Hydrotech Acquires Isaacs
Hydrotech ecommerce supports the continental US only

BOSCH REXROTH
DBEM10-7X/100YG24-8K4M
R901353020
Proportional Pressure Relief Control Valves

Prop.press.valves: DBE* 10.-7x/

$2,828.00

BOSCH REXROTH

MATERIAL:  R901353020

SUMMARY:  Prop.press.valves: DBE* 10.-7x/

Add to Cart

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.

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/
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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Set pressure dependent on the flow

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Minimum set pressure with command value 0

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/
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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Command value pressure characteristic curve; pressure rating 100 bar

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Command value pressure characteristic curve; pressure rating 200 bar

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Command value pressure characteristic curve; pressure rating 315 bar

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Command value pressure characteristic curve; pressure rating 350 bar

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Command value pressure characteristic curve; pressure rating 100 bar; with amplifier VT-VSPA1-1

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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)

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Type DBEM...-7X/...XY...

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Type DBEM...-7X/...Y...

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Connection at mating connector

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

Connection at connector

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

DBEM(E) 10

Dimensions in mm

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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-L

Tightening torque MA = 75 Nm ± 10%; material no. R913000283

DBEM(E) 20

Dimensions in mm

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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-L

Tightening torque MA = 185 Nm ± 10%; material no. R913000378

DBEM(E) 30

Dimensions in mm

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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-L

Tightening torque MA = 248 Nm ± 10%; material no. R913031952

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

technical illustration-DBEM10-7X/100YG24-8K4M-Prop.press.valves: DBE* 10.-7x/

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