BOSCH REXROTH
R901108990

$442.51 USD

BOSCH REXROTH
Material:R901108990
Model:4WE6J7X/HG24N9K4/B10

Quantity in stock: 0

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***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 4WE6J7X/HG24N9K4/B10 (R901108990) is a high-performance directional spool valve designed for controlling the start, stop, and direction of fluid flow within a hydraulic system. This model features wet-pin DC solenoids that actuate the control spool, allowing for precise operation. The solenoids generate force that moves the control spool from its rest position to an activated state, enabling the desired flow direction as indicated by the valve's symbol. Constructed with a durable housing, it incorporates one or two solenoids depending on the configuration, a control spool, and return springs. When not energized, these return springs hold the control spool in its central or initial position. The inclusion of a manual override offers flexibility by permitting manual operation of the control spool without requiring solenoid activation. The 4WE6J7X/HG24N9K4/B10 valve is engineered to maintain efficient functionality; it is crucial that the pressure chamber for the solenoid is filled with oil to ensure optimal performance. Additionally, this model allows for easy maintenance as the solenoid coil can be rotated and replaced without opening the pressure-tight chamber. For electrical connections, this valve features individual connections and boasts a concealed manual override feature. It adheres to porting patterns according to DIN form A standards. The size and component series X indicate compatibility with various hydraulic systems while supporting maximum operating pressures up to bar levels and accommodating maximum flow rates measured in liters per minute (l/min). This directional valve is an essential component for hydraulic applications requiring reliable and precise flow direction control within their operations.

Directional valves of type WE are solenoid-actuated directional spool valves. They control the start, stop and direction of a 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, control spool (3) is held in the central position or in the initial position by the return springs (4). 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. In this way, the required direction of flow according to the symbol is released. After de-excitation of the solenoid (2), the return spring (4) pushes the control spool (3) back to its rest position.

The manual override (6) allows control spool (3) to be moved without solenoid energization.

Type 4WE 6 E7X/H…

technical illustration-R901108990-4/3-, 4/2- or 3/2-way version Standard version Porting pattern according to DIN 24340, form A Wet-pin DC solenoids Solenoid coil can be rotated The coil can be changed without having to open the pressure-tight chamber Electrical connection as individual connection Concealed manual override

01	02	03	04	05		06	07	08	09	10		11	12
	WE	6		7X	/		H		N9		/		*

01	3 main ports	3
01	4 main ports	4
02	Directional valve	WE
03	Size 6	6
04	Symbols e. g. D, E etc.; possible design see Symbols
05	Component series 70 … 79 (70 … 79: unchanged installation and mounting dimensions)	7X
06	With spring return	no code
06	Without spring return with detent	OF1)
07	Standard solenoid wet (wet-pin)	H
08	Direct voltage 12 V	G12
08	Direct voltage 24 V	G24
09	With concealed manual override	N9
Electrical connection
10	Individual connection
	Without mating connector, with connector DIN EN 175301-803	K42)
	Without mating connector, with connector AMP Junior-Timer	C4Z 2)
Seal material
11	NBR seals	no code
11	Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
12	Further details in the plain text	*

	1) Only symbol D
	2) Mating connectors, separate order, see data sheet 08006.

Preferred types and standard units arecontained in the EPS (standard price list).

general

Size			6
Weight (approx.)	Valve with one solenoid	kg	1.25
Weight (approx.)	Valve with two solenoids	kg	1.6
Installation position			any
Ambient temperature range		°C	-30 … +50

hydraulic

Size			6
Maximum operating pressure	Port P	bar	315
	Port A	bar	315
	Port B	bar	315
	Port T 1)	bar	160
Maximum flow		l/min	60
Hydraulic fluid			see table
Hydraulic fluid temperature range		°C	-30 … +80
Viscosity range		mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid 2)			Class 20/18/15 according to ISO 4406 (c)

1)	With symbols A and B, port T must be used as leakage oil connection if the operating pressure exceeds the admissible tank pressure.
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		HL, HLP, HLPD, HVLP, HVLPD	NBR, FKM	DIN 51524
Bio-degradable	Insoluble in water	HETG	NBR, FKM	VDMA 24568
	Insoluble in water	HEES	FKM	VDMA 24568
	Soluble in water	HEPG	FKM	VDMA 24568
Containing water	Water-free	HFDU, HFDR	FKM	ISO 12922
Containing water	Containing water	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620 )	NBR, HNBR	ISO 12922
Important information on hydraulic fluids! For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature. Flame-resistant – containing water: Maximum pressure differential per control edge 50 bar. Pressure pre-loading at the tank port >20% of the pressure differential; otherwise, increased cavitation Life cycle compared to operation with mineral oil HL, HLP 50 to 100 % Bio-degradable: When using bio-degradable hydraulic fluids that are zinc-solving, zinc may accumulate in the fluid (700 mg zinc per pole tube)

Notices!

