4WE6D5X/BG12-12NXHZ2/V

Manufacturer: Bosch Rexroth

Material #: R901344110

Model : 4WE6D5X/BG12-12NXHZ2/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 4WE6D5X/BG12-12NXHZ2/V (R901344110) is a high-performance directional spool valve designed to control the start, stop, and direction of fluid flow in hydraulic systems. This model is a direct operated directional spool valve with solenoid actuation, featuring two solenoids and two spool positions. The valve operates without a detent, meaning in its deenergized state it does not have a defined spool position. The 4WE6D5X/BG12-12NXHZ2/V is constructed with a housing, control spool, wet-pin solenoids, and return springs. The wet-pin solenoids ensure reliable actuation of the control spool by pushing it from its rest position to the required end position for controlling fluid direction from ports P-A and B-T or P-B and A-T. Upon deexcitation of the solenoid, return springs restore the control spool to its original position. Additionally, this valve features a manual override for movement of the control spool without energizing the solenoids. This particular model is suitable for use in potentially explosive atmospheres and complies with Explosion Protection Directive EU standards: IM; IIG. It offers type protection ExibIIMb & ExibIICTGb according to EN standards. The maximum operating pressure for this component is up to bar while it can handle a maximum flow rate of l/min. For optimal functioning under certain operating conditions where flows during switching exceed the performance limit of the valve, the use of a throttle insert in channel P is required. The design also includes provisions for various electrical connections including individual connection with cable gland or connector options along with manual override capability. Overall, Bosch Rexroth's 4WE6D5X/BG12-12NXHZ2/V valve is engineered for precise fluid flow management in hydraulic systems requiring robust performance in challenging environments.

$4,450.00 USD

Availability: 1 In Stock

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Qty: Delivered as early as December 3, 2024 when ordered in

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Direct operated directional spool valve with solenoid actuation for intended use in potentially explosive atmospheres Porting pattern according to ISO 4401-03-02-0-05 Subplates available in FE/ZN version (see dimensions) Wet-pin DC solenoids Electrical connection optionally with: Individual connection with cable gland, 2 m connection line, connector With manual override

Directional valves of type WE are solenoid-actuated directional spool valves. They control the start, stop and direction of a fluid 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, the control spool (3) is held in the central position or in the initial position by the return springs (4) (except for impulse spools). 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. This enables the necessary direction of flow from P → A and B → T or P → B and

A → T.

After de-excitation of the solenoid (2), the return spring (4) pushes the control spool (3) back to its rest position.

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

Type 4WE 6.. 5X/O...X (only possible with symbols A, C and D)

This version is a directional valve with two spool positions and two solenoids without detent. In the de-energized condition, there is no defined spool position.

Notice:

The tank line must not be allowed to run empty. With corresponding installation conditions, a preload valve (preload pressure approx. 2 bar) is to be installed.

Throttle insert (valve type 4WE 6..5X/…X.../B.. )

The use of a throttle insert is required when due to prevailing operating conditions, flows can occur during the switching processes, which exceed the performance limit of the valve.

It is inserted in channel P of the directional valve.

Example: Type 4WE 6 E5X/.B.X.K20L/..

01		02	03	04		05	06	07	08	09	10		11	12
	WE	6		5X	/		B		N	XH		/

01	3 main ports	3
01	4 main ports	4
02	Size 6	6
03	Control spool symbol e. g. C, E, EA, EB etc. possible versions see Symbols
04	Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions)	5X
05	Spring return	no code
05	Without spring return	O
06	High-power solenoid, wet (wet-pin)	B
07	Solenoid, direct voltage 12 V
	Nominal power supply 120 mA	G12–12
	Nominal power supply 130 mA	G12–13
	Nominal power supply 190 mA	G12–19
	depending on the electrical connection, see Information on explosion protection
08	with manual override (standard)	N
09	“Intrinsically safe” explosion protection for device group II (all except for mining)	XH
09	For details, please refer to the explosion protection information
Electrical connection
10	Solenoid with 2 m connection line	CKL
	Solenoid with terminal box and cable gland	Z2
	Solenoid with connector	K20L
	For details, please refer to Electrical connection
11	Without throttle insert	no code
	Throttle Ø 0,8 mm	B08
	Throttle Ø 1,0 mm	B10
	Throttle Ø 1.2 mm	B12
	Use if flow > performance limit of the valve
12	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used.

