Tokyo KEIKI TOKIMEC Solenoid operated directional control valves DG4V-3
Models:
DG4V-3-2A
DG4V-3-2N
DG4V-3-2C
DG4V-3-6C
DG4V-3-8C
DG4V-5
| Model Code | Max. Working Pressure MPa | Max. Flow L/min | Allowable Tank Port Back Pressure MPa | Max. Switching Frequency (cles/min) | Weight kg |
| AC | DC | AC/DC Conversion | Single Solenoids | Double Solenoids |
| DG4V-3 | 35 | See"Pressure-Flow Characteristics" | 20. 6 | 300 | 300 | 120 | AC | DC | AC | DC |
| 1.5 | 1. 6 | 1.8 | 2.0 |
Max. Working Pressure: 35MPa
Allowable Tank Port Back Pressure : 20. 6MPa
Power Consumption: DC 28-31W AC: 19-26W
Insulation Class: H 180℃
Curent values and power consumption varies with temperature conditions. Values shown in table are based on 30°C.
In the AC/DC conversion type, AC power is used to activate the DC solenoid by the built-in rectifier, and it comes with the characteristics featured bv pc solenoids, This means that the items aiven for the pe solenoids aooly for the maximum flow .
Consult Tokyo Keiki for details on solenoids for the supply voltages which are not listed above.
Mounting orientation
To ensure sure switching of no spring detented type
valves, mount valves so spool axis is horizontal. There are
no mounting attitude restrictions for other spool/spring
arrangements.
Solenoid energization
Always ensure that one side of solenoid is deenergized
before energizing the opposite side. For spring centered
and spring offset valves, solenoid should be continuously
energized during circuit switching. Deenergization of
solenoid will cause spool to return to prescribed position
by spring force. For no spring detented type valves, spool
will be maintained in switched position by the detent but to
ensure sure circuit switching, solenoid should be energized
for more than 0.1 second.
T(tank)port piping
Prevent abnormal pressure surges above the allowable
back pressure rating from being generated in T port. Valve
is wet armature type so ensure that valve is always filled
with oil.
Using valves as two-way and three-way
Valve is designed as four-way and max. flow is limited when
using as two or three-way valves. Consult Tokyo Keiki for
details.
Long periods of solenoid energization
Care should be paid as long periods of solenoid
energization at high pressure may cause spool sticking and
switching malfunction.
Malfunctions due to surge pressure
Avoid combining flows of tank lines prone to surge
pressures. Surge pressures in T port may lead to spool
malfunctions. No spring detented type valves are
susceptible to such malfunctions during deenergization.
Manual operation
For manual switching, push the manual override pin. Be
aware that actuation force increases with higher back
pressure. (See graph)
1 Hydraulic fluid
Omit: mineral oil based fluid, water-glycol based fluid
F3: Phosphate ester
2 Solenoid operated directional control valve (gasket mounting)
Wet amature type
3 Mounting dimensions :3:1S0 4401-03
5 Spool/spring arrangement
A: Spring offset, A type (2 position, single solenoid)
B: Spring offset, B type (2 position, single solenoid)
C: Spring centered type (3 position, double solenoid)
N: No spring detented type (2 position, double solenoid
6 Solenoid assembly configuration (for spring sets, type A and E
Omit: standard (energized: P to B, A to T)
L: Left hand build (energized: P to A, B to T)
7 Electrical wiring system
P: Plug-in solenoids, conduit box, G 1/2
U: DIN43650 connectors, Pg.11
KU: Flying leads (standard lead wire length 350 mm,
DC 12 V, 24 V only)
8 Electrical accessories
Omit: no accessories (electrical wiring P, KU) and
for no connectors (electrical wiring U)
1: Connectors without accessories (electrical wiring U)
2: With indicator lamp (AC standard)
4: With surge suppressor (electrical wiring KU, slow solenoid deenergize)
7: With indicator lamp and surge suppressor (DC standard)
9: ADC solenoid rectifier (fast solenoid deenergization), indicator lamp and surge suppressor
12:ADC solenoid rectifier (slow solenoid deenergization), indicator lamp and surge suppressor
