■
High Response Type Proportional Electro-Hydraulic Directional and Flow Control Valves
EIC-H-1007-0
EH SERIES
High response, high precision and high reliability are achieved by a combination of compact and powerful solenoid
and spool-position-detection LVDT.
Direct type ELDFG-01/03 and two stage type ELDFHG-04/06 (which use the ELDFG-01 as a pilot) are available.
■
Direct Operated Type Directional and Flow Control Valves
This product can be interchanged with the simplified servo valve to perform position control and pressure control.
Compared to nozzle flapper type of servo valve, this product has excellent contamination-related problems.
■
Specification
Model Numbers
Description
Max. Operating Pressure Kgf/cm2
Max. Tank Line Pres.
Kgf/cm2
ELDFG-01
315
210
10 : 10
20 : 20
35 : 35
Rated Flow
L/min.
[Valve ∆P : 150 Kgf/cm2]
Hysteresis
Repeatability
40 : 40
80 : 80
0.5% or less
0.5% or less
100 %
100
30 ms
0%
38 ms
Phase
-90 Degree
Frequency
Response
(0 ±25 %V)
48 Hz
3C2, 3C40: 35 Hz
3C2P: 38 Hz
[20 C]
Max. 2.5 A
3.9 Ω
Max. 3A
3Ω
Kg.
Max. 25 W
3.2
Max. 27 W
7.5
0
Approx. Mass
Graphic Symbol
3C2, 3C40: 36 Hz
3C2P: 41 Hz
52 Hz
Gain
-3dB
Rated Current
Coil Resistance
Power Input
3C2, 3C40: 29 ms
3C2P: 25 ms
3C2, 3C40: 26 ms
3C2P: 23 ms
■
A
SOL a
SOL b
T
Flow Rate
100
80
Rated
Flow
40
20
100
200
T
SOL b
3C2
3C2P
3C2
3C2P
A
B
A
B
P
T
P
T
SOL b
SOL a
SOL b
H
3C40
B
A
P
T
35 L/min.
20 L/min.
10 L/min.
300 Kgf/cm²
Valves Pressure Difference ∆P
Rated
Flow
150
100
80 L/min.
40 L/min.
50
0
SOL a
SOL b
SOL b
P
T
L/min.
200
60
P
Control Type
3 Port Valve
L/min.
L/min.
0
A
SOL a
SOL b
P
B
SOL a
SOL b
Control Type
4 Port Valve
100
200
300
Kgf/cm²
Valves Pressure Difference ∆P
200
Flow Rate
T
A
ELDFG-03
Control Type
3 Port Valve
Flow Rate
P
SOL a
T
3C40
ELDFG-01
B
P
SOL a
See “Valve Pres. Difference vs. Flow Rate” below characteristics for
the appropriate range.
A
B
SOL a
Range of Flow Control
Control Type
4 Port Valve
Metre-Out Control
A
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
0
Step Response
(Typical Rating)
■
ELDFG-03
150
Rated Flow
100
80 L/min.
40 L/min.
50
0
100
200
300
Kgf/cm²
Valves Pressure Difference ∆P
* Valve pressure difference “ P” is reference by follows. In addition, “P”, “A”, “B”, “T” are pressure of each port.
4 Port Valve: P = [(P-A) + (B-T)] or [(P-B) + (A-T)]
3 Port Valve: P = (P-A) + (A-T)
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
1
EH SERIES
■
Model Number Designation
F-
ELDF
G
-01
Special Seals
Series Number
Type of
Mounting
Valve
Size
F: Special Seals
For Phosphate
Ester Type
Fluid
(Omit if not
required)
ELDF:
Proportional
ElectroHydraulic
Direct Operated
Type Directional
and Flow Control
Valves
■
01
-35
Rated
Flow
L/min.
-3C2
Spool *1
10:10
20:20
35:35
03
40:40
80:80
-10
Design
Number
10
3C2
G:
Sub-Plate
Mounting
-XY
Direction
of
Flow
3C40
XY:
Metreout
Metre-in
10
Attachment
Mounting Bolts
Model number
Socket Head Cap Screw
Qty.
ELDFG-01
M5x45Lg.
4
Bolt Kit
Model Number
BKELDFG-01-10
ELDFG-03
M6x35Lg.
4
BKELDFG-03-10
■
Sub-Plate
Valve
Model No.
ELDFG-01
ELDFG-03
Sub Plate
Model No.
