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BOSCH REXROTH
DBETA-6X/P200G24K31F1M
R901347333
Proportional Pressure Relief Control Valves

Prop.press.valves: DBETA .-6x/

$4,266.00

BOSCH REXROTH

MATERIAL:  R901347333

SUMMARY:  Prop.press.valves: DBETA .-6x/

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General information

Proportional pressure relief valves of type DBETA are used for system pressure limitation. Operation is effected by means of proportional solenoid. The pressure is regulated by the pressure sensor and the valve electronics. Dependent on the electric command value, these valves can be used to steplessly set and adjust the system pressure to be limited. The valves mainly consist of the housing (1), the valve seat (3), the valve poppet (4), the proportional solenoid (2), the integrated electronics (7) and the pressure sensor (8).

Basic principle

The supply voltage and the command value are applied to the connector (6). Dependent on the command value, the electronics convert the input signal into current. The proportional solenoid converts the electric current into mechanical force that acts on the valve poppet (4) via the armature plunger (5). The valve poppet (4) counteracts the hydraulic force in channel P. When the hydraulic force at the valve poppet (4) equals the solenoid force, the set pressure is reached. By increasing/reducing cross-section P to T, the pressure is maintained at the set level. The pressure sensor (8) captures the pressure in channel P and/or B and the integrated electronics (7) regulate the pressure independently of the flow. Connector (6) provides the pressure in channel P and/or B as an analog actual value (0 to 10 V and/or 4 to 20 mA). If the command value is zero, the control electronics only applies the minimum control current to the proportional solenoid (2) and the minimum set pressure is applied. With the DIL switch (9) the integrated pressure controller can be adjusted to various applications.

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

01

02

03

04

05

06

07

08

09

DBETA

6X

/

P

G24

K31

*

01

Proportional pressure relief valve, pressure-controlled with integrated electronics (OBE)

DBETA

02

Component series 60 … 69 (60 … 69: unchanged installation and connection dimensions)

6X

03

Pressure measurement in channel P

P

Maximum set pressure

04

Up to 50 bar

50

Up to 100 bar

100

Up to 200 bar

200

Up to 350 bar

350

Up to 500 bar (only possible in version "M")

500

Supply voltage of the integrated electronics (OBE)

05

Direct voltage 24 V

G24

Electrical connection

06

Connector DIN EN 175201-804

K31

Electrical interface

07

Command value 0 … 10 V

A1

Command value 4 to 20 mA

F1

Seal material

08

NBR seals

M

FKM seals

V

Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)

09

Further details in the plain text

*

For applications outside these parameters, please consult us!

general

Type

DBETA

Size

6

Component series

6X

Weight

kg

1.9

Installation position

any

Ambient temperature range

°C

-20 … +60

Sine test according to DIN EN 60068-2-6

10...2000...10 Hz / maximum 10 g / 10 cycles

Noise test according to DIN EN 60068-2-64

20...2000 Hz / 10g RMS / 30 g Peak / 24 h

Shock test according to DIN EN 60068-2-27

15 g / 11 ms

Maximum relative humidity 1)

%

97
1) with 25 to 55°C

hydraulic

Type

DBETA

Maximum operating pressure 1)

Port P

Pressure rating 100 bar

bar

300

Port P

Pressure rating 50 bar

bar

125

Port P, A, B

Pressure ratings 200, 350 and 500 bar

bar

500

Return flow pressure

Port T

ideally at zero pressure to the tank

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

350

Pressure rating 350 bar

bar

500

Minimum set pressure 2)

at a command value of 0

See characteristic curves

Maximum flow 3)

l/min

5

Minimum line volume

cm³

20

Hydraulic fluid

see table

Hydraulic fluid temperature range

FKM seals

°C

-15 … +80

NBR seals

°C

-20 … +80

Viscosity range

mm²/s

20 … 380

preferably

mm²/s

30 … 46

Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 4)

Class 20/18/15 according to ISO 4406 (c)

Hysteresis 5)

%

< 1

Range of inversion 5)

%

< 0.25

Response sensitivity 5)

%

< 0.25

Linearity 5)

%

± 1

Step response

10% → 90% 6)

ms

165

90% → 10% 6)

ms

88
1) The summated pressure of all ports must not exceed 1030 bar, e. g. port P 500 bar + port B 500 bar + port T 30 bar + port A 0 bar = 1030 bar.
2) at command value 0 V or 4 mA
3) Required operating range Q > 0.5 l/min
4) 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.
5) Of the maximum set pressure
6) Line volume < 20 cm3; qV = 0.8 l/min; depending on the system

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Mineral oils and related hydrocarbons

HL, HLP

NBR / FKM

DIN 51524

Bio-degradable   - insoluble in water

HEES

FKM

VDMA 24568

Flame-resistant   - water-free

HFDU

FKM

ISO 12922

Flame-resistant   - containing water

HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620)

NBR

ISO 12922

Important information on hydraulic fluids:

For more information and data on the use of other hydraulic fluids please contact us.

There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature.

