PROPORTIONAL PRESSURE RELIEF VALVE DBE6-2X/50G24K4V
Manufacturer: Bosch Rexroth
Material #: R901358691
Model : DBE6-2X/50G24K4V
***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 DBE6-2X/50G24K4V (R901358691) is a pilot-operated proportional pressure relief valve designed for efficient system pressure limitation. This high-performance hydraulic valve is capable of providing reliable pressure control by converting an electric current into mechanical force through its proportional solenoid, allowing for stepless setting of the system pressure based on the electric command value.
The DBE6-2X/50G24K4V valve features a two-stage build: a pilot control stage including the proportional solenoid, poppet, and valve seat, and a main stage consisting of the housing and main spool insert assembly. The precision-engineered components work in unison to maintain the desired pressure levels within hydraulic systems.
This model supports subplate mounting and conforms to NFPA T3.5.1 R2-2002 D03 and ISO 4401 porting patterns, ensuring compatibility with industry standards for ease of integration into various applications. The valve operates with a supply voltage of 24 VDC and includes an electrical connection with a connector pole + PE according to EN 175301-803 A.
With its robust design, the DBE6-2X/50G24K4V can handle a maximum operating pressure of 350 bar and allows for a maximum flow rate of 50 l/min. It also features FKM seals suitable for various hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR types.
This Bosch Rexroth valve is ideal for applications requiring precise pressure relief functions with external electronic actuation. Its advanced design ensures minimal hysteresis and excellent dynamic response under varying load conditions. Users benefit from its linear pressure-command value characteristic curve which facilitates predictable system behavior.
For optimal operation within hydraulic circuits, it's recommended that tank lines are prevented from running empty by installing a preload valve if necessary to maintain preload pressure at approximately 5 bar.
$2,356.00 USD
More are expected on May 26, 2025
Status: This product is temporarily out of stock.
Qty: Delivered as early as May 26, 2025 when ordered in
This product is eligible for factory repair.
Size 6, P → T, electrical with external electronics, 24 V DC
Industrial hydraulic valve in a high performance range. Reliable limitation of the pressure to the command value signal.
Unpacked Weight: 2.020 kg
Pilot-operated proportional valve for system pressure limitation Proportional solenoid operation Proportional solenoid with rotatable and detachable coil For subplate mounting or sandwich plate design: Porting pattern according to ISO 4401-03-02-05 and DIN24340 Valve and control electronics from a single source External control electronics for types DBE and ZDBE Linear pressure/command value characteristic curve Types DBEE and ZDBEE with integrated electronics (OBE)
The pilot-operated proportional pressure relief valves of type (Z)DBE are actuated by a proportional solenoid. The valves are used for system pressure limitation. Dependent on the electric command value, these valves can be used to steplessly set the system pressure to be limited. These valves basically consist of a pilot control stage and a main stage. The pilot control component consists of a proportional solenoid (1), the poppet (2), and the valve seat (3). The main stage consists of the housing (4) and the main spool insert assembly (5). The proportional solenoid converts the electric current proportionally into mechanical force. An increase of the current results in a correspondingly higher solenoid force. The system pressure is set in a command value-dependent form via the proportional solenoid (1). The pressure in channel P applied by the system acts on the right side of the main spool insert assembly (5). Simultaneously, the system pressure acts via the control line (7) which is equipped with the nozzle (6) on the spring-loaded side of the spool. Via the valve seat in the pilot line (3), the pressure at the poppet (2) in the spring chamber acts against the force of the proportional solenoid (1). When the pressure has reached the pre-set value, the poppet (3) is lifted off the seat. The pilot oil can now (depending on the version) drain externally via port A (Y) or internally into the tank, which results in a limitation of the pressure on the spring-loaded side of the main spool (5). If the system pressure continues to rise slightly, the higher pressure on the right hand side of the spool will push the spool to the left into the control position P to T. At a minimum control current (corresponds to a command value of zero), the minimum set pressure will be set.
Notice!
The tank lines should be prevented from running empty. With corresponding installation conditions, a preload valve (preload pressure approx. 1 bar) must be installed.