Only actuate the manual override using a rounded tool (Ø3+1 mm) or special tool (separate order, material no. R900024943)! Actuation of the manual override only up to a tank pressure 50 bar. When the manual override is blocked, the actuation of the solenoid must be prevented! The simultaneous actuation of the solenoids must be prevented!

In the electrical connection, the protective earthing conductor (PE, grounded) is to be connected in accordance with the stipulations.

electrical

Voltage type			Direct voltage
Available voltages		V	12 / 24
Voltage tolerance (nominal voltage)		%	± 10
Power consumption		W	26
Duty cycle		%	100
Maximum coil temperature 1)		°C	150
Switching time according to ISO 6403	ON	ms	20 … 45
Switching time according to ISO 6403	OFF	ms	10 … 25
Maximum switching frequency		1/h	15000
Protection class according to DIN EN 60529			IP65 (with mating connector mounted and locked)
Insulation class VDE 0580			F

1)	Due to the high surface temperatures of the solenoid coils >50 °C, the standards ISO  13732-1 and ISO 4413 must be adhered and the coils must be equipped with contact protection, if required.

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Δp-qV characteristic curves

7	Symbol "H" in central position P – T
8	Symbol "G" in central position P – T

Symbol	Direction of flow
Symbol	P-A	P-B	A-T	B-T
A, B	3	3	–	–
C	1	1	3	1
D, Y	4	4	3	3
E	3	3	1	1
J	1	1	2	1
G	6	6	7	7
H	2	5	2	2

Switching power 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 to A and simultaneous return flow from B to T).

Due to the flow forces acting within the valves, the admissible switching power limits may be considerably lower with only one direction of flow (e. g. from P to A while port B is blocked)!

In such use cases, please consult us!

The switching power limit was established while the solenoids were at operating temperature, at 10 % undervoltage and without tank preloading.

DC solenoid
Characteristic curve	Symbol
1	A, B
2	C, Y
3	E
4	J
5	D
6	G, H
7	D/OF

1)	Only symbol D

	2)Example: Symbol E with switching position "a" Ordering code ..EA..

Version "K4"

Dimensions in mm


Required surface quality of the valve contact surface

1.1	Solenoid “a”
1.2	Solenoid “b”
2	Mating connector without circuitry (separate order)
3	Mating connector with circuitry (separate order)
4	Name plate
5	Space required to remove the mating connector
6	Space required to remove the coil
7	Mounting nut, MA = 4+1 Nm
8	Plug screw for valve with one solenoid
9	Identical seal rings for ports A, B, P, and T
10	Porting pattern according to DIN 24340 form A

Version "C4Z"

Dimensions in mm


Required surface quality of the valve contact surface

1.1	Solenoid “a”
1.2	Solenoid “b”
4	Name plate
5	Space required to remove the mating connector
6	Space required to remove the coil
7	Mounting nut, MA = 4+1 Nm
8	Plug screw for valve with one solenoid
9	Identical seal rings for ports A, B, P, and T
10	Porting pattern according to DIN 24340 form A
11	Mating connector "Junior Timer", straight (separate order, see data sheet 08006)
12	Mating connector "Junior Timer", angled (separate order, see data sheet 08006)

Subplates according to data sheet 45052 (separate order)

G 341/01 (G1/4)

G 342/01 (G3/8)

G 502/01 (G1/2)

Valve mounting screws (separate order)

4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9-flZn-240h-L

(friction coefficient μtotal = 0.09 to 0.14);

tightening torque MA = 7 Nm ± 10 %,

material no. R913000064

4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9

with friction coefficient μtotal = 0.12 to 0.17 a

tightening torque MA = 8.1 Nm ± 10 % results

(not included in the Rexroth delivery range)

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

Mating connectors for valves with connector “K4”, with indicator light

3P Z5L