4WE6Y6X/EG24N9XNK4
Manufacturer: Bosch Rexroth
Material #: R901419620
Model : 4WE6Y6X/EG24N9XNK4
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 4WE6Y6X/EG24N9XNK4 (R901419620) is a high-performance directional spool valve designed for controlling the start, stop, and direction of flow in hydraulic systems. This particular model features two solenoid-actuated spool positions without spring return, which means that in its deenergized state, the control spool does not have a defined basic position. It is equipped with wet-pin DC solenoids that actuate the control spool via a plunger, facilitating the necessary flow direction. The valve's solenoid coil is rotatable by 90 degrees and it offers an electrical connection as an individual connection.
The unit also includes a manual override option that can be concealed, allowing for manual operation without energizing the solenoids. This model is suitable for use in potentially explosive atmospheres as it adheres to Explosion Protection Directive EU standards for IIG and IID areas of application and complies with technical rules EACTRCU for IIG and IID. The type of protection for the valve solenoids is ExecIICT6Gc according to EN standards and ExtcIIICT6DC according to EN standards.
The Bosch Rexroth 4WE6Y6X/EG24N9XNK4 has a maximum operating pressure of 350 bar and can handle maximum flow rates up to 80 l/min. For optimal performance under various operating conditions, a throttle insert may be required to manage flows during switching processes that exceed the valve's performance limit.
This model is part of component series X, indicating its advanced design attributes. It should be noted that due to its design principle, some internal leakage is inherent but may increase over the life cycle of the valve. To ensure stable operation, especially in versions with detent where pressure peaks might cause unintended movements of the control spool, separate return lines or check valves are recommended in the tank line.
The Bosch Rexroth 4WE6Y6X/EG24N9XNK4 offers robust construction and reliable performance for hydraulic applications requiring precise control of fluid flow within explosive environments while contributing to energy-efficient operations through its detent feature which eliminates continuous current application during operation.
$1,869.00 USD
More are expected on April 16, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as April 16, 2025 when ordered in
This product is eligible for factory repair.
The directional valves of type WE are solenoid-actuated directional spool valves. They control the start, stop and direction of a flow.
The directional valves basically consist of the housing (1), one or two electronic 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 central position or in the initial position by the return springs (4) (except for version "O"). The control spool (3) is actuated by wet-pin electronic solenoids (2).
For perfect functioning, the hydraulic system must be bled properly.
The force of electronic solenoid (2) acts via the plunger (5) on the control spool (3) and pushes the latter from its rest position to the required end position. This enables the necessary direction of flow from P to A and B to T or P to B and A to T.
When the electronic solenoid (2) is de-excitated, the return spring (4) pushes the control spool (3) back to its rest position.
An optional manual override (6) allows the control spool (3) to be moved without solenoid energization.
Without spring return "O" (only possible with symbols A, C and D)
This version is a directional valve with two spool positions and two electronic solenoids without detent. The valve without spring return at the control spool (3) has no defined basic position in the de-energized condition.
Without spring return with "OF" detent (only possible with symbols A, C and D)
This version is a directional valve with two spool positions and two electronic solenoids with detent. The detents are used to lock the control spool (3) in the relevant spool position. During operation, continuous application of current to the electronic solenoid can thus be omitted which contributes to energy-efficient operation.
Notices:
Pressure peaks in the tank line to two or several valves can result in unintended movements of the control spool in the version with detent. We therefore recommend that separate return lines be provided or a check valve installed in the tank line.
Due to the design principle, internal leakage is inherent to the valves, which may increase over the life cycle.
Type 4WE 6 E6X/...E..XNK4...
Throttle insert "...B"
The use of a throttle insert is required when, due to prevailing operating conditions, flows occur during the switching processes, which exceed the performance limit of the valve.
| 1) | Seal ring |
(measured with HLP46, ϑOil = 40 ±5 °C)
Δp-qV characteristic curves
|
Symbol |
Direction of flow |
|||||
|
P – A |
P – B |
A – T |
B – T |
B – A |
P – T |
|
|
A, B |
3 |
3 |
– |
– |
– |
– |
|
C46, C |
1 |
1 |
3 |
1 |
– |
– |
|
D46, D, Y |
5 |
5 |
3 |
3 |
– |
– |
|
E |
3 |
3 |
1 |
1 |
– |
– |
|
F |
1 |
3 |
1 |
1 |
– |
– |
|
T |
10 |
10 |
9 |
9 |
– |
8 |
|
H |
2 |
4 |
2 |
2 |
– |
9 |
|
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 |
– |
7 |
– |
|
V |
1 |
2 |
1 |
1 |
– |
– |
|
W |
1 |
1 |
2 |
2 |
– |
– |
|
U |
3 |
3 |
9 |
4 |
– |
– |
|
G |
6 |
6 |
9 |
9 |
– |
8 |
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
Notice:
The specified performance limits are valid for operation 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 valves, the possible performance limit may be considerably lower with only one direction of flow (e.g. from P to A while port B is blocked).
