Directional spool valves, pilot operated, with hydraulic actuation H-4WEH...VP1

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Артикул: RX7405

Directional spool valves, pilot operated, with hydraulic actuation H-4WEH...VP1

Name: Directional spool valves, pilot operated, with hydraulic actuation H-4WEH...VP1
Brand: Bosch Rexroth
SKU: RX7405
Price: 2850 RUB
Availability: InStock

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Description

Size 10 … 32
Component series 4X, 7X, 6X
Maximum operating pressure 350 bar
Maximum flow 1100 l/min
Area of application according to
– NEC500 and CEC Appendix J: Class I, Division 1, Groups B, C, D T4
– NEC502 and CEC Section 18: Class II/III, Division 1, Groups E, F, G T4
Type of protection valve solenoid: XP (explosion-proof); DIP (dust ignition protection)

Features

4/3- or 4/2-way version
For subplate mounting
Porting pattern according to ISO 4401
Spring or pressure centering, spring end position or hydraulic end position
Wet-pin DC or AC solenoids, optional
Electrical connection with individual connection or piping connection (NPT 1/2")
Manual override
Optional versions:
- Switching time adjustment
- Preload valve in channel P of the main valve

Product description

Type H-4WEH 16 …VP1…

The valve type H-4WEH is a directional spool valve with electro-hydraulic actuation. It controls the start, stop and direction of a flow.

The directional valve basically consists of the main valve with housing (1), the main control spool (2), one or two return springs (3.1) and (3.2), as well as the pilot control valve (4) with one or two solenoids "a" (5.1) and/or "b" (5.2).

The main control spool (2) in the main valve is held in the zero or initial position by the springs or by means of pressurization. In the initial position, the two spring chambers (6) and (8) are connected with the tank in a depressurized form via the pilot control valve (4). Via the control line (7), the pilot control valve is supplied with pilot oil. Supply can be implemented internally or externally (externally via port X).

Upon actuation of the pilot control valve, e. g. solenoid "a", the pilot control spool (10) is moved to the left and thus, the spring chamber (8) is pressurized with pilot pressure. The spring chamber (6) remains depressurized.

The pilot pressure acts on the left side of the main control spool (2) and moves it against the spring (3.1). This connects ports P with B and A with T in the main valve. On switching off of solenoid, the pilot control spool (10) returns to its initial position (except impulse spool). The spring chamber (8) is unloaded to the tank.

The pilot oil return is implemented internally (via channel T) or externally (via channel Y).

An optional manual override (9) allows for moving of the pilot control spool (10) without solenoid energization.

Notices:

The return springs (3.1) and (3.2) in the spring chambers (6) and (8) hold the main control spool (2) in central position without pilot pressure even with, for example, vertical valve positioning.

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

Pilot oil supply

Type H-4WEH…

The pilot oil supply is implemented externally - via channel X - from a separate pressure supply.

The pilot oil return is implemented externally - via channel Y - into the tank.

Type H-4WEH…E…

The pilot oil supply is implemented internally from channel P of the main valve.

The pilot oil return is implemented externally - via channel Y - into the tank. In the subplate, port X is closed.

Type H-4WEH…ET…

The pilot oil supply is implemented internally from channel P of the main valve.

The pilot oil return is implemented internally - via channel T - into the tank. In the subplate, ports X and Y are closed.

Type H-4WEH…T…

The pilot oil supply is implemented externally - via channel X - from a separate pressure supply.

The pilot oil return is implemented internally - via channel T - into the tank. In the subplate, port Y is closed.

Throttle insert

Use of the throttle insert (5) is necessary if the pilot oil supply in channel P of the pilot control valve is to be limited (see below).

The throttle insert (5) is inserted in channel P of the pilot control valve.

