4/3-way servo solenoid directional control valves, pilot operated

4/3-way servo solenoid directional control valves, pilot operated

4/3-way servo solenoid directional
control valves, pilot operated,
with electrical position feedback
and on-board electronics (OBE)
RE 29088/10.10
Replaces: 01.09
1/18
Type 4WRLE 10...35, symbols V/V1
Sizes (NG) 10, 16, 25, 27, 35
Unit series 3X
Maximum working pressure P, A, B 350 bar (NG27: 280 bar)
Nominal flow 40…1000 l/min (Δp = 10 bar)
Type 4WRLE 10...35
List of contents
Features
Contents
Page
Features
1
Ordering data
2
– Pilot operated 4/3-way servo solenoid directional control
valves NG10 to NG35
– Pilot valve NG6, with control piston and sleeve in servo
quality, actuated on one side, 4/4 fail-safe position when
switched off
Symbols
3
Testing and service equipment
3
Function, sectional diagram
4
– Control solenoid with electric position feedback and
on-board electronics (OBE), calibrated at the factory
Control oil supply
5
– Main stage in servo quality with position feedback
Technical data
6 and 7
Electric connection
8
Technical notes on the cable
8
On-board electronics
9 and 10
Characteristic curves
11 and 12
Unit dimensions
13 to 16
For information regarding the available spare parts see:
www.boschrexroth.com/spc
– Flow characteristic
• M = Progressive with fine metering notch
• P = Non-linear curve
• L = Linear
– Electrical connection 6P+PE
Signal input of differential amplifier with interface
A1 ±10 V, or interface F1 4...20 mA (Rsh = 200 Ω)
2/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Ordering data
4WRL
With on-board
electronics
3X G24
M
*
Further information
in plain text
= 10
= 16
= 25
= 27 1)
= 35 2)
Control spool symbols
M=
AB
a
0
A1 =
F1 =
b
PT
Interface for trigger
electronics
Setpoint input ±10 V
Setpoint input 4…20 mA
Electrical connection
without plug-in connector,
with plug to
DIN 43563-AM6
Order plug-in connector separately
B → T: Qv/2
A → T: Qv
Nominal flow rate
at 10 bar valve pressure difference
(5 bar per metering notch)
NG10
40 l/min 3)
55 l/min 4)
70 l/min 3)
85 l/min 4)
NG16
90 l/min 3)
120 l/min 4)
150 l/min 3)
200 l/min 4)
NG25
300 l/min 3)
370 l/min 4)
NG27
430 l/min 1) 4)
NG35
1000 l/min 2) 4)
Seal material
NBR seals,
suitable for mineral
oils (HL, HLP)
to DIN 51524
K0 =
= V, V1
With V1:
P → A: Qv
P → B: Qv/2
K0
=E
Sizes
4/3-way version
E
No desig. =
E=
ET =
T=
= 40
= 55
= 70
= 85
= 90
= 120
= 150
= 200
= 300
= 370
= 430
= 1000
G24 =
3X =
M=
P=
L=
1)
Control oil inlet “x”
control oil return “y”
“x” = external “y” = external
“x” = internal “y” = external
“x” = internal “y” = internal
“x” = external “y” = internal
Power supply of trigger electronics
+24 V DC
Unit series 30 to 39
(installation and connection dimensions unchanged)
Flow characteristic
Progressive with linear fine metering
Non-linear curve, linear (kink at 40 %)
Linear
NG27 is a high-flow version of NG25, ports P, A, B and T have
∅ 32 mm in the main stage. Contrary to standard
ISO 4401-08-08-0-05, ports P, A, B and T may be drilled to
max. ∅ 30 mm in the control block. These valves therefore
offer higher flow rates QA : QB
2) NG35 is a high-flow version of NG32, ports P, A, B and T have
∅ 50 mm in the main stage. Contrary to standard
ISO 4401-10-09-0-05, ports P, A, B and T may be drilled to
max. ∅ 48 mm in the control block. These valves therefore
offer higher flow rates QA : QB
3) Q : Flow characteristic “P”
N
4) Q : Flow characteristic “M” or “L”
N
RE 29088/10.10
4WRLE 10...35
Hydraulics
3/18
Bosch Rexroth AG
Symbols
AB
a 0 b
PT
M: Progressive with fine metering P: Non-linear, linear (40 %)
Q
Q
20%
Ds
20%
Testing and service equipment
– Service case type VT-VETSY-1 with test device, see data sheet 29685
– Measuring adapter 6P+PE type VT-PA-2, see data sheet 30068
Q
40%
40%
L: Linear
Ds
Ds
4/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Function, sectional diagram
Construction
The valve consists of three main assemblies:
– Pilot valve (1) with control spool and sleeve, return springs,
control solenoid and inductive position transducer
– Main stage (2) with centering springs and position feedback
– On-board trigger electronics (3)
3
1 Pilot valve
1
2 Main stage
3 Trigger electronics
2
T
X
A
P
Y
B
Functional description
Power failure
When the control solenoid is not actuated, the control
spool is held by springs in the fail-safe position, and the
main stage spool remains in spring-centered offset position
at 1…6 % of the stroke in the direction P-B/A-T.
