SERIES■ 10Ω –10Ω Series

Proportional Electro-Hydraulic Flow Control and Relief Valves
This flow control and relief valve is an energy-saving valve that supplies theminimum pressure and flow necessary for actuator drive.
Since this valve controls the pump pressure by following the load pressure while
keeping the differential pressure minimized, it serves as a low power-consumptionenergy-saving, meter-in, controlled flow control valve.
Further, since a temperature compensation function is incorporated, this valve
provides consistent flow control without respect to the fluid temperature.

■ Specifications
EFBG-03-125  -＊-＊-61

EFBG-06-250  -＊-＊-61

EFBG-10-500  -＊-＊-61

Max. Operating Pressure

MPa

24.5

24.5

24.5

Max. Flow

L/min125250500

Metered Flow Adjustment Range L/min

1-125

2.5-250

5-500

Min. Pilot Pressure

1.5

1.5

1.5

11

1

Flow Controls

Pilot Flow

Pressure Controls★1L/minRated Current
Coil ResistanceMPa
at Normal
at Transition

346mA

800

750900Ω

101010MPa

0.7

0.7

0.9

Hysteresis

3% or less

3% or less

3% or lessRepeatability

1% or less

1% or less

1% or lessDifferential Pressure

C: 1.4-15.7
H: 1.4-24.5
C: 890
H: 93010

C: 1.4-15.7
H: 1.4-24.5
C: 820
H: 88010

C: 1.5-15.7
H: 1.5-24.5
C: 800
H: 900
10Hysteresis

3% or less

3% or less

3% or lessRepeatability

1% or less

1% or less

1% or less★2

Pres. Adj. Range

MPa

Rated Current

mA

Coil ResistanceΩApprox. Mass

kg

Graphic Symbols
With Proportional Pilot Relief Valve
External Pilot

Internal Pilot
A

Refer to pages H-137 to H-139★1. ‌The specifications for pressure controls are applied to models with proportional pilot relief valve.
(Ex. EFBG-03-125-C-＊-61)★2. ‌The maximum pressure adjustment range of the models without proportional pilot relief valves is24.5 MPa.

YX
OM

OM
VTP

Without Proportional Pilot Relief Valve
External Pilot

Internal Pilot
AYX
O
M

VO
M

E Series
10Ω-10Ω Series Flow Control (and Check) Valves

Model Numbers

Descriptions

TP

Series10Ω-10Ω Series Flow Control (and Check) Valves

H-135

■ Model Number Designation
EFBG-03-125-C-E-61

Series Number

Type ofMounting

Valve Size

Max. Metered Flow
L/min

Proportional Pilot Relief
Valve Pressure Adj. Range

PilotConnection

DesignNumber

03

125C, H:
See Specifications

6106

250

None:
Internal Pilot

EFB:
Proportional ElectroHydraulic Flow
Control and Relief
Valve

G:
Sub-Plate
Mounting

10

None:
Without Proportional
Pilot Relief Valve

500

E:
External Pilot

6151■ Accessories● Mounting Bolts
Valve Model Numbers

Socket Head Cap Screw

Qty.

EFBG-03

M10 × 65 L

4

EFBG-06

M16 × 100 L

4

EFBG-10

M20 × 130 L

4■ Applicable Power Amplifiers

For stable performance, it is recommended that Yuken's applicable power amplifiers be used (for details see page H-173, H-177
and H-183).
Power Amplifier Model Numbers

Valve Model Numbers
EFBG-03-125(-E)-61
EFBG-06-250(-E)-61
EFBG-10-500(-E)-51
EFBG-03-125C/H(-E)-61
EFBG-06-250C/H(-E)-61
EFBG-10-500C/H-(E)-51

For Flow Control

For Pres. Control

AME-D-10-＊-20
AMN-D-10 (For DC Power Supply)—AME-D2-1010-11■ Sub-Plate
Valve ModelNumbers
EFBG-03
EFBG-06
EFBG-10

Sub-Plate Model Numbers
EFBGM-03Y-20

Thread Size
Rc
3/4

EFBGM-03Z-20

1Approx. Masskg
6

EFBGM-06X-20

112.5

EFBGM-06Y-20

1-1/4161-1/2, 2 Flange Mounting

37

EFBGM-10Y-20★

● 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 )★When ordering the EFBGM-10Y, also order a F3 series pipe flange kit. For details on the kit, consult us.