3	Pilot control valve
4	Main valve
5	Throttle insert

Type code

01		02	03	04	05	06	07		08	09	10	11	12	13	14	15	16	17	18	19	20
H	–	4	WEH					/		6B		N	VP1			Z2					*

01	Up to 350 bar	H -
02	4-way version	4
Types of actuation
03	Directional valve, electro-hydraulically actuated	WEH
Size
04	NG10	10
	NG16	16
	NG25	25
	NG32	32
Control spool return main valve
05	By means of springs	no code
05	hydraulic 1)	H
06	For control spool symbols, see symbols
07	Component series 40 ... 49 – NG10 (40 ... 49: unchanged installation and connection dimensions)	4X
	Component series 60 ... 69 – NG25 (4W.H 25.) and NG32 (60 ... 69: unchanged installation and connection dimensions)	6X
	Component series 70 ... 79 – NG16 (70 ... 79: unchanged installation and connection dimensions)	7X
Control spool return in the pilot control valve with 2 spool positions and 2 solenoids only possible with control spool C, D, K, Z and hydraulic control spool return in the main valve
08	With spring return	no code
	Without spring return	O
	Without spring return with detent	OF
Pilot control valve
09	High-power valve (data sheet 23178-VP1)	6B
10	Direct voltage 24 V	G24
10	Alternating voltage 120 V	W120R
11	With manual override	N
Explosion protection
12	NEC500, NEC502, CEC Anex J and CEC Section 18	VP1
12	For details see information on explosion protection
Pilot oil flow
13	External pilot oil supply, external pilot oil return 2)	no code
	Internal pilot oil supply, external pilot oil return 2; 3)	E
	Pilot oil supply internal, pilot oil return internal 3)	ET
	External pilot oil supply, internal pilot oil return 2)	T
Switching time adjustment
14	Without switching time adjustment	no code
	Switching time adjustment as supply control	S
	Switching time adjustment as discharge control	S2
Electrical connection
15	Individual connection
15	Solenoid with terminal box and cable gland; for details please refer to "Electrical connection"	Z2
Throttle insert
16	Without throttle insert	no code
	Throttle Ø 0.8 mm	B08
	Throttle Ø 1.0 mm	B10
	Throttle Ø 1.2 mm	B12
	Throttle Ø 1.5 mm	B15
preload valve (not for NG10)
17	without preload valve	no code
17	with preload valve (pö = 4.5 bar)	P4,5
18	without pressure reducing valve	no code
18	With pressure reducing valve 4)	D3
Seal material
19	NBR seals	no code
	FKM seals (other seals upon request)	V
	Observe compatibility of seals with hydraulic fluid used.
20	Further details in the plain text	*

1)	2 switching positions (hydraulic end position): only symbols C, D, K, Z, Y
2)	Pilot oil supply X or pilot oil return Y external:
	– The maximum admissible operating parameters of the pilot control valve must be observed (see data sheet 23178-VP1)!
	– Observe the minimum pilot pressure according to Technical data!
	– Observe the maximum pilot pressure according to Technical data!
3)	Pilot oil supply internal (version “ET” and “E”):
	– Observe the minimum pilot pressure according to Technical data!
	– Observe the maximum pilot pressure according to Technical data! In order to prevent inadmissibly high pressure peaks, a throttle insert "B10" has to be provided in port P of the pilot control valve (see Product description, Pilot oil supply).
	– You must moreover provide the pressure reducing valve "D3".
4)	Only in connection with throttle insert "B10"

Technical data

general

Size				10	16	25	32
Weight	Valve with one solenoid		kg	9.5	12	20	37.5
	Valve with two solenoids, spring-centered		kg	12	14.5	22.5	40
	Switching time adjustment "S" and "S2"		kg	0.8
	Pressure reducing valve "D3"		kg	0.4
Installation position				Any; horizontal with valves with hydraulic control spool return "H" and symbol C, D, K, Z, Y. With suspended installation, higher sensitivity to contamination – horizontal is recommended.
Ambient temperature range			°C	-20 … +60
Storage temperature range			°C	+5 … +40
Maximum storage time			Years	1
Surface protection	Valve body	Pilot control valve		Galvanized
	Valve body	Main valve		Galvanized
	Solenoid			Galvanized
MTTFD values according to EN ISO 13849 1)			Years	75

