RE 18301-24/10.2022, Bosch Rexroth AG
4/3 and 4/2 Proportional directional valve elements
EDG-PP...
RE 18301-24
Edition: 10.2022
Replaces: 07.12
4/3 and 4/2 Proportional directional valve elements
with LS - Electrohydraulic actuation
RE 18301-24
Edition: 10.2022
General specifi cations
▶ The inlet section can be confi gured for either a fi xed
displacement pump or load-sense variable displacement
pump. When simultaneous machine functions are
actuated, the pre-compensators will automatically adjust
to the highest load pressure via a shuttle arrangement,
making the system circuit independent of variations in
loads and pump pressures. Thanks to modularity
concept, it's possible to combine stacks of fl exible
sections across the entire EDG family; this enables to
build up a valve group that meets specifi c requirements.
Furthermore: compactness, power density and energy
effi ciency thanks to low Dp complete the best in class
performance.
Main Field of Application
▶ Truck mounted applications
▶ Forestry machinery
▶ Forklifts and Telehandler
▶ Municipal vehicles
▶ Cranes
▶ Construction machines
▶ Aerial working platforms
▶ Heavy duty vehicles
▶ Agricultural machines
▶ Size 6
▶ Series 1
▶ Maximum operating pressure:
▶ 350 bar (5000 psi) on pump side
▶ 350 bar (5000 psi) on consumer side
▶ Maximum fl ow at 8 bar bias spring (116 psi):
60 l/min (15.8 gpm)
▶ Ports connections G 3/8 - G 1/2 - SAE8
New Series 1 features:
- Label
- Flange with drain line for VMGLS and combination for
EDG Electrohydraulic actuation
- Body valve zinc plating treatment for higher corrosion
resistance protection up to 500h
Contents
Ordering details 2-3
Functional description 5
Technical data 6
Characteristic curves 7
External dimensions and fi ttings 8
Electric connection 9
EDG-PP...
Component Series 1
Bosch Rexroth AG, RE 18301-24/10.2022
2 EDG-PP... | 4/3 and 4/2 Proportional directional valve elements
Ordering details
Ordering details
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18
EDG-PP-_ _ _-_2-_29999-_ __ _-_ _-____
Family
00 Directional Valve elements EDG Size 6 proportional
EDG
Type
01 Electro - Piloted
P
Configuration
02 Proportional
P
Ports & Connections
03 G 3/8 DIN 3852
G38
G 1/2 DIN 3852
G12
3/4-16 UNF 2-B (SAE8)
S08
Local compensator bias spring
04 4 bar (58 psi)
1
6 bar (87 psi)
2
8 bar (116 psi)
3
Flange confi guration
05 With P-TA-TB-LS-Xa-Xb-X-Y lines
2
Hydraulic connections in neutral
06 P, A, B closed LS to T
B
P closed A, B, LS to T
E
Spool variants
07 4/3 operated both sides a and b
2
Flow rates over valve connection (according to table 1)
08 Flow rate P>A
9
09 Flow rate P>B
9
10 Nominal fl ow rate (A>T)
9
5)
11 Nominal fl ow rate (B>T)
9
5)
Voltage supply 03 01
12 12V DC ● ● OB
24V DC ● ● OC
● = Available – = Not available
Electric connections
1)
13
With coils, with connection DIN EN 175301-803 01
1)
With coils, with connection vertical Amp - Junior 03
Secondary valve types
14 Without secondary valve
00
Double or single full relief valve with Anticavitation
(VMA) or anticavitation only (VUM) or plug
M0
3)
Double or single LS relief valve (VMGLS) or plug
0M
4)
Combination of M0 and 0M options together
MM
Secondary valve confi g. setting:
Full Relief or Anticavitation selection (according to table 2)
15 A>Ta setting @5lpm
_
2)
16 B>Tb setting @5lpm
_
2)
Secondary valve confi g. setting: LS Relief (VMGLS)
(according to table 3)
17 LSA>T setting range @1.5lpm
_
2)
18 LSB>T setting range @1.5lpm
_
2)
1) For mating connectors ordering code see data sheet RE 18325-90.
2) "0" option is the only one available for "without secondary valves"
selection.
3) For fi xed setting relief valve data sheet see Data Sheet RE 18329-11.
