(Pilot port)
(Breathing port)
(R port)
(P port)
(A port)
Switching plate
(Mounting
holes)
2 x Rc
1
8
M5 x 0.8
2 x ø8.4
Rc 1
1
2,
3
4,
Rc 1
1
2,
3
4,
Rc 1
1
2,
3
4,
M4 x 0.7
VGA342
04
04 1/2
06
3/4
10 1
A
B
Rc
F G
N NPT
T NPTF
A
1/2
3/4
1
RAP
N.C. N.O.
N.C. N.O.
PassagePort size
Thread type
Ambient temperature and operating fluid temperature
Return mechanism
Air + Spring
Type of actuation
N.C./N.O. (Changeable)
Operating type
Air operated type
Air
Operating pressure range
0.2 to 0.9 MPa
–10 to 50°C (No freezing. Refer to page 5.)
Same as operating pressure
Lubrication
Impact/Vibration resistance
Note)
150/50 m/s
2
Specifications
Pilot pressure
Note) Impact resistance: No malfunction from test using drop impact tester, to axis and right angle
directions of main valve, each one time when pilot signal ON and OFF.
(Value in the initial stage)
Vibration resistance
: No malfunction occurs on the test with one sweep from 45 to 1000 Hz, to
axis and right angle directions of main valve each time when pilot signal ON
and OFF. (Value in the initial stage)
Flow Characteristics
Port
size
Flow characteristics
Port size
Effective area (mm
2
)
Dimensions
Precautions
Be sure to read this before han-
dling. Refer to front matters 58
and 59 for Safety Instructions
and pages 3 to 7 for 3/4/5 Port
Solenoid Valve Precautions.
1. Change of fluid passage
Caution
Please note that the pressure in the valve
should be exahusted when changing the
fluid passage.
Loosen the hexagon socket head cap screw
M4 x 0.7. Rotate the NC/NO switching plate
and align the desired passage symbol
NO/NC with the mark on the adapter
plate. However, the X symbol is not applica-
ble. For piping, refer to the table below.
Screw tightening torque M4: 1.4 N·m
Piping
Port
Fluid passage
EXH side
(2 port:
Plug)
Inlet side
Outlet
side
Outlet
side
Inlet
side
EXH side
(2 port:
Plug)
2. Other
M5 size hole at the left side of the
adapter plate is a breathing port for
spool valve. Do not plug or tighten it.
Take sufficient precations and confirm safety
when changing the flow path and restarting
after the changes.
Nil
Normally closed (N.C.)
Normally open (N.O.)
JIS Symbol
1→2(P→A) 2→3(A→R) 2→1(A→P) 3→2(R→A)
1→2(P→A) 2→3(A→R)
1808
3 Port Air Operated Valve
Series VGA342
How to Order
Fluid
Not required (Use turbine oil Class 1 lSO VG32, if lubricated.)
N.C.
N.O.