1)	For further details, see data sheet 08012

hydraulic

Size				10	16	25	32
Maximum operating pressure	Port P		bar	350
	Anschluss A		bar	350
	Port B		bar	350
	Port T	with external pilot oil return Y	bar	250
	Port T	with internal pilot oil return Y	bar	210
	Port Y	with pilot oil return external	bar	210
Maximum pilot pressure 1)			bar	250
Minimum pilot pressure	Pilot oil supply X external or internal (with symbols D, K, E, J, L, M, Q, R, U, W)	3-spool position valve, spring-centered	bar	10	14	13	8.5
		2-spool position valve, spring end position	bar	10	14	13	10
		2-spool position valve, hydraulic end position	bar	7	14	8	5
	Internal pilot oil supply X (with symbols C, F, G, H, P, T, V, Z, S) 2)		bar	6.5 3)	4.5 4)
Pilot volume for switching process	3-spool position valve, spring-centered		cm³	2.04	5.72	14.2	29.4
Pilot volume for switching process	2-spool position valve		cm³	4.08	11.45	28.4	58.8
Pilot volume for shortest switching time, approx.			l/min	35			45
Hydraulic fluid				see table "Hydraulic fluid"
Hydraulic fluid temperature range 5)	NBR seals		°C	-20 … +70
Hydraulic fluid temperature range 5)	FKM seals		°C	-15 … +70
Viscosity range			mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid 6)				Class 20/18/15 according to ISO 4406 (c)
Maximum surface temperature				see Information on explosion protection

1)	Pilot oil supply internal: – The pressure reducing valve “D3” must generally be provided. Pilot oil supply external: – Compliance with the maximum pilot pressure must be ensured by appropriate measures (e. g. protection of the separate pilot oil circuit by using a pressure relief valve)!
2)	Symbol S only for NG16
3)	For symbols C, F, G, H, P, T, V, Z, an internal pilot oil supply is only possible if the flow from P to T in the central position (for 3-spool position valve) or while crossing the central position (for 2-spool position valve) is so large that the pressure differential of P to T reaches a value of at least 7.5 bar and the pilot oil return Y is implemented externally.
4)	For symbols C, F, G, J, H, P, T, V, Z, S (Symbol S only for NG16) – by means of preload valve (not NG10) or correspondingly high flow. (Determination ofthe required flow, see "Preload valve" characteristic curves.) For NG10, a check valve with a cracking pressure of 7,5 bar is to be provided in the return line to the tank.The pilot oil return Y must be implemented externally.
5)	at the valve working ports of the valve
6)	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.

Free flow cross-sections in zero position with symbols Q, V and W

Size			10	16	25	32
Symbol Q	A – T; B – T	mm²	13	32	83	78
Symbol V	P – A	mm²	13	32	83	73
Symbol V	A – T; B – T	mm²	13	32	83	84
Symbol W	A – T; B – T	mm²	2.4	6	14	20

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oil		HL, HLP, HLPD	NBR, FKM	DIN 51524	90220
Bio-degradable	Insoluble in water	HETG	NBR, FKM	ISO 15380	90221
	Insoluble in water	HEES	FKM	ISO 15380
	Soluble in water	HEPG	FKM	ISO 15380
Flame-resistant	Containing water	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)	NBR	ISO 12922	90223

Important notice on hydraulic fluids:

For more information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us.

There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

Ignition temperature > 180 °C

• Flame-resistant - containing water:

- Maximum pressure differential per control edge 50 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

Voltage type			Direct voltage	AC voltage 50/60 Hz
Available voltages		V	24	120
Voltage tolerance (nominal voltage)		%	± 10
Admissible residual ripple		%	< 5
Duty cycle/operating mode according to VDE 0580			S1 (continuous operation)
Switching time according to ISO 6403 1)			See switching times table
Maximum switching frequency		1/h	3600
Nominal power with ambient temperature 20 °C		W	20
Maximum power with 1.1 x nominal voltage and an ambient temperature of 20 °C		W	20.6
Protection class according to	NEMA 50		NEMA type 4X (with correctly installed electrical connection)
Protection class according to	DIN EN 60529		IP65 (If a suitable and a correctly mounted mating connector are used.)

