DBEM30-7X/200YG24K4V
Manufacturer: Bosch Rexroth
Material #: R901363285
Model : DBEM30-7X/200YG24K4V
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth DBEM30-7X/200YG24K4V (R901363285) is a sophisticated pilot-operated pressure relief valve designed to manage and limit operating pressure within hydraulic systems. This valve facilitates the seamless setting of the desired pressure level, which can be adjusted depending on the electrical command value. It is composed of a housing with a main spool insert, a sandwich plate valve for maximum pressure limitation, and a proportional pilot control valve.
The functionality of the DBEM30-7X/200YG24K4V centers around its ability to balance hydraulic force against the force generated by the proportional solenoid. When hydraulic force surpasses that of the solenoid, it triggers the pilot poppet to open, allowing oil flow into port Y and subsequently to the tank. This action creates a pressure drop across control lines, enabling the main spool to regulate the operating pressure at port P.
Additionally, this model includes an integrated spring-loaded pressure relief valve as a safeguard against excessively high pressures. The preset maximum pressure limitation ensures system safety and can be adjusted if necessary through an adjustment element. For proper functioning, port Y must be externally connected to a depressurized tank, while port X offers unloading capabilities or further limits on maximum pressure.
Designed for subplate mounting and threaded connections in accordance with ISO standards, this valve ensures maximum pressure relief functionality. It is important to note that while this model provides comprehensive valve mechanisms and control electronics as part of its package, external control electronics are required and must be ordered separately. The component series X has been engineered to withstand a maximum operating pressure of up to bar.
$2,955.00 USD
More are expected on October 14, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as October 14, 2024 when ordered in
This product is eligible for factory repair.
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.
(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
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