X
-Series
Nominal pressure: 350 bar
Nominal ow rate
l Pump port: 150 l/min
l Working ports: 80 l/min
with compensator and load holding
function
Load-Sensing Sectional
Control Valve
L
X
-3
EN 5.293.0 / 04.22
1
Table of contents
Product features 2
General information and functional description 2
l Overview 2
Technical data / Related documentation 4
Modular structure 5
Example of block specication and type code 6
Inlet plates 7
l Universal inlet plate UL26 / UL36 7
l LS option valves 8
Working sections 9
l Working sections B3 / L3 / S3 / LS3 9
l Main spool and pressure compensator 10
l LS pressure limitation 14
l Workport valves 15
l Operation units 16
l Spring caps 18
End plates 19
l End plate ER1 / ER16 19
Solenoid valves and coils 20
Connection type, fastening and tie rods 21
Installation, usage and maintenance information 21
Dimensions 22
Type code 25
Ordering examples 27
EN 5.293.0 / 04.22
2
Product features
l Load pressure independent ow control with
- Open Center (OC) system
for xed displacement pump
- Closed Center (CC) system
for variable displacement pump
l Flow-optimized valve design
l Compact size and low weight
l Modular design up to 10 working sections
l Types of operation (with/without hand lever):
- Manual
- Hydraulic
- Electrohydraulic (on/off, proportional)
The LX-3 is a proportional directional control valve according
to the load-sensing principle pre compensated.
The nominal ow rate to the working ports A and B is 80 l/min.
The main spool
2.1
determines the ow direction and
magnitude of ow rate.
Pressure control valves
2.4.3
and
2.4.4
are providing shifting
pressure to the left and right side of the main spool
2.1
to
control its position. The level of electric current determines
the level of pilot pressure and therefore the position of
the main spool.
Adjustable stroke limiters
2.4.1
and
2.4.2
can be set mechanically
to limit the maximum ow rate to the working ports A and B.
The pressure compensator
2.7
keeps the ow rate to
the actuator constant, even if the system pressure varies.
Pressure changes at the pump or working ports A and B
are compensated for each working section individually.
The maximum operating pressure can be adjusted by
LS pressure limitation for working ports A and B separately.
Shock / anti-cavitation valves
2.3.2
protect the working ports
A and B from pressure peaks and cavitation. Anti-cavitation
valves
2.3.1
protect the system from cavitation only.
Shuttle valves are integrated into the working sections
to signal the highest load pressure for the valve stack
to the inlet plate or variable displacement pump.
l Application-specic main spools with adjustable stroke limiter
l Shock/anti-cavitation valves for protection of actuators
l Adjustable load sense pressure limitation
(mechanically) causes
the compensator to block ow to the working
ports A or B independently
l Areas of application:
- Cranes - Forestry
- Lifting platforms - Municipal vehicles
- Drilling machinery - Truck applications
- Construction - Stationary applications
- Agriculture
2.7
Pressure compensator
2.1
Main spool
2.3.1
Workport valve port A (anti-cavitation valve)
2.3.2
Workport valve port B (shock / anti-cavitation valve)
2.4.1
Stroke limiter port A (clockwise rotation)
2.4.2
Stroke limiter port B (counterclockwise rotation)
2.4.3
Pressure control valve port A
2.4.4
Pressure control valve port B
2.1
2.7
2.4.1
2.4.2
2.4.42.4.3
2.3.22.3.1
A B
P
T T
Overview
General information and functional description
EN 5.293.0 / 04.22
3
Overview
1.0
Inlet plate
1.1
Main axis of 3-way ow controller or pump pressure limiter
1.2
Pilot pressure relief valve of main axis 1.1
1.3
Filter element
1.4
Pressure reducing valve for internal pilot oil supply
2.0
Working section
2.1
Main spool
2.2.1
LS pressure limitation port A
2.2.2
LS pressure limitation port B
2.3.1
Workport valve port A
2.3.2
Workport valve port B
2.4
Operation unit
2.4.1
Stroke limiter of main spool port A
2.4.2
Stroke limiter of main spool port B
2.5
Spring cap
2.7
Pressure compensator
2.8
LS shuttle valve
3.0
End plate
Ports
P Pump
MP Pump measuring port
T Tank
LS Load-sensing
A, B Working ports
C Pilot oil supply
(option external oil supply)
Z Pilot drain
MY Pilot pressure measuring port (port B)
2.2.12.3.12.52.0
2.4
2.3.2
2.2.2
1.0
3.0
1.2
2.4.1 2.4.2
Z
C
P
T
LS
Z
TP
LS
MP
Z
C
P
T
LS
BA
MY
BA
B
A
MY
BA
A
B
B
A
MY
2.2.22.2.1
2.3.22.3.12.12.5
2.8
2.7
1.1
1.3
1.4
1.0 2.0 2.4
3.0
1.1
1.2
EN 5.293.0 / 04.22
4
Technical data
General data and operating conditions
No. of working sections: 1 – 10
Installation position: Preferred: Horizontal to the spool axis or vertical
with the operation unit to the top (spring cap to the bottom)
Mass in kg: Inlet plate UL26 / UL36 4.2 (4.5 with LS option valve)
Working section B3 / L3 / S3 / LS3 3.1 / 3.0 / 3.0 / 3.0
Operation unit MHS / HHS / EYHS / ES 0.3 / 0.4 / 0.7 / 0.6
Hand lever 1 / 2 / 3 0.1
End plate ER1 / ER16 1.7 / 2.5
Tie rod for working sections 2 / 4 / 6 / 8 / 10 0.3 / 0.4 / 0.5 / 0.6 / 0.7
Connection type (thread type): BSPP acc. to ISO 1179-1 (SAE on inquiry only)
Ambient temperature range: -20 to + 60 °C
1)
Hydraulic uid temperature range: -20 to + 80 °C
1)
Painting: Standard primer and top coat RAL 9005 on inquiry
Hydraulic data
Nominal ow rate P / A, B 150 l/min / 80 l/min
Nominal pressure 350 bar
Max. operating
pressure at port:
P / A, B 350 bar / 350 bar continuous (420 bar intermittent
3)
)
T 30 bar for external drained tank line Z
10 bar for internal connection Z → T
Z Drained to tank
Max. pilot pressure at port C / X, Y 30 bar
Pilot pressure range 6.0 to 20 bar hydraulic and electrohydraulic operated
Required control Δp at the control valve 17 bar
Hydraulic uid Mineral oil (HL/HLP) acc. to DIN 51524, other hydraulic uids on inquiry
Viscosity range 10 – 400 mm
2
/s
Max. permitted degree of contamination
of the hydraulic uid
20/18/15 acc. to ISO 4406 (c)
Please contact HYDAC Filtration Technology to ensure system cleanliness
Electrical data
Supply voltages 12 V DC / 24 V DC
Solenoid data See chapter “Operation units” and “Solenoid valves and coils”
Connector type and IP protection class
(with mating connector mounted and locked)
AMP Junior Timer, 2-pin, axial / up to IP6K6
2)
Deutsch DT04, 2-pin, axial / up to IPX9K
2)
Ampliers and control devices See Product Catalogue 18.500 – Control Technology for Mobile Machines
1)
Deviation of data on inquiry only
2)
Mating plug-in connectors are not included
3)
Intermittent pressure for max. 1 mio cycles of full LX-3 lifetime cycle
!
