■ Proportional Electro-Hydraulic Relieving and Reducing Valves
This valve is derived by combining a small, high-performance 1/8
proportional electro-hydraulic pilot relief valve with a relieving andreducing valve.
With this valve, it is possible to regulate the system pressure inproportion to the input current.
Incorporating a relief mechanism, this valve provides a good response
speed and the pressure decreases even if the load is large. Note that
this valve is used in conjunction with the applicable power amplifier.

■ Specifications
Descriptions

Model Numbers

ERBG-06ERBG-10

Max. Operating Pres.

MPa

24.5

24.5

Max. FlowL/min100250Max. Relieving Flow

L/min3515

Secondary Pres. Adj. Range

MPa

Rated CurrentmACoil ResistanceΩ

Refer to Model Number Designation
B: 800
C: 800
H: 950

B: 800
C: 800
H: 950

Hysteresis

3% or less

3% or lessRepeatability

1% or less

1% or less1213.5Mass

kg

1010★‌ The values shown are those obtained where the differential pressure between thesecondary pressure port and tank port is 13.7 MPa.

Graphic Symbol■ Model Number Designation
ERBG-06Series Number

Type of Mounting

Valve Size

ERB:
Proportional
Electro-Hydraulic
Relieving andReducing Valve

H-108

G:
Sub-Plate
Mounting-C

Secondary Pres. Adj. Range
MPa06

B: 0.8 - 6.9
C: 1.2 - 13.7
H: 1.5 - 20.6

10

B: 0.9 - 6.9
C: 1.2 - 13.7
H: 1.5 - 20.6

SeriesRelieving and Reducing Valves-51
Design Number

51

SERIES■ Accessories● Mounting Bolts
Valve Model Numbers

Socket Head Cap Screw

Qty.

ERBG-06

M10 × 70 L

4EBBG-10

M10 × 70 L

6

● Applicable Power Amplifiers
For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see pages H-173, H-177
and H-183).
Model Numbers : AME-D-10-＊-20
AME-D2-1010-11
AMN-D-10 (For DC power supply)
SK1022-＊-＊-11
SK1015-11 (For DC power supply)■ Sub-Plates
Valve Model
Numbers
ERBG-06
ERBG-10

Sub-Plate Model
Numbers
ERBGM-06-20
ERBGM-10-20

Thread Size
Rc
3/4
1-1/4

Masskg
3.0
6.5● ‌Sub-plates are available. Specify the sub-plate model number from the table above. When sub-plates are not used, the mounting surface shouldhave a good machined finish. ( 1.6 )■ Instructions● Primary Pressure Required for Preselected Pressure
The primary pressure must be 1 MPa higher than the preselected pressure.
● Drain Back Pressure
Check that the drain back pressure does not exceed 0.2 MPa.

E Series
Relieving and Reducing Valves● Trapped Oil Volume
The recommended secondary side trapped oil volume is about 20 liters. Note that the trapped oil volume must not be lower than
1.4 liters.

SeriesRelieving and Reducing Valves

H-109

ERBG-06

212.3

104

79.4

The direction can be alterd
to every 90 degree angles.

213.5
60.3

75.2

Tank Port " T"

Secondary Pressure
Port "A"Primary Pressure Port " P"
Drain Port "DR"

Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area
… Not Exceeding 0.75-1.5 mm2Connector
The direction can be alteredto every 90 degree angles.
48

39

27.5
Air Vent
3 Hex. Soc.
3 Places

11 Dia. Through17.5 Dia. Spotface
4 Places

57.5

Manual Pressure Adj. Screw
3 Hex.Soc.

136.5

90

208

66 Dia.
Locating Pin56

57

115

184.5

INC.

Mounting Surface(O-Rings Furnished)

Sub-Plate

ERBGM-06
130

M10 Thd. 20 Deep
4 Places

60.3
49.2

8.8 Dia. Through14 Dia. Spotface
4 Places
11.3

77.3

30.7

44.5
20.6

39.7

73

79.4

102

25

11.1

10 Dia.

Rc 3/4 Thd.
2 Places(From Rear)
18 Dia.
2 Places

Rc 3/8 Thd.
(From Rear)

20.7

16

27.9

7 Dia.
10 Deep104

5 Dia.

136

H-110

161545

Rc 1/4 Thd.
(From Rear)

SeriesRelieving and Reducing Valves

SERIESThe direction can be alterd
to every 90 degree angles.

234.5
84.1

63.5

96.8

SecondaryPressure Port " A"2119

Tank Port " T"

42.1

11.1

ERBG-1011 Dia. Through17.5 Dia. Spotface
6 PlacesPrimary Pressure Port "P"

Drain Port " DR"

Connector
The direction can be alteredto every 90 degree angles.

Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area
… Not Exceeding 0.75-1.5 mm2

48
27.5

3992

62

66 Dia.
Locating Pin

55

56

117

186.5

57.5

Manual Pressure
Adj. Screw
3 Hex.Soc.
INC.

Air Vent
3 Hex. Soc.
3 Places

158

233
Mounting Surface(O-Rings Furnished)■ Sub-Plate
ERBGM-1027

Rc 1-1/4 Thd.
2 Places(From Rear)

2128 Dia.
2 Places

126150

5 Dia.

7 Dia.
10 Deep

55

96

20

1230

19

Rc 1/4 Thd.
(From Rear)

140

25

16.7

14 Dia.
1242.1
24.6

48.4

92.9

96.8

120

11.6

11 Dia. Through17.5 Dia. Spotface
4 Places

Rc 3/8 Thd.
(From Rear)

116

67.5
62.7

9.6

M10 Thd.
20 Deep
6 Places

E Series
Relieving and Reducing Valves

101.5
84.1

SeriesRelieving and Reducing Valves

H-111

■ Step Response (Example)

The following step response characteristics are taken when the trapped oil volume is 20 liters.
The step response varies by trapped oil volume.
Primary Pressure: 24.5 MPa
Trapped Oil Volume : 20 LViscosity: 30 mm2/s

ERBG-06-B

ERBG-10-B
10986

Secondary Pressure MPa

Secondary Pressure MPa

80.1s

42

Step Signal

60.1s

42

Step Signal

00TimeTime

ERBG-06-C

ERBG-10-C

2220161612

Secondary Pressure MPa

Secondary Pressure MPa

200.1s84

Step Signal01242024840H-112

Step Signal

Time

Secondary Pressure MPa

Secondary Pressure MPa

2812Time

ERBG-10-H

240.1sStep Signal

0Time

ERBG-06-H

160.1s820
160.1s12840Series
Relieving and Reducing Valves

Step Signal

TimeSERIES■ Input Current vs. Secondary Pressure

Primary Pressure : 24.5 MPa
Viscosity: 30 mm2/s

ERBG-10

21.0

21.0

17.5

17.5

Secondary Pressure MPa

ERBG-06-H

14.0
10.5

ERBG-06-C

7.00

14.0
10.5

ERBG-06-B

3.50200

400

800600

Input Current mA

ERBG-10-H

ERBG-10-C

7.0
3.501000

ERBG-10-B
0■ Frequency Response

200247 10Gain

Phase
Secondary Pressure
4.9 1.5 MPa

0-20-40-60-80-100-120-140-160-180

100-10-20Gain dB0.4 0.7 1

Phase deg.

Gain dB

Phase deg.

0-20-40-60-80-100-120-140-160-180

0.2

0.20.2

0.4 0.7 1247 10

Gain
Phase
Secondary Pressure
10.8 2.9 MPa

0-20-40-60-80-100-120-140-160-180

100-10-20
Gain dB

0.1-160-180

0.4 0.7 1247 10

Gain
Phase
Secondary Pressure
16.7 3.9 MPa

7 10Phase
Secondary Pressure
4.9 1.5 MPa

Frequency Hz
0.1

0.2

0.4 0.7 1247 10

Gain

Secondary Pressure
10.8 2.9 MPa

0-20-40-60-80-100-120-140-160-180

SeriesRelieving and Reducing Valves

100-10-20

Phase

Frequency Hz0.1

0.20.4 0.7 1247 10Gain

Gain dB

Phase deg.

-60-80-100-120-1400.2

Phase deg.

-20-400.14

ERBG-10-H

Frequency Hz

Gain dB

02GainERBG-06-H
100-10-200.4 0.7 1

ERBG-10-C

Frequency Hz

Phase deg.

Phase deg.

