3WE6B9-6X/BG24NXDZ2/V
Manufacturer: Bosch Rexroth
Material #: R901166817
Model : 3WE6B9-6X/BG24NXDZ2/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 3WE6B9-6X/BG24NXDZ2/V (R901166817) is a direct operated directional spool valve designed for precise control of fluid flow in hydraulic systems. This model is equipped with two solenoids that, when energized, actuate the control spool to manage the start, stop, and direction of fluid flow. The solenoids operate in wet-pin conditions within the hydraulic fluid, ensuring smooth operation and reliable performance. The valve's construction includes a housing, control spool, one or two return springs, and the option for manual override.
The 3WE6B9-6X/BG24NXDZ2/V valve is characterized by its ability to alternate between two spool positions without detent in its deenergized state. This means that there is no defined spool position when the solenoids are not powered. It also features an impulse spool version with detent for locking the spool positions, reducing the need for continuous solenoid energization.
For proper functionality and safety, it's important to maintain a filled pressure chamber with hydraulic fluid and consider separate return lines or check valves to prevent unwanted movements due to pressure peaks. Additionally, if operating conditions may exceed performance limits during switching processes, a throttle insert can be used in channel P of the valve.
This particular model adheres to ISO standards for porting patterns and is suitable for use in potentially explosive atmospheres as designated by EU directives IM and IIG. It offers maximum operating pressures up to bar and can handle maximum flow rates of l/min. The solenoids' type of protection includes Ex db I Mb / Ex db II C T Gb according to EN standards. This makes it an ideal solution for applications requiring robust performance with stringent safety requirements in hazardous environments.
$8,566.00 USD
More are expected on February 14, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as February 14, 2025 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 in hydraulic fluid (2).
To ensure proper functioning, make sure that the pressure chamber of the solenoid is filled with hydraulic fluid.
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.
An optional manual override (6) allows control spool (3) to be moved without solenoid energization.
Type 4WE 6.. 6X/O...XD (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.
Type 4WE 6.. 6X/OF... XD (impulse spool, only possible with symbols A, C and D)
This version is a directional valve with two spool positions, two solenoids and one detent. It alternately locks the two spool positions and the solenoid therefore does not need to be permanently energized.
Notice:
Pressure peaks in the tank line to two or several valves can result in unwanted movements of the control spool in the case of valves with detent! We therefore recommend that separate return lines be provided or a check valve installed in the tank line.
The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar [30 psi]) is to be installed.
Throttle insert (type 4WE 6..6X/…XD../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.
Type 4WE 6 E6X/.B..NXDZ2/V
Performance limits
(measured with HLP46, ϑOil = 40 ±5 °C)
Notice
The specified switching power 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 switching power 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 switching power limits were established while the solenoids were at operating temperature, at 10 % undervoltage and without tank preloading.
Performance limits of the valves with DC solenoids
|
Characteristic curve |
Symbol |
|
1 |
A, B |
|
2 |
J, L, U |
|
3 |
V |
|
4 |
F, P |
|
5 |
A/O, A/OF |
|
6 |
G |
|
7 |
T |
|
8 |
R 2) |
|
9 |
E |
|
10 |
Q, W |
|
11 |
D, C, Y, Y2 |
|
12 |
H |
|
13 |
M |
|
14 |
E1 1), D/OF, C/OF, D/O, C/O |
|
15 |
B9 |
|
16 |
B9 SO9 |
|
17 |
H19 |
|
18 |
J19, P–A |
|
19 |
J,19 A–T |
|
20 |
J19, B–T |
|
21 |
X36A |
|
22 |
D9 |
|
23 |
E41 |
| 1) P–A/B pre-opening | |
| 2) Return flow from actuator to tank |
(measured with HLP46, ϑOil = 40 ±5 °C) and p = 100 bar)
Δp-qV characteristic curves
|
Characteristic curve selection |
||||||
|
Symbol |
Direction of flow |
|||||
|
P – A |
P – B |
A – T |
B – T |
B – A |
P – T |
|
|
A, B |
3 |
3 |
– |
– |
– |
– |
|
C |
1 |
1 |
3 |
1 |
– |
– |
|
D, Y, Y2 |
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 |
|
B9 |
11 |
11 |
– |
– |
– |
– |
|
B9 SO9 |
12 |
11 |
– |
– |
– |
– |
|
H19 |
14 |
14 |
13 |
13 |
15 |
– |
|
J19 |
14 |
– |
16 |
13 |
– |
– |
|
X36A |
17 |
– |
18 |
19 |
– |
– |
|
D9 |
8 |
20 |
8 |
15 |
– |
– |
|
E41 |
20 |
20 |
8 |
8 |
– |
– |
Δp-qV characteristic curves
| 1) | Example: Control spool 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! |
The type-examination tested valve solenoid of the valve is equipped with a terminal box and a type-tested cable entry.
The connection is polarity-independent.
Notice
When establishing the electrical connection, the protective earthing conductor (PE) has to be connected properly.
|
Properties of the connection terminals and mounting elements |
||
|
Position |
Function |
Connectable line cross-section |
|
1 |
Operating voltage connection |
Single-wire 2.5 mm2 max. Finely stranded, max. 2.5 mm2 |
|
2 |
Connection for protective earthing conductor |
Single-wire 0.75 … 2.5 mm2 Finely stranded,0.75 … 1.5 mm2 |
|
3 |
Connection for potential equalization conductor |
Single-wired, 4 … 6 mm2 Finely stranded, min. 4 mm2 |
|
4 |
Screws for cover |
– |
|
Cable gland |
Line diameter |
mm |
9 ... 12 |
|
Sealing |
Outer sheath sealing | ||
|
Connection line |
Line type |
Non-armored cables and lines (outer sheath sealing) | |
|
Temperature range |
°C |
-20 … +110 |
Circuit diagrams
Direct voltage, polarity-independent
Over-current fuse and switch-off voltage peak
Notice
A fuse appropriate for the solenoid's rated current (max. 3 x Irated according to DIN 41571 and/or IEC 60127) or a protective motor switch with short-circuit protection and thermal instantaneous tripping must be connected upstream of each valve solenoid as short-circuit protection. The shut-off threshold of this fuse must match or exceed the short-circuit current of the supply source.
This fuse or protective motor switch may only be fitted outside the potentially explosive area 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. For this reason, the valve solenoids comprise an interference protection circuit which dampens this voltage peak to the voltage value shown in the table.
|
Voltage data in the valve type code |
Nominal voltage valve solenoid |
Rated current valve solenoid |
Recommended pre-fuse characteristic: medium time-lag according to DIN 41571 |
Maximum voltage value when switching off |
Interference protection circuit |
|
G24 |
24 V DC |
0,542 A DC |
630 mA |
–90 V |
Suppressor diode bi-directional |
|
G110 |
110 V DC |
0,118 A DC |
125 mA |
–390 V |
Valve with manual override "N"
Dimensions in mm
|
1 |
Solenoid |
|
2 |
Terminal box |
|
3 |
Manual override "N" |
|
4 |
Identical seal rings for ports P, A, B, T |
|
5 |
Plug screw for valves with one solenoid |
|
6 |
Name plate |
|
7 |
Receiving hole for locating pin according to ISO 4401-03-02-0-05, locating pin mat. no. R900005694 (has to be ordered separately) |
|
8 |
Porting pattern according to ISO 4401-03-02-0-05 |
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)
Material 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:
In case of bank assembly, only one solenoid of all valves may be energized at a time.
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.
Installation conditions
Schematic diagram
Dimensions in mm
Notice:
In case of bank assembly, only one solenoid of all valves may be energized at a time.
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.
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