For anticavitation valve data sheet see Data Sheet RE 18329-51.
4) See Table 3.
5) Only symmetrical spools available.
RE 18301-24/10.2022, Bosch Rexroth AG
4/3 and 4/2 Proportional directional valve elements | EDG-PP...
Ordering details
3
Ordering details
ABCDEFGHI JK
50
bar
60
bar
70
bar
80
bar
90
bar
100
bar
110
bar
120
bar
130
bar
140
bar
150
bar
725
psi
870
psi
1015
psi
1160
psi
1305
psi
1450
psi
1595
psi
1740
psi
1885
psi
2030
psi
2175
psi
Table 2
Full relief valve confi guration setting
098
Without valve cavity
on both sides
(not drilled)
With valve cavity
plugged (Normally
closed plug)
With anti-cavitation
valve
LMNOPQRSTUVX
160
bar
170
bar
180
bar
190
bar
200
bar
210
bar
220
bar
230
bar
240
bar
250
bar
270
bar
290
bar
2320
psi
2465
psi
2611
psi
2756
psi
2901
psi
3046
psi
3191
psi
3336
psi
3481
psi
3626
psi
3916
psi
4206
psi
Table 1
Notches dimension selection
--> Flow Rate
Local compensator bias spring
4bar 6bar 8bar
9 *
50 l/min 55 l/min 60 l/min
*Note: standard spool types (symmetrical):
9999
Table 3
LS relief valve confi guration setting
Option
selection
Description Standard
setting (bar)
0
without valve cavity -
1
30-90 bar (Setting range) 70
2
80-140 bar (Setting range) 110
3
135-225 bar (Setting range) 180
4
210-310 bar (Setting range) 250
5
290-380 bar (Setting range) 300
9
Normally closed plug R930082023
Note
For pressure higher than 290 bar (4206 psi), contact
factory.
Bosch Rexroth AG, RE 18301-24/10.2022
4 EDG-PP... | 4/3 and 4/2 Proportional directional valve elements
Ordering details
07 - Spool Variants
14 - Secondary valve types
TBTA P
TA
TB
P
A' B'
Y
X
Xa
Xb
LSB
LSA
LS
General hydraulic layout
00
No secondary valves
0M
LS relief valves option
M0
Relief valves with
anticavitation option
M0
Anticavitation
valves option
MM
Combination of
M0 and 0M options
Both meter in and out
B2
TBTA P
A' B'
E2
TBTA P
A' B'
RE 18301-24/10.2022, Bosch Rexroth AG
4/3 and 4/2 Proportional directional valve elements | EDG-PP...
Functional description
5
TBTA P
TA
TB
P
A' B'
Y
X
Xa
Xb
LSB
LSA
LS
Functional description
The EDG pilot operated proportional sectional valves with
pressure compensation control the oil fl ow to actuators.
These elements consist of a stackable housing (1) with a
control spool (2), a piloting module (4), one return spring
(3). The piloting module (4), energized by PWM regulator,
displaces the control spool from its neutral-central position
“0” proportionally to the current received. When the spool
is shifted and the metering notch is open, fl ow delivery
starts and is controlled by a 2 way pressure compensator
(6) (P > A; P > B).
When the pilot module is de-energized, the return spring
pushes the spool back in its neutral-central position.
Load pressure compensation
The pressure compensator (6) keeps the pressure
diff erential on the main spool (2). The fl ow to the
consumers remains constant, despite varying loads. The
highest load pressure on the pump is signaled via the LS
line and the integrated shuttle valve (5).
Port relief valves with anti-cavitation function on A and B
(8) protect the system against pressure peaks and
cavitation. LS relief valves (7), for each consumer port, can
be adjusted according to specifi c application requirements.
1 Housing.
2 Main spool.
3 Return Spring.
4 Piloting module.
5 LS shuttle valve.
6 Compensator spool.
7 LS relief valve (VMGLS)
8 Secondary valve with
anticavitation option.
