BOSCH REXROTH
R900920993

BOSCH REXROTH
Material:R900920993
Model:4WRSE 6 V10-3X/G24K0/A1V-280

Due to extremely high demand, please call 877-366-7226 for availability

***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 4WRSE 6 V10-3X/G24K0/A1V-280 (R900920993) is a high-response directional control valve designed for precise operation and control of hydraulic flow direction and size. This direct-operated valve is ideal for applications requiring accurate position and velocity control. It features integrated control electronics OBE, which allows for the efficient operation of the control solenoids that direct the movement of the control spool within the valve housing. The 4WRSE 6 V10-3X/G24K0/A1V-280 is equipped with a position transducer for electrical position feedback, ensuring high response sensitivity and low hysteresis in performance. The zero-point adjustment can be easily accessed through a Pg cover, allowing for fine-tuning and maintenance. The robust construction includes a housing with connection surface, a control spool balanced by compression springs, and solenoids that work together to deliver reliable and consistent results. In terms of functionality, when the solenoids are deenergized, the control spool remains in a central position due to the compression springs. Upon energizing a solenoid, such as solenoid b, the control spool shifts proportionally to the electric input signal, enabling fluid flow between ports in a controlled manner. Once deenergized again, the spring mechanism returns the spool to its central position. Designed for subplate mounting with porting patterns according to DIN form A and ISO standards, this valve supports a maximum operating pressure of up to 280 bar and can handle nominal flow rates up to l/min (specific flow rates not provided). Its compact size and component series X make it suitable for various applications where space may be limited but precise hydraulic control is essential.

The 4/3 directional control valves are designed as direct operated devices in plate design. Operation is effected by means of control solenoids. The solenoids are controlled via integrated control electronics (OBE).

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) Position transducer (7) integrated control electronics (OBE) (8) Zero point adjustment accessible via Pg9 cover (9)

Functional description:

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 of a control solenoid

e.g. control solenoid "b" (6)

Displacement of the control spool (2) to the left, proportionally to the electric input signal Connection from P → A and B → T via orifice-type cross-sections with linear flow characteristics Switching off the solenoid (6)

The compression spring (3) brings the control spool (2) back into the central position

In the de-energized condition, the control spool (2) is held in a mechanical central position by the return springs of the solenoids. With control spool symbols “V” and “Q”, this position does not correspond to the hydraulic central position! When the electric valve control loop is closed, the control spool (2) is positioned in the hydraulic central position.

4WRSE 10

technical illustration-R900920993-Direct operated high-response directional valve with integrated control electronics (OBE) for the control of flow direction and size Suitable for position and velocity control Operation by means of control solenoids Electrical position feedback High response sensitivity and low hysteresis Integrated electronics (OBE) For subplate mounting: Porting pattern according to DIN 24340 form A and ISO 4401

01	02	03	04	05	06	07		08		09	10		11	12	13
4WRS	E						‒	3X	/	G24	K0	/		V	*

01	High-response directional valve	4WRS
02	With integrated control electronics	E
03	Without sleeve	no code
04	Size 6	6
04	Size 10	10
05	Symbols; for the possible version, see "Symbols/Circuit diagrams"	V, V1-, Q2-
Installation side of the inductive position transducer
06		no code
06		C
Rated flow at 10 bar valve pressure differential
07	Size 6
	4l/min	04 1)
	10 l/min	10
	20 l/min	20
	35 l/min	35
	Size 10
	25 l/min	25
	50l/min	50
	75 l/min	80
08	Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)	3X
Supply voltage of the control electronics
09	Direct voltage 24 V	G24
Electrical connection
10	Without mating connector, with connector according to DIN EN 175201-804	K0
Electrical interface
11	Command value input ±10 VDC	A1
11	Command value input 4 ... 20 mA	F1
Seal material
12	FKM seals Suitable for mineral oils (HL, HLP) according to DIN 51524 and phosphoric acid ester (HFD-R)	V
13	Further details in the plain text	*
1)	Only for symbol V

For applications outside these parameters, please consult us!

general

Type		4WRSE
Size		6	10
Component series		3X
Installation position		any, preferably horizontal
Weight	kg	3	7.3
Storage temperature range	°C	-20 … +80
Ambient temperature range	°C	-20 … +50

hydraulic

Type			4WRSE
Size			6	10
Maximum operating pressure		bar	315
Maximum operating pressure	Port P	bar	315
	Port A	bar	315
	Port B	bar	315
	Port T	bar	315
Maximum flow		l/min	80	180
Nominal flow 1)		l/min	4 10 20 35	25 50 75
Hydraulic fluid temperature range		°C	-20 … +80
Viscosity range	Maximum admissible	mm²/s	20 … 380
	Recommended	mm²/s	30 … 46
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2)			Class 18/16/13 according to ISO 4406 (c)
Hysteresis		%	≤ 0.05
Response sensitivity		%	≤ 0.03
Range of inversion		%	≤ 0.03