■ Instructions● Drain Back Pressure
Check that the drain back pressure dose not exceed 0.2 MPa.
● When Relief Valve Passing Flow Rate is Low in Pressure Control StateTo avoid preselected pressure instability, use a passing flow rate of 15 L/min or higher.
Further, check that the tank-line back pressure dose not exceed 0.5 MPa.
● Safety Valve Pressure Setting
The pressure of the safety valve is preset at the value equal to the upper limit of the pressure adjustment range plus 2 MPa. Pleaseadjust the pressure of the valve so preset to meet the pressure to be used actually.
To lower the pressure setting, turn the safety valve pressure adjustment screw anti-clockwise. After adjustment, be sure to tighten
the lock nut.

H-136

Series10Ω-10Ω Series Flow Control (and Check) ValvesSERIES
Models with Proportional Pilot Relief Valve

130C
EFBG-03-125 - (-E)-61H

14.2

101.6

11 Dia. Through17.5 Spotface
4 Places

94.8
Outlet Port " A"
12.8

11.7

Vent Port " V"

Tank Port " T"

Inlet Port "P"

Drain Port " Y"
View Arrow Z

Manual Flow Adj. Screw
3 Hex. Soc.

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

132

125

101.6
57.5

50.8

33.3

2

Pilot Pressure Port " X"

61.8

INC.

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

Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area
… Not Exceeding 0.75-1.5 mm2Models without
Proportional Pilot Relief ValveEFBG-03-125(-E)-61
Air Vent
3 Hex. Soc.
3 Places
Pressure Adj. Screw for Safety Valve
3 Hex. Soc.

659

Locating Pins
6 Dia. 2 Places

INC.

Fully Extended
161

Lock Nut
10 Hex.

48.2

171.8

INC.
Pressure Adj. Screw
for Safety Valve
3 Hex. Soc.

248.5

39

Lock Nut
10 Hex.

Z

Mounting Surface(O-Rings Furnished)

Approx. Mass ...... 14 kg

E Series
10Ω-10Ω Series Flow Control (and Check) Valves

Air Vent
3 Hex. Soc.
3 Places● For other dimensions, please refer to the models with
Proportional Pilot Relief Valve.
Approx. Mass ...... 13.3 kg

Series10Ω-10Ω Series Flow Control (and Check) Valves

H-137

Models with Proportional Pilot Relief Valve

174

Tank Port " T"

133.4

20.3

Drain Port " Y"

129.7

Air Vent
3 Hex. Soc.
3 Places

85.7

17.5 Dia. Through26 Dia. Spotface
4 Places

1719.73 Hex. Soc.

146.1

54

Manual Pressure Adj. Screw

73.1

Inlet Port "P"

57.5

Air Vent
3 Hex. Soc.
3 Places

180

C
EFBG-06-250 - (-E)-61
HINC.
Vent Port " V"

Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area
… Not Exceeding 0.75-1.5 mm2Outlet Port " A"

Pilot Pressure Port " X"

Models without
Proportional Pilot Relief Valve

Manual Flow Adj. Screw
3 Hex. Soc.
INC.
Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area
… Not Exceeding 0.75-1.5 mm2

EFBG-06-250(-E)-61

Fully Extended
19576

251.5
8Lock Nut
10 Hex.

77INC.
Pressure Adj. Screw
for Safety Valve
3 Hex. Soc.

289.5

Pressure Adj. Screw for Safety Valve
3 Hex. Soc.
INC.
Lock Nut10 Hex.

Locating Pins
16 Dia. 2 Places

Mounting Surface(O-Rings Furnished)

Approx. Mass ...... 22 kg● For other dimensions, please refer to the models
with Proportional Pilot Relief Valve.
Approx. Mass ...... 21.3 kg

H-138

Series10Ω-10Ω Series Flow Control (and Check) Valves

SERIES
Models with Proportional Pilot Relief ValveC
EFBG-10-500 - (-E)-51
H

Sling Fitting
2 Places

Pressure Adj. Screw for Safety Valve
3 Hex. Soc.

Tank Port " T"

220

INC.

Drain Port " Y"

177.8

21

Air Vent
3 Hex. Soc.
3 Places

115

Lock Nut
10 Hex.

41

23.6

21.5 Dia. Through32 Dia. Spotface
4 Places
Inlet Port "P"

196.9
98.5

69.5

57.5

3965.412

Outlet Port " A"

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

Models without
Proportional Pilot Relief Valve

244

Vent Port " V"

Connector
The direction can bealtered to every 90 degree
angles.