The technical data and characteristic curves were determined at a viscosity of 32 mm²/s
Related documentation
Product-specic documentation
Installation and Operating Instructions 5.292.BA1
EN 5.293.0 / 04.22
5
Setup with left hand inlet plate
Modular structure
The LX-3 can be customised to different applications and machines.
The principle sectional design and modular structure consists of an inlet plate, max. 10 working sections and an end plate.
A complete control valve is dened by a type code system.
Type code structure
General LX-3 _ _ / B 0
Connection type B (BSPP)
No. of working sections (01-10)
Inlet plate UL26 / ... / P 1.1
Inlet plate UL26 /... / P
1.2
Inlet plate UL26 /... / F
1.3
Inlet plate UL36 /... / P /...
Working section LS3 / ... 2.1
Working section B3
2.2
Working section L3
. 2.3
Working section S3
. 2.4
Working section LS3
. 2.5
Manual operation MHS
. 2.6
Hydraulic operation HHS
. 2.7
Electrohydraulic operation EYHS, E1YHS
. 2.8
Electrohydraulic operation ES, E1S
. 2.9
Spring cap C1... / C1X ...
End plate ER1 3.1
End plate ER1
3.2
End plate ER16
Note:
Representation can deviate from delivered parts.
2.1
2.2
2.3
2.9
2.5
2.6
2.7
2.8
2.4
3.1
3.2
1.2
1.3
1.1
EN 5.293.0 / 04.22
6
Example of block specications and type code
Example: control valve for hydraulic system with variable displacement pump (CC system)
Type code Control valve specication
Valve type LX-303
LX-3 with 3 working sections
LX-303 / B0 B0
BSPP connection type, valve series 0
Inlet plate UL26
Universal plate for OC and CC systems
with internal pilot oil supply
UL26 / 300 / P 300
Pressure setting set to 300 bar
P
Pump pressure relief valve
for variable displacement pump
Working section 1 B3
Basic section type w/o LS or workport valves
B3 / CS060-060RN / EYHS2D-1 / C1E
CS – RN
- Main spool type CS (closed in neutral position)
- Flow rate at working port A and B 60 l/min
- Pressure compensator with load holding function,
spring type N
EYHS2D-1
- Electrohydraulic operation and measuring port MY
- Hand lever axis and stroke limiter
- 24 V solenoid and connector type Deutsch DT04-2P
- Hand lever type 1
C1E
Spring cap for electrohydraulic operation
Working sections 2 and 3 LS3
Working section with LS and workport valves
LS3 / CR044-044RN / 200 – P / 250 – P / EYHS2D-1 / C1E
CR – RN
- Main spool type CR (unloaded in neutral position)
- Flow rate at working port A and B 44 l/min
- Pressure compensator with load holding function,
spring type N
200 – P
LS pressure limitation port A 200 bar, port B plug screw
250 – P
Shock valve port A 250 bar, port B plug screw
EYHS2D-1
- Electrohydraulic operation and measuring port MY
- Hand lever axis and stroke limiter
- 24 V solenoid and connector type Deutsch DT04-2P
- Hand lever type 1
C1E
Spring cap for electrohydraulic operation
End plate ER1Y
Right hand end plate with internal connection Z → T
with check valve and with external drained tank line
ER1Y
TP
LS
MP
Z
C
P
T
LS
BA
MY
BA
A
B
B
A
MY
BA
A
B
B
A
MY
Z
C
P
T
LS
Z
EN 5.293.0 / 04.22
7
∆p in bar
Q in l/min
Q in l/min
Open Center circulation pressure P → T
0 20 40 60 80 100 120 140 160
0 20 40 60 80 100 120 140 160
30
25
20
15
10
5
0
∆p in bar
Pressure relief function P → T
340
320
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
Characteristic curves (measured at 32 mm²/s)
Universal inlet plate UL26 / UL36
UL26/ _ _ _ /F
TP
LS
MP
Z
C
P
T
LS
UL36/ _ _ _ /F
T
P
LS
MP
Z
C
P
T
LS
C
UL36/ _ _ _ /P
T
P
LS
MP
Z
C
P
T
LS
C
UL26/ _ _ _ /P
TP
LS
MP
Z
C
P
T
LS
UL26/ _ _ _ /F
T
P
LS
MP
Z
C
P
T
LS
UL36/ _ _ _ /F
TP
LS
MP
Z
C
P
T
LS
C
UL36/ _ _ _ /P
TP
LS
MP
Z
C
P
T
LS
C
UL26/ _ _ _ /P
T
P
LS
MP
Z
C
P
T
LS
Type code
UL26 / 250 / F (FH)
UL36 / 300 / P
1 2 3
1
Basic type
U Universal plate for OC and CC systems
L Left hand side
2 / 3 Internal pilot oil supply / external pilot poil supply
6 Port size P / T
2
Pilot pressure relief valve of main axis
_ _ _
Pressure setting in bar,
3-digit, max. 350 bar
3
Logic of main axis
F
3-way ow controller for xed displacement pump
FH
3-way ow controller for higher workport ows A / B
!