Type DBE
The pilot-operated proportional pressure relief valves of type (Z)DBEE are actuated by a proportional solenoid. The valves are used for system pressure limitation. Dependent on the electric command value, these valves can be used to steplessly set the system pressure to be limited. These valves basically consist of a pilot control stage and a main stage. The pilot control component consists of a proportional solenoid (1), the poppet (2), and the valve seat (3). On the proportional solenoid, there is moreover a housing (10) with the control electronics. Supply and command value voltage are applied at the connector (11). At the factory, the command value pressure characteristic curve is adjusted with little manufacturing tolerance. The main stage consists of the housing (4) and the main spool insert assembly (5). The proportional solenoid converts the electric current proportionally into mechanical force. An increase of the current results in a correspondingly higher solenoid force. The system pressure is set in a command value-dependent form via the proportional solenoid (1). The pressure in channel P applied by the system acts on the right side of the main spool insert assembly (5). Simultaneously, the system pressure acts via the control line (7) which is equipped with the nozzle (6) on the spring-loaded side of the spool. Via the valve seat in the pilot line (3), the pressure at the poppet (2) in the spring chamber acts against the force of the proportional solenoid (1). When the pressure has reached the pre-set value, the poppet (3) is lifted off the seat. The pilot oil can now (depending on the version) drain externally via port A (Y) or internally into the tank, which results in a limitation of the pressure on the spring-loaded side of the main spool (5). If the system pressure continues to rise slightly, the higher pressure on the right hand side of the spool will push the spool to the left into the control position P to T. At a minimum control current (corresponds to a command value of zero), the minimum set pressure will be set.
Notice!
The tank lines should be prevented from running empty. With corresponding installation conditions, a preload valve (preload pressure approx. 1 bar) must be installed.
Type DBEE
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
13 |
14 |
||
|
DBE |
6 |
2 |
- |
2X |
/ |
G24 |
* |
|
01 |
Subplate mounting |
no code |
|
Sandwich plate |
Z |
|
|
02 |
Proportional pressure relief valve |
DBE |
|
03 |
For external analog electronics |
no code |
|
With integrated electronics (OBE) |
E |
|
|
04 |
Size 6 |
6 |
|
05 |
Subplate mounting |
no code |
|
Pressure limitation in channel P |
VP |
|
|
06 |
Preferred position of mating connector 
The mating connector can be brought to the desired position when the nut was loosened |
2 |
|
07 |
Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions) - Size 6 |
2X |
|
Maximum set pressure |
||
|
08 |
Pressure rating 25 bar |
25 |
|
Pressure rating 50 bar |
50 |
|
|
Pressure rating 100 bar |
100 |
|
|
Pressure rating 200 bar |
200 |
|
|
Pressure rating 315 bar |
315 |
|
|
Pressure rating 350 bar |
350 |
|
|
09 |
Pilot oil return, internal |
no code 1) |
|
Pilot oil return, external |
Y 2) |
|
|
Power supply |
||
|
10 |
Direct voltage 24 V |
G24 |
|
Electrical connection types DBE and ZDBE |
||
|
11 |
Without mating connector, with connector according to DIN EN 175301-803, separate order |
K4 |
|
Electrical connection types DBEE and ZDBEE |
||
|
11 |
Without mating connector, with connector according to DIN EN 175301-804, separate order |
K31 |
|
Electronics interface types DBEE and ZDBEE |
||
|
12 |
Command value 0 … 10 V |
A1 |
|
Command value 4 to 20 mA |
F1 |
|
|
Seal material |
||
|
13 |
NBR seals |
M |
|
FKM seals |
V |
|
|
14 |
Further details in the plain text |
* |
|
1) |
Recommendation: Subplate mounting up to qvmax = 15 l/min |
|
|
2) |
Only possible with subplate mounting |
|
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure in port P dependent on the command value (QV = 5 l/min)
(Z)DBE
Pressure in port P dependent on the command value (QV = 5 l/min)
(Z)DBEE
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 25 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 50 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 100 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 200 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 315 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 350 bar ("Y" external and internal)
Pressure in port P or P2 dependent on the command value (Qv = 5 l/min); pressure rating 200 bar (with VT-SSPA1) plug-in amplifier
Pressure in port P or P2 dependent on the flow Qv; pressure rating 25 bar
Pressure in port P or P2 dependent on the flow Qv; pressure rating 50 bar
Pressure in port P or P2 dependent on the flow Qv; pressure rating 100 bar
Pressure in port P or P2 dependent on the flow Qv; pressure rating 200 bar
Pressure in port P or P2 dependent on the flow Qv; pressure rating 315 bar
Pressure in port P or P2 dependent on the flow Qv; pressure rating 350 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 25 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 50 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 100 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 200 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 315 bar
Minimum set pressure in port P or P2 at command value 0; pressure rating 350 bar
DBE 6
DBE 6...Y...
