4WE6D5X/BG12-12NXHZ2/V
Manufacturer: Bosch Rexroth
Material #: R901344110
Model : 4WE6D5X/BG12-12NXHZ2/V
***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 4WE6D5X/BG12-12NXHZ2/V (R901344110) is a high-performance directional spool valve designed to control the start, stop, and direction of fluid flow in hydraulic systems. This model is a direct operated directional spool valve with solenoid actuation, featuring two solenoids and two spool positions. The valve operates without a detent, meaning in its deenergized state it does not have a defined spool position.
The 4WE6D5X/BG12-12NXHZ2/V is constructed with a housing, control spool, wet-pin solenoids, and return springs. The wet-pin solenoids ensure reliable actuation of the control spool by pushing it from its rest position to the required end position for controlling fluid direction from ports P-A and B-T or P-B and A-T. Upon deexcitation of the solenoid, return springs restore the control spool to its original position. Additionally, this valve features a manual override for movement of the control spool without energizing the solenoids.
This particular model is suitable for use in potentially explosive atmospheres and complies with Explosion Protection Directive EU standards: IM; IIG. It offers type protection ExibIIMb & ExibIICTGb according to EN standards. The maximum operating pressure for this component is up to bar while it can handle a maximum flow rate of l/min.
For optimal functioning under certain operating conditions where flows during switching exceed the performance limit of the valve, the use of a throttle insert in channel P is required. The design also includes provisions for various electrical connections including individual connection with cable gland or connector options along with manual override capability.
Overall, Bosch Rexroth's 4WE6D5X/BG12-12NXHZ2/V valve is engineered for precise fluid flow management in hydraulic systems requiring robust performance in challenging environments.
$4,450.00 USD
More are expected on November 25, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as November 25, 2024 when ordered in
This product is eligible for factory repair.
Directional valves of type WE are solenoid-actuated directional spool valves. They control the start, stop and direction of a fluid flow.
The directional valves basically consist of the 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 central position or in the initial position by the return springs (4) (except for impulse spools). The control spool (3) is actuated by wet-pin
solenoids (2).
To ensure proper functioning, make sure that the pressure chamber of the solenoid is filled with oil.
The force of the 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 → A and B → T or P → B and
A → T.
After de-excitation of the solenoid (2), the return spring (4) pushes the control spool (3) back to its rest position.
A manual override (6) allows control spool (3) to be moved without solenoid energization.
Type 4WE 6.. 5X/O...X (only possible with symbols A, C and D)
This version is a directional valve with two spool positions and two solenoids without detent. In the de-energized condition, there is no defined spool position.
Notice:
The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) is to be installed.
Throttle insert (valve type 4WE 6..5X/…X.../B.. )
The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve.
It is inserted in channel P of the directional valve.
Example: Type 4WE 6 E5X/.B.X.K20L/..
(measured with HLP46, ϑOil = 40 °C ± 5 °C and p = 100 bar)
Δp-qV characteristic curves
|
Symbols |
Direction of flow |
|||
|
P–A |
P–B |
A–T |
B–T |
|
|
A,B |
3 |
3 |
‒ |
‒ |
|
C |
6 |
6 |
6 |
6 |
|
D,Y |
1 |
1 |
4 |
4 |
|
E |
3 |
3 |
7 |
7 |
|
H |
8 |
8 |
7 |
7 |
|
J |
3 |
3 |
7 |
7 |
|
L |
3 |
3 |
7 |
5 |
|
M |
8 |
8 |
4 |
5 |
|
U |
3 |
3 |
5 |
7 |
|
B1 |
2 |
2 |
‒ |
‒ |
|
X7 |
3 |
‒ |
‒ |
3 |
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
Notice:
The specified performance limits are valid for use with two directions of flow (e. g. from P → A and simultaneous return flow from B → T).
Due to the flow forces acting within the valves, the admissible performance limit may be considerably lower with only one direction of flow (e. g. from P → A while port B is blocked)!
In such use cases, please consult us!