Max. ow rates to actuator (workport ows A / B)
for type F and FH are limited by sectional pressure
compensator type R or W.
See table “Selection overview pressure compen-
sator types” in chapter “Main spool and pressure
compensator”.
P
Pump pressure relief valve
for variable displacement pump
UL26 / _ _ _ / F
UL36 / _ _ _ / F
UL26 / _ _ _ / P
UL36 / _ _ _ / P
1
2
3 3
3 3
1
2
3 3
3 3
Flow controller type FH
Flow controller type F
EN 5.293.0 / 04.22
8
UL26/ _ _ _ /F/V _ _
UL36/ _ _ _ /P/V _ _
T
P
LS
MP
Z
C
P
T
LS
C
TP
LS
MP
Z
C
P
T
LS
UL26/ _ _ _ /P/V _ _
TP
LS
MP
Z
C
P
T
LS
UL36/ _ _ _ /F/V _ _
T
P
LS
MP
Z
C
P
T
LS
C
UL26/ _ _ _ /F/V _ _
UL36/ _ _ _ /P/V _ _
TP
LS
MP
Z
C
P
T
LS
C
TP
LS
MP
Z
C
P
T
LS
UL26/ _ _ _ /P/V _ _
T
P
LS
MP
Z
C
P
T
LS
UL36/ _ _ _ /F/V _ _
TP
LS
MP
Z
C
P
T
LS
C
UL26 / _ _ _ / F / V _ _
UL36 / 250 / F / V2A
UL26 / _ _ _ / P / V _ _
UL36 / 300 / P / V1D
LS option valves
Type code
UL26 / 300 / P / V2D
LS option valves for inlet types UL26 and UL36
1)
V_ _
LS unloading
Normally open
(Manual emergency operation)
W_ _
LS unloading
Normally closed
(Manual emergency operation)
Solenoid (supply voltage, connector type)
1_
12 V
2_
24 V
_A
AMP Junior Timer
_D
Deutsch DT04-2P
!
Unloading the LS circuit with the option valves V and
W will not block the ow to the working ports A and B
completely when the main spool is out of neutral position.
Regardless of viscosity or parallel operation, the working
pressure during blocking can be up to 15 bar with inlet
plates for variable displacement pumps (logic P).
When using inlet plates for xed displacement pumps
(logic F / FH), the pressure drop in tank-line can have
higher inuence and must be considered.
Example congurations
UL36 / 250 / F / V2A
l Basic type UL36
l Pressure setting 250 bar
l Logic F for xed displacement pump
l LS option valve type V (normally open)
l 24 V solenoid and connector type AMP Junior Timer
UL36 / 300 / P / V1D
l Basic type UL36
l Pressure setting 300 bar
l Logic P for variable displacement pump
l LS option valve type V (normally open)
l 12 V solenoid and connector type Deutsch DT04-2P
1)
See chapter “Solenoid valves and coils”
EN 5.293.0 / 04.22
9
Working sections B3 / L3 / S3 / LS3
Type code
B3 / CR080-080RN / EYHS2D-1 / C1E
L3 / CR080-080RN / 250-P / EYHS2D-1 / C1E
S3 / CR080-080RN / 300-P / EYHS2D-1 / C1E
LS3 / CR080-080RN / 250-P / 300-P / EYHS2D-1 / C1E
1 2 3 4 5 6
1
Basic type
B3
Basic section type w/o LS pressure limitation
and workport valves
L3 Working section with LS pressure limitation
S3 Working section with workport valves
LS3
Working section with LS pressure limitation
and workport valves
Port size 3 for working ports A / B
2
Main spool and pressure compensator
3
LS pressure limitation
4
Workport valves
5
Operation unit
6
Spring cap
B3 / ...
(0)
(a)
(b)
BA
Z
C
P
T
LS
L3 / ...
B
A
A
B
Z
C
P
T
LS
(0)
(
a)
(
b)
S3 / ...
B
A
B
A
Z
C
P
T
LS
(0)
(
a)
(
b)
LS3 / ...
B
A
A
B
B
A
Z
C
P
T
LS
(0)
(
a)
(
b)
B3 / ... L3 / ... S3 / ... LS3 / ...
3
2
4
5
1
6
EN 5.293.0 / 04.22
10
Main spool and pressure compensator
Type code
Examples
CR 080 - 080 R N
MS 080 - 080 R N
2.1 Basic type of main spool
2.2 Max. ow at port A to actuator in l/min
2.3 Characteristic curve and overlap
2.4 Max. ow at port B to actuator in l/min
2.5 Basic type of sectional pressure compensator
2.6 Pressure compensator spring type
Cylinder as actuator
CS 4/3 directional valve closed in neutral position
CR 4/3 directional valve unloaded in neutral position
CT
4/3 directional valve closed in neutral position
20 bar return orice for A and B → T
to support system stability
CC
4/3 directional valve unloaded in neutral position
20 bar return line orice for port A and B → T
to support system stability
Motor as actuator
MS 4/3 directional valve open in neutral position
P
T
A
B
P
T
A
B
P
T
A
B
P
T
A
B
P
T
A
B
2.1 2.2 2.42.3 2.5 2.6
Basic type of main spool
CS CR
MS
CT CC
(b)
(0)
(a)
(b)
(0)
(a)
!
