40 Ω-10 Ω Series Proportional Electro-Hydraulic Relief and ...40Ω-10Ω SeriesProportional...
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E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
■ 40 Ω-10 Ω Series Proportional Electro-Hydraulic Relief and Flow Control ValvesThis relief and flow control valve is an energy-saving valve that
supplies the minimum 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 servers as
a low power-consumption energy-saving, metre-in, controlled flow
control valve.
Further, since a temperature compensation function is incorporated, this
valve provides consistent flow control irrespective of the fluid
temperature.
■ Specification
Model No.
Description
EFBG-03-125 EFBG-06-250
Max. Operating Pressure Kgf/cm2 250 250
Max. Flow L/min 125 250
Metred Flow Adjustment Range L/min 1-125 2.5-250
Flow
Controls
Rated Current mA 680 580
Coil Resistance Ω 45 43.5
Differential Pressure
Kgf/cm2
6 7
Hysteresis 7% or Less 7% or Less
Repeatability 1% or Less 1% or Less
Pressure
Controls
Pres. Adj. Range Kgf/cm2
C: 14-140
H: 14-210
C: 15-140
H: 14-210
Rated Current mA C: 710
H:770
C: 690
H: 730
Coil Resistance Ω 10 10
Hysteresis 3% or Less 3% or Less
Repeatability 1% or Less 1% or Less
Approx. Mass Kg. Refer to Dim. Drawing.
*1: The rating for pressure controls is applied to models with proportional pilot
relief valve. (Ex. EFBG-03-125-C-※-15)*2: Pressure Adjustment range of the valves without proportional pilot relief
valves is from a minimum adjustable pressure to 250 Kgf/cm2.
A
OM
V
T
Y
P
V
OM
A
Y
T
P
With Proportional
Pilot Relief Valve
Without Proportional
Pilot Relief Valve
Graphic Symbols
E SERIES
EIC-H-1005-0
40Ω-10Ω SeriesProportional Electro-
Hydraulic Relief and Flow Control
Valves
1
H
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E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
■ Model Number DesignationEFB G -03 -125 -C -15
Series
Number
Type of
Mounting
Valve
Size
Max. Metred Flow
L/min.
Proportional Pilot Relief Valve
Pressure Adjustment Range
Design
Number
EFB:
Proportional Electro
Hydraulic Relief and
Flow Control Valve
G: Sub-Plate
Mounting
03 125 : 125 C,H:
See Specifications
None:
Without Proportional Pilot Relief
Valve
15
06 250 : 250 15
■ Applicable Power Amplifiers
■ Sub-Plate
Valve Model Number Socket Head Cap Screw Qty. Bolt Kit Ordering Code
EFBG-03 M10 x 100 Lg. 4 BKBG-03-15
EFBG-06 M16 x 130 Lg. 4 BKBG-06-15
For stable Performance, it is recommended that YUKEN’s applicable power amplifiers be used.
Model Numbers Power Amplifier Model Numbers
For Flow Control For Pres. Control
EFBG- -※-※-15 AME-D-S-※-40 AME-DF-S-※-22 AME-T-S-※-22 ---
PW100-※-H11 EFBG- -※-※- -15 PW100-※-H11,
AME-D2-H1-※-12 Valve
Model
Number
Sub-Plate
Model Number
Piping
Size
Mass
Kg.
EFBG-03 EFBGM-03Y-1080 3/4 BSP.F
6 EFBGM-03Z-1080 1 BSP.F
EFBG-06 EFBGM-06X-1080 1 BSP.F 12.5
EFBGM-06Y-1080 1-1/4 BSP.F 16
Sub-Plates are available. Specify sub-plate model from the table above. When sub-plates are not used, the mounting surface
should have a good machined finish.
■ InstructionsDrain Back Pressure
Check that the drain back pressure does not exceed 2 Kgf/cm2
When Relief Valve Passing Flow Rate is Low in Pressure Control State
To avoid preselected pressure instability, use a passing flow rate of 10L/min. or higher for nominal sizes 03
and 06. Further, check that the tank-line back pressure does not exceed 5 Kgf/cm2
Safety Valve Pressure Setting
The safety valve is preset to a pressure that is 2 Kgf/cm2 higher than the maximum adjustment pressure.
Therefore, adjust this pressure setting as needed to suit the pressure used.