In the on-board electronics, the pre-defined setpoint is
compared with the actual value for the position of the main
stage control spool. In the event of an error signal, the
control solenoid is actuated, and the pilot spool is moved
as the magnetic force changes. The flow released through
the control cross-sections causes the main control spool to
move. The stroke/control cross-section of the main control
spool is controlled proportionately to the setpoint. If the input
setpoint is 0 V, the electronics move the main stage control
spool to mid position.
The control oil is conveyed to the pilot valve either internally
via port P or externally via port X. The oil returns to the tank
internally via port T or externally via port Y.
In the event of a power failure or an open circuit, the
on-board electronics cut off the electricity to the control
solenoid and the pilot spool moves to the fail-safe position,
relieving the control oil chambers of the main stage.
The main stage control spool is held by springs in the offset
position.
RE 29088/10.10
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
5/18
Control oil supply
The pilot valve can be supplied both via ports X and Y
(externally) and via the main flow channels P and T.
NG16
NG10, 25, 27, 35
Pv
Tv
X
Y
Tv
Pv
Y
X
T
P
P
Type...–3X...
Symbol in detail
(external control oil inlet and outlet)
G
G
A B
P X
b
a
P T
Type...–3X...E...
a
G
b
T
P
AB
b
a
P T
Main valve
PT
A B
Type...–3X...ET...
0
Y T
G
AB
Y X
G
B
A
Pilot valve
b
a
Y
G
PT
G
G
A B
b
a
P T
Type...–3X...T...
G
G
A B
a
b
P T
No designation =
E=
ET =
T=
“x” = external
“x” = internal
“x” = internal
“x” = external
X
“y” = external
“y” = external
“y” = internal
“y” = internal
Important
Hydraulic symbols are largely derived from the symbols
of the switching valves. 4/3-way servo solenoid directional
control valves (pilot operated) do not have a closed mid
position when switched off! They only perform their function
in an active, closed control loop, even if the pilot valve
features a fail-safe 4th position. See technical data for
details on “switch-off behavior”.
6/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Technical data
General
Construction
Spool type valve, pilot operated
Actuation
Servo solenoid directional control valve NG6 OBE, with position controller
for pilot valve and main stage
Type of mounting
Subplate, mounting hole configuration NG10...35 to ISO 4401-...
Installation position
Optional
Ambient temperature range
°C –20...+50
Weight
kg NG10
Vibration resistance, test condition
8.7
NG16
10.6
NG25
18.4
NG27
18.4
NG35
81
Max. 25 g, shaken in 3 dimensions (24 h)
Hydraulic (measured with HLP 46,
Pressure fluid
oil
= 40 °C ±5 °C)
Hydraulic oil to DIN 51524…535, other fluids after prior consultation
Viscosity range recommended
mm2/s 20...100
max. permitted
mm2/s 10...800
Pressure fluid temperature range
°C –20...+70
Maximum permissible degree
of contamination of pressure fluid
Purity class to ISO 4406 (c)
Class 18/16/13 1)
Flow direction
See symbol
NG10
Nominal flow at
Δp = 5 bar per notch 2)
NG16
l/min 40 55 70 85 90 120 150 200
Ports P, A, B
Max.