-20-40-60-80-100-120-140-160-180

Gain dB01000

Frequency Hz
0.1

ERBG-06-C
100-10-20800

ERBG-10-B

Frequency Hz0.1600

Primary Pressure: 24.5 MPa
Trapped Oil Volume : 20 L
Viscosity: 30 mm2/s

ERBG-06-B
100-10-20400

Input Current mA

E Series
Relieving and Reducing Valves

Secondary Pressure MPa

ERBG-06

Phase
Secondary Pressure
16.7 3.9 MPa

H-113

■ Flow Rate vs. Secondary Pressure

Viscosity : 30 mm2/s

Secondary Pressure MPa

7.0
6.5
6.0
3.5
3.0
2.5
1.0
0.500

Secondary Pressure MPa

ERBG-10-B

20406080

100

200255075

ERBG-06-C

ERBG-10-C

4060
Flow Rate L/min

80

100

111096540255075

Secondary Pressure MPa

Secondary Pressure MPa

2120191413121098
7.0
6.5
6.0

H-114

204060Flow Rate L/min

100 125 150 175 200 225 250
Flow Rate L/min

ERBG-10-H

ERBG-06-H

0

100 125 150 175 200 225 250

Flow Rate L/min

14.0
13.5
13.0
10.0
9.5
9.0
4.0
3.5
3.00

765
432210Flow Rate L/min

Secondary Pressure MPa

Secondary Pressure MPa

ERBG-06-B

80100

22201817
151312108753025

SeriesRelieving and Reducing Valves

5075

100 125 150 175 200 225 250
Flow Rate L/min

SERIES■ Viscosity vs. Secondary Pressure3040506070 ℃

15085563726

17 mm2/s

14.0
13.5
13.0
7.5
7.0
6.5
20
Temperature
1502120191110920
Temperature
Viscosity

30405060

70 ℃

8556

3726

17 mm2/s

ERBG-06-H

Secondary Pressure MPa

Viscosity

Temperature

ERBG-06-C

Secondary Pressure MPa

Viscosity

20

150

7.5
7.0
6.5
4.0
3.5
3.0

30

4050

60

70 ℃

8556

3726

17 mm2/s

Viscosity

2030

40

50

60

70 ℃

15085563726

17 mm2/s

ERBG-10-C

14.0
13.5
13.0
7.5
7.0
6.5
20
Temperature
Viscosity

150304050

60

70 ℃

8556372617 mm2/s

ERBG-10-H
2120191110
9Temperature
Viscosity

2030

4050

6070 ℃

150855637

26

17 mm2/s

SeriesRelieving and Reducing Valves

E Series
Relieving and Reducing Valves

Temperature

ERBG-10-B

Secondary Pressure MPa

7.5
7.0
6.5
4.0
3.5
3.0

Secondary Pressure MPa

ERBG-06-B

Secondary Pressure MPa

Secondary Pressure MPa

Oil: ISO VG32H-115

■ List of Seals and Pilot Valves
ERBG- 06
1071311163584111● List of Seals
Item Name of Parts
891011O-Ring
O-RingO-RingO-Ring618914 10215 12● Pilot Valves
Part Numbers
ERBG-06
ERBG-10OR NBR-90 G30-N OR NBR-90 P36-N
OR NBR-90 P28-N OR NBR-90 P28-N
OR NBR-90 P14-N OR NBR-90 P18-N
OR NBR-90 P9-N OR NBR-90 P9-N

Qty.
221
3

Valve Model No.
ERBG-06-B-51
ERBG-06-C-51
ERBG-06-H-51
ERBG-10-B-51
ERBG-10-C-51
ERBG-10-H-51⑦ Pilot Valve Model Numbers
EDG-01-B-PNTN-5101
EDG-01-C-PNTN-5101
EDG-01-H-PNT15-5101
EDG-01-B-PNTN-5101
EDG-01-C-PNTN-5101
EDG-01-H-PNT15-5101

Note: ‌For the details of pilot valves, refer to "Pilot Relief Valves"on page H-97.

H-116

SeriesRelieving and Reducing Valves

SERIES■ Interchangeability between Current and New Design

ERBG-06/10 series valves have changed model from 50 to 51 design in line with the model change of pilot valve (EDG-01).

● Specifications and Characteristics
Input current-secondary pressure characteristics differ between current and new design. Please inquire separately for details.
Other specifications remain unchanged.
● Mounting Interchangeability
There is an interchangeability in the mounting dimensions, however, the outside shape and dimensions are changed as shown
below due to pilot valve improvement and other modifications.

Current: Design 50
See EDG-01 (page H-98)
for details about thesolenoid ass'y

New: Design 51

Pilot Valve
EDG-01, 5001 DesignAir Vent
3 Hex. Soc.

See EDG-01 (page H-98)
for details about thesolenoid ass'yA
B

Manual Pressure
Adj. Screw
3 Hex.Soc.

Adaptor
22 Hex.

B

CCA
214.5
213.5
235.5
234.5

B
136.5
136.5
158
158

C115
115
117
117

E Series
Relieving and Reducing Valves

Model Numbers
ERBG-06-＊-50
ERBG-06-＊-51
ERBG-10-＊-50
ERBG-10-＊-51

A

Air Vent
3 Hex. Soc.
3 Places

Manual Pressure
Adj. Screw
3 Hex.Soc.

Current
NewCurrent
New

Pilot Valve
EDG-01, 5101 DesignSeries
Relieving and Reducing Valves

H-117