Brand:-
Model:-
MOQ:-0 -
4WE4,4WE3,4WE6,4WE10 Rexroth Hydraulic solenoid directional valves ,NG4 directional valve
Features:
- Direct solenoid actuated directional spool valve
high performance version
- Wet pin DC or AC solenoids with removable coil
- Solenoid coil can be rotated through 90 °
- It is not necessary to open the pressure tight
chamber when changing the coil
- Electrical connections either as individual or
central connections
-Hand override, optional
Functional description, section
Essentially 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 spoof (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).
The force of the solenoids (2)acts via the plunger (5)on the control spool (3)and pushes this from its neutral position to the required end position. 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). An optional hand override (6),allows movement of the control spool (3)without energising the solenoid.
| Max. operating pressure (Mpa) | port A, B, P | to 35.0 |
| To21.0(=);to16.0(~)If the operating pressure is above the pressure permitted at the T port. | ||
| port T | For ports A and B, the T port must be used as a drain connection | |
| Max. flow L/min | To 80(=); To60(~) | |
| Pressure Fluid | Mineral oil or Phospate ester | |
| Viscosity range mm²/s | 2.8~500 | |
| Temperature range | -30~+80 | |
| Degree of contamination | Max. permissible degree of contamination of the fluid is to NAS 1638,class 9.β10≥75 | |
Technical data
Hydraulic
Electrical
| Voltage type | DC Voltage | AC Voltage |
| Available voltage V | 1224426096 | 42110120230 |
| 110180205220 | 50760Hz | |
| Power requirement | 30 | |
| Holding power | - | 50VA |
| Switch-on power | - | 220VA |
| Duty cycle | 100% | |
| Switch on time (ms) | 25 to 45 | 10 to 20 |
| Switch off time (ms) | 10 to 25 | 15 to 40 |
| Protection to DIN 40050 | IP65 | |
| Switch frequency cycles times/h | 15,000 | 7,200 |