To lower the pressure setting, turn the safety valve pressure adjustment screw anti-clockwise. After
adjustment, be sure to tighten the lock nut.
03
06
C
H
03
06
E SERIES
2
■ AttachmentMounting Bolts
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EFBG-03-125- -15
E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
174
47.7
29.7
Fu
lly
Ex
tend
ed 1
02
Lock Nut
10 Hex.Pressure Adjustment
Screw for Safety Valve3 Hex. Soc.
Inc.
■ Model with Proportional Pilot Relief ValveC
H
■ Model without Proportional Pilot Relief ValveDIMENSIONS IN
MILLIMETRES
85
164
.5
21
2
80
41
10
1.5
57.5
17
1
6
Two Locating Pins
6 Dia.
Mounting Surface
(O-Ring Furnished)
Connector
The Direction can be
altered to 90 degree
angle
Cable Departure
Cable Applicable:
Outside Dia. ... 8-10mm
Conductor Area
.... Not Exceeding 1.5mm²
Connector
Full
y E
xte
nded
216
47
91.6
39
61.7
36.7
188
38
61
.8
10
1.6
14
.2
13
0
125
50.8
101.611.7
Cable Departure
Cable Applicable:
Outside Dia. ...8-10 mm
Conduction Area
..... Not Exceeding 1.5 mm²
Inlet Port "P"
11 Dia. x Thru.
17.5 Dia. Spotface
4 Places
Tank Port "T"
Manual Flow Adj. Screw
M4 Thd. (internal Thd.)
Vent Port "V"Drain Port "Y"
Outlet Port "A"
Manual Pressure
Adj. Screw
3 Hex. Soc.
The direction can
be altered to every
90 degree angles.
Air Vent
3 Hex. Soc.
Lock Nut10 Hex. Soc.
Pressure Adjustment
Screw for Safety Valve3 Hex. Soc.
Inc.
Inc.
For other dimensions, please refer to the models above. Approx. Mass……...14 Kg.
EFBG-03-125-15
Approx. Mass……...16 Kg.
E SERIES
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40Ω-10Ω SeriesProportional Electro-
Hydraulic Relief and Flow Control
Valves
H
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E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
247
42
67
17
4
133
.42
0.3
82
180
17 146.1
73
Fu
lly
Ex
ten
ded
217
39
99
.139
.5
80
107
196
.3
24
4
62
130
19
9.5
57
.5
7Two Locating Pins
6 Dia.
Mounting Surface
(O-Ring Furnished)
Manual Pressure
Adjustment Screw
3 Hex. Soc.
Cable Departure
Cable Applicable:
Outside Dia. ... 8-10 mm
Conductor Area
... Not Exceeding 1.5mm²
Connector
Inlet Port "P"
Cable Departure
Cable Applicable:
Outside Dia. ... 8-10 mm
Conductor Area
... Not Exceeding 1.5mm²
Lock Nut
10 Hex.
Pressure Adjustment
Screw for Safety Valve
3 Hex. Soc.
17.5 Dia. x Thru.
26 Dia. Spotface
4 Places
Tank Port "T"
Manual Flow Adj. Screw
M4 Thd. (Internal Thd.)Drain Port "Y"
Outlet Port "A"
Air Vent3 Hex. Soc.
The direction can
be altered to every
90 degree angles.
Vent Port "V"Air Vent
3 Hex. Soc.
inc.
inc.
inc.
233
5335
Fu
lly E
xte
nd
ed 1
19
Pressure Adjustment
Screw for Safety Valve3 Hex. Soc.
Lock Nut10 Hex.
Inc.
■ Model with Proportional pilot Relief ValveC
H
■ Model without Proportional pilot Relief Valve
DIMENSIONS IN
MILLIMETRES
For other dimensions,
please refer to the models above.
Approx. Mass……...28 Kg.
EFBG-06-250- -15
EFBG-06-250-15
Approx. Mass...30 Kg.
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E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
20
59
80
100
10
1.6
13
0
14
.2 23.8
50.8
77.8
102.4
0.8 101.6
11.7
125
12.5
28.6
88
.9
95
.3
22.2
39.2
106.8
146
168
20 4
0
M10 Thd. x18 Deep
4 Places
11 Dia. x Thru.
17.5 Dia. Spotface
4 Places
23 Dia. 3 Places
7 Dia. x 7 Deep
2 Places
"A" Thd.