Flame-resistant - containing water:
Maximum pressure differential per control edge 210bar, otherwise increased cavitation erosion.
Life cycle as compared to operation with mineral oil HLP 30% to 100%
Maximum fluid temperature 60°C

Bio-degradable: When using hydraulic fluids that are simultaneously zinc-solving, zinc may accumulate (700 mg zinc per pole tube).

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Mineral oils and related hydrocarbons

HL, HLP

NBR / FKM

DIN 51524

Bio-degradable   - insoluble in water

HEES

FKM

VDMA 24568

Flame-resistant   - water-free

HFDU

FKM

ISO 12922

Flame-resistant   - containing water

HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620)

NBR

ISO 12922

Important information on hydraulic fluids:

For more information and data on the use of other hydraulic fluids please contact us.

There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature.

Flame-resistant - containing water:
Maximum pressure differential per control edge 210bar, otherwise increased cavitation erosion.
Life cycle as compared to operation with mineral oil HLP 30% to 100%
Maximum fluid temperature 60°C

Bio-degradable: When using hydraulic fluids that are simultaneously zinc-solving, zinc may accumulate (700 mg zinc per pole tube).

electrical

Type

DBETA

Maximum solenoid current

A

1.6

Duty cycle

%

100

Protection class according to DIN EN 60529

IP65 (with mating connector mounted and locked)

Power supply

V

24

Supply voltage range

V

18 … 36

Current consumption

A

2

Required fuse protection

2 A, time-lag

Command value input

Voltage

V

0 … 10

Current

mA

4 … 10

Actual value output

Voltage

V

0 … 10

Current

mA

4 … 20

(measured with HLP46, ϑOil = 40 ±5 °C)

Pressure in port P dependent on the command value (flow = 0.8 l/min)

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

Minimum set pressure in port P dependent on the flow (command value 0 V and/or 4 mA; return flow pressure = 0 bar)

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

Pressure in port P dependent on the flow (applies to all pressure ratings)

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

Version P

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

Pin assignment

Contact

Assignment interface "A1"

Assignment interface "F1"

Power supply

A

24 VDC (u(t) = 18... 36 V); Imax ≤ 2,0 A

B

0 V

Reference potential actual value

C

Reference potential for contact F;
with Ri (countersink) < 50 kΩ connect (star-like) to ground ⊥ on the control side

Reference contact F

Differential amplifier input (command value)

D

0 ... + 10 V; Re > 100 kΩ

4 ... 20 mA; Re = 100 kΩ

E

Reference potential command value

Actual pressure value

F

0 ... + 10 V actual value; Imax = 5 mA

4 ... 20 mA; load resistance maximum 600 Ω

PE

connected to solenoid and valve housing

Connection cable

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/
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)
2) To comply with the requirements of the EMC directive 2004/108/EC, the metal version mating connector (R900223890) and a screened cable are required.

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. The actual pressure value is captured by the integrated pressure sensor. The pressure command value is processed in the controller and compared to the actual pressure value. The power output stage processes the control output of the controller and controls the solenoid current. The actual pressure value is reported at port F (reference port C). With the DIL switch, the controller characteristics can be adjusted to certain applications (see "DIL switch position” table). For the system analysis, the pressure controller can be deactivated using the DIL switches. This corresponds to the function of a force-controlled pressure relief valve (DBETE).

Block diagram / pin assignment

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

Notice:

If the pressure sensor fails, the valve switches to controlled operation. Port PIN F reports 0 V and/or 4 mA.

Notice:

If the flow changes, the pressure controller is automatically adjusted to these operating conditions. In the first cycles, this may lead to changes in the transition behavior.

DIL switch position

Switch (position)

Function

Examples of application

2

1

off

off

controlled operation, no pressure control

Commissioning / system analysis

off

on

smallest dead volume (from 20 cm3)

Systems with little damping

on

off

pilot-operated, large dead volume

Pilot valve for logic e.g. LC40

on

on

pilot-operated, small dead volume

Pilot valve for logic e. g. LC16, LC25
Remote pump control DRG control

Adjust the switch position of the application before the commissioning. Default setting: both switches to on (pilot-operated, small dead volume)

Dimensions in mm

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

1

Proportional solenoid

2

Valve housing

3

Name plate

4

Identical seal rings for ports A, B, P, and T

5

Integrated electronics (OBE)

6

Mating connector

7

Space required to remove the mating connector

8

Cable fastening

9

DIL switch for adjustment to various line volumes

10

Valve connection surface, porting pattern according to ISO 4401-03-02-0-05
Deviating from the standard:
Channel “A” and “B” not drilled, blind counterbore with sealing (with version "P")
locating pin not included in the scope of delivery

Recommended valve mounting screws (separate order):

4 hexagon socket head cap screws ISO 4762 - M5 x 45 - 10.9-flZn-240h-L

Tightening torque MA = 7 Nm ± 10%; material no. R913000140

Mating connectors for valves with round connector, 6-pole + PE

7P Z31

technical illustration-DBETA-6X/P200G24K31F1M-Prop.press.valves: DBETA .-6x/

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 95328

Data sheet

Spare parts & repair