working External control oil inlet
pressure Ports P, A, B
Internal control oil inlet
Ports T, X, Y
Min. control oil pressure
in “pilot stage”
bar
350
350
NG25
300
370
350
bar
250
bar
250
bar
10
NG27
NG35
430
1000
280
350
Qmax
l/min
170
450
900
1000
3500
QN pilot valve
l/min
4
12
24
24
40
< 180
< 300
< 500
< 500
< 900
< 1000
< 1000
< 1000
< 6000
32
32
90
Nominal flow of pilot valve
at 100 bar
cm3/min
Nominal flow of main stage
at 100 bar
cm3/min
< 400
< 600
Static/Dynamic
Hysteresis
% < 0.1, scarcely measurable
Manufacturing tolerance for Qmax
% ≦ 10
Response time for signal
change (at X = 100 bar)
0...100 %
25
26
0...10 %
14
15
18
18
40
Response time for signal
change (at X = 10 bar)
0...100 %
85
80
120
120
350
50
30
50
50
150
Switch-off behavior
0...10 %
After electrical switch-off: Pilot valve in fail-safe
Main stage moves to spring-centered “offset position”: 1…6% P-B/A-T
Thermal drift
Zero point displacement < 1 % at ΔT = 40 °C
Zero adjustment
Factory-set ±1 %
1)
The purity classes stated for the components must be complied with in hydraulic systems.
Effective filtration prevents problems and also extends the service life of components.
For a selection of filters, see www.boschrexroth.com/filter.
Δpx
2) Flow rate at a different Δp Q = Q
x
nom •
35
RE 29088/10.10
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
7/18
Technical data
Electric pilot valve NG6, trigger electronics integrated in the valve
Cyclic duration factor
% 100 ED
Degree of protection
IP 65 to EN 60529 and IEC 14434/5
Connection
Plug-in connector 6P+PE, DIN 43563
Power supply
Terminal A:
Terminal B: 0 V
24 V DCnom
min. 21 V DC/max. 40 V DC
Ripple max. 2 V DC
Max. power consumption
40 VA
External fuse
2,5 AF
Input, “Standard” version
Terminal D: UE
Terminal E:
Differential amplifier, Ri = 100 kΩ
0... ±10 V
0V
Input, “mA signal” version
Terminal D: ID–E
Terminal E: ID–E
Burden, Rsh = 200 Ω
4...(12)...20 mA
Current loop ID–E feedback
Max. differential input voltage
at 0 V
D→B
E→B
Test signal, “Standard” version
Terminal F: UTest
Terminal C:
LVDT
0...±10 V
Reference 0 V
Test signal, “mA signal” version
Terminal F: IF–C
Terminal C: IF–C
LVDT signal 4...20 mA at external load 200...500 Ω max.
4...20 mA output
Current loop IF–C feedback
Protective conductor and screen
See pin assignment (CE-compliant installation)
Calibration
Calibrated at the factory, see valve characteristic curve
Electromagnetic compatibility
tested according to
EN 61000-6-2: 2005-08
EN 61000-6-3: 2007-01
}
max. 18 V DC
Version A1: Standard
Supply
Signal
LVDT
signal
24 V =
0... 10 V
0... 10 V
Version F1: mA signal
Logic
1 or 2
LVDT Sign. Stage
10 V
10 V
NG6/10
Supply 24 V =
Signal 4...20 mA
LVDT 4...20 mA
signal
NG6/10
Volt to
mA
Stroke
10 V
Stroke
II sign.
Mainstage
Logic
1 or 2
Stage
II sign.
Mainstage
P-A
P-A
Stroke
P-B
–10 V…0…+10 V
II sign.
DC/DC
LVDT signal: ±10 V
Important
Pilot operated 4/3-way servo solenoid directional control
valves only perform their function in an active closed control
loop and do not have a fail-safe position when switched off.
For this reason, many applications require the use of
“external check valves”, which must be taken into account
during the On/Off switching sequence.
Stroke
P-B
4...12...20 mA
II sign.
DC/DC
LVDT signal: ±10 V
8/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Electric connection
For electrical data, see page 7
3
1
4
APBT
24 V=
2
1
2
3
4
5
6
5
6
Control
Provided by customer
Plug-in connector
Valve
Connecting surface
Provided by Rexroth
Technical notes on the cable
Version:
– Multi-wire cable
– Extra-finely stranded wire
to VDE 0295, Class 6
– Protective conductor, green/yellow
– Cu braided screen
Types:
– e.g. Ölflex-FD 855 CP
(from Lappkabel company)
No. of wires: – Determined by type of valve,
plug types and signal assignment
Cable Ø:
– 0.75 mm2 to 20 m length
1.0 mm2 to 40 m length
Outside Ø: – 9.4...11.8 mm – Pg11
12.7...13.5 mm – Pg16
Note
Voltage supply 24 V DCnom.,
if voltage drops below 18 V DC, rapid shutdown resembling
“Enable OFF” takes place internally.
