Function and configurationsType 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 ...
Product Detail
Function and configurations
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 impulse 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). 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 initial 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.
Type 4WE 6.. L6X/O...
(only for symbols A, C and D)
This version refers to directional valves with two spool positions and two solenoids without detent.
In the de-energized condition, there is no defined spool position.
Type 4WE 6.. L6X/OF...
(impulse spool, only for symbols A, C and D)
This version refers to directional valves with two spool positions, two solenoids and a detent. Due to this, both spool positions are positively held, and a permanent energization of the solenoid is not required.
Throttle insert (type 4WE 6..L6X/.../B..)
The use of throttle inserts is required, due to prevailing operating conditions, flows can occur during switching processes that exceed the performance limit of the valve. They are inserted in the P-channel of the directional valve.
Ordering code
Symbols
Characteristic curves (Measured at ϑoil = 40°C ± 5°C, using HLPM46)
7 Symbol "R" in switched positions B → A
8 Symbol "G" and "T" in neutral position P → T
9 Symbol "H" in neutral position P → T
| Spool symbol | Flow direction | |||
| PtoA | P to B | A to T | B to T | |
| A,B | 3 | 3 | - | - |
| C | 1 | 1 | 3 | 1 |
| D,Y | 5 | 5 | 3 | 3 |
| E | 3 | 3 | 1 | 1 |
| F | 1 | 3 | 1 | 1 |
| T | 10 | 10 | 9 | 9 |
| H | 2 | 4 | 2 | 2 |
| J,Q | 1 | 1 | 2 | 1 |
| L | 3 | 3 | 4 | 9 |
| M | 2 | 4 | 3 | 3 |
| P | 3 | 1 | 1 | 1 |
| R | 5 | 5 | 4 | - |
| V | 1 | 2 | 1 | 1 |
| W | 1 | 1 | 2 | 2 |
| U | 3 | 3 | 9 | 4 |
| G | 6 | 6 | 9 | 9 |
Technical data
| Fixing position | Optional | |
| Environment temperature range ℃ | -30 to+50 (NBR seal) | |
| -20 to+50 (FKM seal) | ||
| Weight | Single solenoid kg | 1.5 |
| Double solenoids kg | 2.0 | |
| Max.operating pressure | Port A,B,P bar | 350 |
| Port T bar | 210 (DC),160 (AC), when the operating pressure exceed the permission value, port T must be used as drain port for spool symbol A and B | |
| Max.flow-rate L/min | 80(DC),60(AC) | |
| Flow cross section m㎡ (switching neutral position) m㎡ | for symbol Q 6% of nominal cross section | |
| for symbol W 3% of nominal cross section | ||
| 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 m㎡/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 | |
| Usable voltage V | 12,24,28,48,96,110,205,220 | 110,127,220 | |
| Permissible voltage (deviation) % | Standard solenoid: +10~-15 Large-scope solenoid: +20~-30 | ||
| Power consumption W | Standard solenoid: 30 Large-scope solenoid: 32 | ||
| Holding power VA | - | 50 | |
| Making capacity VA | - | 220 | |
| Duty | Continuous working | ||
| Switching time to ISO 6403 | ON ms | 25 to 45 | 10 to 20 |
| OFF ms | 10 to 25 | 15 to 40 | |
| 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 (PE ⏚).
(For other type voltage please consult us.)
Performance limits (Measured at ϑoil = 40°C ± 5°C, using HLPM46)
The specified switching performance limits are valid with two directions of flow (e.g. from P to A and simultaneous return flow from B to T).
Due to the flow forces acting within the valve, the permissible switching performance limit can be significantly lower with only one direction of flow (e.g. from P to A, with port B being closed)!
The switching performance limit was determined with the solenoid at operating temperature, at 15 % under-voltage and without tank pre-loading.
| Solenoid DC | Solenoid AC-50Hz | Solenoid AC-60Hz | |||
| Curve | Spool symbol | Curve | Spool symbol | Curve | Spool symbol |
| 1 | A,B1) | 11 | A,B1) | 19 | A,B 1) |
| 2 | V | 12 | V | 20 | V |
| 3 | A,B | 13 | A, B | 21 | A,B |
| 4 | F,P | 14 | F,P | 22 | F,P |
| 5 | J | 15 | G,T | 23 | G,T |
| 6 | G,H,T | 16 | H | 24 | J,L,U |
| 7 | A/O,A/OF,L,U | 17 | A/O, A/OF,C/O, | 25 | A/O,A/OF, Q,W |
| 8 | C,D,Y | C/OF, D/O, D/OF | 26 | C,D,Y | |
| 9 | M | E,J,L,M | 27 | H | |
| 10 | E, C/O,C/OF R2),( | Q,R2,,U,W | 28 | C/O, C/OF, D/O | |
| D/O, D/OF, Q, W | 18 | C,D,Y | D/OF,M,R,E,R2) | ||
Notes: ¹) With manual override; ²) Return flow from actuator to tank.
| Solenoid DC | |
| Curve | Solenoid voltage(V) |
| 1 to 10 | 12,24,48,96,205 |
| Solenoid AC | ||
| Curve | Solenoid voltage | |
| 11 to 18 | W110 | 110V,50Hz |
| W127 | 127V,50Hz | |
| W230 | 230V,50Hz | |
Performance limits (Measured at ϑoil = 40°C ± 5°C, using HLP46)
| Solenoid AC | ||
| Curve | Solenoid voltage | |
| 11 to 18 | W110 | 110V,50Hz |
| W127 | 127V,50Hz | |
| W230 | 230V,50Hz | |
| Solenoid DC | |
| Curve | Solenoid voltage |
| 1 to 10 1) | 110,180 |
| Curve | Spool symbol | Curve | Spool symb ol | Curve | Spool symbol |
| 1 | A,B | 6 | T | 101) | E,R,C/O,C/OF, D/O, D/OF, Q, W |
| 2 | V | 7 | H | ||
| 102) | R,C/O,C/OF,D/O,D/OF, Q,W | ||||
| 3 | F,P | 8 | C,D | ||
| 4 | J,L,U | 9 | M | 11 | A/O,A/OF |
| 5 | G | 12 | E |
| Solenoid AC | |
| Curve | Solenoid voltage |
| 1 to 12, see102) | 220 |
Unit dimensions
Valve with DC or rectification AC solenoid
Unit dimensions
Valve with AC solenoid
