BOSCH REXROTH
R901335400
$2,717.57 USD
- BOSCH REXROTH
- Material:R901335400
- Model:DBEM10-7X/200YG24K4M
Quantity in stock: 0
The Bosch Rexroth DBEM10-7X/200YG24K4M (R901335400) is a sophisticated pilot-operated pressure relief valve designed for hydraulic systems to limit their operating pressure. This valve enables stepless setting of the pressure based on an electrical command value, offering precise control over hydraulic operations. The DBEM10-7X/200YG24K4M consists of a main spool insert housed within the valve body, a sandwich plate valve for maximum pressure limitation, and a proportional pilot control valve that operates in conjunction with the proportional solenoid. The functionality of this model begins with the application of pressure to channel P, which influences the main spool. Control lines fitted with nozzles lead the pressurized fluid to both sides of the main spool and the proportional pilot control valve's poppet. The balance between hydraulic force and solenoid force determines whether the poppet opens or remains closed, thereby controlling oil flow and regulating system pressure. An integrated spring-loaded pressure relief valve serves as a safeguard against excessive pressures beyond set limits. This safety feature ensures reliable operation by releasing excess pressure into the tank when necessary. Users can adjust preset pressures through an adjustment element if required for specific applications. Designed for subplate mounting, this model adheres to ISO porting patterns, facilitating installation and maintenance. It is also capable of being used with threaded connections for versatility in system integration. The DBEM10-7X/200YG24K4M is part of component series X and can withstand a maximum operating pressure up to bar levels specified in its documentation. This Bosch Rexroth valve integrates seamlessly with control electronics (ordered separately) to provide a comprehensive solution for hydraulic system pressure management. It is ideal for applications requiring precise control over operating pressures within hydraulic circuits while ensuring protection against overpressure conditions.
Function, section
Valves of type DBEM are pilot-operated pressure relief valves. They are used to limit the operating pressure in hydraulic systems. These valves can be used for the stepless setting of the pressure to be limited dependent on the electrical command value. The valves basically consist of the housing (1) with main spool insert (3), the sandwich plate valve with maximum pressure limitation (2) and the proportional pilot control valve (11).
Type DBEM...
The pressure applied to channel P acts on the main spool (3). Simultaneously, the pressure at port P is applied to the spring-loaded side of the main spool (3) via the control lines (6, 7) provided with nozzles (4, 5). Via the connecting bore (9), the pressure is simultaneously applied to the poppet (10) of the proportional pilot control valve (11). The hydraulic force at the pilot poppet (10) acts against the command value-dependent force of the proportional solenoid (12). If the hydraulic force exceeds the solenoid force, the pilot poppet is opened (10). The pilot oil can now flow via the control line (13) into port Y (14) and to the tank; thus, a pressure drop results at the main spool (3) over the control lines (6, 7). The connection from port P to T is released. The main spool (3) controls the set operating pressure at port P. As hydraulic protection against inadmissibly high pressures, a spring-loaded pressure relief valve (2) has been integrated. This maximum pressure limitation is pre-set to the relevant pressure rating (see table page 6). In the operating range of the valve, the poppet (15) is held on the valve seat (17) by the spring (16) and is thus closed. If the pressure in the spring chamber of the main spool (3) exceeds the maximum admissible set pressure of the valve, the poppet (15) is pressed against the compression spring (16) and the connection into the spring chamber is opened. Via port Y (14), the pilot oil flows into the tank. Due to the control lines (6, 7), a pressure drop occurs at the main spool (3). The connection from port P to T is released. The main spool (3) controls the set maximum operating pressure in port P. Via the adjustment element (19), the pre-set pressure can be reduced, if necessary. Port Y (14) must be externally piped to the tank. The connection to the tank should be depressurized. Via port X (18), the valve may be unloaded or the maximum pressure may be limited.
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
13 |
||
|
DBE |
M |
‒ |
7X |
/ |
G24 |
K4 |
* |
|
01 |
Proportional pressure relief valve for external control electronics |
DBE |
|
02 |
Maximum pressure relief function |
M 1) |
|
Size |
||
|
03 |
Size 10 |
10 |
|
Size 25 |
20 |
|
|
Size 32 |
30 |
|
|
04 |
Component series |
no code |
|
Threaded connection |
G |
|
|
05 |
Component series 70 ... 79 (70 ... 79: unchanged installation and connection dimensions) |
7X |
|
Pressure rating |
||
|
06 |
Up to 50 bar |
50 |
|
Up to 100 bar |
100 |
|
|
Up to 200 bar |
200 |
|
|
Up to 315 bar |
315 |
|
|
Up to 350 bar |
350 |
|
|
07 |
Pilot oil return, external |
Y |
|
Bleed port X, external pilot oil return |
XY |
|
|
08 |
Direct voltage 24 V |
G24 |
|
09 |
1600 mA coil |
no code |
|
800 mA coil (only possible for DBET-6X (external control electronics) |
-8 2) |
|
|
Electrical connection |
||
|
10 |
Without mating connector; connector DIN EN 175301-803 |
K4 3) |
|
Seal material |
||
|
11 |
NBR seals |
M |
|
FKM seals |
V |
|
|
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
||
|
12 |
Pipe thread according to ISO 228/1 |
no code 4) |
|
UNF thread according to ASME B1.1 |
/12 4) |
|
|
13 |
Further details in the plain text |
* |
|
1) |
The maximum pressure limitation only serves as protection against overpressure in case of an error in the pilot valve (e. g. in case of contamination or over-current). |
|
|
2) |
Replacement for series 3X and series 5X SO1 (comparison see characteristic curve). All specified characteristics (hydraulic and electric) refer to the version with 1600 mA coil. |
|
|
3) |
Mating connectors (separate order) |
|
|
4) |
Only possible with version G |
|
For applications outside these parameters, please consult us!
