BOSCH REXROTH
R900954055
- BOSCH REXROTH
- Material:R900954055
- Model:4WRA6EA30-2X/G24K4/V
Due to extremely high demand, please call 877-366-7226 for availability
The Bosch Rexroth 4WRA6EA30-2X/G24K4/V (R900954055) is a direct operated proportional directional valve tailored for high-performance industrial hydraulic applications. It features a spool valve with EA symbol for reliable control of oil flow direction and is designed for subplate mounting with a porting pattern according to ISO standards. This valve is size 6 and belongs to component series X, which can handle a maximum operating pressure of 350 bar and a maximum flow rate of 30 l/min. The model operates by means of proportional solenoids with central threads and detachable coils, controlled by external electronics. The electrical connection complies with Connector pole PE according to EN standards, ensuring secure and reliable connectivity. The unit has two switching positions and requires a supply voltage of 24 VDC. The valve is engineered with FKM seals, making it compatible with various hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. Its construction includes the housing with connection surface, control spool balanced by compression springs on either side, and solenoids for actuation. In operation, the deenergized solenoids maintain the control spool in a central position due to the springs' action. Upon energizing a solenoid proportionally to the electric input signal, the spool moves accordingly allowing precise control over the connection from P to A and B to T through orifice-type cross-sections that exhibit progressive flow characteristics. It's important to note that this model does not include electrical position feedback but relies on external electronics for operation control. Additionally, users must ensure that the tank line is not allowed to run empty; installation of a preload valve may be necessary under certain conditions.
Size 6, symbol EA, electrical with external electronics, 24 V DC
Industrial hydraulic valve in a high performance range, reliable control of oil flow direction according to hydraulic symbol.
Unpacked Weight: 1.461 kg
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.
| Direct actuated |
| Spool valve |
| Size 6, 10 |
| Maximum flow 75 l/min |
| Maximum operating pressure 315 bar |
| Component series 2X |
| Data Sheet | Download Data Sheet |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Spool symbol | Symbol EA |
| Max. pressure | 315 |
| Electrical connection description | Connector 3-pole (2 + PE) according to EN 175301-803 |
| Productgroup ID | 9,10,11,12,13,14 |
| Number of ports | 4 |
| Type of actuation | Electrical with external electronics |
| Size | 6 |
| Electrical connector | Connector 3-pole (2 + PE) |
| Max. flow | 42 |
| Type of connection | Subplate mounting |
| Connection diagram NFPA | NFPA T3.5.1 R2-2002 D03 |
| Size_CETOP | D03 |
| Nominal flow | 26 |
| Connection diagram | ISO 4401-03-02-0-05 |
| Supply voltage | 24 VDC |
| Number of switching positions | 2 |
| Weight | 1.461 |
| Seals | FKM |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HETG,HEES,HEPG,HFDU,HFDR |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
|||
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4 |
WRA |
‒ |
2X |
/ |
G24 |
/ |
* |
|
01 |
4 main ports |
4 |
|
02 |
Proportional directional valve without integrated electronics |
WRA |
|
Size |
||
|
03 |
Size 6 |
6 |
|
Size 10 |
10 |
|
|
04 |
Symbols; for the possible version, see "Symbols/Circuit diagrams" |
E;E1-;W;W1-;EA;WA |
|
Rated flow NG6 |
||
|
05 |
7 l/min |
7 |
|
15 l/min |
15 |
|
|
30 l/min |
30 |
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Rated flow NG10 |
||
|
05 |
30 l/min |
30 |
|
60 l/min |
60 |
|
|
06 |
Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) |
2X |
|
07 |
Supply voltage 24 V |
G24 |
|
Special type of protection |
||
|
08 |
Without special type of protection |
no code |
|
Sea water-resistant |
J 1) |
|
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Electrical connection |
||
|
09 |
Connector DIN EN 175301-803 |
K4 2) |
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Seal material |
||
|
10 |
NBR seals |
M |
|
FKM seals |
V |
|
|
11 |
Further details in the plain text |
* |
|
1) |
Electrical protection classes on request |
|
|
2) |
Only with NG6: only indicate "K31" for version “J”! |
|
For applications outside these parameters, please consult us!
general
|
Type |
4WRA | ||
|
Size |
6 | 10 | |
|
Installation position |
any, preferably horizontal | ||
|
Ambient temperature range |
°C |
-20 … +70 | |
|
Storage temperature range |
°C |
-20 … +80 | |
|
Weight |
kg |
2 | 6.6 |
hydraulic
|
Size |
6 | 10 | ||
|
Maximum operating pressure |
bar |
315 | ||
|
Maximum operating pressure |
Port P |
bar |
315 | |
|
Port T |
bar |
210 | ||
|
Port A |
bar |
315 | ||
|
Port B |
bar |
315 | ||
|
Maximum flow |
l/min |
42 | 75 | |
|
with double flow |
l/min |
80 | 140 | |
|
Nominal flow |
l/min |
7 15 26 |
30 60 |
|
|
Hydraulic fluid 1) |
see table | |||
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | ||
|
preferably |
°C |
+40 … +50 | ||
|
Viscosity range |
mm²/s |
20 … 380 | ||
|
preferably |
mm²/s |
30 … 46 | ||
|
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) |
Class 20/18/15 according to ISO 4406 (c) | |||
|
Hysteresis |
% |
≤ 5 | ||
|
Range of inversion |
% |
≤ 1 | ||
|
Response sensitivity |
% |
≤ 0.5 | ||
| 1) | Additional hydraulic fluids upon request |
| 2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
Mineral oils and related hydrocarbons |
HL, HLP |
NBR / FKM |
DIN 51524 |
|
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. |
|||
electrical
|
Size |
6 | 10 | ||
|
Voltage type |
Direct voltage | |||
|
Maximum solenoid current |
A |
2.5 | ||
|
Maximum current consumption |
of the amplifier |
A |
1.8 | |
|
of the amplifier (impulse current) |
A |
3 | ||
|
Solenoid coil resistance |
Cold value at 20 °C |
Ω |
2 | |
|
Maximum hot value |
Ω |
3 | ||
|
Actuated time |
% |
100 | ||
|
Maximum coil temperature 1) |
°C |
+ 150 | ||
|
Power supply |
VDC |
24 | ||
|
Supply voltage range |
V |
21 … 35 | ||
| 1) | Due to the surface temperatures occurring at the solenoid coils, the European standards ISO 13732-1 and EN 982 need to be adhered to. |
(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