In addition, with the “mA signal” version:
ID–E ≧ 3 mA – valve is active
ID–E ≦ 2 mA – valve is deactivated.
Electrical signals emitted via the trigger electronics
(e.g. actual values) must not be used to shut down safetyrelevant machine functions!
(See European Standard, “Technical Safety Requirements
for Fluid-Powered Systems and Components – Hydraulics”,
EN 982.)
RE 29088/10.10
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
9/18
On-board electronics
Block diagram/pin assignment
Version A1: UD–E ±10 V
2.5 A F
+UB
+15 V
– 15 V
DC
DC
Differential
amplifier
A
B
C
D
100k
E
100k
F
10k
+24 V= Power supply
0 V Supply zero
Reference zero*
UD–E 0… +
– 10 V Setpoint
0… +
– 10 V Actual value
Logics
Protective conductor
Screen
+UB
–15 V=
1
ref. 0
2
+15 V=
3
Signal
4
+
–
+
–
PD
PID
Main
stage
0… +
– 10 V
* Do not connect to supply zero!
Pilot
stage
Signal
UD–E
0...+10 V
U
U
PT
AB
UD–E
0V
s
s
4/3-way
servo solenoid
directional
control valve
AB
UD–E
0...–10 V
4/3-way servo solenoid
directional control valve
PT
AB
PT
Pin assignment 6P+PE
Version A1: UD–E ±10 V
(Ri = 100 kΩ)
Valve
UB
+24 V =
A
+ 24 V =
0V
B
0V
C
0 V 0 V internal
(reference zero)
10 V (Signal)
Test
UE
0 V (Signal)
D
E
F
Protective
conductor
SL
100 k
Differential
amplifier
100 k
10 k
10 V
LVDT signal
10/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
On-board electronics
Block diagram/pin assignment
Version F1: ID–E 4...12...20 mA
2.5 A F + 24 V =
Power supply
A
B
C
D
Rsh
200 V E
F
4…20 mA
+UB
DC
+15 V
– 15 V
DC
Differential
amplifier
Logics
0 V Supply zero
IF–C
Loop
ID–E 4…20 mA
IF–C 4…20 mA Test
mA
Protective conductor
V
Screen
+UB
–15 V=
1
ref. 0
2
+15 V=
3
Signal
4
+
–
+
–
PD
PID
Pilot stage
Main
stage
0…+–10 V
Signal
ID–E
12...20 mA
U
ID–E
4...–12 mA
AB
PT
AB
PT
ID–E ≦ 2 mA: valve inactive
4/3-way servo solenoid
directional control valve
U
PT
ID–E
12 mA
s
s
4/3-way
servo solenoid
directional
control valve
AB
Pin assignment 6P+PE
Version F1: ID–E 4...12...20 mA
(Rsh = 200 Ω)
Valve
UB
+24 V =
A
0V
B
C
Test
I = 4…20 mA
Rsh = 200 Ω
(max. 500 Ω)
IN
D
OUT
E
F
Protective
conductor
SL
SL
+24 V =
0V
10 V
Rsh = 200 V
4…20 mA
Voltage
LVDT signal
RE 29088/10.10
4WRLE 10...35
Hydraulics
Characteristic curves (measured with HLP 46,
Flow rate – signal function
oil
Bosch Rexroth AG
11/18
= 40 °C ±5 °C)
Q = f (UD–E)
Q = f (ID–E)
Flow characteristic M
Flow characteristic P
Q (%)
100
P-A
B-T(1:1)
80
60
B-T(2:1)
Q (%)
100
Calibrated
±1 %
1%
60
40
40
20
-UD–E (V) -10 -8 -6 -4 -2
20
-UD–E (V) -10 -8 -6 -4 -2
2
-20
4
6
8 10 UD–E (V)
B-T(2:1)
10% QN
2
-20
10% QN
-40
-40
-60
-60
-80
-80
-100
Q (%)
-100
Q (%)
Version
off
2 mA 4
P-A
B-T(1:1)
80
20 ID–E (mA)
12
4
6
8 10 UD–E (V)
Version
off
2 mA 4
20 ID–E (mA)
12
Flow characteristic L
Q (%)
100
80
P-A
B-T(1:1)
60
B-T(2:1)
40
20
-UD–E (V) -10 -8 -6 -4 -2
2
-20
4
6
8 10 UD–E (V)
-40
-60
-80
-100
Q (%)
Version
off
2 mA 4
20 ID–E (mA)
12
D pB
100
Pressure gain
D pA
A (%pP)
80
B
60
40
G
20
G
A B
UD–E (%) –4 –3
a
P T
Y X
b
–2
UE
–1
1
–20
–40
–60
pP
–80
D pB
–100
A (%pP)
2
3
4 UD–E (%)
12/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
Characteristic curves (measured with HLP 46,
RE 29088/10.10
= 40 °C ±5 °C)
oil
Bode diagram
w
1
100%
Amplitude
Phase
20
NG35
A dB
B
pS = 100 bar
w
w
5%
100
%
Amplitude
Phase
20
pS = 100 bar
5%
10
2
0
–2
–4
–6
