Function and configurationType Z4WE6 Isolator valves are solenoid operated directional spool valves. They control the flow connection and isolating of flow.Essentially the directional control valves c...
Product Detail
Function and configuration
Type Z4WE6 Isolator valves are solenoid operated directional spool valves. They control the flow connection and isolating of flow.
Essentially the directional control valves consist of housing (1), one or two solenoids (2), the control spool (3), and 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 valves). The control spool (3) is actuated via wet pin solenoids (2).
To ensure satisfactory operation care should be taken that the solenoid pressure chamber is filled with oil.
The force of the solenoids (2) acts via the push rod (5) on the control spool (3), control spool (3) is pushed from its neutral position to the required position. Then port A1, A2, B1 and B2 can be either connected or disconnected. P and T always flow freely.
When solenoid (2) is de-energised, the control spool (3) is returned to its neutral position by means of the return springs (4).
An optional hand override allows movement of the control spool without energizing the solenoid.
Ordering code
Symbols (① = valve side, ② = sub-plate side)
Technical data
| Fixing position | Optional | |
| Environment temperature range ℃ | -30 to +50 (NBR seals) | |
| -20 to +50(FKM seals) | ||
| Weight | Single solenoid kg | 1.5 |
| Double solenoids kg | 2.0 | |
| Max.operating pressure | Port A,B,P bar | 315 |
| Port T bar | 210 (DC), 160 (AC) | |
| Max.flow L/min | 40 | |
| 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 | |
Electrical data
| Type of voltage | DC | AC 50/60Hz | |
| Usable voltage V | 12,24,96,110,205,220 | 110,220,230 | |
| Voltage tolerance (nominal voltage) % | +10~-15 | ||
| Power consumption (DC) W | 30 | - | |
| Holding power (AC) VA | - | 50 | |
| Switch-on power (AC) VA | - | 220 | |
| Duty | Continuous | ||
| Switched time | ON ms | 20 to 45 | 10 to 20 |
| Accord with ISO 6403 | OFF ms | 10 to 25 | 15 to 40 |
| Switched frequency times/h | to 15000 | to 7200 | |
| Preventive grade according to DIN 40050 | IP65 | ||
Caution: with electrical connections the protective conductor(PE ⏚) must be connected according to the relevant regulations.
Characteristic curves (Measured at ϑₒᵢₗ = 40°C ± 5°C, using HLPE)
| A2 to A1 | A1 to A2 | B2 to B1 | B1 to B2 | A2 to B2 | B2 to A2 | T2 to T2 | P2 to P1 | |
| D24 | 4 | 1 | 2 | 4 | 3 | 2 | 7 | 7 |
| E51 | 3 | 1 | 1 | 3 | - | - | 7 | 7 |
| E53 | 2 | 2 | 2 | 2 | 5 | 2 | 7 | 7 |
| E63 | 2 | 5 | 5 | 3 | - | - | 7 | 7 |
| E68 | 4 | 4 | 6 | 5 | 4 | 5 | 7 | 7 |
| E137 | 1 | 4 | 3 | 2 | 5 | 6 | 7 | 7 |
Performance limit
Unit dimensions
Valve with DC solenoid
Unit dimensions
Valve with AC solenoid