1)	The switching times were determined at a hydraulic fluid temperature of 40 °C and a viscosity of 46 mm2/s. Deviating hydraulic fluid temperatures can result in different switching times. Switching times change dependent on operating time and application conditions.

Information on explosion protection

Area of application according to	NEC500 and CEC Annex J		Class I, Division 1, Groups B, C, D T4
Area of application according to	NEC502 and CEC Section 18		Class II/III, Division 1, Groups E, F, G T4
Maximum surface temperature 1)		°C	130
Temperature class			T4
Type of protection valve solenoid			XP (explosion-proof); DIP (dust ignition protection)
FM certificate	US		3055770
FM certificate	Canada		3055770C

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

Special application conditions for a safe application

The connection line requires a minimum temperature rating of 105 °C. When selecting the connection line, please observe the requirements regarding the temperature rating and avoid contact of the connection line with the solenoid surface.

In case of valves with two solenoids, maximally one of the solenoids may be energized at a time.

In case of bank assembly, the maximum ambient temperature may not exceed 50 °C.

Ensure unobstructed heat dissipation at the solenoid. The solenoid may not be covered or exposed to direct sunlight.

For use of the valve in the intended explosion protection atmosphere, a conduit seal has to be installed in the pipeline within 450 mm (downstream of the valve solenoid).

Switching times

Pilot pressure		bar	70	250	Spring
Pilot pressure		bar	ON		OFF
NG10	Without throttle insert	ms	40 … 90	40 … 90	20 … 60
NG10	With throttle insert	ms	60 … 120	50 … 100	20 … 60
NG16	Without throttle insert	ms	50 … 110	40 … 90	50 … 110
NG16	With throttle insert	ms	110 … 160	80 … 130	50 … 110
NG25	Without throttle insert	ms	70 … 130	50 ... 100	100 ... 160
NG25	With throttle insert	ms	200 …280	120 … 180	100 ... 160
NG32	Without throttle insert	ms	80 … 160	70 … 130	140 … 190
NG32	With throttle insert	ms	420 … 590	230 … 380	140 … 190

Notes:

Switching times = Contacting at the pilot control valve until start of opening of the control edge in the main valve and change in the control spool stroke by 95%

The switching times are measured according to ISO 6403 with HLP46, ϑÖl = 40 ° C ± 5 ° C. With other oil temperatures, variations are possible.

The switching times were determined using DC solenoids. They increase by approx. 25 ms if AC solenoids are used.

The switching times increase by approx. 30 ms if the pressure reducing valve "D3" is used.

The switching times have been determined under ideal conditions and may differ in the system, depending on the application conditions.

(For applications outside these values, please consult us!)

Diagrams/characteristic curves

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

Size 10

Δp-qV characteristic curves

Symbol	Spool position				Zero position
Symbol	P – A	P – B	A – T 1)	B – T 1)	A – T	B – T	P – T
E, Y, D, Q, V, W, Z	1	1	3	5
F	1	3	1	4	3	–	6
G, T	4	2	4	7	–	–	8
H, C	3	3	1	7	1	5	5
J, K	1	2	1	6
L	2	2	1	4	2	–	–
M	3	3	2	5
P	3	1	2	7	–	5	7
R	1	2	3	–
U	2	2	3	6	–	6	–

1)	The pressure differential refers to the use of port T. If port T1 is additionally used, the pressure differential maybe lower. If only port T1 is used, the relations A – T and B – T may be reversed.

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

Performance limits

2-spool position valve – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring end position in the main valve 1) (with ppilot min = 12 bar)
C, D, K, Y, Z	160	160	160	160	160
X external – hydraulic end position in the main valve
HC, HD, HK, HZ, HY	160	160	160	160	160

1)	If the pilot pressure fails, the function of the return spring is no longer guaranteed with the specified flow values.

