4WRA6V15-2X/G24N9K4/V

Manufacturer: Bosch Rexroth

Material #: R900938633

Model : 4WRA6V15-2X/G24N9K4/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 4WRA6V15-2X/G24N9K4/V (R900938633) is a state-of-the-art proportional directional valve characterized by its direct operation and plate design suitable for subplate mounting with an ISO porting pattern. This model is adept at controlling the direction and magnitude of fluid flow within hydraulic systems. It operates using proportional solenoids that feature a central thread and a detachable coil, which are governed by external control electronics. The valve's architecture includes a robust housing, a control spool balanced by compression springs, and solenoids that enable precise operation. In its default state, with solenoids deenergized, the control spool is held in the central position by the springs. Upon energization of a solenoid, the control spool is actuated directly—shifting proportionally to the electrical input signal—thereby facilitating connection from P to A and B to T through orifice-type cross-sections that exhibit progressive flow characteristics. This particular model has two spool positions (type WRA...A...) and comes equipped with only one solenoid (solenoid a), while the second position is replaced by either a plug screw or cover depending on size designation NG6 or NG10 respectively. The device operates without electrical position feedback but requires external electronics for functionality. It boasts impressive specifications with an operating pressure capacity up to 350 bar and can handle maximum flow rates of up to 15 liters per minute. To ensure proper function, it's crucial not to let the tank line run dry; if installation conditions demand it, a preload valve with approximately 10 bar pressure should be installed. The Bosch Rexroth 4WRA6V15-2X/G24N9K4/V offers precise control for complex hydraulic applications where reliable performance is essential.

$2,119.00 USD

More are expected on October 2, 2024

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Status: This product is temporarily out of stock.

Qty: Delivered as early as October 2, 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 external electronics 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 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 thread

Function:

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.

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

01	4 main ports	4
02	Proportional directional valve without integrated electronics	WRA
Size
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 175301-803	K4 2)
Seal material
10	NBR seals	M
10	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
Maximum flow	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
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	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.

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 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) 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%

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 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

4WRA6V15-2X/G24N9K4/V

Manufacturer: Bosch Rexroth

Material #: R900938633

Model : 4WRA6V15-2X/G24N9K4/V

More are expected on October 2, 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

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 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 4WRA

Type 4WRA...EA;Type 4WRA...WA

Connection at connector

Connection at mating connector

4WRA 6

Recommended valve mounting screws (separate order):

4WRA 10

Recommended valve mounting screws (separate order):

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