Other spool types and congurations on inquiry
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
EN 5.293.0 / 04.22
11
∆p in bar
∆p in bar
Q (A/B) in l/min
Q (A/B) in l/min
Differential pressure A/B → T
Differential pressure A/B → T
Characteristic curves (measured at 32 mm²/s)
0 20 40 60 80 100 120 140
20
15
10
5
0
40
30
20
10
0
Nominal control edge size: 07
Standard relief groove size
Pressure drop curves A/B ➞ T of main spools
1
Spool type MS in neutral position
2
Spool type MS max. stroke
3
Spool type CS, CR, CT, CC max. stroke
Pressure drop curves A/B ➞ T of main spools
1
Spool type CR, CC in neutral position
1
1
3
2
0 1 2 3 4 5 6
Main spool and pressure compensator
EN 5.293.0 / 04.22
12
Symmetrical spools
Max. ow rate to actuator in l/min (Port A - Port B) Pressure
compensator
Pressure com-
pensator spring
Type Type Identier
080 - 080 070 - 070 060 - 060 044 - 044 027 - 027 018 - 018 010 - 010 005 - 005 R N None
092 - 092 076 - 076 062 - 062 046 - 046 027 - 027 018 - 018 010 - 010 005 - 005 W N None
Nominal control edge size
07 - 07 06 - 06 05 - 05 04 - 04 03 - 03 02 - 02 01 - 01 00 - 00
Asymmetrical spools
080 - 060 070 - 044 060 - 044 044 - 027 027 - 018 018 - 010 010 - 005 – R N None
092 - 062 076 - 046 062 - 046 046 - 027 027 - 018 018 - 010 010 - 015 – W N None
Nominal control edge size
07 - 05 06 - 04 05 - 04 04 - 03 03 - 02 02 - 01 01 - 00 –
Characteristic curve and overlap
2.3
- Progressive/positive (standard)
Main spool and pressure compensator
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
CR 080 - 080 R N
2.2 2.4 2.5 2.6
Main spool ow range
Characteristic curves for nominal ow rates of main spool (measured at 32 mm²/s)
Example:
Max. ow to the actuator at working port A and B: 50 l/min
1. See table above: nominal control edge size 05 – 05 with standard pressure compensator RN → Q = 60 – 60 l/min
2. Setting to nal target value 50 l/min by stroke limiter
Q (A/B) in l/min
100
90
80
70
60
50
40
30
20
10
0
07
06
05
04
03
02
01
00
12 V: l in mA
24 V: l in mA
Hydraulic in bar
Stroke in mm
300 350 400 450 500 550 600 650 700 750
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1 2 3 4 5 6 7 8
2.1 2.2 2.42.3 2.5 2.6
!
Place directional valve sections
with maximum ow as close as
possible to the inlet plate
600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500
Pressure compensator type WN
Pressure compensator type RN
EN 5.293.0 / 04.22
13
Main spool and pressure compensator
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
CR 080 - 080 R N
Basic types of sectional pressure compensator
R Pressure compensator spool – released
with load holding function (standard type)
!
The load holding function is not
free of leak oil, the hydraulic
schematic / symbol is simplied
The pressure compensator R must always be
indicated in the type code with the corresponding
compensator spring type N.
W Pressure compensator spool – released
without load holding function.
The pressure compensator W must always be
indicated in the type code with the corresponding
compensator spring type N.
Q (A /B) in l/min
100
90
80
70
60
50
40
30
20
10
0
0 50 100 150 200 250 300 350
Pump pressure compensation (measured at 32 mm²/s)
∆p (P – A /B) in bar
2.1 2.2 2.42.3 2.5 2.6
Selection overview pressure compensator types
Choice of sectional pressure compensator type R or W
for ow rate to actuator (workport ow A / B) and 3-way ow
controller type in inlet plate.
Flow rate to actuator
(workport ow A / B)
3-way ow controller type
1)
F FH
≤ 44 l/min R or W R or W
≤ 60 l/min W R or W
≤ 80 l/min
2)
– W
1)
See chapter “Universal inlet plate UL26 / UL36”
2)
Max. ow rate in combination with 3-way ow controller
for xed displacement pump
Pressure compensator type WN
Pressure compensator type RN
EN 5.293.0 / 04.22
14
BA
A
B
B
A
MY
LS pressure limitation
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
250 – P
3.1 3.2
Adjustable LS pressure limitation by blocking the sectional ow
rate to the working ports A and B.
3.2
3.1
Basic type
_ _ _
Pressure setting in bar, 3-digit
Minimum setting: 050 bar
Maximum setting: 320 bar
P Plug screw
3.1 LS pressure limitation port A
3.2 LS pressure limitation port B
p (A/B) in bar
Q (A/B) in l/min
Load pressure compensation / limitation
(measured at 32 mm²/s)
0 40 80 120 160 200 240 280 320
90
80
70
60
50
40
30
20
10
0
!
The max. pressure setting in the inlet plate has to be
min. 20 bar higher than the LS pressure limitation
in the working section.
EN 5.293.0 / 04.22
15
Workport valves
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
300 – P
4.1 4.2
Basic type
_ _ _
Shock/ anti-cavitation valve
Pressure setting in bar, 3-digit (xed)
See table on next page for settings
A
Anti-cavitation valve
P
Plug screw
4.1 Workport valve port A
4.2 Workport valve port B
Fixed shock/anti-cavitation valves protect working ports A and
B against pressure peaks and cavitation. Anti-cavitation valves
protect the system against cavitation only.