Performance limits

3-spool position valves – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring-centered
E, J, L, M, Q, U, V, W, R	160	160	160	160	160
F, P	160	120	100	90	90
G, T	160	160	160	130	120
H	160	160	120	110	100

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

Size 16

Δp-qV characteristic curves

Symbol	Spool position				Zero position
Symbol	P – A	P – B	A – T	B – T	P – T	A – T	B – T
D, E, Y	1	1	3	3
F	1	2	5	5	4	3	–
G	4	1	5	5	7	–	–
C, H	1	1	5	6	2	4	4
K, J	2	2	6	6	–	3	–
L	2	2	5	4	–	3	–
M	1	1	3	4
P	2	1	3	6	5	–	–
Q	1	1	6	6
R	2	4	7	–
S	3	3	3	–	9	–	–
T	4	1	5	5	7	–	–
U	2	2	3	4			6
V, Z	1	1	6	6	10	8	8
W	1	1	3	4

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

Performance limits

2-spool position valve – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring end position in the main valve 1) (with ppilot min = 12 bar)
C, D, K, Y, Z	300	300	300	300	300
X external – spring end position in the main valve
C	300	300	300	300	300
D, Y	300	270	260	250	230
K	300	250	240	230	210
Z	300	260	190	180	160
X external – hydraulic end position in the main valve
HC, HD, HK, HZ, HY	300	300	300	300	300

1)	If the specified flow values are exceeded, the function of the return spring is no longer guaranteed if the pilot pressure fails.

Performance limits

3-spool position valves – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring-centered
E, H, J, L, M, Q, U, W, R	300	300	300	300	300
F, P	300	250	180	170	150
G, T	300	300	240	210	190
S	300	300	300	250	220
V	300	250	210	200	180
X external – pressure-centered (at minimum pilot pressure of 16 bar)
all 1)	300	300	300	300	300

1)	With symbol V, the pilot control valve is not required for flows >160 l/min.

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

NG25

Δp-qV characteristic curves

Symbol	Spool position				Zero position
Symbol	P – A	P – B	A – T 1)	B – T 1)	A – T	B – T	P – T
E, Y, D	1	1	3	4
F	1	1	2	4	2	–	5
G, T	1	1	2	5	–	–	7
H	1	1	2	5	2	2	4
C	1	1	2	5
J	1	1	2	5	6	5	–
K	1	1	2	5
L	1	1	2	4	5	–	–
M	1	1	3	4
P	1	1	3	5	–	3	5
Q	1	1	2	3
R	1	1	3	–
U	1	1	2	5	–	5	–
V	1	1	2	5	8	7	–
Z	1	1	2	5
W	1	1	3	4
8 Symbol R, spool position B – A

1)	The pressure differential refers to the use of port T. If port T1 is additionally used, the pressure differential maybe lower. If only port T1 is used, the relations A – T and B – T may be reversed.

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

Performance limits

2-spool position valve – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring end position in the main valve (with ppilotmin = 13 bar)
C, D, K, Y, Z	700	700	700	700	650
X external – spring end position in the main valve 1)
C	700	700	700	700	650
D, Y	700	650	400	350	300
K	700	650	420	370	320
Z	700	700	650	480	400
X external – hydraulic end position in the main valve
HC, HD, HK, HZ, HY	700	700	700	700	700
HC./O…, HD./O…, HK./O…, HZ./O…	700	700	700	700	700
HC./OF…, HD./OF…, HK./OF…, HZ./OF…	700	700	700	700	700

1)	If the specified flow values are exceeded, the function of the return spring is no longer guaranteed if the pilot pressure fails.