Notice:

For possible combinations of the ordering codes for "Solenoid", "Electrical connection" and "Explosion protection”, please refer to the “Information on explosion protection” table.

included in the scope of delivery:

Valve operating instructions with declaration of conformity in part III

general

Size			6
Weight	Valve with one solenoid	kg	2.6
Weight	Valve with two solenoids	kg	4.2
Installation position			any
Ambient temperature range		°C	-20 … +50
Storage temperature range		°C	+15 … +30
Admissible vibration load 1)		Hz	20 ... 2,000
Surface protection	Valve body		Galvanized
Surface protection	Solenoid		Galvanized
Thermal conductivity of the subplate (EN-GJS-500-7)		W/m K	≥ 38

1)	Amplitude 0,05 g2/Hz (10 g RMS)

hydraulic

Size			6
Maximum surface temperature			see Information on explosion protection
Maximum operating pressure	Port P	bar	210
	Port A	bar	210
	Port B	bar	210
	Port T 1)	bar	100
Maximum flow		l/min	20
Hydraulic fluid			see table
Hydraulic fluid temperature range	NBR seals	°C	-20 … +80
Hydraulic fluid temperature range	FKM seals	°C	-15 … +50
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 oil		HL, HLP	FKM, NBR	DIN 51524
Bio-degradable	Insoluble in water	HEES (synthetic esters)	FKM	VDMA 24568
	Insoluble in water	HETG (rape seed oil)	FKM, NBR	VDMA 24568
	Soluble in water	HEPG (polyglycols)	FKM	VDMA 24568
Containing water	Containing water	HFC 1)	NBR	ISO 12922
Other hydraulic fluids on request
Ignition temperature > 130 °C

	1) Only in connection with NBR seals. For more information, please ask our sales staff.

Special application conditions for a safe application	In case of valves with two solenoids, maximally one of the solenoids may be energized at a time.

electrical

Nominal voltage			12 V
Voltage type			Direct voltage
Admissible residual ripple		%	< 5
Voltage tolerance (nominal voltage)		%	± 10
Duty cycle 1)		%	100
Rated current		mA	120	130	190
Coil resistance with solenoid temperature 20 °C [68 °F]		Ω	89		59
Minimum current for achieving the hydraulic switching power		mA	88	96	143
Switch-off voltage peak of solenoid (max.)		V	- 3
Switching time according to ISO 6403	ON	ms	145		105
Switching time according to ISO 6403	OFF	ms	80		100
Protection class according to DIN EN 60529 2)			IP65

1)	Operating mode according to VDE 0580
2)	With correctly installed electrical connection

Information on explosion protection

Type				G12-12	G12-13	G12-19
Area of application according to directive 2014/34/EU				II 2G		-
Type of protection valve				c (EN 13463-5)		-
Maximum surface temperature 1)			°C	80		-
Temperature class				T6		-
Type of protection valve solenoid according to EN 60079-0:2009 / EN 60079-11:2007				Ex ib IIC T6 Gb		-
Baumusterprüfbescheinigung Magnet				BVS 08 ATEX E 023		-
“IECEx Certificate of Conformity” for solenoid				IECEx BVS 07.0008		-
Safety-related maximum values of the solenoids dependent on the device group and the type of the electrical connection	Electrical connection CKL	Maximum voltage Ui		Version not available	27 V DC	Version not available
		Maximum current Ii		Version not available	2 A	Version not available
		Maximum input power P		Version not available	3 W	Version not available
	Electrical connection Z2	Maximum voltage Ui	VDC	27	Version not available
		Maximum current Ii	A	2	Version not available
		Effective inner inductivity Li		neglectable	Version not available
		Effective inner capacity Ci		neglectable	Version not available
	Electrical connection K20L	Maximum voltage Ui		Version not available
		Maximum current Ii		Version not available
		Effective inner inductivity Li		Version not available
		Effective inner capacity Ci		Version not available

1)	Surface temperature > 50 °C, provide contact protection.

(measured with HLP46, ϑOil = 40 °C ± 5 °C and p = 100 bar)

Δp-qV characteristic curves

Symbols	Direction of flow
Symbols	P–A	P–B	A–T	B–T
A,B	3	3	‒	‒
C	6	6	6	6
D,Y	1	1	4	4
E	3	3	7	7
H	8	8	7	7
J	3	3	7	7
L	3	3	7	5
M	8	8	4	5
U	3	3	5	7
B1	2	2	‒	‒
X7	3	‒	‒	3

Performance limits

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

Notice:

The specified performance limits are valid for use with two directions of flow (e. g. from P → A and simultaneous return flow from B → T).