Pipe Connection
Thd.
DSGM-01-3080
DSGM-01X-3080
DSGM-01Y-3080
DSGM-03-2180
1/8
1/4
3/8
3/8
DSGM-03X-2180
1/2
DSGM-03Y-2180
3/4
Mass
Kg.
0.8
3
4.7
Sub-plates are available. Specify the sub-plate model number from the table above.
When sub-plates are not used, the mounting surface should have a good machined finish.
The Sub-plates are those for 1/8 and 3/8 solenoid operated directional valves.
For dimensions, see Page. No. 11 of both EIC-E-1001 and EIC-E-1002.
■
Applicable Power Amplifiers
For stable performance, it is recommended that Yuken’s applicable power amplifiers be used (for details see page 16
of EIC-H-1008).
Valve Model
Numbers
※ 3C2
3C40
ELDFG-01-※-3C2P
3C2
ELDFG-03-※3C40
ELDFG-03-※-3C2P
ELDFG-01- -
2
Power Amplifier
Model Numbers
AMN-L-01-1-10
AMN-L-01-3-2P-10
AMB-EL-03-1-10
AMB-EL-03-2P-1-10
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
EH SERIES
■
ELDFG-01-
- -XY-10/1090
5.5 Dia. x Thru.
9.5 Dia. Spotface
4 Places
Pressure Port "P"
40.5
Cylinder Port "A"
0.75
The direction can be altered to
every 90 degreee angles.
Air Vent
3 Hex.
3 Places
32.5
31
1: SIG
Air Vent
3 Hex.
3 Places
1,2: Power
Supply
Tank Port "T"
Cylinder Port "B"
148.5
186.5
133
39
82
39
37
44
SOL b
Cable Departure
Cable Applicable:
Outside Dia. 4.5-7 mm
Conductor Area
0.5-0.75 mm²
38
58
2: CAR
3: COM
3: Earth Terminal
SOL a
25
95
Cable Departure
Cable Applicable:
Outside Dia. 8-10 mm
Conductor Area
0.75-1.5 mm²
48
27.5
Air Vent
2.5 Hex.
11
Manual Actuator
6 Dia.
Mounting Surface
(O-Rings Furnished)
65
335
Note : For valve mounting surface dimensions see the dimensional drawing of sub-plates page 11 od EIC-E-1001.
- -XY-10/1090
7 Dia. x Thru.
10.5 Dia. Spotface
4 Places
Air Vent
2.5 Hex.
Cylinder Port "A"
54
Pressure Port "P"
Cylinder Port "B"
The direction can be altered
to every 90 degree angles.
46
56
2: CAR
1: SIG
3: COM
Tank Port "TA" *
Tank Port "TB" *
3: Earth Terminal
Cable Departue
Cable Applicable: Outside Dia. 4.5-7 mm
Conductor Area ... 0.5-0.75 mm²
192
138.1
39
91
70
27.5
37
SOL a
21
36
44
SOL b
16
Mounting Surface
(O-Rings Furnished)
H
Air Vent
3 Hex.
2 Places
1, 2: Power
Supply Terminal Cable Departue
Cable Applicable: Outside Dia. 8-10 mm
Conductor Area ... 0.75-1.5 mm²
173
72
37
DIMENSIONS IN
MILLIMETRES
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
ELDFG-01-
86
120
■
Manual Actuator
6 Dia.
365
Note : For valve mounting surface dimensions see the dimensional drawing of sub-plates page 11 od EIC-E-1002.
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
3
EH SERIES
Input Voltage vs. Flow Rate
-3C2/3C40
L/min.
Flow Rate
ELDFG-01-
ELDFG-01- -3C2P
L/min.
40
30
A B
20
P T
35 L/min.
20 L/min.
10 L/min.
VDC Input Voltage 10
-10 -8
-4
-10 -8
4
10L/min.
A B
-20
P T
-30
35 L/min.
P T
-30
-40
40 L/min.
100
80
VDC Input Voltage
-10 -8
60
40
20
0
P T
40 L/min.
8 10
4
Input Voltage VDC
-40
-60
-80
-100
P T
-4
80 L/min.
A B
40 L/min.
80 L/min.
AB
-40
P T
-60
8 10
Input Voltage VDC
-20
-80
L/min.
L/min.
-4
-1
-2
-0.5
A B
-1.0
P T
-1.5
-3
0
-10 -8
Input Voltage VDC
0
4
AB
8
P T
6
4
2
0
8 10
0
-4
-0.5
-1
A B
-2
-1.0
P T
-1.5
-3
-3C2P
VDC
mm
Spool St.