The performance limits were determined when the solenoids were at operating temperature, at 10 % undervoltage and without tank preloading.
|
DC solenoid |
|
|
Characteristic curve |
Symbol |
|
1 |
D, Y, A, B, C, E, H, J, L, M, U |
|
2 |
X7 |
|
3 |
B1 |
| 2) Example: Control spool symbol E with spool position "a" → ordering code ..EA.. |
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 solenoids is polarity-independent.
|
Ordering code for the electrical connection |
Type of connection Description |
Circuit diagram |
Ordering code for the solenoid, availability |
|
CKL |
Electrical connection via non-exchangeable, two-core connection line, blue Operating display via light emitting diode (LED), red |
|
G12–13 (130 mA) G12–19 (190 mA) |
|
Connection line, two-core |
|||
|
Line cross-section |
0.75 mm2 finely stranded |
||
|
Line diameter |
approx. 5.6 mm |
||
|
Length |
2 m |
||
|
Z2 |
Electrical connection via 2-pole terminal in terminal box with cable gland without operating display |
|
G12–12 (120 mA) |
|
Cable gland |
|||
|
Threaded connection |
M20x1,5 |
||
|
Line diameter |
6,5 ... 9,5 mm1) |
||
|
Sealing |
Outer sheath sealing |
||
|
Connection terminal solenoid |
|||
|
For line cross-section |
0,75 ... 1,5 mm2 |
||
|
K20L |
Electrical connection via connector, 3-pole with pin contacts, type 845-11-1125-001, FCI/Souriau Operating display via light emitting diode (LED), red Suitable mating connector, type 845-11-8522-001, FCI/Souriau, must be ordered separately. |
|
G12–19 (190 mA) |
1) Larger diameters upon request
Type WE 6../.B.X.K20L/...
Dimensions in mm
|
7 |
red LED for displaying the operating state, or plug screw |
|
1 |
Name plate |
|
2 |
Same seal rings for ports A, B, P, T |
|
3 |
Cover for valves with one solenoid |
|
4 |
Valve solenoid |
|
5 |
Porting pattern according to ISO 4401-03-02-0-05 |
|
6 |
Receiving hole for locating pin according to ISO 4401-03-02-0-05, (locating pin must be ordered separately, mat. no. R900005694) |
|
7 |
red LED for displaying the operating state, or plug screw |
Valve mounting screws
For reasons of stability, exclusively the following valve mounting screws are to be used:
4 hexagon socket head cap screws
ISO 4762-M5x50-10.9-flZn-240h-L
(friction coefficient 0.09 - 0.14 according to VDA 235-101)
Mat. no. R913000064
(must be ordered separately)
Subplates
(without locating hole)
G 341/01 FE/ZN (G1/4)
G 342/01 FE/ZN (G3/8)
G 502/01 FE/ZN (G1/2)
(with locating hole)
G 341/60 FE/ZN (G1/4)
G 342/60 FE/ZN (G3/8)
G 502/60 FE/ZN (G1/2)
with dimensions as in the data sheet 45052
(must be ordered separately)
Notice:
Subplates are no components in the sense of directive 94/9/EC and can be used after an assessment of the risk of ignition by the manufacturer of the overall system.
The G...FE/ZN versions are free from aluminum and/or free from magnesium and galvanized.
Type WE 6../.B.X.CKL/...
(readily assembled with 2 x 2 m connection line)
Dimensions in mm
|
7 |
red LED for displaying the operating state, or plug screw |
|
1 |
Name plate |
|
2 |
Same seal rings for ports A, B, P, T |
|
3 |
Cover for valves with one solenoid |
|
4 |
Valve solenoid |
|
5 |
Porting pattern according to ISO 4401-03-02-0-05 |
|
6 |
Receiving hole for locating pin according to ISO 4401-03-02-0-05, (locating pin must be ordered separately, mat. no. R900005694) |
|
7 |
red LED for displaying the operating state, or plug screw |
Type WE 6../.B.X.Z2/...
(with terminal box and cable gland)
Dimensions in mm
|
7 |
red LED for displaying the operating state, or plug screw |
Installation conditions
Dimensions in mm
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