Cable Departure
Cable Applicable:
Outside Dia. … 8-10 mm
Conductor Area … Not Exceeding 0.75-1.5 mm2
Pilot Pressure Port " X"

INC.

176

10321.5

Connector
The direction can bealtered to 90 degree
angles.

106

107

INC.

283.3

57.5

Pressure Adj. Screw
for Safety Valve
3 Hex. Soc.

241

31310.5

Lock Nut
10 Hex.

Air Vent
3 Hex. Soc.
3 Places

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

Locating Pins
18 Dia. 2 Places

Mounting Surface(O-Rings Furnished)

E Series
10Ω-10Ω Series Flow Control (and Check) Valves

Fully Extended
226

EFBG-10-500(-E)-51

Approx. Mass ...... 62 kg● For other dimensions, please refer to the models with
Proportional Pilot Relief Valve.
Approx. Mass ...... 60 kg

Series10Ω-10Ω Series Flow Control (and Check) Valves

H-139

Sub Plates
03Y−20EFBGM−03Z180

6 Dia.
Rc 1/4 Thd. (From Rear)
11 Dia.
Rc 1/4 Thd. (From Rear)

39.2

168

33

20.3

Rc "J" Thd.
3 Places

212
250

6.2 Dia.
Rc 1/4 Thd. (From Rear)

14 Dia.
Rc 3/8 Thd. (From Rear)

40

DE

F

H

J

EFBGM−06X−20

103.3 63.3

45

35

341

EFBGM−06Y−20

95

53.3

60

40

39 1 1／4H20

Rc 1/4 Thd.

1919

6.2 Dia.

146

Sub-Plate Model Numbers

B

Sub-Plate Model Numbers

EFBGM−03Y−20

3／41

EFBGM−03Z−20

10741.3

DT

85.7

P
X A Y

Rc 1/4 Thd. (From Rear)

6 Dia.

106.8
1117 Dia. 10 Deep
2 PlacesV
Rc "B" Thd.
3 Places

22.2

73.1

B

EFBGM−10Y−20
21.5 Dia. Through32 Dia. Spotface
4 Places

250
177.8

M20 Thd. 32 Deep
4 Places

115

55.5

6.2 Dia.

80
50

144.5

Rc 1/4 Thd.

74

49

25TV

73

M16 Thd. 32 Deep
3×4 Places

PY73

6.2 Dia.

224

H-140

2973

A X 7.5

72

212

284

334

43.5

35

98.5

162

196.9
1.6

198.4
23.5

244

20 Dia. 15 Deep
2 Places2348 Dia.
3 Places

11973

17.5

14 Dia.

177.8

Rc 3/8 Thd.

73

43.5 Dia.
3 Places

142

144.5
119

41.9

36.1

133.4

V

29 Dia.
3 Places

28.1

16T

174

Y

95.3

X
A

144.5
118.1

1.6

24

12.7

28.6

20

P

80

45

14.2

23.8

100

130

7 Dia. 7 Deep
2 Places

1.9

E

77.8
50.8

59

11 Dia. Through17.5 Dia. Spotface
4 Places

23 Dia.
3 Places

3.7

101.6

F

0.8

M16 Thd. 30 Deep
4 Places
17.5 Dia. Through26 Dia. Spotface
4 Places

146.1

B

102.4

126

11.7

1712.7

125

88.9

M10 Thd. 18 Deep
4 Places

101.606X−20
EFBGM−06YSeries10Ω-10Ω Series Flow Control (and Check) Valves

Rc 1/4 Thd.

SERIES■ Step Response

These characteristics have been obtained by measuring on each valve.
Therefore, they may vary according to a hydraulic circuit to be used.