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

In such use cases, please consult us!

The performance limits were determined when the solenoids were at operating temperature, at 10 % undervoltage and without tank preloading.

DC solenoid
Characteristic curve	Symbol
1	D, Y, A, B, C, E, H, J, L, M, U
2	X7
3	B1

	2) Example: Control spool symbol E with spool position "a" → ordering code ..EA..

The type-examination tested valve solenoid of the valve is equipped with an electrical connection according to the following table. The electrical connection of the solenoids is polarity-independent.

Ordering code for the electrical connection	Type of connection Description	Circuit diagram	Ordering code for the solenoid, availability
CKL	Electrical connection via non-exchangeable, two-core connection line, blue Operating display via light emitting diode (LED), red		G12–13 (130 mA) G12–19 (190 mA)
	Connection line, two-core
	Line cross-section	0.75 mm2 finely stranded
	Line diameter	approx. 5.6 mm
	Length	2 m
Z2	Electrical connection via 2-pole terminal in terminal box with cable gland without operating display		G12–12 (120 mA)
	Cable gland
	Threaded connection	M20x1,5
	Line diameter	6,5 ... 9,5 mm1)
	Sealing	Outer sheath sealing
	Connection terminal solenoid
	For line cross-section	0,75 ... 1,5 mm2
K20L	Electrical connection via connector, 3-pole with pin contacts, type 845-11-1125-001, FCI/Souriau Operating display via light emitting diode (LED), red Suitable mating connector, type 845-11-8522-001, FCI/Souriau, must be ordered separately.		G12–19 (190 mA)

1) Larger diameters upon request

Type WE 6../.B.X.K20L/...

Dimensions in mm

7	red LED for displaying the operating state, or plug screw

1	Name plate
2	Same seal rings for ports A, B, P, T
3	Cover for valves with one solenoid
4	Valve solenoid
5	Porting pattern according to ISO 4401-03-02-0-05
6	Receiving hole for locating pin according to ISO 4401-03-02-0-05, (locating pin must be ordered separately, mat. no. R900005694)
7	red LED for displaying the operating state, or plug screw

Valve mounting screws

For reasons of stability, exclusively the following valve mounting screws are to be used:

4 hexagon socket head cap screws

ISO 4762-M5x50-10.9-flZn-240h-L

(friction coefficient 0.09 - 0.14 according to VDA 235-101)

Mat. no. R913000064

(must be ordered separately)

Subplates

(without locating hole)

G 341/01 FE/ZN (G1/4)

G 342/01 FE/ZN (G3/8)

G 502/01 FE/ZN (G1/2)

(with locating hole)

G 341/60 FE/ZN (G1/4)

G 342/60 FE/ZN (G3/8)

G 502/60 FE/ZN (G1/2)

with dimensions as in the data sheet 45052

(must be ordered separately)

Notice:

Subplates are no components in the sense of directive 94/9/EC and can be used after an assessment of the risk of ignition by the manufacturer of the overall system.

The G...FE/ZN versions are free from aluminum and/or free from magnesium and galvanized.

Type WE 6../.B.X.CKL/...

(readily assembled with 2 x 2 m connection line)
Dimensions in mm

7	red LED for displaying the operating state, or plug screw

1	Name plate
2	Same seal rings for ports A, B, P, T
3	Cover for valves with one solenoid
4	Valve solenoid
5	Porting pattern according to ISO 4401-03-02-0-05
6	Receiving hole for locating pin according to ISO 4401-03-02-0-05, (locating pin must be ordered separately, mat. no. R900005694)
7	red LED for displaying the operating state, or plug screw

Type WE 6../.B.X.Z2/...

(with terminal box and cable gland)
Dimensions in mm

7	red LED for displaying the operating state, or plug screw

Installation conditions

Dimensions in mm

4WE6D5X/BG12-12NXHZ2/V

Manufacturer: Bosch Rexroth

Material #: R901344110

Model : 4WE6D5X/BG12-12NXHZ2/V

Availability: 1 In Stock

This product is eligible for factory repair.

Example: Type 4WE 6 E5X/.B.X.K20L/..

general

hydraulic

electrical

Information on explosion protection

(measured with HLP46, ϑOil = 40 °C ± 5 °C and p = 100 bar)

Δp-qV characteristic curves

Performance limits

Notice:

Type WE 6../.B.X.K20L/...

Type WE 6../.B.X.CKL/...

Type WE 6../.B.X.Z2/...

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