3 Places
1/4 BSP.F Thd.
11 Dia. x 1/4 BSP.F Thd.
( From Rear)
6 Dia.
D
C
33
19 212
250
3.7
12.7
41.3
85.7
107
133
.4
16
B
126
174
1.6
28.1
73.1
118.1
144.5146.1180
17.5 Dia. x 10Deep
2 Places
29 Dia.
3 Places
17
M16 Thd. x 30 Deep
4 Places
17.5 Dia. x Thru.
26 Dia. Spotface
4 Places
6.2 Dia. x 1/4 Thd.
(From Rear)15.2 Dia. x 3/8 Thd.
(From Rear)
"E" Thd. 3 Places
Sub-Plate
Model No.
Dimension mm Thread Size
“E” Thd. B C D
EFBGM-06X-1080 107 45 35 1 BSP.F
EFBGM-06Y-1080 95 60 40 1-1/4 BSP.F
Sub-Plate
Model No.
Thread Size
“A” Thd.
EFBGM-03Y-1080 3/4 BSP.F
EFBGM-03Z-1080 1 BSP.F
DIMENSIONS IN
MILLIMETRES
EFBGM- -1080
EFBGM- -1080
E SERIES
03Y
03Z
06X
06Y
5
40Ω-10Ω SeriesProportional Electro-
Hydraulic Relief and Flow Control
Valves
H
-
0
20
40
60
80
100
120
140
160
Step Signal
0.1 s
Time Time
0
50
100
150
200
250
300
L/min.
Flo
w R
ate
Flo
w R
ate
60
100
140
180
220
Kgf/cm²
Pre
ssu
re
L/min.
Time Time
60
100
140
180
220
Kgf/cm²
Pre
ssu
re
Flo
w R
ate
L/min.
00
25
50
75
100
125
50
00
100
150
200
250
300
Flo
w R
ate
L/min.
100 200 300 400 500 600
Input Current mA Input Current mA
100 200 300 400 500 600 700
0.2 s
Step Signal
0.2 s
Step Signal
EFBG-03-125-H
EFBG-03-125-C
EFBG-06-250-H
EFBG-06-250-C
Step Signal
0.1 s
E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
■ Step Response (Flow Controls)These values were measured on independent valves. They vary by circuit
■ Step Response (Pressure Controls)These values were measured on independent valves. They vary by circuit
■ Input Current vs. Flow
EFBG-03 EFBG-06
EFBG-03 EFBG-06
EFBG-03 EFBG-06
E SERIES
6
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E Series
40Ω-10Ω Series Proportional Electro-Hydraulic
Relief and Flow Control Valves
■ Spare Parts ListList of Seals
Note: When Ordering the seals, please specify the seal kit numbers from the table below.
List of Seals
Sl.
No. Name of parts Part Numbers
Qty.
EFBG-03 EFBG-06
1 O-Ring SO-NB-P18 1 1
2 O-Ring SO-NA-P10A 1 1
3 O-Ring SO-NB-P9 5 2
4 O-Ring SO-NB-P11 2 3
5 O-Ring SO-NB-P15 1 1
6 O-Ring SO-NA-P26 - 1
7 O-Ring SO-NB-P28 6 1
8 O-Ring SO-NB-P30 - 1
9 O-Ring SO-NB-G30 1 1
10 O-Ring SO-NB-P32 1 1
11 O-Ring SO-NB-P36 - 1
12 O-Ring SO-NB-P42 - 1
13 O-Ring SO-NB-P44 - 1
Model numbers Seal Kit Numbers
EFBG-03-15 KS-EFBG-03-15
EFBG-06-15 KS-EFBG-06-15
■ Input Current vs. Pressure
200 400 600 800 10000
0
50
100
150
200
250
Kgf/cm²
Pre
ssure
Input Current mA Input Current mA
200 400 600 800 10000
0
50
100
150
200
250
Kgf/cm²
Pre
ssure
EFBG-03-125-C
EFBG-03-125-H EFBG-06-250-H
EFBG-06-250-C
EFBG-03 EFBG-06
E SERIES
7
40Ω-10Ω SeriesProportional Electro-
Hydraulic Relief and Flow Control
Valves
H