1/10
Type DBETR
Nominal size 6
Component series 1X
Maximum operating pressure 350 bar
Maximum flow 3 l/min
RE 29166/02.07
Replaces: 08.04
Overview of contents
Contents Page
Features 1
Ordering details
2
Preferred types 2
Symbol 3
Function, section 3
Technical data 4, 5
Electrical connections, plug-in connectors 6
Characteristic curves 7, 8
Unit dimensions 9
Features
K4248-14
– Valve for electrical remote control of pressure
– Direct operated proportional pressure relief valve, of poppet
design
– Proportional solenoid actuation with inductive position
transducer (pressure balanced)
– For subplate mounting:
Porting pattern to ISO 4401-03-02-0-94
Subplates to catalogue sheet RE 45052
(separate order), see page 9
– Electrical closed loop position control of the spring pre-
tension, hence low hysteresis
– Good repeatability
– Valve and electronic control from one source
– Control electronics:
• Analogue amplifier VT-VRPA1-100-1X/ in Eurocard format
(separate order), see page 5
• Analogue amplifier of modular design
VT-MRPA1-100-1X/V0/0 (separate order), see page 5
Proportional pressure relief valve
Features 1
Ordering details
2
Preferred types
2
Symbol
3
Function, section
3
Technical data (for applications outside these parameters, please
consult us!)
4
Technical data (for applications outside these parameters, please
consult us!)
5
Electrical connections, plug-in connectors (in mm) 6
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ± 5
°C and without back pressure) 7
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ± 5
°C and without back pressure) 8
Unit dimensions (in mm) 9
Further preferred types and standards can be
found within the EPS (Standard Price List).
2/10 Bosch Rexroth AG Hydraulics
DBETR RE 29166/02.07
Ordering details
Component series 10 to 19 = 1X
(10 to 19: unchanged installation and connection dimensions)
Pressure stage: Up to 30 bar = 30
Up to 80 bar
= 80
Up to 180 bar
= 180
Up to 230 bar
= 230
Up to 315 bar
= 315
Up to 350 bar
= 350
Control electronics supply voltage
24 V DC
= G24
Further details in clear text
M = NBR seals, suitable for
mineral oil (HL, HLP) to DIN 51524
V = FKM seals
Electrical connections
K4 = Without plug-in connector
with component plug to DIN EN 175301-803
for the proportional solenoid
and GSA20 for the position transducer
Plug-in connector – separate order,
see page 6
DBETR 1X G24 K4
*
Preferred types
Type Material number
DBETR-1X/30G24K4M
R900954438
DBETR-1X/80G24K4M
R900334966
DBETR-1X/180G24K4M R900491698
DBETR-1X/230G24K4M R900370146
DBETR-1X/315G24K4M
R900485944
DBETR-1X/350G24K4M
R900352424
T P
3 8 2
7 6 5 1 4
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
3/10
Function, section
Symbol
Proportional pressure relief valve type DBETR is a remote
control valve. In design terms it is a direct operated pressure
relief valve of poppet design.
This valve regulates pressure in proportion to the electrical
command value.
The valve consists basically of a housing (1), proportional
solenoid (2) with inductive positional transducer (3), valve seat
(4) and valve poppet (5).
Pressure is set by adjusting the command value potentiometer
(0
to 9 V). Adjusting the command value causes tensioning of the
compression spring (2) via the electronic controls and the
proportional solenoid (6). Tensioning of the compression
spring (6), i.e. the position of the spring plate (7), is sensed by
the inductive positional transducer (3). Any deviations from the
command value are corrected by the closed loop
positional control.
The use of this principle eliminates the effect of solenoid
friction.
Advantages: – Low hysteresis
– Good repeatability
If the command value is zero or in the event of a power failure
to the poroportional solenoid or cable breakage at the
positional transducer the lowest possible setting pressure will
be set.
Note!
To ensure optimum valve function bleeding must be carried out
at the commissioning stage:
– Remove item 8,
– Pour pressure fluid into open screw hole at item 8,
– When no further bubbles appear screw in item 8.
– Emptying of tank lines is to be avoided. With the appropriate
installation conditions, a back pressure valve is to be
installed (back pressure approx. 2 bar).
P
T
G
4/10 Bosch Rexroth AG Hydraulics
DBETR RE 29166/02.07
Technical data (for applications outside these parameters, please consult us!)