10
Spool St.
Spool St.
Sensor Monitor Voltage
1
ELDFG-03-
VDC
mm
VDC
0.5
-3C2/3C40
3.0
2.5
2.0
1.5
1.0
VDC Input Voltage 0.5
-10 -8
-4
0
0
-0.5
-2
-1.0
-4
-1.5
A B
-6
-2.0
-8
P T
-2.5
-3.0
-10
2
P T
VDC Input Voltage
Sensor Monitor Voltage
ELDFG-03-
1.0
-10 -8
0
-2
-4
-6
-8
-10
-12
VDC
-4
AB
P T
Sensor Monitor Voltage
Input Voltage VDC
0
4
8 10
0
Sensor Monitor Voltage
0
-10 -8
1
3
A B
3.0
2.5
2.0
1.5
1.0
0.5
0
A B
P T
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
12
10
8
6
4
2
0
Sensor Monitor Voltage
0.5
mm
1.5
Spool St.
2
P T
Sensor Monitor Voltage
1.0
-3C2P
Spool St.
3
A B
ELDFG-01-
VDC
Spool St.
mm
1.5
Spool St.
Sensor Monitor Voltage
-3C2/3C40
Sensor Monitor Voltage
Input Voltage vs. Spool St.
ELDFG-01VDC
4
-20
8 10
Input Voltage VDC
L/min.
ELDFG-03- -3C2P
L/min.
Spool St.
■
A B
Flow Rate
Flow Rate
80 L/min.
10 L/min.
10 L/min.
80 L/min.
4
20 L/min.
0
35 L/min.
P T
A B
P T
-4
20 L/min.
A B
40 L/min.
20
35 L/min.
4
100
-20
A B
-10
L/min.
ELDFG-03- -3C2/3C40
L/min.
60
40
VDC Input Voltage 20
-4
-10 -8
0
30
8 10
Input Voltage VDC
-40
80
40
VDC Input Voltage 10
0
-10
20 L/min.
Flow Rate
■
EH SERIES
Step Response
Viscosity : 30 mm2/s
The values were measured on independent valves. They vary by circuit.
ELDFHG-01-35-3C2/3C40
Supply Pressure : 20 Kgf/cm
Flow Rate : 35 L/min.
AB
ELDFHG-01-35-3C2P
2
AB
P T
Step Signal
P T
-100%
0
35 L/min.
100%
Travel of Spool
Step Signal
0
-100%
0
Supply Pressure : 20 Kgf/cm2
Flow Rate : 35 L/min.
0
Travel of Spool
0
0
AB
P T
P T
20 ms
100%
Step Signal
20 ms
A B
0
0
35 L/min.
100%
0
20 ms
Travel of Spool
0
20 ms
0
Travel of Spool
0
0
100%
35 L/min.
0
-100%
Step Signal
0
35 L/min.
0
-100%
ELDFG-03-80-3C2/3C40
ELDFG-03-80-3C2P
Supply Pressure : 40 Kgf/cm
Flow
Rate : 80 L/min.
AB
2
Supply Pressure : 40 Kgf/cm2
Flow Rate : 80 L/min.
AB
P T
P T
20 ms
Travel of Spool
0
-100%
Step Signal
20 ms
0
0
Travel of Spool
0
0
Step Signal
0
-100%
-100%
A B
Travel of Spool
■
80 L/min.
0
-100%
AB
P T
Step Signal
0
80 L/min.
P T
+100%
0
80 L/min.
100%
0
20 ms
0
Step Signal
0
Travel of Spool
+100%
0
80 L/min.
100%
0
0
H
0
20 ms
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
■
Frequency Response
Input Signal : 0±25 %V
Primary Pressure : 140 Kgf/cm2
Viscosity : 30 mm2/s
ELDFG-03-80-3C2/3C40
-5
-100
-150
-200
-10
-15
-20
5 7 10
20
Gain
Phase
50 70100
0
0
-50
-5
-100
-150
2
5 7 10
20
Gain
-10
-15
-20
Frequency
(Hz)
50 70100
0
0
-50
-5
-100
Phase
-150
Gain (dB)
-50
2
Gain (dB)
0
Frequency
(Hz)
Phase (deg.)
0
Gain (dB)
Phase (deg.)