The performance limits were determined when the solenoids were at operating temperature, at 10% undervoltage and without tank preloading.
|
Symbol |
Characteristic curve |
|
A, B |
1 |
|
J, L, U |
2 |
|
V |
3 |
|
D, C, Y |
4 |
|
Q, W |
5 |
|
A/0, A/0F |
6 |
|
F, P |
7 |
|
T |
8 |
|
G |
9 |
|
H |
10 |
|
D/0F, C/0F |
11 |
|
M, D/0, C/0 |
12 |
|
E1, R, E |
13 |
| 1) |
Example: Symbol E with spool position "a" ordering code ..EA.. |
| 2) | Symbol E1-: P – A/B pre-opening, Caution in conjunction with differential cylinders due to pressure intensification. |
Notice:
Representation according to DIN ISO 1219-1.
Hydraulic interim positions are shown by dashes.
The type-examination tested valve solenoid of the valve is equipped with an electrical connection according to the following table. The electrical connection of the solenoid is polarity-independent.
Electrical connections and coil connection combinations
|
Ordering code connector |
Top view |
Circuit diagram |
Pin |
Connections, assignment |
|
|
3-pole connector (2+PE) according to DIN EN 175301-803 |
K4 |
|
|
1 |
Solenoid coil, polarity-independent |
|
2 |
|||||
|
Earthing |
||||
| 1) | M3, max. tightening torque MA max = 1 Nm |
Over-current fuse and switch-off voltage peaks
|
Voltage data in the valve type code |
Nominal voltage valve solenoid |
Rated current valve solenoid |
Recommended pre-fuse characteristics medium time-lag according to DIN EN 60127-1 |
|
G24 |
24 V DC |
0.95 A DC |
1 A |
Notice:
A fuse which corresponds to the rated current according to DIN 41571 and EN / IEC 60127 has to be connected upstream of every valve solenoid (max. 3 x Irated).
The shut-off threshold of the fuse has to match the prospective short-circuit current of the supply source.
The prospective short-circuit current of the supply source may amount to a maximum of 1500 A.
This fuse may only be installed outside the potentially explosive atmosphere or must be of an explosion-proof design.
When inductivities are switched off, voltage peaks result which may cause faults in the connected control electronics.
The voltage peak must be damped by a suitable external circuitry. We recommend a circuitry with a suppressor diode with a limitation voltage of approx. 50 V.
Dimensions in mm
|
|
Required surface quality of the valve contact surface |
|
1 |
Name plate |
|
2 |
Identical seal rings for ports A, B, P, T |
|
3 |
Plug screw for valve with one solenoid |
|
4 |
Mounting nut with double edge, wrench size 32 |
|
5 |
Plug-in connector according to EN 175301-803, design A (Cable sets, separate order, see "Accessories") |
|
6 |
Porting pattern according to ISO 4401-03-02-0-05 |
|
7 |
Name plate sticker |
|
8 |
Mating connector or cable set DS2513 for valves with connector "K4" (separate order, see "Accessories") |
|
9 |
Space required to remove the cable set |
|
10 |
Space required to remove the coil |
Valve mounting screws (separate order)
|
Size |
Quantity |
Hexagon socket head cap screws |
Material number |
|
6 |
4 |
ISO 4762 - M5 x 50 - 10.9 (Friction coefficient μtotal = 0.09 … 0.14) |
R913043758 |
|
Notice: For reasons of stability, exclusively these valve mounting screws are to be used. |
|||
Subplates (separate order) with porting pattern according to ISO 4401-03-02-0-05, see data sheet 45100.
Notices:
Subplates are no components in the sense of directive 2014/34/EU and can be used after the manufacturer of the overall system has conducted an assessment of the risk of ignition. The "G...J3" versions are free from aluminum and/or magnesium and galvanized. The dimensions are nominal dimensions which are subject to tolerances.Installation conditions
(Dimensions in mm)
|
Individual assembly |
Bank assembly |
|
|
Subplate dimensions |
Minimum dimensions: |
Minimum cross-section: |
|
Thermal conductivity of the subplate (EN-GJS-500-7) |
≥ 38 W/mK |
|
|
Minimum distance between the longitudinal valve axes |
≥ 55 |
|
Notice:
With respect to the hydraulic fluid temperature, please observe the “Special conditions for safe use” in chapter "Technical data".
Mating connectors for valves with connector “K4”, without circuitry, standard, with assembled connection line (ATEX)
DS2513...ATEX
Mating connectors for valves with connector “K4”, without circuitry, standard, with assembled connection line (ATEX)
DS2513...ATEX
For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)Data sheet
Spare parts & repair
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