General
Weight kg 4.0
Installation Preferrably horizontal
Storage temperature range °C – 20 to +80
Ambient temperature range °C – 20 to +50
Hydraulic (measured with HLP46 at 40 °C ± 5 °C)
Operating pressure
– Port P bar to 350
– Port T, with pressure control
bar to 2
–
Without pressure control, T port
bar to 100
Max.
settable pressure
– Pressure stage 30
bar 30
– Pressure stage 80
bar 80
– Pressure stage 180
bar 180
– Pressure stage 230
bar 230
– Pressure stage 315
bar 315
– Pressure stage 350
bar 350
Min. settable pressure
(See p
min
-q
V
-characteristic curves on pages 7 and 8)
Max.
flow
– Pressure stage 30
l/min 3
– Pressure stage 80
l/min 3
– Pressure stage 180 l/min 3
– Pressure stage 230
l/min 3
– Pressure stage 315
l/min 2
– Pressure stage 350 l/min 2
Pressure fluid Mineral oil (HL, HLP) to DIN 51524,
Other pressure fluids on request!
Pressure fluid temperature range °C – 20 to + 80
Max. permissible degree of pressure fluid contamination
Cleanliness class to ISO 4406 (c)
Class 20/18/15
1)
Viscosity range mm
2
/s 15 to 380
Hysteresis % < 1 of max. settable pressure
Repeatability % < 0.5 of max. settable pressure
Linearity % < 1.5 of max. settable pressure
Typical variation % ± 3 of max. settable pressure
Stepped response T
u
+ T
g
(0 to 100 %),
dependent on the system
p
min
– p
max
p
max
– p
min
– Pressure stage 30, 80, 180 ms 100 50
– Pressure stage 230, 315, 350
ms 150 100
1)
The cleanliness class stated for the components must be adhered too in hydrualic systems. Effective
filtration prevents faults from occurring and at the same time increases the component service life.
For the selection of filters see catalogue sheets RE 50070, RE 50076, RE 50081, RE 50086 and
RE 50058.
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
5/10
Technical data (for applications outside these parameters, please consult us!)
Electrical (solenoid)
Supply voltage V 24 DC
Max. power consumption VA 50
Coil resistance – Cold value at 20 °C 10
– Max. warm value
13.9
Duty % 100
Electrical connections With component plug to DIN EN 175301-803
Plug-in connector to DIN EN 175301-803
1)
Schutzart nach EN 60529 IP65 with mounted and fixed plug-in connector
When connecting the electrics, the protective conductor
(PE ) must be connected according to the relevant
regulations.
1)
Separate order, see page 6
Electrical (inductive position transducer)
Coil resistance
– Total resistance of the coils at
20 °C
1 and 2
2 and
T P
3 8 2
7 6 5 1 4
and 1
(see also page 6) Ω 31.5 45.5 31.5
Electrical connections With component plug GSA20
Plug-in connector GM 209N (Pg9) with flat seal
1)
Inductivity mH 6 to 8
Oscillator frequency kHz 2.5
Protection to EN 60529 IP65 with mounted and fixed plug-in connector
Note: For details regarding the environmental simulation test covering EMC (electro-magnetic
compatibility), climate and mechanical loading see RE 29166-U (declaration regarding
environmental compatibility).
Control electronics (separate order)
Amplifier in Eurocard format Analogue VT-VRPA1-100-1X/ to catalogue sheet RE 30118
Amplifier of modular design Analogue VT-MRPA1-100-1X/V0/0 to catalogue sheet RE 30221
30
27,5
30
36
53
27,5
Ø22,5
1
2
Screen
20,8
34
~51
28,6
Ø18
Pg9
Seal
PE
1 2
PE
1
2
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
6/10
Proportional solenoid
Connection at component plug
Plug-in connector to DIN EN 175301-803
Separate order under Material No. R901017011 (plastic version)
Inductive position transducer
Plug-in connector GM 209N (Pg9) with flat seal GM 207-3
Separate order under Material No. R900013674 (plastic version)
Flat seal GM 207-3
Separate order under Material No. R900013675
Electrical connections, plug-in connectors (in mm)
Connection at plug-in connector
To amplifier
0 20 40 60 80 100
3
10
20
30
40
2
1
5
15
25
35
0 0,5
1
1,0 1,5 2,0 2,5 3,0
2
3
4
5
0 20 40 60 80 100
9
50
100
150
200
8
7
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
7/10
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ± 5 °C and without back pressure)
Flow in l/min →
Min. settable pressure in bar →
Pressure stage 30 bar
Pressure stage 80 bar
Pressure stage 180 bar
7 – Flow = 0.5 l/min
8 – Flow = 1.5 l/min
9 – Flow = 3.0 l/min
0 0,5
0,5
1,0 1,5 2,0 2,5 3,0
2,5
1,0
1,5
2,0
Command value in % →
Settable pressure in bar →
Command value in % →
Settable pressure in bar →
Command value in % →
Settable pressure in bar →
Flow in l/min →
Min. settable pressure in bar →