Frequency
ELDFG-03-80-3C2P
Phase (deg.)
ELDFHG-01-35-3C2/3C40/3C2P
2
5 7 10
20
(Hz)
50 70100
Gain
-10
Phase
-15
-20
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
5
EH SERIES
■
Spare Parts List
List of Seals
Name of Parts
Part Numbers
Qty.
ELDFG-01-
ELDFG-03-
ELDFG-01-
ELDFG-03-
O-Ring
Fastner Seal
SO-NB-P18
SG-FCF-4
SO-NB-A128
SG-FCF-4
2
2
2
2
Fastner Seal
O-Ring
TK280152-0
SO-NB-P9
TK280152-0
SO-NB-A014
1
4
1
4
List of Seal Kits
Model Numbers
Seal Kit Number
ELDFG-01ELDFG-03-
KS-ELDFG-01-10
KS-ELDFG-03-10
■
Solenoid Assembly
Valve Model Number
Solenoid Assy.
ELDFG-01-※-※-XY-10
E318-Y06M2-14-5007
E318-Y06M2-14-L-5007
E324-Y12M2-28-10
E324-Y12M2-28-L-10
ELDFG-03-※-※-XY-10
6
Qty.
1
1
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
EH SERIES
Two Stage Type Directional and Flow Control Valves
Specification
Model Numbers
ELDFHG-04
Description
Max. Operating Pres.
Kgf/cm2
ELDFHG-06
350: 350
500: 500
350: 350
500: 500
350
“T” Port : 350
“P” Port : 210
500
“T” Port : 250
“P” Port : 210
350
Rated Flow Valve
L/min.
Pres. Difference: 15 Kgf/cm2
280
Proof Pressure at Return Port *1
(External Drain)
Kgf/cm2
“T” Port : 315
“Y” Port : 210
Proof Pressure at Return Port
(Internal Drain)
Kgf/cm2
2
Pilot Pressure *
Kgf/cm2
210
15 - 315
350 : 16 L/min. or
more
16 L/min. or more
500 : 19 L/min. or
more
Pilot Flow *3
Null Leakage *4 Ps = 140 Kgf/cm2
Pp = 140 Kgf/cm2
3C2: 3 L/min. or less 3C40: 4 L/min. or less
3C2P: 10 L/min. or less
Step Response
(Typical Rating)
(0
100%) Pp = 140 Kgf/cm2
Frequency Response (0±25% V, Phase)
Pp = 140 Kgf/cm2
Water - Proofness
350: 15 ms
500 : 18 ms
350: 66Hz
500: 39 Hz
13 ms
46 Hz (-90 degrees)
IP64
Operating Temperature Type
-15 to +60 °C
Spool Type
3C2:
3C2P:
Graphic Symbols
3C40:
(Zero Rap)
Approximate Spool Stroke to Stops
Main Spool End Area
±5 mm
cm2
7.1
Rated Current
Coil Resistance
350: ±5 mm
500: ±5 mm
8
Approx. Mass
T
B
P
T Y
B
P
T
SOL a
SOL b
A
A
Y
SOL b
Internal Pilot /
Internal Drain Type
A
B
P
T
350: 18
500: 19
10
SOL a
*1 Return pressure should be less than the actual supply pressure.
*2 Pilot pressure should be between 15 Kgf/cm2 and 35 Kgf/cm2 , and should
exceed 60% of the actual supply pressure to main valve.
*3 Pilot flow is calculated with the above step response time at pilot pressure
140 Kgf/cm2.
*4 Added up leakage of main and pilot spools are stated.
■
P
Internal Pilot /
External Drain Type
3.9 Ω
Kg.
B
SOL a
Max. 2.5 A
20 °C
A
SOL a
SOL b
X
External Pilot /
External Drain Type
SOL b
X
External Pilot /
Internal Drain Type
H
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
■
■
Model Number Designation
F-
ELDFH
G
Special
Seals
Series Number
F:
Special Seals
for
Phosphate
Ester Type
Fluids
(Omit if not
required)
ELDFH:
High Response
(Two Stage) Type
Proportional
Electro-Hydraulic
Directional and
Flow Control
Valves
Type of
Mounting
-04
-280
-3C2P
-XY
-E
T
-10
Valve
Size
Rated
Flow
L/min.
