4WRAE6W03-2X/G24N9K31/A1V

Manufacturer: Bosch Rexroth

Material #: R900736894

Model : 4WRAE6W03-2X/G24N9K31/A1V

***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 4WRAE6W03-2X/G24N9K31/A1V (R900736894) is a high-performance proportional directional valve designed for direct operation and subplate mounting, with a porting pattern that adheres to ISO standards. This valve is engineered to control the direction and magnitude of fluid flow within hydraulic systems, utilizing proportional solenoids with a central thread and detachable coil for precise operation. The integrated electronics within the solenoids allow for seamless control without the need for external amplifiers. The 4WRAE6W03-2X/G24N9K31/A1V features a robust housing that incorporates a spring-centered control spool, which is held in its central position by compression springs when the solenoids are deenergized. Upon energization of one of the solenoids, the control spool is actuated directly, shifting proportionally to the electrical input signal. This enables progressive flow characteristics as it connects from P to A and B to T through orifice-type cross-sections. This particular model of valve comes with two spool positions (type WRA...A...), where it operates with only one solenoid (solenoid 'a'), while the second position is replaced by either a plug screw or a cover depending on the size designation (NG6 or NG10 respectively). For optimal performance, it's important to ensure that the tank line does not run empty and if necessary, install a preload valve with an approximate preload pressure of 5 bar under certain installation conditions. The Bosch Rexroth 4WRAE6W03-2X/G24N9K31/A1V valve boasts impressive specifications with a maximum operating pressure of 350 bar and maximum flow rate of 30 l/min, making it suitable for various applications where precise flow control is required. Its direct operated design without electrical position feedback ensures reliability and straightforward use in hydraulic systems.

$2,964.00 USD

More are expected on September 30, 2024

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Status: This product is temporarily out of stock.

Qty: Delivered as early as September 30, 2024 when ordered in

This product is eligible for factory repair.

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Direct operated proportional directional valve, without electrical position feedback, with integrated electronics (OBE) Control of the direction and magnitude of a flow 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

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 via integrated 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 thread Integrated electronics (7)

Function:

With de-energized solenoids (5 and 6), central position of the control spool (2) due to compression springs (3 and 4) Direct actuation of the control spool (2) by energization of one proportional solenoid, e. g. energization of solenoid "b" (6) 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 (6) Control spool (2) is returned to the central position by the compression spring (3)

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.

01	02	03	04	05		06		07	08	09		10	11	12
4	WRAE				‒	2X	/	G24			/			*

01	4 main ports	4
02	Proportional directional valve with integrated electronics	WRAE
03	Size 6	6
03	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
Rated flow NG10
05	30 l/min	30
05	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
08	Sea water-resistant	J 1)
Electrical connection
09	Connector DIN EN 175201-804	K31 2)
Electrical interface
10	Command value ±10 V	A1
10	Command value 4 to 20 mA	F1
Seal material
11	NBR seals	M
11	FKM seals	V
12	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		4WRAE
Size		6	10
Installation position		any, preferably horizontal
Ambient temperature range	°C	-20 … +50
Storage temperature range	°C	-20 … +80
Weight	kg	2.2	6.8

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
Maximum flow	with double flow	l/min	80	140
Nominal flow		l/min	7 15 26	30 60
Hydraulic fluid 1)			Mineral oil (HL, HLP) to DIN 51524
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) 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	19 … 35
Command value input	"A1"	V	± 10
Command value input range	"F1"	mA	4 … 20

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.

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: 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.

Type 4WRAE

Type 4WRAE...EA;Type 4WRAE...WA

Pin assignment	Contact	Signal
Power supply	A	24 VDC (19...35 VDC)
Power supply	B	GND
	C	cannot be used 1)
Differential amplifier input (command value)	D	Command value (±10 V / 4...20 mA)
Differential amplifier input (command value)	E	Reference potential
	F	cannot be used 1)
1)	Contacts C and F must not be connected!

Command value:
Positive command value (0...10 V or 12...20 mA) at D and reference potential at E result in flow from P → A and B → T.
Negative command value (0...-10 V or 12...4 mA) at D and reference potential at E result in flow from P → B and A → T.
With valves with solenoid on side “a” (control spool variant EA and WA), a positive command value at D and reference potential at E (NG6: 4...20 mA and NG10: 12...20 mA) result in flow from P → B and A → T.
Connection cable: Recommendation:
up to 25 m cable length type LiYCY 5 x 0.75 mm²
up to 50 m cable length type LiYCY 5 x 1.0 mm²
External diameter 6.5 … 11 mm
Connect shield on PE only on the supply side

4WRAE 6

Dimensions in mm

1	Valve housing
2	Proportional solenoid "a"
3	Proportional solenoid "b"
4	Mating connector according to DIN EN 175201-804, 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	Integrated electronics (OBE)
9	Space required for the connection cable and to remove the mating connector
10	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%

4WRAE 10

Dimensions in mm

1	Valve housing
2	Proportional solenoid "a"
3	Proportional solenoid "b"
4	Mating connector according to DIN EN 175201-804, 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	Integrated electronics (OBE)
10	Space required for the connection cable and to remove the mating connector
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

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%

Spare parts & repair

4WRAE6W03-2X/G24N9K31/A1V

Manufacturer: Bosch Rexroth

Material #: R900736894

Model : 4WRAE6W03-2X/G24N9K31/A1V

More are expected on September 30, 2024

This product is eligible for factory repair.

Set-up:

Function:

Valve with two spool positions (type 4WRA...A...):

Notice:

general

hydraulic

electrical

(measured with HLP46, ϑÖl = 40 ±5 °C)

Rated flow 7 l/min at a valve pressure differential of 10 bar

Rated flow 15 l/min at a valve pressure differential of 10 bar

Rated flow 30 l/min at a valve pressure differential of 10 bar

Transition function with stepped electric input signals

Performance limit rated flow 7 l/min

Performance limit rated flow 15 l/min

Performance limit rated flow 30 l/min

Rated flow 30 l/min at a valve pressure differential of 10 bar

Rated flow 60 l/min at a valve pressure differential of 10 bar

Transition function with stepped electric input signals

Performance limit rated flow 30 l/min

Performance limit rated flow 60 l/min

Symbols

Type 4WRAE

Type 4WRAE...EA;Type 4WRAE...WA

4WRAE 6

Recommended valve mounting screws (separate order):

4WRAE 10

Recommended valve mounting screws (separate order):

Mating connectors for valves with round connector, 6-pole + PE

7P Z31

Mating connectors for valves with round connector, 6-pole + PE

7P Z31

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