general
|
Type |
DBEM | DBEMG | DBEM | DBEMG | DBEM | DBEMG | |
|
Size |
10 | 25 | 32 | ||||
|
Component series |
7X | ||||||
|
Installation position |
any | ||||||
|
Earth |
kg |
4.5 | 7 | 5.3 | 6.74 | 6.4 | 6.6 |
|
Storage temperature range |
°C |
-20 … +80 | |||||
|
Ambient temperature range |
°C |
-20 … +70 | |||||
hydraulic
|
Size |
10 | 25 | 32 | ||
|
Maximum operating pressure |
bar |
350 | |||
|
Port P |
bar |
350 | |||
|
Port X |
bar |
350 | |||
|
Port T |
bar |
315 | |||
|
Maximum set pressure |
Pressure rating 50 bar |
bar |
50 | ||
|
Pressure rating 100 bar |
bar |
100 | |||
|
Pressure rating 200 bar |
bar |
200 | |||
|
Pressure rating 315 bar |
bar |
315 | |||
|
Pressure rating 400 bar |
bar |
350 | |||
|
Minimum set pressure |
See characteristic curve | ||||
|
Maximum pressure relief function |
Pressure rating 50 bar 1) |
bar |
75 | ||
|
Pressure rating 100 bar |
bar |
135 | |||
|
Pressure rating 200 bar |
bar |
240 | |||
|
Pressure rating 315 bar |
bar |
350 | |||
|
Pressure rating 350 bar |
bar |
390 | |||
|
Pilot oil volume range |
cm³ |
0.4 … 1 | 0.4 … 1.5 | ||
|
Maximum flow |
l/min |
275 | 550 | 700 | |
|
Hydraulic fluid |
see table | ||||
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | |||
|
Viscosity range |
mm²/s |
15 … 380 | |||
|
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 2) |
Class 20/18/15 according to ISO 4406 (c) | ||||
|
Hysteresis 3) |
% |
≤ 5 | |||
|
Linearity 3) |
% |
± 3.5 | |||
|
Manufacturing tolerance of the command value pressure characteristic curve, related to the hysteresis characteristic curve, pressure increasing 4) |
% |
± 5 | |||
|
Step response 5) |
10% → 90% |
ms |
≈ 100 | ||
|
90% → 10% |
ms |
≈ 100 | |||
| 1) | set at the factory |
| 2) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
| 3) | Of the maximum set pressure |
| 4) | of the maximum set pressure, related to the hysteresis characteristic curve, pressure increasing |
| 5) | measured with standing hydraulic fluid column, 0.2 liters at port A |
|
Hydraulic fluid |
Classification |
Suitable sealing materials |
Standards |
|
Mineral oils and related hydrocarbons |
HL, HLP |
NBR / FKM |
DIN 51524 |
|
Bio-degradable - insoluble in water |
HETG |
NBR / FKM |
VDMA 24568 |
|
HEES |
FKM |
||
|
Bio-degradable - soluble in water |
HEPG |
FKM |
VDMA 24568 |
|
Flame-resistant - water-free |
HFDU, HFDR |
FKM |
ISO 12922 |
|
Flame-resistant - containing water |
HFC |
NBR |
ISO 12922 |
|
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). |
Flame-resistant - containing water Maximum operating pressure of 210 bar Maximum hydraulic fluid temperature 60 °C Expected life cycle as compared to HLP hydraulic oil 30% to 100% |
||
|
Bio-degradable: When using hydraulic fluids that are simultaneously zinc-solving, zinc may accumulate (700 mg zinc per pole tube). |
|||
electrical
|
Type |
DBEM | DBEMG | DBEM | DBEMG | DBEM | DBEMG | |||
|
Minimum solenoid current |
with 1600 mA - coil |
mA |
≤ 100 | ||||||
|
with 800 mA - coil |
mA |
≤ 100 | |||||||
|
Maximum solenoid current |
with 1600 mA - coil |
1760 mA | 1760 A | ||||||
|
with 800 mA - coil |
760 mA | 840 mA | 840 A | ||||||
|
Solenoid coil resistance |
Cold value at 20 °C |
with 1600 mA - coil |
Ω |
5.5 | |||||
|
with 800 mA - coil |
Ω |
20.6 | |||||||
|
Maximum hot value |
with 1600 mA - coil |
Ω |
8.05 | ||||||
|
with 800 mA - coil |
Ω |
33 | |||||||
|
Duty cycle |
% |
100 | |||||||
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure in port P dependent on the command value
| 1) | 1) With valve type DBEM and 3DREM, the manufacturing tolerance at the external amplifier can be changed using the command value attenuator potentiometer "Gw”. The digital amplifier is set using the "Limit” parameter. Here, the control current according to the technical data must not be exceeded. In order to be able to adjust several valves to the same characteristic curve, do not set the pressure higher than the maximum set pressure of the pressure rating with command value 100%. |