Spool Type*1
Direction
of Flow
Pilot
Connection
Drain
Connection
Design
Number
04
280 : 280
None:
Internal
Pilot
None:
Internal
Drain
E:
External
Pilot
T:
External
Drain
3C2
G:
Sub-Plate
Mounting
3C40
3C2P
06
350 : 350
500 : 500
XY:
Meter-In
Meter-Out
10
(Zero Lap)
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
7
EH SERIES
■
Applicable Power Amplifiers
For stable performance, it is recommended that Yuken’s applicable power amplifiers be used (for details see page 16
of EIC-H-1008).
■
Attachment
Installation condition
Model Numbers
Socket Head Cap Screw
Qty.
M6x55Lg.
2
ELDFHG-04
ELDFHG-06
M10x60Lg.
4
M12x85Lg.
6
ELDFHG-04-280-
-XY-
-
-10
Connector
The direction can be altered
to every 90 degree angles.
Pressure Port "P"
Pilot Pressure Port "X"
Tank Port "T"
341
77
101.6
10.5 Dia. x Thru.
17.5 Dia. Spotface
4 Places
35
DIMENSIONS IN
MILLIMETRES
1,2: Power Supply Terminal
3: Earth Terminal
Pilot Drain Port "Y"
Cable Departure
Cylinder Port "B"
Cable Applicable: Outside Dia. 4.5-7 mm
Conductor Area 0.5-0.75 mm²
6.4 Dia. x Thru.
11 Dia. Spotface
Cable Departure
1: SIG
2 Places
Cable Applicable:
Cylinder Port "A"
Air Vent
3 Hex.
2 Places
3: COM
... Outside Dia. 8-10 mm
Conductor Area
... 0.75-1.5 mm²
2: CAR
Position Sensor
for Pilot Spool
SOL a
Air Vent
2.5 Hex.
SOL b
Position Sensor
for Main Spool
13.5
1: SIG
130
3: CAR
8
Locating Pins
3 Dia.
2 Places
2: COM
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
4
38
46
45
82
136
Air Vent
3 Hex.
3 Places
180
194
206
50
10.5
69.9
91
34
Mounting Surface
(O-Rings Furnished)
EH SERIES
-
-XY-
-
-10
Connector
The direction can be altered to
every 90 degree angles.
55
53.2
DIMENSIONS IN
MILLIMETRES
Pressure Port "P"
Cable Departure
Cable Applicable:
Outside Dia.
... 8-10 mm
Conductor Area
... 0.75-1.5 mm²
92.1
Pilot Drain Port "Y"
46
13
118
13.5 Dia. x Thru.
20 Dia. Spotface
6 Places
Tank Port "T"
350: 371
500: 375
130.2
1,2: Power Supply Terminal
3: Earth Terminal
77
Pilot Pressure Port "X"
Cylinder Port "A"
Cylinder Port "B"
Air Vent
3 Hex.
3 Places
Cable Departure
Cable Applicable:
Outside Dia.
... 4.5-7 mm
Conductor Area
... 0.5-0.75 mm²
1: SIG
2: CAR
3: COM
Position Sensor
for Pilot spool
SOL a
Air Vent
2.5 Hex. Soc.
SOL b
52
64
96
162
206
220
Air Vent
3 Hex.
3 Places
232
ELDFHG-06-
Position Sensor
for main spool
Mounting
6 Dia.
Surface
(O-Rings Locating Pins
2 Places
Furnished)
1: SIG
156
2: COM
3: CAR
Dimensions of valve mounting surface
ELDFHG-06
101.6
76.7
50
34
T
19.1
17.5
16
57.1
X
20 Dia.
4 Places
(Port "P", "T", "A", "B")
65.8
88.1
3.6 Dia. x 20 Deep
2 Places
Model Numbers
“C” Thd.
“D” Thd.
“E” mm
“F” mm
ELDFHG-04
M6
M10
12
17
ELDFHG-06
━
━
━
━
"H" Thd. x "J" Deep
6 Places
P
Y
92.1
74.6
18.3
71.4
69.8
55.6
14.2
1.6
"C" Thd. x "E" Deep
2 Places
"D" Thd. x "F" Deep
4 Places
29.4
A
B
17.5
29.5
100.8
“H” Thd.
“J” mm
M12
24
━
H
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
ELDFHG-04
7 Dia. x 8 Deep
2 Places
11 Dia.
2 Places
(Port "X", "Y")
130.2
112.7
94.5
77
53.2
6 Dia.
2 Places
(Port "X", "Y")
96.9
Prepare a mounting surface as shown to the below.