!
Shock/anti-cavitation valves are only for reduction of pressure
peaks and should not be used as pressure relief valves.
!
The setting for shock/anti-cavitation valves are xed ex works.
The pressure setting value is dened at a ow rate of 10 l/min.
∆p (A/B) in bar
Q (A/B) in l/min
Shock function A/B → T
Characteristic curves (measured at 32 mm²/s)
0 10 20 30 40 50 60 70 80
360
340
320
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
BA
A
B
B
A
MY
4.1
4.2
!
In case of shock/anti-cavitation valves for all working ports,
the LS pressure relief valve in the inlet plate UL26 /.. / F
(for xed displacement pump) has to be dened
min. 30 bar below the highest shock relief valve setting.
EN 5.293.0 / 04.22
16
Workport valves
Shock / anti-cavitation valve pressure settings (xed)
Settings bar 050 065 080 100 125 140 150 160 175 190 200 210 230 240 250 265 280 300 310 320 350 380
Tolerance range ± bar 5 5 5 5 7 7 7 7 10 10 10 10 10 10 10 12 12 12 12 12 12 15
Max. LS pressure cut-off bar - 050 060 080 105 120 120 130 145 160 170 180 200 210 220 235 250 270 280 290 320 320
(Min./ max. LS pressure limitation setting: 050 /320 bar)
Anti-cavitation function T → A/B
∆p in bar
Characteristic curves (measured at 32 mm²/s)
0 10 20 30 40 50 60 70 80
15
10
5
0
Q (A/B) in l/min
!
The maximum pressure setting for the shock/anti-cavitation
valves depends on the chosen pressure settings for the LS
limitations port A and B. To avoid interaction recommended
values are shown in the following table.
The values listed in the table are calculated according
to the following guidelines:
Shock valve setting p
shock
< 150 bar: p
shock
– p
LS
> 20 bar
Shock valve setting p
shock
≥ 150 bar: p
shock
– p
LS
> 30 bar
Operation units
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
EYHS 2D - 1
5.1 5.2 5.3
5.1 Basic type
5.2 Electrical supply voltage, connector type
5.3 Hand lever
S: Shock/ anti-cavitation valve
A: Anti-cavitation valve
A
S
MHS
HHS EYHS
E1YHS
ES
E1S
(0)
(a)
(b)
(0)
(a)
(b)
MY
(0)
(a)
(b)
YX
(0)
(a)
(b)
(0)
(a)
(b)
Basic types 5.1
MHS HHS EYHS
E1YHS
ES
E1S
MHS
Unit for manual operation
Hand lever axis and spool stroke limiter
HHS
Unit for hydraulic operation
Hand lever axis and spool stroke limiter
Port X: spool position (a)
Port Y: spool position (b)
EYHS
Unit for electrohydraulic operation proportional
Pilot pressure measuring port MY: spool position (b)
Hand lever axis and spool stroke limiter
E1YHS
Unit for electrohydraulic operation proportional
Dampening orice with diameter 1 mm
Pilot pressure measuring port MY: spool position (b)
Hand lever axis and spool stroke limiter
ES
Unit for electrohydraulic operation proportional
Spool stroke limiter
E1S
Unit for electrohydraulic operation proportional
Dampening orice with diameter 1 mm
Spool stroke limiter
!
Dampened E1 ... units have to be used
for pure on / off actuations
!
For all operation unit types port Z must
always be connected / depressurized to tank
EN 5.293.0 / 04.22
17
Operation units
General
Supply voltage V DC 12 24
Coil resistance
at 20 °C (±5%)
Ω 4.7 20.8
Duty cycle % 100
Connector type and IP protection class
(with mating connector mounted and locked)
AMP Junior Timer,
2-pin, axial
up to IP6K6
2)
Deutsch DT04,
2-pin, axial
up to IPX9K
2)
Protective screen µm 240
- w/o hand lever (n/a)
1 Standard lever
2 Standard lever, short for emergency operation
3 Universal clamp without hand lever
3_ Universal clamp with hand lever (standard length)
Interface of hand lever axis and hand lever:
Hexagon WAF9
!
The hand lever is directly connected to the main spool
and follows the movement of the spool.
A hand lever can only be specied in combination with
a basic operation unit type ... H ...
5.1
.
Hand lever 5.3
Electrical supply voltage, connector type 5.2
1_ 12 V
2_ 24 V
_A AMP Junior Timer
_D Deutsch DT04-2P
!
Electrohydraulic operation can be overrided by
mechanical operation .
The hand lever is directly connected to the main spool
and follows the movement of the spool.
( 0)
( a)
( b)
1 / 2 / 3 / 3_
approx. 23°
19.5°
approx. 23°
Technical data for electrohydraulic pilot valves (on/off and proportional)
Pressure control valve (proportional)
Supply voltage V DC 12 24
Max. control current mA 1,500 750
PWM frequency
(recommended)
1)
Hz 100 ... 150
1)
The PWM frequency is to be optimized depending
on the application
2)
Mating plug-in connectors are not included
!
Standards ISO 13732-1 and ISO 4413 must be observed
in regard to the surface temperatures occurring on the coils.
Port B
Port A
EN 5.293.0 / 04.22
18
Operation units
Spring caps
Standard lever Standard lever, short
(Emergency operation)
Universal clamp
Universal clamp
with hand lever
1 2
31 32
3_
33
3
Left
3x M8x1.25 / 8 deep
Top Right
200
93
57
57
57
214
169.5169.5
Ø 25
Possible hand lever positions: see chapter “Dimensions”
Actuating torque on execution: - Manual: min. 1.5 – 2.0 Nm
- Hydraulic: min. 2.0 – 9.5 Nm
- Electrohydraulic: min. 2.0 – 9.5 Nm
Type code
LS3 / CR080-080RN / 250 – P / 300 – P / EYHS2D-1 / C1E
C1 E
6.1 6.2
6.1
Basic type
C1 Type 1 (standard)
C1X Type 1 with pilot pressure measuring port MX:
spool position (a)
6.2
Main spool spring package
!
The spring package must be specied
according to the operation unit
5.1
.
M Manual operation type MHS
E Hydraulic and electrohydraulic operation type
HHS, EYHS, E1YHS, ES, E1S
C1_ C1X_
(0)
(a)
(b)
MX
(0)
(a)
(b)
C1 _ C1X _
!
Type E has to be used for hydraulic and electrohydraulic
operation units (only one spring type for both operations)
EN 5.293.0 / 04.22
19
End plate ER1 / ER16
Z
C
Z
Z
C
P
T
LS
Z
P
T
LS
Type code
ER1 ...
ER16 ...
1 2
1
Basic type
ER1 End plate, right hand side (standard)
2
Conguration
Y
Internal connection Z → T with check valve
Port Z open
Mainly for electrohydraulic operation units
2.1
Z
Internal connection Z → T with check valve
Port Z with plug screw
Mainly for manual and hydraulic operation units
!
For conguration Z in combination with electro-
hydraulic operation units, the max. permitted
operating pressure at port T is 10 bar.
ER1Y ER1Z
2.1
1
Basic type
ER16
Same as ER1, with additional P/T ports
Port size 6
2
Conguration
Y
Internal connection Z → T with check valve
Port Z open
Mainly for electrohydraulic operation units
2.1
Z
Internal connection Z → T with check valve
Port Z with plug screw
Mainly for manual and hydraulic operation units
2.2
E
External LS signal input
Port LS open
Internal LS unloading with plug screw
!
For conguration Z in combination with electro-
hydraulic operation units, the max. permitted
operating pressure at port T is 10 bar.
ER16Y
ER16Z
ER16YE
LS
P
T
Z
C
P
T
LS
Z
LS
P
T
Z
C
Z
LS
P
T
Z
C
Z
P
T
LS
P
T
LS
Type code
ER16 ... / 0
1
2
3
ER16Y ER16Z ER16YE
2.1
2.2
2.2
EN 5.293.0 / 04.22
20
Solenoid valves and coils
Electrohydraulic pilot valves (on/off and proportional): see chapter “Operation units”
Option valves for inlet plate UL26 / ... / P and UL36 / ... / P
On/Off valves:
With manual emergency operation (push-button)
Valve type V W
Design Poppet valve Poppet valve
Nominal voltage U
N
V DC 12 24 12 24
Nominal current I
N
A 1.50 0.80 2.20 1.10
Min. current I
min
A 1.05 0.56 1.54 0.77
Nominal power P
N
W 18 19 26.5 26.5
Response time On: ms 40 30
Off: ms 60 40
Max. permitted voltage deviation from U
N
% ±15
Duty cycle at 115 % U
N
% 100
Ambient temperature range
2)
°C -20 to +60
Max. permitted coil temperature
3)
°C 180
Insulation class as per EN 60085 H
Integrated free-wheeling diode Yes Yes
Coil length X mm 40 50
Connector type and IP protection class
(with mating connector mounted)
AMP Junior Timer, 2-pin – axial / up to IP6K6
4)
Deutsch DT04, 2-pin – axial / up to IPX9K
4)
Valve body and coil surface protection Zinc-Nickel (ZnNi)
2)
Deviation of data on inquiry only
3)
Standards ISO 13732-1 and ISO 4413 must be observed in regard
to the surface temperatures occurring on the coils
4)
Mating plug-in connectors are not included
AMP Junior Timer, axial Deutsch DT04, axial
Ø36.5 X
XØ36.5
EN 5.293.0 / 04.22
21
Connection type, fastening and tie rods
Type code
LX-3 03 / B 0
1 2 3 4
1
Valve type
2
Specication type
_ _
Complete control valve
No. of working sections (01-10)
0X
Single modules
(inlet plate, working section,
end plate, option block)
3
Connection type
B BSPP acc. to ISO 1179-1 (SAE on inquiry only)
4
Valve series
!
Only use of ttings with deformable seal materials
Connection type B
Countersink
Ø in mm
Inlet plate UL26 P Pump G 3/4 44
UL36 T Tank G 3/4 44
MP Pump measuring port G 1/4 25
LS Load-sensing G 1/4 25
C Pilot oil supply G 1/4 19
Working section B3 A/B Working ports G 1/2 34
L3 X Hydraulic operation port
(spool position a)
G 1/4 25
S3 Y Hydraulic operation port
(spool position b)
G 1/4 25
LS3 MX Pilot pressure measuring port
(spool position a)
G 1/8 17
MY Pilot pressure measuring port
(spool position b)
G 1/8 17
End plate ER1 Z Tank, depressurized G 1/4 25
ER16 LS External Load-Sensing input G 1/4 25
P Pump G 3/4 44
T Tank G 3/4 44
Fastening:
The control valve must be mounted at three xation points without tensioning. see also chapter “Dimensions”
Fastening thread B
Inlet plate UL26
2 x 17 mm deep M8x1.25UL36
End plate ER1
1 x 17 mm deep M8x1.25
ER16
Installation, usage, and maintenance information
Installation, adjustment, maintenance must be done by authorized and trained staff.
The use of this product outside the specied technical limits, use of non specied uids and/or
use of not genuine spare parts will cause the expiration of the warranty.
Fastening screws:
l Minimum screw-in depth: 12 mm
Property class 10.9
Fastening torque Nm 35
±10 %
Tie rod:
M8 tie rod with ange nut WAF 13, M
Z
= 25 ±10 %
!
Only use of genuine LX-3 tie rod kits.
EN 5.293.0 / 04.22
22
Dimensions
All dimensions in mm, subject to change.
Example for control valve with universal inlet plate (see also chapter “Modular structure”)
Connector types: AMP Junior Timer, 2-pin, axial
1.1
Inlet plate UL26 / ... / F
2.1
Working section LS3
2.2
Working section S3
2.3
Working section B3
2.4
Manual operation MHS
2.5
Hydraulic operation HHS
2.6
Electrohydraulic operation EYHS / E1YHS
2.7
Spring cap C1E
2.8
Spring cap C1XE
3.1
End plate ER1Z
LA
LS pressure limitation port A
LB
LS pressure limitation port B
SA
Secondary valves port A
SB
Secondary valves port B
4.0
Type plate
4.1
3 x M10x1.5 – 15 deep for crane gear
(278)
13
40.5
50
80
98
283
66.5
21
136
48
16
12.5
26
20.5
12.5
144 38
48.5
265
45
136
85
13 16
32
48
(92)
Y
X
2.2 2.3 3.1
4.0
1.1
SB LB 2.5 2.6
2.1
Pilot valve
port B
Pilot valve
port A
Stroke limiter port A
(Dimension X for max. stroke: 25)
clockwise rotation for limitation
Stroke limiter port B
(Dimension Y for max. stroke: 13)
counterclockwise rotation for limitation
2.7 2.8
Pilot pressure relief valve
of main axis
4.1 LASA
4.1
4.1
2.4
EN 5.293.0 / 04.22
23
Dimensions
277
45 50144
27
26.5
136
Pilot pressure relief valve
of main axis
12.548
32
16
13
98
80
50
40.5
13(92)
70
19
(312)
(278)
65
21
12,5
48.5
136
66.5
All dimensions in mm, subject to change.
Example for control valve with universal inlet plate (see also chapter “Modular structure”)
Connector types: AMP Junior Timer, 2-pin, axial
1.1
Inlet plate UL26 / ... / P / V2A
1.2
LS option valve V2A
2.1
Working section LS3
2.2
Working section L3
2.3
Working section S3
2.4
Electrohydraulic operation ES / E1S
2.5
Spring cap C1E
3.1
End plate ER16YE
20.5
20
2.32.22.11.1 3.1
2.4
4.0
2.51.2
4.0
Type plate
4.1
3 x M10x1.5 – 15 deep for crane gear
4.1
4.1
4.1
EN 5.293.0 / 04.22
24
Dimensions
All dimensions in mm, subject to change.
Hand lever: neutral positions and max. travel (see also chapter “Operation units”)
Max. travel port A / port BNeutral positions: for all hand lever types 1 – 3:
19.5°
43.5°
79.5°
19.5°
approx. 23°
approx. 23°
L1
18.5 38
50
10010
Shown: Standard lever, short (emergency operation) – Type 2
No. of working sections 1 2 3 4 5 6 7 8 9 10
L1 mm 104.5 152.5 200.5 248.5 296.5 344.5 392.5 440.5 488.5 536.5
Control valve fastening points (3 x M8x1.25 – 17 deep)
The fastening points are equal for all types of inlet and end plates
Port B
Port A
EN 5.293.0 / 04.22
25
Type code
1)
Deviation of data on inquiry only
Structure and sequence: 1. General (control valve always dened from left to right)
2. Inlet plate
3. Working section 1
Working section 2
Working section n
4. End plate
1. General
Valve type: LX-3 03 / B 0
Pos. 1 2 3 4
Pos./designation: Type code: Description/function Comment:
1 Load-sensing valve series LX-3 Load-sensing X-series Size 3
2 No. of working sections
Specication/identication of single modules
1) _ _ 2-digit, 01–10 Max. 10 working sections
0X Inlet plate, working section, end plate or option block
3. Connection thread
B BSPP acc. to ISO 1179-1 (SAE on inquiry only)
4 Valve series 0 Unchanged installation and connection dimensions
2. Inlet plate
UL26 / 250 / F
UL36 / 250 / P / V2D
Pos. 1 2 3 4
Pos. / designation: Type code: Description/function Comment:
1 Basic type
Universal for xed
and variable displacement pump
UL26 Universal Left 2 Internal pilot oil supply 6 port size P/T Port size 6:
Universal for xed
and variable displacement pump
UL36 Universal Left 3 External pilot oil supply 6 port size P/T BSPP: G 3/4
2 Pressure relief valve
_ _ _ Pressure setting in bar, 3-digit (mechanically adjustable) Max. 350 bar
3 Logic of main axis
For basic types UL26 and UL36 only
F Flow controller (3-way) For xed displacement pump
FH Flow controller (3-way) – Higher workport ows A / B For xed displacement pump
P Pump pressure relief valve (pilot-operated) For variable displacement pump
4 LS option valves
Valve type
V _ _ LS unloading Valve type: V Normally open
W _ _ LS unloading Valve type: W Normally closed
Supply voltage DC
1 _ 12 V
2 _ 24 V
Connector type
_ A AMP – Junior Timer, 2-pin, axial
_ D Deutsch – DT04, 2-pin, axial
EN 5.293.0 / 04.22
26
3. Working sections
Type Working section 1 B3 / CR 080 – 080 RN / / EYHS2D - 1
Working section 2 L3 / CS 080 – 080 RN / 250-P / EYHS2D
Working section 3 S3 / CR 080 – 080 RN / 300-P / HHS
Working section 4 LS3 / CR 080 – 080 RN / 250-P / 300-P / MHS - 1
Pos. 1 2 3 4 5 6 7 8
Pos./designation: Type code: Description/function Comment:
1. Basic type
Basic section w/o option valves B3 Basic section 3 port size A/B Port size 3:
Section like B3 with 2 option valves L3 Like B3 with LS pressure limitation valves BSPP: G 1/2
Section like B3 with 2 option valves S3 Like B3 with Shock / anti-cavitation valves
Section like B3 with all option valves LS3 Like B3 with LS pressure limitation and shock/anti-cavitation valves
2 Main spool
CS Cylinder spool Standard Pos. 0: A, B closed
CR Cylinder spool Released Pos. 0: A, B unloaded to T
MS Motor spool Standard Pos. 0: A, B open to T
...
For other types, see chapter
“Main spool and pressure compensator”
3 Max. ow rate to actuator A B
See chapter “Main spool valve
and pressure compensator”
1) _ _ _ - _ _ _ Maximum ow to port A / B in l/min, 3-digit
4 Pressure compensator axis (spool + spring)
RN Pressure compensator spool – released with load holding function (standard type)
WN Pressure compensator spool – released w/o load holding function
5. LS pressure limitation A B
!
For basic types L3 and LS3 only
_ _ _ - _ _ _ Pressure setting for port A / B in bar, 3-digit (mechanically adjustable) Min. 050 bar, max. 320 bar
P Plug screw w/o LS pressure limitation
6 Workport valves A B
!
For basic types S3 and LS3 only
_ _ _ - _ _ _ Shock / anti-cavitation valve for port A / B in bar, 3-digit See chapter “Workport valves”
A Anti-cavitation valve
P Plug screw w/o workport valves
7 Operation units
MHS Manual operation with Hand lever axis and Spool stroke limiter
HHS Hydraulic operation with Hand lever axis and Spool stroke limiter
EYHS
Electrohydraulic operation with MY port, Hand lever axis
and Spool stroke limiter
E1YHS
Electrohydraulic operation dampened with diameter 1 mm orice, MY port,
Hand lever axis and Spool stroke limiter
ES Electrohydraulic operation with Spool stroke limiter
E1S
Electrohydraulic operation dampened with diameter 1 mm orice
and Spool stroke limiter
!
For operation unit E... only
Supply voltage DC
1 _ 12 V
2 _ 24 V
Connector type
_ A AMP – Junior Timer, 2-pin, axial
_ D Deutsch – DT04, 2-pin, axial
8. Hand lever type
Hand lever placed separately
during shipment
!
For operation types n/a No hand lever
Standard lever 1 Standard See chapter “Operation units”
Standard lever, short
2 Standard for emergency operation
Universal clamp without hand lever
3 For application-specic solutions
Universal clamp with standard lever
31 / 32 / 33 Lever orientation: left / top / right
9. Spring caps
Standard for operation unit M... C1M C standard cap 1 version M manual
Standard for operation unit E..., H....
C1E C standard cap 1 version E electrohydraulic / hydraulic Pilot pressure range: 6.0 – 20 bar
Option for operation unit E...
C1XE C standard cap 1 version X measuring port MX E electrohydraulic / hydraulic Pilot pressure range: 6.0 – 20 bar
4. End plate
Type:
ER1
ER16
Y
ZE
/ *
Pos.
1 2 3
Pos./designation: Type code: Description / function Comment
1 Basic type
Standard ER1 End plate Right 1 w/o pilot oil supply
Standard with ports P / T / LS ER16 6 port size P/T
Port size 6: BSPP G3/4
2 Conguration
For all basic types Y Internal connection Z → T with check valve and port Z open
Z Internal connection Z → T with check valve and port Z with plug screw
!
For basic type ER16 only E External LS signal input / internal LS-unloading with plug screw Port LS open
3
* Special, customer-specic information
Type code
1)
Deviation of data on inquiry only
EN 5.293.0 / 04.22
27
Ordering examples
General LX-303/B0
Inlet plate UL26/300/F
Working section 1 LS3/CR044-027RN/250-P/300-A/MHS-1/C1M
Working section 2 S3/CS027-027RN/P-300/HHS-1/C1E
Working section 3 B3/CS027-018RN/EYHS2A-1/C1XE
End plate ER1Z
General LX-303/B0
Inlet plate UL26/300/P/V2A
Working section 1 LS3/CS080-080RN/250-250/300-300/ES2A/C1E
Working section 2 L3/CR060-044RN/P-250/ES2A/C1E
Working section 3 S3/MS027-027RN/350-350/ES2A/C1E
End plate ER16YE
Example for control valve with open center inlet plate for xed displacement pump and standard end plate
(see also chapter “Dimensions”)
Example for control valve with closed center inlet plate and LS option valve
(see also chapter “Dimensions”)
UL26/…/F
UL26/…/P/V2D
TP
LS
MP
LS
P
T
Z
C
P
T
LS
Z
BA
A
B
B
A
Z
C
P
T
LS
BA
B
A
BA
A
B
TP
LS
MP
Z
C
P
T
LS
Z
C
P
T
LS
Z
BA
B
A
YX
BA
A
B
B
A
BAMY
MX
UL26/…/F
UL26/…/P/V2D
T
P
LS
MP
LS
P
T
Z
C
P
T
LS
Z
BA
A
B
B
A
Z
C
P
T
LS
BA
B
A
BA
A
B
TP
LS
MP
Z
C
P
T
LS
Z
C
P
T
LS
Z
BA
B
A
YX
BA
A
B
B
A
BAMY
MX
EN 5.293.0 / 04.22
28
Note
The information in this brochure
relates to the operating conditions
and applications described.
For applications and operating conditions
not described. please contact the relevant
technical department.
Subject to technical and other changes.
Head Ofce Industriegebiet
HYDAC INTERNATIONAL 66280 Sulzbach /Saar
GMBH Germany
Tel.: +49 6897 509-01
Fax: +49 6897 509-300
E-mail: mobilevalves@hydac.com
Internet: www.hydac.com