Viscosity: 30 mm2/s● Flow Controls
EFBG-03

EFBG-06

Flow Rate L /min

Flow Rate L /min

125100
750.1s5025

Step Signal

0

EFBG-10300

600250500

Flow Rate L /min

1502001500.2s

10050

Step Signal

0400
3000.2s

200100

Step Signal

0TimeTimeTime

EFBG-03

EFBG-06

EFBG-10● Pressure Controls30

EFBG-03-125-C
0.2s

10

Step Signal

020

EFBG-06-250-C
0.2s

10

Step Signal

0Time■ Input Current vs. Flow

20

EFBG-10-500-C
0.2s

10

Step Signal

0

Time: 125 L /min
Flow Rate
Trapped Oil Volume : < 1 L

EFBG-10-500-H

Time: 250 L /min
Flow Rate
Trapped Oil Volume : < 1 L: 500 L /min
Flow Rate
Trapped Oil Volume : < 1 L

Viscosity: 30 mm2/s

EFBG-03

EFBG-06

EFBG-10100200400755015010050250000200 400 600 800 1000
Input CurrentmA■ Input Current vs. Pressure

EFBG-03-125-H

200 400 600 800 1000
Input Current
mA

EFBG-10

EFBG-06-250-H

EFBG-03-125-C

200 400 600 800 1000
Input Current
mA

1510
EFBG-06-250-C

500

200 400 600 800
Input Current
mA

EFBG-10-500-H

20
Pressure MPa

Pressure MPa

100025201501000200 400 600 800 1000
Input Current
mA

255200EFBG-06

2520300

Viscosity: 30 mm2/s

EFBG-03

Pressure MPa

Flow Rate L /min

500

Flow Rate L /min

250

Flow Rate L /min

125

1000

Series10Ω-10Ω Series Flow Control (and Check) Valves

1510
EFBG-10-500-C50E Series
10Ω-10Ω Series Flow Control (and Check) Valves

2030

EFBG-06-250-H
Pressure MPa

EFBG-03-125-H
Pressure MPa

Pressure MPa

300200 400 600 800 1000
Input CurrentmAH-141

■ List of Seals and Solenoid Ass'y
EFBG-03-125- - -61
EFBG-06-250- - -61

3535 34 49 21 443320295322

1926564027182815X

111259

25

53

24

46

81043

539

1451

134551

X

52

9655

34542 41

2 23 36 3846 16● List of Seals and Solenoid Ass'y
Item

Name of Parts

3637383940
41424344454647O-Ring
O-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-Ring

EFBG-03
Part Numbers
AS568-016(NB-70-1)
OR NBR-70-1 P6-N
OR NBR-90 P28-N
OR NBR-90 P32-N
OR NBR-90 P28-N
OR NBR-90 P28-N
OR NBR-90 G30-N
OR NBR-90 P28-N
OR NBR-90 P15-N
OR NBR-90 P11-N
OR NBR-90 P9-N
AS568-016(NB-70-1)

Qty.
111113111251

EFBG-06
Part Numbers
OR NBR-70-1 P26-N
OR NBR-70-1 P6-N
OR NBR-90 P44-NOR NBR-90 P42-N
OR NBR-90 P36-N
OR NBR-90 P32-N
OR NBR-90 P30-N
OR NBR-90 P28-N
OR NBR-90 P15-N
OR NBR-90 P11-N
OR NBR-90 P11-N
AS568-016(NB-90)

Qty.
111113111241● Solenoid Ass'yValve Model Numbers
EFBG-03-125-C(E)-61
06 250EFBG-03-125-E(E)-6106 250
EFBG-03-125-(E)-61
06 250㉝ Solenoid Ass'y Model Numbers
E318-Y06M1-04-61㉞ Solenoid Ass'y Model Numbers

E318-Y06M1-28-61—Note) The connector assembly GDM-211-B-11 (Item 35) is not included in the solenoid assembly.

H-142

32
3137302524

Section X-X

50

44657

47

175158Series
10Ω-10Ω Series Flow Control (and Check) Valves

SERIES■ List of Seals, Pilot Valves, Solenoid Ass'y and Safety ValveEFBG-10-500- - -51

25

237

33

4240

Z

1235
31

W

44

W

1Z

3

6

4

18

31

532

34

29

33

33

1936

28

27
20
21
23

40

1445

15

36

1140

1030
1747 57 48 50 51 52

8 36 9 13 41 7 16 41 10 36 8

Section Z-Z54 53 55 49 26

Section W-W

Only for Models withoutPilot Relief Valve

ItemName of Parts

Part Numbers

2930313233343536535455

O-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingO-RingOR NBR-70-1 P34-N
OR NBR-90 G60-N
OR NBR-90 G55-N
OR NBR-90 P50-N
OR NBR-90 P48-N
OR NBR-90 P42-N
OR NBR-90 P36-N
OR NBR-90 P11-N
OR NBR-90 P14-N
AS568-013(NBR-90)
OR NBR-70-1 P6-N

Qty.
Models with
Models without
Pilot Relief Valve Pilot Relief Valve1111331155111188—1—1—
1● Pilot Valve, Solenoid Ass'y and Safety Valve
Valve Model Numbers㉕ Pilot Valve Model Numbers㉗ Solenoid Ass'y Model No.

