4WRE10EA75-2X/G24K4/V

Manufacturer: Bosch Rexroth

Material #: R900969351

Model : 4WRE10EA75-2X/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 4WRE10EA75-2X/G24K4/V (R900969351) is a high-performance direct operated proportional directional valve with electrical position feedback, suitable for subplate mounting and adhering to ISO porting patterns. The valve is engineered for precise control of flow direction and size, utilizing proportional solenoids with a central thread and detachable coil. The setup includes a robust housing, a control spool balanced by compression springs and spring plates, and solenoids that are controlled by external electronics. Functionally, the valve maintains the control spool in a central position with deenergized solenoids due to the force of the compression springs. Upon energizing one of the solenoids, the control spool shifts proportionally to the electrical input signal, allowing fluid connection from P to A and B to T through orifice-type cross-sections that offer progressive flow characteristics. When deactivated, the solenoid allows for the control spool to return to its central position via the compression springs. This particular model is equipped with two spool positions (Type WREA...), featuring only one solenoid and a plug screw in place of a second solenoid. It is important to note that internal leakage may occur over time due to its design principle. Also, it is crucial not to let the tank line run dry; if necessary, a preload valve with approximately 5 bar pressure should be installed under certain conditions. The Bosch Rexroth 4WRE10EA75-2X/G24K4/V valve is capable of handling maximum operating pressures up to 315 bar and maximum flow rates up to 75 l/min. Its spring-centered control spool ensures reliable operation across various hydraulic applications where precision and durability are paramount.

$2,132.00 USD

Availability: 3 In Stock

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Qty: Delivered as early as November 14, 2024 when ordered in

This product is eligible for factory repair.

Repairs from $457.00

Direct operated proportional directional valve with electrical position feedback and external electronics Control of flow direction and size Operation by means of proportional solenoids with central thread and detachable coil For subplate mounting: Porting pattern according to ISO 4401 Spring-centered control spool

Type 4WRE...-2X/...

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 electronics.

Set-up:

The valve basically consists of:

Housing (1) with connection surface Control spool (2) with compression springs (3 and 4) and spring plates (5 and 6) Solenoids (7 and 8) with central thread Position transducer (9)

Function:

With de-energized solenoids (7 and 8), central position of the control spool (2) due to compression springs (3 and 4) between the spring plates (5 and 6) Direct actuation of the control spool (2) by the control of one proportional solenoid, e. g. solenoid "b" (8) Control spool (2) is moved to the left in proportion to the electrical input signal Connection from P to A and B to T via orifice-type cross-sections with progressive flow characteristics Switching off of the solenoid (8) Control spool (2) is returned to the central position by the compression spring (3)

In the de-energized state, the control spool (2) is held in a mechanical central position by the return spring of the solenoids. With control spool symbol "V", this position does not correspond to the hydraulic central position! When the electric valve control loop is closed, the control spool is positioned in the hydraulic central position.

Important notice:

The PG fitting (11) must not be opened. Mechanical adjustment of the adjustment nut located below is prohibited and damages the valve!

Valve with two spool positions: (Type 4WRE…A...)

The function of this valve version basically corresponds to the valve with three spool positions. The 2 spool position valve is, however, only equipped with solenoid “a” (7). Instead of the 2nd proportional solenoid, a plug screw (10) is installed.

Notice:

Due to the design principle, internal leakage which may increase over the life cycle is inherent to the valves.

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.

01	02	03	04	05		06		07	08		09	10
4	WRE				‒	2X	/	G24	K4	/		*

01	4 main ports	4
02	Proportional directional valve with electrical position feedback	WRE
03	Size 6	6
03	Size 10	10
04	Symbols; for the possible version, see "Symbols/Circuit diagrams"	E; E1-; V; V1-; W; W1-; EA; WA
Rated flow NG6
05	4 l/min	4
	8 l/min	8
	16 l/min	16
	32 l/min	32
Rated flow NG10
05	25 l/min	25
	50 l/min	50
	75 l/min	75
06	Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions)	2X
07	Supply voltage 24 V	G24
Electrical connection
08	Connector DIN EN 175301-803	K4
Seal material
09	NBR seals	M
09	FKM seals	V
10	Further details in the plain text	*

For applications outside these parameters, please consult us!

general

Type		4WRE
Size		6
Installation position		any, preferably horizontal
Ambient temperature range	°C	-20 … +70
Storage temperature range	°C	-20 … +80
Weight	kg	2.2
MTTFD values according to EN ISO 13849 1)	y	150

1)	With control spool types E, E1, EA, W, W1, WA; in longitudinal control spool direction, there is sufficient positive overlap without shock/vibration load; observe the installation orientation with regard to the main direction of acceleration.

