4WRA6EB30-2X/G24K4/V
Manufacturer: Bosch Rexroth
Material #: R900947693
Model : 4WRA6EB30-2X/G24K4/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 4WRA6EB30-2X/G24K4/V (R900947693) is a cutting-edge proportional directional valve engineered for precision control of hydraulic flow and direction. This direct operated device is designed for plate mounting and operates via proportional solenoids with a central thread and a detachable coil, which are manipulated by external control electronics. The valve's housing incorporates a connection surface, while the control spool is balanced by compression springs, allowing for direct operation once the solenoids are energized.
The valve's functionality enables smooth transition from one position to another, with the deenergized solenoids ensuring that the control spool remains in a central position due to the compression springs. Energizing a proportional solenoid results in the displacement of the control spool proportionally to the electric input signal, facilitating connections from P to A and B to T through orifice-type cross-sections with progressive flow characteristics. The spool returns to its central position when the solenoid is switched off thanks to the action of the compression spring.
This specific model, type WRA...A..., differs slightly in that it features only one solenoid (solenoid a), with either a plug screw or cover taking place of a second proportional solenoid, depending on whether it's NG6 or NG10 respectively. It's essential to ensure that the tank line does not run dry and if necessary, install a preload valve with approximately 5 bar preload pressure under certain installation conditions.
The Bosch Rexroth 4WRA6EB30-2X/G24K4/V valve boasts impressive specifications including an operational pressure up to 315 bar and maximum flow rates reaching up to 80 l/min. It is suitable for subplate mounting and adheres to ISO porting patterns. With its spring-centered control spool, this size 6 component from series X offers reliable performance in controlling both direction and magnitude of fluid flow without electrical position feedback but requiring external electronic controls.
$1,235.00 USD
More are expected on September 26, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as September 26, 2024 when ordered in
This product is eligible for factory repair.
The 4/2 and 4/3 proportional directional valves are designed as direct operated devices in plate design. Operation by means of proportional solenoids with central thread and detachable coil. The solenoids are controlled by external control electronics.
Set-up:
The valve basically consists of:
Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) Solenoids (5 and 6) with central threadFunction:
With de-energized solenoids (5 and 6), central position of the control spool (2) by compression springs (3 and 4) Direct operation of the control spool (2) by energization a proportional solenoid, e.g. control of solenoid "b" (6) Displacement of the control spool (2) to the left, proportionally to the electric input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off the solenoid (6) The compression spring (3) brings the control spool (2) back into the central position
Valve with two spool positions (type 4WRA...A...):
The function of this valve version basically corresponds to the valve with three spool positions. This 2 spool position valve is, however, only equipped with solenoid “a”. Instead of the 2nd proportional solenoid, there is a plug screw (8.1) with NG 6 or a cover (8.2) with NG10.
Notice:
The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) must be installed.
(measured with HLP46, ϑÖl = 40 ±5 °C)
Rated flow 7 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 15 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 30 l/min at a valve pressure differential of 10 bar
NG6
Rated flow 30 l/min at a valve pressure differential of 10 bar
NG10
Transition function with stepped electric input signals
NG6
Performance limit rated flow 7 l/min
NG6
Performance limit rated flow 15 l/min
NG6
Performance limit rated flow 30 l/min
NG6
Rated flow 60 l/min at a valve pressure differential of 10 bar
NG10
Transition function with stepped electric input signals
NG10
Performance limit rated flow 30 l/min
NG10
Performance limit rated flow 60 l/min
NG10
Symbols
|
With control spool symbol E1- and W1-, the following applies: |
|
|
P → A: qvmax |
B → T: qv/2 |
|
P → B: qv/2 |
A → T: qvmax |
|
Notice: |
|
Type 4WRA
Type 4WRA...EA;Type 4WRA...WA
Connection at connector
Connection at mating connector
4WRA 6
Dimensions in mm
|
1 |
Valve housing |
|
2 |
Proportional solenoid "a" |
|
3 |
Proportional solenoid "b" |
|
4.1 |
Mating connector "A", color gray, separate order |
|
4.2 |
Mating connector "B", color black, separate order |
|
5 |
Name plate |
|
6 |
Identical seal rings for ports A, B, P, and T |
|
7 |
Plug screw for valves with one solenoid (2 spool positions, version "EA" or "WA") |
|
8 |
Space required to remove the mating connector |
|
9 |
Machined valve contact surface; Porting pattern according to ISO 4401-03-02-0-05 (with locating hole) |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
tightening torque MA = 7 Nm ± 10%, material no. R913000064 or
4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9
tightening torque MA = 8.9 Nm ± 10%
4WRA 10
Dimensions in mm
|
1 |
Valve housing |
|
2 |
Proportional solenoid "a" |
|
3 |
Proportional solenoid "b" |
|
4.1 |
Mating connector "A", color gray, separate order |
|
4.2 |
Mating connector "B", color black, separate order |
|
5 |
Name plate |
|
6 |
Valve bleed screw: Notice: Valves are bled prior to delivery |
|
7 |
Identical seal rings for ports A, B, P and T (T1) |
|
8 |
Cover for valves with one solenoid (2 spool positions, version "EA" or "WA") |
|
9 |
Space required to remove the mating connector |
|
10 |
Machined valve contact surface; Porting pattern according to ISO 4401-05-04-0-05 |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M6 x 40 - 10.9-flZn-240h-L
tightening torque MA = 12.5 Nm ± 10 %, material no. R913000058 or
4 hexagon socket head cap screws ISO 4762 - M6 x 40 - 10.9
tightening torque MA = 15.5 Nm ± 10%
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
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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