88
5
6
4
3
77
2
1
78
Bosch Rexroth AG, RE 18301-24/10.2022
6 EDG-PP... | 4/3 and 4/2 Proportional directional valve elements
Technical data
Technical data
General
Valve element
kg (lbs) 2.2 (4.85)
Ambient Temperature °C (°F)
-30...+50 (-22...+122)
Hydraulic
Maximum pressure at P, A and B ports bar (psi) 350 (5000)
Maximum pilot line (X) pressure bar (psi) 50 (725)
Maximum static pressure at T bar (psi)
210 (3050)
Max. regulated fl ow at 8 bar (116 psi)
l/min (gpm)
60 (15.8)
For E schemes symmetrical spool pattern in neutral
position (connection A to T and B to T).
Approx. 2% of the nominal cross-section
Hydraulic fl uid
General properties: it must have physical lubricating
and chemical properties suitable for use in hydraulic
systems.
Mineral oil based hydraulic fl uids HL (DIN 51524 part 1).
Mineral oil based hydraulic fl uids HLP (DIN 51524 part 2).
For use of environmentally acceptable fl uids (vegetable or
polyglycol base) please consult us.
Fluid Temperature °C (°F) -30....+100 (-22....+212) (NBR seals)
Permissible degree of fl uid contamination ISO 4572: β
x
≥75 X=12...15
ISO 4406: class 20/18/15
NAS 1638: class 9
Viscosity range mm
2
/s 20....380 (optimal 30....46)
Electrical
Voltage type PWM 120 Hz
Voltage tolerance (nominal voltage) % -10 .... +10
Insulation class H
Compliance with Low Voltage Directive LVD 73/23/EC (2006/95/EC), 2004/108/EC
Pilot module weight
kg (lbs)
0.400 (0.881)
Voltage V 12 24
Nominal 100% current A
0.98 0.49
Nominal Coil Resistance at 20°C (68°F) Ω
6.9 27.8
Note
For applications with diff erent specifi cations consult us.
* In addition to relief valve pressure setting value.
RE 18301-24/10.2022, Bosch Rexroth AG
4/3 and 4/2 Proportional directional valve elements | EDG-PP...
Characteristic curves
7
Characteristic curves
Characteristic curves Q=Q(I) at 6bar
2-way infl ow controller
Measured with hydraulic fl uid ISO-VG32 at 45° ±5°C
(113° ±9°F); ambient temperature 20°C (68°F).
spool type B/E-9999
0.0 0.1 0.2 0.3 0.4 0.5 [A]
25 50 75 100 125 150 175 200 225 250 275 300 325 350 [bar]
390 781 1171 1562 1952 2343 2733 3124 3514 3905 4295 4686 5076 [psi]
l/min
60
50
40
30
20
10
0
l/min
60
50
40
30
20
10
0
gpm
15.8
13.2
10.6
7.9
5.3
2.6
0
gpm
15.8
13.2
10.6
7.9
5.3
2.6
0
A 100%
Bosch Rexroth AG, RE 18301-24/10.2022
8 EDG-PP... | 4/3 and 4/2 Proportional directional valve elements
External dimensions and fi ttings
Dimensions [mm (inches)]
External dimensions and fi ttings
1 Flange specifications. For tie rod and tightening torque
information see data sheet RE 18301-92.
2 A and B ports.
3 Identification label.
2
3
1
()
()()
()
()
()
()
()
()
()
()
=G38
=S08
=G12
RE 18301-24/10.2022, Bosch Rexroth AG
4/3 and 4/2 Proportional directional valve elements | EDG-PP...
Electric connection
9
Dimensions [mm (inches)]
Electric connection
01 Protection class: IP 65 when connector with seal
is properly screwed down.
03 Protection class: IP 67 with female connector
properly fi tted (see drawing).
10
Bosch Rexroth AG, RE 18301-24/10.2022
Bosch Rexroth Oil Control S.p.A.
Oleodinamica LC Division
Via Artigianale Sedrio, 12
42030 Vezzano sul Crostolo
Reggio Emilia - Italy
Tel. +39 0522 601 801
Fax +39 0522 606 226 / 601 802
compact-hydraulics-cdv@boschrexroth.com
www.boschrexroth.com/compacthydraulics
© This document, as well as the data, specifi cations and other information
set forth in it, are the exclusive property of Bosch Rexroth Oil Control S.p.a..
It may not be reproduced or given to third parties without its consent.
The data specifi ed 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 verifi cation. It must be
remembered that our products are subject to a natural process of wear and
aging.
Subject to change.
EDG-PP... | 4/3 and 4/2 Proportional directional valve elements
Electric connection
