4/3, 4/2 and 3/2 Directional Valve with Wet-pin AC or DC Solenoid
Type WE 10...L3X
Features:
– Direct operated directional solenoid valve, standard version
– Porting pattern according to DIN 24 340 form A,ISO 4401 and CETOP-RP 121 H
– Wet pin DC or AC solenoids with detachable coil
– Pressure-tight chamber needs not to be opened for a coil change
Function and configuration
Type WE valves are solenoid operated directional spool valves. They control the start, stop and direction of flow.
The directional control valves consist of housing (1), one or two solenoids (2), the control spool (3), and one or two return springs (4).
In the de-energized condition the control spool (3) is held in the neutral or initial position by means of return springs (4) (except for pulse spools). The control spool (3) is actuated via wet pin solenoids (2).
To ensure proper operation, care must be taken that the pressure chamber of the solenoid is filled with oil.
The control spool(3) is moved to the expected position by solenoid(2) and pushing rod(5), and this gives free-flow from P to A and B to T or P to B and A to T.
When solenoid (2) is de-energized, the control spool (3) is returned to its neutral position by means of the return springs (4).
The solenoids may also control the control spool (3) by an optional override button (6) under the de-energized condition.
For application in voltage pulsation, solenoids with large scope voltage are recommended.
For application in high protective grade, waterproof plug should be used.
Type 4WE10.. L3X/O... (Only for symbols A, C and D)
This Type is a 2-position directional valve with 2 solenoids without detents. The spool position, when the solenoids are de-energised, is not defined..
Type 4WE10.. L3X/OF... (Impulse spool, only for symbols A, C and D)
This Type is a 2-position directional valve with 2 solenoids and detents. Hence, when the solenoids are de-energized, the spool is held in the detented position then the solenoids do not need to be continuously energised.
Throttle insert (type 4WE10...L3X/.../B..)
The use of a throttle insert is required if, due to the operating conditions, flows can occur during the switching process which are larger than the performance limits of the valve allow.
The orifice is to be inserted into the P channel of the directional valve.
Specifications
Symbols
Technical data
| Fixing position | Optional |
| Environment temperature range | ℃ | -30 to +50 (NBR seal) |
| -20 to +50 (FKM seal) |
| Weight | | Independently wiring | central monitoring station |
| Single solenoid | kg | 4.3(DC),3.5(AC) | 4.4(DC),3.6(AC) |
| Double solenoids | kg | 5.9(DC),4.3(AC) | 6.0 (DC),4.4(AC) |
| Max.operating pressure | Port A,B,P | bar | 315 |
| Port T | bar | 210 (DC),160 (AC), when the operating pressure exceeds the permission value, spool symbol A and B must make the |
| Max. flow-rate | L/min | | 120 |
| Flow cross section (switching neutral position) | Version V | mm2 | 11(A/B→T)；10.3(P→A/B) |
| Version W | mm2 | 2.5(A/B→T) |
| Version Q | mm2 | 5.5(A/B→T) |
| Fluid | Mineral oil suitable for NBR and FKM seal |
| Phosphate ester for FKM seal |
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) |
| -20 to +80 (FKM seal) |
| Viscosity range | mm2/s | 2.8 to 500 |
| Degree of contamination | Maximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406 |
Electric data
| Type of voltage | DC | AC 50Hz |
| Available voltage | V | 12,24,281),48,96,110,205,220 | 110,127,220 |
| Voltage tolerance (nominal voltage) | % | Standard solenoid:+10~-15, large-scope solenoid:+20~-30 |
| Power consumption | W | Standard solenoid: 35, large-scope solenoid: 42 | |
| Holding power | VA | – | 50 |
| Making capacity | VA | – | 220 |
| Duty | | Continuous working | |
| Switching time to ISO 6403 | ON | ms | 45 to 60 | 15 to 25 |
| OFF | ms | 20 to 30 | 20 to 30 |
| Switched frequency | times/h | to 15000 | to 7200 |
| Type of protection to DIN 40050 | IP65(Z4,Z5L plug), IP67 (K7 Deutsch) |
| Max. coils temperature | ℃ | 150 | 180 |
Caution: When connecting wires, properly connect the PE conductor. (For other type voltage please consult us.)
Unit dimensions (Dimensions in mm)
Valve with DC or rectification AC solenoid
1.1 Dimension of 3-position, standard version
1.2 Dimension of 3-position, large-scope
Type of voltage
2.1 Dimension of 2-position with solenoid at 'A', standard version
2.2 Dimension of 2-position with solenoid at 'A', large-scope Type of voltage
3.1 Dimension of 2-position with solenoid at 'B', standard version
3.2 Dimension of 2-position with solenoid at 'B', large-scope Type of voltage
4 Plug for valves with one solenoid
5.1 Plug-in connector to DIN 43 650 (rotatable 90°)
5.2 Deutsch connector assembly
5.3 Junction box with lead and light, M22×1.5 interface
6 Space required to remove solenoid
7 Solenoid
8 Space required to remove Plug-in connector
9 Fault inspection override 'N' button
10 Nameplate
11 O-ring 12×2
12 Fix additional port TB on the manifold when necessary
13 Valve fixing screws:
M6×40 GB/T 70.1-10.9, Tightening torque
MA =15.5Nm, must be ordered separately.
It must be ordered separately, if connection plate is needed. Type:
G 66/01 (G 3/8), G 66/02(M18×1.5)
G 67/01 (G 1/2), G 67/02(M22×1.5)
G 534/01 (G 3/4), G 534/02(M27×2)
Valve with AC solenoid
1 3-position valve
2 2-position valve with one solenoid (A, C, D, EA...)
3 2-position valve with one solenoid (B, Y, EB...)
4 Plug for valves with one solenoid
5 Solenoid
6 Space required to remove the solenoid
7 Plug-in connector to DIN 43 650 (Rotatable 90°)
8 Junction box with lead and light, M22×1.5 interface
9 Space required to remove Plug-in connector
10 Fault inspection override 'N' button
11 Nameplate
12 O-ring 12×2
13 Fix additional port TB on the manifold when necessary
14 Valve fixing screws:
M6×40 GB/T 70.1-10.9, Tightening torque
MA =15.5Nm, must be ordered separately.
It must be ordered separately, if connection plate is needed. Type:
G 66/01 (G 3/8), G 66/02(M18×1.5)
G 67/01 (G 1/2), G 67/02(M22×1.5)
G 534/01 (G 3/4), G 534/02(M27×2)