1)	±10% with Δp = 10 bar, Δp = valve pressure differential
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
Phosphoric acid esters	HFD-R	FKM
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us.

electrical

Type			4WRSE
Size			6	10
Power supply	Nominal voltage	VDC	24
	Lower limit value	VDC	19.4
	Upper limit value	VDC	35
Maximum solenoid current		mA	2
Maximum coil temperature 1)		°C	150
Duty cycle		%	100
Current consumption	Imax	A	2	2.8
	Impulse load	A	4
Protection class according to DIN EN 60529			IP65 (with mating connector mounted and locked)

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

Symbol V1-
P → A: qv P → B: qv/2	B → T: qv/2 A → T: qv
Symbol Q2-
P → A: qv P → B: qv/3	B → T: qv A → T: qv
Notice:With control spools V and V1-, there is an overlap of -1.0 ... +1.0 %

Type 4WRSE..V (standard)

Type 4WRSE..VC

Type 4WRSE..Q2 (standard)

Type 4WRSE..Q2C

Pin assignment	Contact	Assignment interface "A1"	Assignment interface "F1"
Power supply	A	24 VDC (19,4 ... 35 VDC), Imax = 2 A (NG6), Imax = 2.8 A (NG10), impulse load: 4 A
Power supply	B	0 V
Reference potential actual value	C	Reference potential for contact F; connect (star-like) to ground ⊥ on the control side	Reference potential for contact F
Differential amplifier input (command value)	D	±10 V command value; Re > 50 kΩ	4 ...20 mA command value; Re > 100 Ω
Differential amplifier input (command value)	E	Reference potential for contact D
Measuring output (actual value)	F	± 10 V; Imax = 2 mA	4 ... 20 mA; load resistance maximum 500 Ω
	PE	connected to cooling element and valve housing

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.

Actual value:

Positive signal (0...10 V or 12...20 mA) at F and reference potential at C result in flow from P → A.

Connection line:

Recommendation:

up to 25 m line length: Type LiYCY 7 x 0.75 mm² up to 50 m line length: Type LiYCY 7 x 1.0 mm²

External diameter 6.5 … 11 mm and/or 8 ... 13.5 mm

Connect shield to ⊥ only on the supply side.

Block diagram / pin assignment

Interface A1

Block diagram / pin assignment

Interface F1

Notice:

Electrical signals provided via control electronics (e. g. actual value) must not be used to switch off safety-relevant machine functions. (See also the European standard "Safety requirements for fluid-powered systems and their components - Hydraulics", EN 982!)

1	Valve housing
2.1	Control solenoid "a" with inductive position transducer
2.2	Control solenoid “b”
3.1	Control solenoid "b" with inductive position transducer
3.2	Control solenoid “a”
4	Mating connector according to DIN EN 175201-804, separate order
5	Space required to remove the mating connector
6	Additional space required for bending radius of the connection line
7	Name plate
8	Identical seal rings for ports A, B, P, and T
9	Machined valve contact surface; Porting pattern according to DIN 24340-A6 and ISO 4401-03-02-0-05

Recommended valve mounting screws (separate order):

4 hexagon socket head cap screws ISO 4762 - M5 x 30 - 10.9-flZn-240h-L (Friction coefficient total = 0.09 ... 0.14)

Tightening torque MA = 7 Nm ± 10 % , material no. R913000316

1	Valve housing
2.1	Control solenoid "a" with inductive position transducer
2.2	Control solenoid “b”
3.1	Control solenoid "b" with inductive position transducer
3.2	Control solenoid “a”
4	Mating connector according to DIN EN 175201-804, separate order
5	Space required to remove the mating connector
6	Additional space required for bending radius of the connection line
7	Name plate
8	Identical seal rings for ports A, B, P, and T
9	Machined valve contact surface; Porting pattern according to DIN 24340-A10 and ISO 4401-05-05-0-05

Recommended valve mounting screws (separate order):

4 hexagon socket head cap screws ISO 4762 - M6 x 40 - 10.9-flZn-240h-L (Friction coefficient total = 0.09 ... 0.14)

Tightening torque MA = 12.5 Nm ± 10 %, material no. R913000058

Spare parts & repair

BOSCH REXROTH
R900920993

Set-up: