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Series LR

Series LR

3/3-way directly operated servo valves for the flow (LRWD2),
pressure (LRPD2) and position (LRXD2) control
Series LR digital proportional servo valves are direct driven 3/3-way valves with a patented rotating spool system with closed loop control circuit. The electronic board is integrated into the valve's body ready to connect.

Series LR*D2 digital proportional servo valve has been designed to be as compact as possible in order to save space and to be mounted on a DIN-rail.
Thanks to this new digital version, the valve can be configurated through a USB connection according to different requirements.
Series
Accessories
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Power supply 24 V DC +/- 10%, max absorption 1,5 A
Command signal +/- 10 V DC
0-10 V
4-20 mA
Hysteresis 1% FS LRWD2 - 0,2% FS LRPD2
Linearity 1% FS LRWD2 - 0,3% FS LRPD2
Switching time see the following pages
Working temperature from 0 to 50° C
Relative humidity of air max. 90%
Direction of assembly any
Maximum flow see the diagrams
Medium filtered compressed air, unlubricated, according to ISO 8573-1 class 3.4.3, inert gas
Supply pressure -0,9 to 10 bar
Leakage < 1% of maximum flow rate
Electrical connection male connector M12 8 poles
Hardware configuration port micro USB
Full screen
Your configuration
CODING EXAMPLE
L R W D 2 - 3 4 - 1 - A - 00
L SERIES
L = proportional servo valves
R TECHNOLOGY
R = rotating spool
W VERSION
W = flow control
P = pressure control
X = position control
D ELECTRONICS
D = digital
2 MODEL
2 = compact DIN-RAIL
3 FUNCTION
3 = 3/3-way
4 NOMINAL DIAMETER
4 = 4 mm
6 = 6 mm
1 COMMAND SIGNAL (Setpoint)
1 = +/- 10 V
2 = 0 - 10 V
5 = 4 - 20 mA
A INPUT SIGNAL
2 = 0 - 10 V (LRPD2 and LRXD2 only)
4 = 0 - 5V (LRPD2 and LRXD2 only)
5 = 4 - 20mA (LRPD2 and LRXD2 only)

A = interner Encoder (nur LRWD2)
B = 1 bar (internal sensor - LRPD2 only)
D = 10 bar (internal sensor - LRPD2 only)
E = 250 mbar (internal sensor - LRPD2 only)
F = +1/-1 bar (internal sensor - LRPD2 only)
00 CABLE
00 = no cable

2F = straight cable of 2 m
2R = 90° cable of 2 m
5F = straight cable of 5 m
5R = 90° cable of 5 m

Series LR digital proportional servo valves - dimensions



Mod. Control Command/Input signal Sensor/External signal
LRWD2-3*-1-A-00 flow +/- 10 V -
LRWD2-3*-2-A-00 flow 0-10 V -
LRWD2-3*-5-A-00 flow 4..20 mA -
LRPD2-3*-1-2-00 pressure +/- 10 V 0..10 V
LRPD2-3*-2-2-00 pressure 0-10 V 0..10 V
LRPD2-3*-5-2-00 pressure 4..20 mA 0..10 V
LRPD2-3*-1-4-00 pressure +/- 10 V 0 - 5 V
LRPD2-3*-2-4-00 pressure 0-10 V 0 - 5 V
LRPD2-3*-5-4-00 pressure 4..20 mA 0 - 5 V
LRPD2-3*-1-5-00 pressure +/- 10 V 4..20 mA
LRPD2-3*-2-5-00 pressure 0-10 V 4..20 mA
LRPD2-3*-5-5-00 pressure 4..20 mA 4..20 mA
LRPD2-3*-1-B-00 pressure +/- 10 V 1 bar internal
LRPD2-3*-2-B-00 pressure 0-10 V 1 bar internal
LRPD2-3*-5-B-00 pressure 4..20 mA 1 bar internal
LRPD2-3*-1-D-00 pressure +/- 10 V 10 bar internal
LRPD2-3*-2-D-00 pressure 0-10 V 10 bar internal
LRPD2-3*-5-D-00 pressure 4..20 mA 10 bar internal
LRPD2-3*-1-E-00 pressure +/- 10 V 250 mbar internal
LRPD2-3*-2-E-00 pressure 0-10 V 250 mbar internal
LRPD2-3*-5-E-00 pressure 4..20 mA 250 mbar internal
LRPD2-3*-1-F-00 pressure +/- 10 V +1/-1 bar internal
LRPD2-3*-2-F-00 pressure 0-10 V +1/-1 bar internal
LRPD2-3*-5-F-00 pressure 4..20 mA +1/-1 bar internal
LRXD2-3*-1-4-00 position +/- 10 V 0-5 V suitable to work with the 6PF cylinder (see the PNEUMATIC ACTUATION catalogue)
LRXD2-3*-2-4-00 position 0-10 V 0-5 V suitable to work with the 6PF cylinder (see the PNEUMATIC ACTUATION catalogue)
LRXD2-3*-5-4-00 position 4..20 mA 0-5 V suitable to work with the 6PF cylinder (see the PNEUMATIC ACTUATION catalogue)
LRXD2-3*-1-2-00 position +/- 10 V 0-10 V
LRXD2-3*-2-2-00 position 0-10 V 0-10 V
LRXD2-3*-5-2-00 position 4..20 mA 0-10 V
LRXD2-3*-1-5-00 position +/- 10 V 4..20mA
LRXD2-3*-2-5-00 position 0-10 V 4..20mA
LRXD2-3*-5-5-00 position 4..20mA 4..20mA
* to order the complete code, please replace the asterisk with 4 or 6 according to the desired nominal diameter

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