DBEE 6
DBEE 6...Y...
ZDBE 6 VP
ZDBE 6 VP
ZDBEE 6 VP
Type (Z)DBE
Connection at the connector
Connection at mating connector
Type (Z)DBEE
|
Pin assignment |
Contact |
Assignment interface "A1" |
Assignment interface "F1" |
|
Power supply |
A |
24 VDC (u(t) = 21 ... 35 V); Imax ≤ 1,5 A |
|
|
B |
0 V |
||
|
Reference potential actual value |
C |
Reference contact F; 0 V |
Reference contact F; 0 V |
|
Differential amplifier input (command value) |
D |
0 to 1.6 V actual value (1 mV ≙ 1 mA); |
4 ... 20 mA; Re = 100 kΩ |
|
E |
Reference potential command value |
||
|
Measuring output (actual value) |
F |
0 to 1.6 V actual value (1 mV ≙ 1 mA); |
|
|
PE |
connected to solenoid and valve housing |
||
Connection cable
| 1) | Connection cable:- Recommendation 6-wire, 0.75 or 1mm2 plus protective earthing conductor and screening- Connect screening to PE on supply side only- Maximum admissible length 100 m The minimum supply voltage at the power supply unit depends on the length of the supply line (see diagram) |
Integrated electronics (OBE)
Function
The electronics are supplied with voltage via ports A and B. The command value is applied to the differential amplifier ports D and E.Via the characteristic curve generator, the command value solenoid current characteristic curve is adjusted to the valve so that non-linearities in the hydraulic system are compensated and thus, a linear command value pressure characteristic curve is created.The current controller controls the solenoid current independently of the solenoid coil resistance.The power stage of the electronics for controlling the proportional solenoid is a chopper amplifier with a clock frequency of approx. 180 Hz to 400 Hz. The output signal is pulse-width modulated (PWM). For checking the solenoid current, a voltage can be measured at the connector between pin F(+) and pin C(–) which is proportional to the solenoid current. 1 mV corresponds to 1 mA solenoid current.
Block diagram / pin assignment
Type DBE(E)
|
1 |
Valve housing |
|
2 |
Proportional solenoid |
|
3 |
Name plate |
|
4 |
Identical seal rings for ports A, B, P, and T |
|
5 |
With version Y, external pilot oil return via port A (Y) |
|
6 |
mating connector according to DIN EN 175301-803 |
|
7 |
Mating connector according to DIN EN 175201-804 |
|
8 |
Space required to remove the mating connector |
|
9 |
Integrated electronics (OBE) |
|
10 |
Space required to remove the mating connector |
|
11 |
Cable fastening |
|
12 |
Machined valve contact surface; porting pattern according to DIN 24340 (without locating hole) and ISO 4401-03-02-0-05 (with locating hole) |
|
13 |
O-ring and plastic nut wrench size 32 for coil fixation.The nut can be loosened by rotating it counterclockwise (1 turn). The solenoid coil can then be rotated to the required position before fixing it again by tightening the nut.Tightening torque 4 +1 Nm |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M5 x 50 - 10.9-flZn-240h-LTightening torque MA = 7 Nm ± 10%
Type ZDBE(E)
|
1 |
Valve housing |
|
2 |
Proportional solenoid |
|
3 |
Name plate |
|
4 |
Identical seal rings for ports A, B, P, and T |
|
6 |
mating connector according to DIN EN 175301-803 |
|
7 |
Mating connector according to DIN EN 175201-804 |
|
8 |
Space required to remove the mating connector |
|
9 |
Integrated electronics (OBE) |
|
10 |
Space required to remove the mating connector |
|
11 |
Cable fastening |
|
12 |
Machined valve contact surface; porting pattern according to DIN 24340 (without locating hole) and ISO 4401-03-02-0-05 (with locating hole) |
|
13 |
O-ring and plastic nut wrench size 32 for coil fixation.The nut can be loosened by rotating it counterclockwise (1 turn). The solenoid coil can then be rotated to the required position before fixing it again by tightening the nut.Tightening torque 4 +1 Nm |
Recommended valve mounting screws (separate order):
4 hexagon socket head cap screws ISO 4762 - M5 - 10.9-flZn-240h-LTightening torqueMA = 7 Nm ± 10%
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
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
Mating connectors for valves with round connector, 6-pole + PE
7P Z31
For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328Data sheet
Spare parts & repair
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