–8
–10
0%
10
1
200
180
160
140
120
100
80
60
40
20
0
40 60 80 100 200 300 f (Hz)
5%
%
100
2
0
–2
–4
–6
–8
–10
10
200
180
160
140
120
100
80
60
40
20
0
40 60 80 100 200 300 f (Hz)
Amplitude
Phase
NG25/27
A dB
B
w
5%
20
pS = 100 bar
%
100
10
5%
1
200
180
160
140
120
100
80
60
40
20
0
40 60 80 100 200 300 f (Hz)
2
0
–2
–4
–6
–8
–10
100
%
pS = 100 bar
0%
10
2
0
–2
–4
–6
–8
–10
A dB
B
5%
A dB
B
NG16
5%
NG10
5%
0%
10
1
10
Amplitude
Phase
20
200
180
160
140
120
100
80
60
40
20
0
40 60 80 100 200 300 f (Hz)
RE 29088/10.10
4WRLE 10...35
Hydraulics
13/18
Bosch Rexroth AG
Unit dimensions NG10 (dimensions in mm)
1
3
2 9
41
46
197
49
210
30
39
81
ø6,6
105
24
X T
A P B
33
T Y
102
77
8
167
5
8 7
70
6
5
4
0,01/100
Rzmax 4
10
104
Required surface quality
of valve mounting face
72
13
25
F1
A
X
F2
P
B
T
Y
T1
F4
F3
1 Pilot valve
2 O-ring 9.25 x 1.78 (ports P, A, B, T)
3 On-board electronics
4 Main valve
5 Inductive position transducer (main valve)
6 Nameplate
9 Plug-in connector not included in delivery,
see data sheet 08008 (order separately)
10 Machined valve contact surface, mounting hole
configuration according to ISO 4401-05-05-0-05
Deviates from standard:
Ports P, A, B, T, T1 ∅ 10.5 mm
Minimum thread depth: Ferrous metal 1.5 x ∅
Non-ferrous 2 x ∅
Subplates, see data sheet 45055 (order separately)
Valve fastening bolts (order separately)
The following valve fastening bolts are recommended:
4 cheese-head bolts ISO 4762-M6x40-10.9-N67F821 70
(galvanized in accordance with Bosch standard N67F821 70)
7 O-ring 12 x 2 (ports P, A, B, T, T1)
Tightening torque MA = 11+3 Nm
8 O-ring 10 x 2 (ports X, Y)
Material no. 2910151209
14/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Unit dimensions NG16 (dimensions in mm)
1
3
210
46
B
Y
35
34
95
119
A
212
49
17
2 9
ø3
30
3
25
94
150
77
225
302
5
8
7
6
4
Rzmax 4
10
152
0,01/100
26
13
Required surface quality
of valve mounting face
G1
F5
F2
F1
P
9 Plug-in connector not included in delivery,
see data sheet 08008 (order separately)
X
10 Machined valve contact surface, mounting hole
configuration according to ISO 4401-07-07-0-05
96
T
A
F4
G2
B
F6
Y
F3
Deviates from standard:
Ports P, A, B, T ∅ 20 mm
Minimum thread depth: Ferrous metal 1.5 x ∅
Non-ferrous 2 x ∅
Subplates, see data sheet 45057 (order separately)
1 Pilot valve
2 O-ring 9.25 x 1.78 (ports P, A, B, T)
3 On-board electronics
4 Main valve
5 Inductive position transducer (main valve)
Valve fastening bolts (order separately)
The following valve fastening bolts are recommended:
2 cheese-head bolts ISO 4762-M6x45-10.9-N67F821 70
(galvanized in accordance with Bosch standard N67F821 70)
Tightening torque MA = 11+3 Nm
Material no. 2910151211
7 O-ring 23 x 2.5 (ports P, A, B, T)
4 cheese-head bolts ISO 4762-M10x50-10.9-N67F821 70
(galvanized in accordance with Bosch standard N67F821 70)
Tightening torque MA = 50+10 Nm
8 O-ring 9 x 2 (ports X, Y)
Material no. 2910151301
6 Nameplate
RE 29088/10.10
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
15/18
Unit dimensions NG25/27 (dimensions in mm)
1 2 9
3
210
46
B
149
A
43
45
125
X
242
49
64
ø6
6
ø13
18
118
57
190
305
77
382
5
8
7
6
4
10
194
0,01/100
20
Rzmax 4
G1
13
F5
Required surface quality
of valve mounting face
F2
F1
Y
P
118
T
X
F4
A
G2
B
F6
1 Pilot valve
2 O-ring 9.25 x 1.78 (ports P, A, B, T)
