4WE6J5X/BG12-12NXHZ2/V
Manufacturer: Bosch Rexroth
Material #: R901348789
Model : 4WE6J5X/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 4WE6J5X/BG12-12NXHZ2/V (R901348789) is a high-performance directional spool valve designed for controlling the start, stop, and direction of fluid flow in hydraulic systems. This model features two solenoid actuators that move the control spool to direct the hydraulic fluid, with one or two return springs ensuring the spool returns to its rest position when de-energized. The wet-pin solenoids require an oil-filled pressure chamber for optimal functionality.
This particular valve does not have a defined spool position when de-energized, indicating that it's a non-detent valve with two spool positions and two solenoids. It also includes a manual override for situations where solenoid actuation isn't possible or desired. The valve is designed for use in potentially explosive atmospheres and adheres to stringent safety standards with types of protection Ex ib I Mb and Ex ib II C T Gb according to EN and EN standards.
For installation conditions where there's a risk of the tank line running empty, it's recommended to install a preload valve with approximately bar preload pressure. Additionally, if operating conditions could lead to excessive flow during switching processes, it is necessary to use a throttle insert in channel P of the valve.
The 4WE6J5X/BG12-12NXHZ2/V has a maximum operating pressure of bar and can handle maximum flow rates of l/min. Its design allows for versatile porting patterns in accordance with ISO standards, ensuring compatibility with various subplates available in FEZN versions. Electrical connections can be made via individual connection with cable gland, m connection line, or connector options—all suited for safe operation in specified explosive environments as outlined by the EU Explosion Protection Directive.
$8,016.00 USD
More are expected on November 20, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as November 20, 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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