Also finish it finely.
73.1
■
6
11.5
ELDFG-06-350 :
27 Dia.
4 Places
ELDFHG-06-500 :
32 Dia.
4 Places
(Port "P", "T", "A", "B")
━
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
9
EH SERIES
■
2
Input Voltage vs Flow Rate Valve Pres. Diff. : 10 Kgf/cm
: 30 mm2/s
Viscosity
ELDFHG-04
ELDFHG-06
L/min.
400
Flow Rate
AB
300
PT
200
Input Voltage VDC 100
700
600
AB
400
P T
Input Voltage VDC
200
-12 -10 -8 -6 -4 -2
-12 -10 -8 -6 -4 -2
-200
AB
-300
P T
Flow Rate
0 2 4 6 8 10 12
-100 Input Voltage
VDC
-400
AB
500 L/min.
-600
-700
PT
L/min.
Input Voltage VDC
L/min.
Viscosity : 30 mm /s
ELDFHG-04
ELDFHG-06
L/min.
1800
1600
1400
1200
1000
800
600
400
200
2800
ELDFHG-06-500
Flow Rate
Flow Rate
6 8 10 12
2
Load Flow Characteristics
L/min.
350 L/min.
0 2 4
-200
350 L/min.
-400
■
500 L/min.
Flow Rate
Flow Rate
L/min.
2400
2000
1600
1200
ELDFHG-06-350
800
0
50
100
150
200
250 300
Kgf/cm²
350
400
Load Press. Diff.
0
50
100
150
200
250 300
350
Kgf/cm²
Load Press. Diff.
■
Step Response (Example)
Viscosity : 30 mm2/s
ELDFHG-04
AB
AB
Step
Signal
+100%
0
0
0
10 ms
0
Travel of
Spool
0
AB
Step
Signal
Travel of
Spool
10 ms
0
Travel of
Spool
0
Step
Signal
PT
-100%
0
0
Travel of
Spool
0
0
10 ms
0
0
AB
PT
0
Step
Signal
Travel of
Spool
0
-100%
0
0
10 ms
PT
0
-100%
0
0
0
10 ms
-100%
■
+100%
0
+100%
AB
0
PT
+100%
+100%
Travel of
Spool
Step
Signal
+100%
0
ELDFHG-06-500
AB
PT
PT
Step
Signal
ELDFHG-06-350
10 ms
-100%
-100%
Frequency Response Input Signal : 0±25 %
Hydraulic Circuit : Port A/B Closed
Supply and Pilot Pressure : 140 Kgf/cm2
Viscosity : 30 mm2/s
10
80
120
160
200
20
Phase
Gain
Frequency
Hz
50 70 100
0
0
40
-4
-8
80
120
160
200
2
5 7 10
20
Phase
Gain
ELDFHG-06-500
Frequency
Hz
50 70 100
0
0
40
-4
-8
80
120
160
200
2
Gain (dB)
-4
-8
5 7 10
Gain (dB)
40
2
Phase (deg.)
0
Gain (dB)
Phase (deg.)
Frequency
0
ELDFHG-06-350
Phase (deg.)
ELDFHG-04
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
5 7 10
20
Phase
Gain
Hz
50 70 100
EH SERIES
■
Spare Parts List
List of Seals for ELDFHG-04
Name
of
Part Numbers
Qty.
Parts
O-Ring
SO-NB-P39
1
O-Ring
SO-NB-P22
4
O-Ring
O-Ring
O-Ring
SO-NB-P9
SO-NB-A029
SO-NB-A012
2
1
2
List of Seals for ELDFHG-06
Name of Parts
Part Numbers
ELDFHG-06-350-
ELDFHG-06-500-
Qty.
O-Ring
O-Ring
SO-NB-P40
SO-NB-A135
SO-NB-P14
1
4
O-Ring
O-Ring
SO-NB-P10
SO-NB-A123
SO-NB-A126
2
1
O-Ring
SO-NB-A030
2
SO-NB-A135
List of Seal Kits
ELDFHG-04
ELDFHG-06-350ELDFHG-06-500-
Seal Kit Number
KS-ELDFHG-04-10
KS-ELDFHG-06-350-10
KS-ELDFHG-06-500-10
H
Proportional Electro-Hydraulic
Direct Operated Type Directional
and Flow Control Valve
Model Numbers
EH Series
Proportional Electro-Hydraulic Direct Operated Type
Directional and Flow Control Valve
11