Set pressure dependent on the flow
Set pressure dependent on the flow
Minimum set pressure with command value 0
| 1) | The characteristic curves apply for output pressure in T or Y = 0 bar in the entire flow range. Notice: To ensure the minimum set pressure is achieved, the pilot current must not exceed 100 mA. |
Command value pressure characteristic curve; pressure rating 50 bar
Command value pressure characteristic curve; pressure rating 100 bar
Command value pressure characteristic curve; pressure rating 200 bar
Command value pressure characteristic curve; pressure rating 315 bar
Command value pressure characteristic curve; pressure rating 350 bar
Command value pressure characteristic curve; pressure rating 100 bar; with amplifier VT-VSPA1-1
Pressure dependent on the command value / Comparison to series 5X-6X / Pressure rating 315 bar (with amplifier VT-SSPA1-1-1X with 800 mA coil)
Type DBEM...-7X/...XY...
Type DBEM...-7X/...Y...
Connection at mating connector
Connection at connector
DBEM(E) 10
Dimensions in mm
|
1 |
Seal rings for ports P and T |
|
2 |
Seal ring for port X |
|
3 |
Space required to remove the mating connector |
|
4 |
Name plate |
|
5 |
Locating pin |
|
6 |
Maximum pressure relief function |
|
7 |
External pilot oil return, separate and depressurized to the tank |
|
8 |
Mating connector for type DBEM |
|
9 |
Integrated electronics (OBE) |
|
10 |
Mating connector for type DBEME |
|
11 |
Cable fastening |
DBEM(E) 10G
Dimensions in mm
|
1 |
Space required to remove the mating connector |
|
2 |
Name plate |
|
3 |
Maximum pressure relief function |
|
4 |
External pilot oil return, separate and depressurized to the tank |
|
5 |
Mating connector for type DBEM |
|
6 |
Integrated electronics (OBE) |
|
7 |
Mating connector for type DBEME |
|
8 |
Cable fastening |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M12 x 50 - 10.9-flZn-240h-LTightening torque MA = 75 Nm ± 10%; material no. R913000283
DBEM(E) 20
Dimensions in mm
|
1 |
Seal rings for ports P and T |
|
2 |
Seal ring for port X |
|
3 |
Space required to remove the mating connector |
|
4 |
Name plate |
|
5 |
Locating pin |
|
6 |
Maximum pressure relief function |
|
7 |
External pilot oil return, separate and depressurized to the tank |
|
8 |
Mating connector for type DBEM |
|
9 |
Integrated electronics (OBE) |
|
10 |
Mating connector for type DBEME |
|
11 |
Cable fastening |
DBEM(E) 20G
Dimensions in mm
|
1 |
Space required to remove the mating connector |
|
2 |
Name plate |
|
3 |
Maximum pressure relief function |
|
4 |
External pilot oil return, separate and depressurized to the tank |
|
5 |
Mating connector for type DBEM |
|
6 |
Integrated electronics (OBE) |
|
7 |
Mating connector for type DBEME |
|
8 |
Cable fastening |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M16 x 50 - 10.9-flZn-240h-LTightening torque MA = 185 Nm ± 10%; material no. R913000378
DBEM(E) 30
Dimensions in mm
|
1 |
Seal rings for ports P and T |
|
2 |
Seal ring for port X |
|
3 |
Space required to remove the mating connector |
|
4 |
Name plate |
|
5 |
Locating pin |
|
6 |
Maximum pressure relief function |
|
7 |
External pilot oil return, separate and depressurized to the tank |
|
8 |
Mating connector for type DBEM |
|
9 |
Integrated electronics (OBE) |
|
10 |
Mating connector for type DBEME |
|
11 |
Cable fastening |
DBEM(E) 30G
Dimensions in mm
|
1 |
Space required to remove the mating connector |
|
2 |
Name plate |
|
3 |
Maximum pressure relief function |
|
4 |
External pilot oil return, separate and depressurized to the tank |
|
5 |
Mating connector for type DBEM |
|
6 |
Integrated electronics (OBE) |
|
7 |
Mating connector for type DBEME |
|
8 |
Cable fastening |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M18 x 50 - 10.9-flZn-240h-LTightening torque MA = 248 Nm ± 10%; material no. R913031952
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)Data sheet
Spare parts & repair