Performance limits

3-spool position valves – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring-centered
E, L, M, Q, U, W	700	700	700	700	650
G, T	400	400	400	400	400
F	650	550	430	330	300
H	700	650	550	400	360
J	700	700	650	600	520
P	650	550	430	430	300
V	650	550	400	350	310
R	700	700	700	650	580
X external – pressure-centered (at minimum pilot pressure of 18 bar)
E, F, H, J, L, M, P, Q, R, U, V, W	700	700	700	700	650
G, T	400	400	400	400	400
X external – pressure-centered (with pilot pressure > 30 bar)
G, T	700	700	700	700	650

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

Size 32

∆p-qv-characteristic curves – Symbol E, R and W

Size 32

∆p-qv- characteristic curves – Symbol G and T

Characteristic curve selection
Symbol	Spool position
Symbol	P – A	P – B	A – T	B – T	B – A
E	4	4	3	2	–
R	4	4	3	–	1
W	4	4	3	2	–

Symbol	Spool position
Symbol	P – A	P – B	A – T	B – T	P – T
G	7	8	7	5	6
T	7	8	7	5	6

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

Performance limits

2-spool position valve – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring end position in the main valve (with ppilot min = 10 bar)
C, D, K, Y, Z	1100	1040	860	750	680
X external – spring end position in the main valve 1)
C	1100	1040	860	800	700
D, Y	1100	1040	540	480	420
K	1100	1040	860	500	450
Z	1100	1040	860	700	650
X external – hydraulic end position in the main valve
HC, HD, HK, HZ, HY	1100	1040	860	750	680

1)	If the specified flow values are exceeded, the function of the return spring is no longer guaranteed if the pilot pressure fails.

Performance limits

3-spool position valves – qV max in l/min
Symbol	Operating pressure pmax in bar
Symbol	70	140	210	280	350
X external – spring-centered
E, J, L, M, Q, R, U, W	1100	1040	860	750	680
G, T, H, F, P	900	900	800	650	450
V	1100	1000	680	500	450
X external – pressure-centered (at minimum pilot pressure of 8.5 bar)
all	1100	1040	860	750	680

Performance limits : Important information

Notice (applies to all sizes):

The specified switching power limits are valid for use with two directions of flow (e. g. from P → A and simultaneous return flow from B → T) at the ratio 1:1.

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

In such cases, please consult us!

The switching power limit was established while the solenoids were at operating temperature, at 10 % undervoltage and without tank preloading.

NG16

With pilot oil supply X internal, a preload valve has to be used for flows < 160 l/min due to the negative overlap of symbols C, Z and HC, HZ.

With pilot oil supply X internal, sufficient flow has to be ensured due to the negative overlap of symbols F, G, H, P, S and T (for the determination of the required flow, see "Preload valve" characteristic curves). If the required flow is not reached, a preload valve has to be used (see technical data).

NG25

With pilot oil supply X internal, a preload valve has to be used for flows < 180 l/min due to the negative overlap of the symbols Z, HZ and V.

With pilot oil supply X internal, sufficient flow has to be ensured due to the negative overlap of symbols C, HC, F, G, H, P, and T (for the determination of the required flow, see "Preload valve" characteristic curves). If the required flow is not reached, a preload valve has to be used (see technical data).

NG32

With pilot oil supply X internal a preload valve has to be used for flows < 180 l/min due to the negative overlap of symbols Z, HZ and V.

With pilot oil supply X internal sufficient flow needs to be ensured due to the negative overlap of symbols C, HC, F, G, H, P and T (for determination of the required flow, see “Preload valve” characteristic curves. If the required flow is not reached, a preload valve has to be used (see technical data).

Symbols/Circuit diagrams

load error

Electrical connection

load error

Dimensions

load error

Project planning information

load error

Downloads

	Directional spool valves, pilot-operated, with electro-hydraulic actuation Data Sheet \| RE24751-XE \| 2020-12-01 \| English, United States \| PDF \| 1.1MB Product Groups: Pilot operated Type H-4WEH …XE
	Explosion-protected hydraulic products for industrial and mobile applications Brochure \| R999000373 \| 2017-03-01 \| English \| PDF \| 5.8MB Product Groups: Pumps, CD - single rod cylinder, Proportional, high-response and servo valves, Axial piston pumps, Mobile controls Product overview

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