3 On-board electronics
4 Main valve
5 Inductive position transducer (main valve)
6 Nameplate
F3
9 Plug-in connector not included in delivery,
see data sheet 08008 (order separately)
10 Machined valve contact surface, mounting hole
configuration according to ISO 4401-08-08-0-05
Deviates from standard:
NG25: Ports P, A, B, T ∅ 25 mm
NG27: Ports P, A, B, T ∅ 32 mm
Minimum thread depth: Ferrous metal 1.5 x ∅
Non-ferrous 2 x ∅
Subplates, see data sheet 45059 (order separately)
Valve fastening bolts (order separately)
The following valve fastening bolts are recommended:
7 O-ring (ports P, A, B, T)
NG25: 28 x 3
NG27: 34.6 x 2.62
6 cheese-head bolts ISO 4762-M12x60-10.9-N67F821 70
(galvanized in accordance with Bosch standard N67F821 70)
Tightening torque NG25 MA = 90+30 Nm,
NG27 MA = 90±15 Nm
8 O-ring 15 x 2.5 (ports X, Y)
Material no. 2910151354
16/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Unit dimensions NG35 (dimensions in mm)
1 2 9
3
210
X
370
29
49
60
B
225
A
ø21
5
60
90
43,2
ø6
77
69
320
458
8
5
200
7
6
4
324
10
45
0,01/100
22
Rzmax 4
F1
F2
F5
G1
Y
P
203
T
Required surface quality
of valve mounting face
A
9 Plug-in connector not included in delivery,
see data sheet 08008 (order separately)
B
X
F4
G2
F6
1 Pilot valve
2 O-ring 9.25 x 1.78 (ports P, A, B, T)
3 On-board electronics
4 Main valve
5 Inductive position transducer (main valve)
F3
10 Machined valve contact surface, mounting hole
configuration according to ISO 4401-10-09-0-05
Deviates from standard:
Ports P, A, B, T ∅ 48 mm
Minimum thread depth: Ferrous metal 1.5 x ∅
Non-ferrous 2 x ∅
Subplates, see data sheet 45060 (order separately)
Valve fastening bolts (order separately)
The following valve fastening bolts are recommended:
7 O-ring 53.57 x 3.53 (ports P, A, B, T)
6 cheese-head bolts ISO 4762-M20x90-10.9-N67F821 70
(galvanized in accordance with Bosch standard N67F821 70)
Tightening torque MA = 450+110 Nm
8 O-ring 15 x 2.5 (ports X, Y)
Material no. 2910151532
6 Nameplate
RE 29088/10.10
Notes
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
17/18
18/18
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Telefon +49 (0) 93 52 / 18-0
Telefax +49 (0) 93 52 / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not release
the user from the obligation of own judgment and verification. It must be
remembered that our products are subject to a natural process of wear and
aging.
RE 29088/10.10
4WRLE 10...35
Hydraulics
Bosch Rexroth AG
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Telefon +49 (0) 93 52 / 18-0
Telefax +49 (0) 93 52 / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not release
the user from the obligation of own judgment and verification. It must be
remembered that our products are subject to a natural process of wear and
aging.
Bosch Rexroth AG
Hydraulics
4WRLE 10...35
RE 29088/10.10
Notes
Bosch Rexroth AG
Hydraulics
Zum Eisengießer 1
97816 Lohr am Main, Germany
Telefon +49 (0) 93 52 / 18-0
Telefax +49 (0) 93 52 / 18-23 58
[email protected]
www.boschrexroth.de
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application
can be derived from our information. The information given does not release
the user from the obligation of own judgment and verification. It must be
remembered that our products are subject to a natural process of wear and
aging.