0 0,5
1
1,0 1,5 2,0 2,5 3,0
2
3
4
5
6
7
Flow in l/min →
Min. settable pressure in bar →
Pressure stage 30 bar
Pressure stage 80 bar
Pressure stage 180 bar
4 – Flow = 0.5 l/min
5 – Flow = 1.5 l/min
6 – Flow = 3.0 l/min
1 – Flow = 0.5 l/min
2 – Flow = 1.5 l/min
3 – Flow = 3.0 l/min
0 20 40 60 80 100
50
13
100
150
200
250
300
315
14
0 20 40 60 80 100
10
50
11
12
100
150
200
250
0
50
100
150
200
350
80 100
250
300
604020
16
15
10 0,5
1
2
3
4
7
1,5 2
5
6
0 2,5 3,0
3
4
5
6
7
2
1
2,01,51,00,5
10 0,5
1
2
3
4
7
1,5 2
5
6
8/10 Bosch Rexroth AG Hydraulics
DBETR RE 29166/02.07
Characteristic curves (measured with HLP46, ϑ
oil
= 40 °C ± 5 °C and without back pressure)
10 – Flow = 0.5 l/min
11 – Flow = 1.5 l/min
12 – Flow = 3.0 l/min
Flow in l/min →
Min. settable pressure in bar →
Pressure stage 230 bar
Pressure stage 315 bar
Pressure stage 350 bar
Command value in % →
Settable pressure in bar →
Command value in % →
Settable pressure in bar →Settable pressure in bar →
Flow in l/min →
Min. settable pressure in bar →Min. settable pressure in bar →
Command value in % →
Flow in l/min →
13 – Flow = 1.0 l/min
14 – Flow = 2.0 l/min
15 – Flow = 1.0 l/min
16 – Flow = 2.0 l/min
Pressure stage 230 bar
Pressure stage 315 bar
Pressure stage 350 bar
0,01/100mm
Rzmax 4
20,5
31
43
73
15
86
257
180,5
5.2 9 5.1 2 3 1 10
11
7
6
0,75
P
62
T
Ø10
Ø5,3
8
4
64
T
P
89
16,5
22
A
F4
F3
B
F1
F2
31
31,75
40,5
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
9/10
Unit dimensions (in mm)
1
Valve housing
2
Proportional solenoid with inductive position transducer
3
Name plate
4
Blind hole
5.1
Plug-in connector to DIN EN 175301-803,
separate order, see page 6
5.2
Plug-in connector to GM209 (Pg9) manufacturer
Hirschmann; separate order, see page 6
6
Space required to remove the plug-in connector
7
Identical seal rings for P, T and blind hole
8
Machined valve mounting surface,
location of the ports to ISO 4401-03-02-0-94
Deviations from the standard:
– Locating pin not present
– „A“ and „B“ ports
not drilled
9
Bleed screw
10
Lock nut 27A/F
11
Internal hexagon 8A/F
Required surface quality of
the valve contact face
Subplates to catalogue sheet RE 45052 and valve fixing screws
must be ordered separately.
Subplates: G 341/01 (G1/4)
G 342/01 (G3/8)
Valve fixing screws:
(not included within the scope of supply)
Due to strength (tensile) reasons only use the following
valve fixing screws:
4 S.H.C.S. ISO 4762 - M5 x 50 - 10.9-flZn-240h-L
(friction value 0.08 - 0.14 to VDA 235-102);
Tightening torque M
A
= 7 Nm ± 10%
Separate order, Material No. R913000064.
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
documentation@boschrexroth.de
www.boschrexroth.de
10/10 Bosch Rexroth AG Hydraulics
DBETR RE 29166/02.07
© This document, as well as the data, specifications and other informations
set forth in it, are the exclusive property of Bosch Rexroth AG. Without their
consent it may not be reproduced or given to third parties.
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 given information does not release the user
from the obligation of own judgement and verification. It must be remembered
that our products are subject to a natural process of wear and aging.
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
documentation@boschrexroth.de
www.boschrexroth.de
Hydraulics Bosch Rexroth AG
RE 29166/02.07 DBETR
11/10
© This document, as well as the data, specifications and other informations
set forth in it, are the exclusive property of Bosch Rexroth AG. Without their
consent it may not be reproduced or given to third parties.
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 given information does not release the user
from the obligation of own judgement and verification. It must be remembered
that our products are subject to a natural process of wear and aging.
Notizen
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
documentation@boschrexroth.de
www.boschrexroth.de
12/10 Bosch Rexroth AG Hydraulics
DBETR RE 29166/02.07
© This document, as well as the data, specifications and other informations
set forth in it, are the exclusive property of Bosch Rexroth AG. Without their
consent it may not be reproduced or given to third parties.
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 given information does not release the user
from the obligation of own judgement and verification. It must be remembered
that our products are subject to a natural process of wear and aging.
Notizen