㉖ Safety Valve Model No.

EFBG-10-500-H(-E)-51

EDG-01V-H-1-PNT12-5103

E318-Y06M1-28-61—

EFBG-10-500(-E)-51—

EFBG-10-500-C(-E)-51

EDG-01V-C-1-PNT12-5103—

E Series
10Ω-10Ω Series Flow Control (and Check) Valves● List of Seals

SB1094-2002

Note) The connector assembly GDM-211-B-11 (Item 28) is not included in the solenoid assembly.

Series10Ω-10Ω Series Flow Control (and Check) Valves

H-143■ Interchangeability between Current and New Design

Model changes have been made from 50, 51 to 61 design in the EFBG-03/06 because of changes in the pilot valve building-in
method and model changes have been made from 50 to 51 design in the EFBG-10 because of improvement in solenoid ass'y.

● Specification and Characteristics
The input current and pressure–flow characteristics differ between the new and old models. Ask Yuken for details.
No changes in specifications and characteristics between current and new design.

● Safety Valve Pressure Setting
・EFBG-03/06
50・51 Design → 61 Design
The mounting surface are interchangeable. However, the method of building in the pilot valve has been changed, bringing
about changes in the appearance shapes and dimensions as shown below.
Current : Design 50・51

Air VentCurrent : Design 50 ・ 51
Manual Flow Adj. Screw

Air Vent
Air Vent

Fully Extended A

thesolenoid
ass'y
Pressure
Adj.
Screw
for Safety Valve
Pressure Adj. Screw
for Safety Valve

CD

DD

D

Air Vent
Manual Pressure
Adj. Screw
Manual Pressure
Adj. Screw

See EDG-01
ManualFlow Adj. Screw(page H-98)
SeeEDG-01
for the details of(pageH-98) ass'y
the solenoid
for the details ofthesolenoid
Pilot
Valve ass'y
EDG-01,50 Design
Pilot Valve
EDG-01,50 Design

Fully Extended A

New : Design 61
Front Side :Manual Flow Adj. Screw New : Design 61
Air Vent 6 Places
Front Side :Rear Side :Manual Flow Adj. Screw
Manual Pressure Adj. Screw
Air Vent
Places
See6EDG-01
Rear Side :(page H-98)
Manual Pressure Adj. Screw
ASee
EDG-01for thedetails of(pageH-98) ass'y
thesolenoid
Afor the details ofC

Pressure Adj. Screw
for Safety Valve
Pressure Adj. Screw
for Safety ValveBB

Valve Model Numbers(Current)(New)(Current)(New)

50
EFBG-03-125-＊-＊51

EFBG-03-125-＊-＊-61
50
EFBG-06-250-＊-＊51
EFBG-06-125-＊-＊-61

B
B

AB

C

D

217

93.2

155

2236.5

132

18.7

—

248.5

217

53.3

196

277.5

180

16.9

—

289.5

60 Design → 61 Design
The mounting surface are interchangeable. There are no changes in the appearance shapes and dimensions.
・EFBG-10
Mounting compatibility is provided.
Note that because of improvements made on the solenoids, the overall shapes have been changed as shown below.

Manual Flow Adj. Screw

Air Vent
Manual Pressure
Adj. Screw
Manual Pressure
Adj. Screw

322.5
322.5

Air Vent

H-144

Air
SeeVentEDG-01(page H-98)
See
EDG-01for thedetails of(pageH-98) ass'y
the solenoid
for the details of
the solenoid ass'y

New : Design 51

Air Vent
New : Design 51 Manual Flow Adj. Screw
3 Places
Manual Flow Adj. Screw
Air Vent
Manual Pressure
3 Places
Adj. Screw
Manual Pressure
Air Vent
Adj. Screw
3 Places
Air Vent
See
EDG-01
3 Places(page H-98)
SeeEDG-01
for thedetails of(pageH-98) ass'y
thesolenoid
for the details of
the solenoid ass'y
321.5
321.5

Current : Design 50
50 Flow Adj. Screw
ManualAir VentCurrent : Design

X A

X A

X A

X A

Series10Ω-10Ω Series Flow Control (and Check) Valves