37
(Brass)
Valve Leakage
Internal Leakage
Note) Leakage is the value at ambient temperature 20°C.
External Leakage
EPDM
Seal material
Leakage rate (Water)
Note)
0.2 cm
3
/min or less
EPDM
Seal material
Leakage rate (Water)
Note)
VXD2A to 2D (8A to 25A)
VXD2A to 2D (8A to 25A)
0.1 cm
3
/min or less
2
1
Refer to “Glossary of Terms”
on page 33 for symbol.
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, 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.
Symbol
N.O.
Note 2)
Series VXD
For Heated water
14