hydraulic

Size			6
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	80
Nominal flow		l/min	4 8 16 32
Hydraulic fluid			see table below
Hydraulic fluid temperature range		°C	-20 … +80
Hydraulic fluid temperature range	preferably	°C	+40 … +50
Viscosity range		mm²/s	20 … 380
Viscosity range	preferably	mm²/s	30 … 46
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)			Class 20/18/15 according to ISO 4406 (c)
Hysteresis		%	≤ 0.1
Range of inversion		%	≤ 0.05
Response sensitivity		%	≤ 0.05
Zero shift upon change of	Hydraulic fluid temperature	%/10 K	≤ 0.15
Zero shift upon change of	Operating pressure	%/100 bar	≤ 0.1

1)	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
Flame-resistant - containing water	HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620)	NBR	ISO 12922
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature. Flame-resistant - containing water: Maximum pressure differential per control edge 175 bar Pressure pre-loading at the tank port > 20 % of the pressure differential, otherwise increased cavitation Life cycle as compared to operation with mineral oil HL, HLP 50 % to 100 %

electrical

Size			6
Voltage type			Direct voltage
Maximum current consumption	of the amplifier	A	2
Maximum current consumption	of the amplifier (impulse current)	A	3
Solenoid coil resistance	Cold value at 20 °C	Ω	2.65
Solenoid coil resistance	Maximum hot value	Ω	4.05
Actuated time		%	100
Maximum coil temperature 1)		°C	150
Protection class according to DIN EN 60529			IP65 (with mating connector mounted and locked)
Power supply		V	24
Supply voltage range		V	19.4 … 35

1)	Due to the surface temperatures occurring at solenoid coils, the European standards ISO 13732-1 and ISO 4413 need to be adhered to.

(measured with HLP46, ϑÖl = 40 ±5 °C)

Zero flow with central control spool position “V32”

NG6

Rated flow 4 l/min at a valve pressure differential of 10 bar

NG6

Rated flow 8 l/min at a valve pressure differential of 10 bar

NG6

Rated flow 16 l/min at a valve pressure differential of 10 bar

NG6

Rated flow 32 l/min at a valve pressure differential of 10 bar

NG6

Load function with maximum valve opening;Rated flow 4, 8, 16 and 32 l/min;Control spool V

NG6

Symbols

With symbol E1-, V1- and W1-, the following applies:
P → A: qvmax	B → T: qv/2
P → B: qv/2	A → T: qvmax
Notice: In the zero position, control spool symbols W and WA have a connection from A → T and from B → T with approx. 3% of the relevant nominal cross-section.

Connection at connector

Connection at mating connector

Inductive position transducer

4WRE 6

Dimensions in mm

1	Valve housing
2	Proportional solenoid "a" with inductive position transducer
3	Proportional solenoid "b"
4	Mating connector "A", color gray, separate order
5	Mating connector "B", color black, separate order
6	Mating connector for inductive position transducer, separate order
7	Plug screw for valves with one solenoid (2 spool positions, version "EA" or "WA")
8	Identical seal rings for ports A, B, P, and T
9	Space required to remove the mating connector
10	Name plate
11	Machined valve contact surface; Porting pattern according to ISO 4401-03-02-0-05 (with locating hole) Deviating from the standard: - without locating hole "G" - ports P, A, B and T with Ø8 mm

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%

1	Valve housing
2	Proportional solenoid "a" with inductive position transducer
3	Proportional solenoid "b"
4	Mating connector "A", color gray, separate order
5	Mating connector "B", color black, separate order
6	Mating connector for inductive position transducer, separate order
7	Plug screw for valves with one solenoid (2 spool positions, version "EA" or "WA")
8	Identical seal rings for ports A, B, P and T (T1)
9	Space required to remove the mating connector
10	Name plate
11	Machined valve contact surface; Porting pattern according to ISO 4401-05-04-0-05 Deviating from the standard: Port T1 with Ø11.2 mm

Spare parts & repair

4WRE10EA75-2X/G24K4/V

Manufacturer: Bosch Rexroth

Material #: R900969351

Model : 4WRE10EA75-2X/G24K4/V

Availability: 3 In Stock

This product is eligible for factory repair.

Type 4WRE...-2X/...

Set-up:

Function:

Important notice:

Valve with two spool positions: (Type 4WRE…A...)

Notice:

Notice:

general

hydraulic

electrical

(measured with HLP46, ϑÖl = 40 ±5 °C)

Zero flow with central control spool position “V32”

Rated flow 4 l/min at a valve pressure differential of 10 bar

Rated flow 8 l/min at a valve pressure differential of 10 bar

Rated flow 16 l/min at a valve pressure differential of 10 bar

Rated flow 32 l/min at a valve pressure differential of 10 bar

Load function with maximum valve opening;Rated flow 4, 8, 16 and 32 l/min;Control spool V

Symbols

Connection at connector

Connection at mating connector

Inductive position transducer

4WRE 6

Recommended valve mounting screws (separate order):

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

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