CURRENT-CONTROLLED TYPE DIRECTIONAL AND FLOW CONTROL VALVE（EHD3）
This directional and flow control valve enables remote control of the direction and flowof hydraulic fluid by controlling the solenoid input current. The flow can be controlled
steplessly in proportion to the current value.

■Features
1. This valve simplifies hydraulic circuit configuration.
2. The mounting dimensions of a size 06 valve are interchangeable with those of asolenoid valve. Therefore, counterbalance circuits, cylinder circuits, etc. can be
simply and compactly configured together with stack valves.
NOTE: Due attention must be paid to the following points when a size 03 valve isused.
1) Drain piping is necessary. When a subplate other than model
SEHD03-04** is used, measures for drainage must be considered.
(Drain piping port is provided on the solenoid valve.)2) The valve cannot be used together with HK3K-R-Q*-03.
B3) When the valve is used together with HR3Hｰ*ｰ *-03, the drainage fromD
the solenoid valve flows to the R port. Therefore, the pressure at the R
port must be 0.2 MPa.
3. Fluid can be used in the same level of contamination management as ordinarymanagement.
4. The power consumption of the solenoid is as low as 3.6 W.
If the load pressure sensitive type valve is used, since the pump pressure iscontrolled to the minimum required level corresponding to the variations in loadpressure, the required power can be drastically reduced.
5. If the valve with internal feedback (EHD3-06-F type) is used, the throttle valve
position is feedback controlled. This reduces hysteresis to enable precision control.
● The valve can be used for fluids equivalent to ISO VG32 to 56.
● The allowable maximum fluid temperature is 60ºC.
● If a subplate is necessary, please order one separately.

■Specifications
Size 03

Nominal size / type

G

Variable throttle
type

Item

Load pressure
sensitive type

Size 06 (includes the model with internal feedback)Pressure
Load pressurecompensation
sensitive type
type

Pressurecompensation
type

Variable throttle
type

21

CURRENT CONTROLLED TYPE CONTROL VALVES

Max. Operating pressure

MPaMax. Controllable flow

L/minPermisstble backpressure at R port

MPa

21MPa

0.2

15060

Permisstble backpressure at drain port
Drain flow

L/min

Supply flow to P port

L/min

Relief valve pressureadjustment range

3 or less

3.5 or less─

80

─

─

190

─

MPa

─

3.5 to 21──

3.5 to 21

─Pressure reducing valvepressure adjustment range MPa──

3.5 to 21──

3.5 to 21■Solenoid characteristics
Model

Coil input current

Coil resistance

ESHｰ0103ｰD30 to 300 mA

34 Ω■Description of the model designation

EHD3ｰ（Y）***（**）ｰG3 *** ｰ ** ｰ（F）
No code: Without internal feedback
F: With internal feedback NOTE: Internal feedback (EHD3-F) is available only for size 06
Nominal size 03：
06：
BCA: Closed center
BGA: ABR connection (only for meter-in control)
3-position type
Gasket-connection type (ISO standard)
No code: Variable throttle type
P:Pressure compensation type
PG: Pressure compensation type with pressure reducing valve
L:Load pressure sensitive type
Only for meter-in control
LR: Load pressure sensitive type with relief valve
Max. controllable flow Size 03: 60
Size 06: 150
No code: Meter-out control
Y:Meter-in control
Max. operating pressure 3: 21 MPa
Current-controlled type directional and flow control valve

G−14■Valve types
Variable throttle type

Load pressure sensing type
Meter-inPressure compensation type
Meter-inMeter-out
With pressure
reducing valve

Valve type

Meter-inMeter-out─With relief valve

─Model

EHD3ｰY***ｰ
G3***ｰ**（ｰF）

EHD3ｰ***ｰG3BCAｰ**（ｰF）

EHD3ｰY***LｰG3***ｰ**（ｰF）

EHD3ｰY***LRｰG3***ｰ**（ｰF）

EHD3ｰY***PｰG3***ｰ**（ｰF）

EHD3ｰY***PGｰ
G3***ｰ**（ｰF）

EHD3ｰ***PｰG3BCAｰ**（ｰF）Flow control○○○○○○○Pressure compensation──○

○

○

○

○

Load pressure sensing─

─○○

───

Pump unloading at neutral position──○○───Relief control─

──○──

─

Pressure reducing control─────○─

SymbolFunction(NOTE)In Model Designation, “***” indicates BCA or BGA. Please specify either of them.

NOTE 1: With size 03, the “b” and “a” positions are reversed.
NOTE 2: Internal feedback is available only for size 06.

■Outside dimensions
EHD3ｰ（Y）60**ｰG3***ｰ03

4ｰRc1/2

Rc1/4

SEHD03ｰ04T

NOTE 1: This part is added for the load pressure sensitive type andpressure compensation type.
NOTE 2: Dimensions in parentheses are for EHD3-Y60P(G)-G3***-03.
NOTE 3: The dimension is for EHD3-Y60LR -G3***-03.
Y60PG

1194

20.6
47.6
54

36

P

164

36112

60

B

94

28

4ｰφ176246

1.6
9.5 16.6

114ｰφ13×18

Mass: Max 12.6 ㎏

Mass: 1.9㎏

153111160(NOTE1)
55

56

105

4ｰφ114ｰM8

4ｰφ11SEHD03ｰ04F1

φ670

SOLb142(Used if gasket
DR is unavailable)

20.6
47.6
5439.7
79.4
102

φ630
40DR114DR external piping port Rc 1/4

SOLa

GRA

16ｰM10×17

Rc1/4
145

87

28181
203

Mass: 7.7 ㎏

EHD3ｰ（Y）150ｰG3***ｰ06

328 Max.

Lock nut(NOTE 1)

Lock nut

B port side
Max. control flow adjustment screw(NOTE 2)340 Max.

NOTE 1: This part is added for the load pressure sensitive type
and pressure compensation type.
NOTE 2: The dimension is for EHD3-Y150LR -G3***-06.
Y150PG

A port side
Max. control flow adjustment screw

Mass: Max 35 ㎏

For the sub-plate SHD06ｰ**T1（A）, refer to page L-3.

G−15

CURRENT CONTROLLED TYPE CONTROL VALVES

54(NOTE1) (NOTE2)9061（75）
100 (NOTE1)
295

4ｰM8

4ｰφ17.53514146DR1.69.5 16.646

B474121R

4ｰφ1176

PA

4ｰM8×13
Prepared holedepth 1518124672
80 (NOTE1)

95(NOTE3)

5ｰJISB2401ｰP1267
58
40
291392114

2ｰJISB2401ｰP9(For EHD3- (Y) 60-G3***-03)

4ｰφ11SEHD03ｰ04T1

■Outside dimensions
EHD3ｰ（Y）150（**）ｰG3***ｰ06ｰF（Unit: ㎜）
Model

View AGMass: Max 36 ㎏

─EHD3ｰ150ｰG3BCAｰ06ｰF

─

EHD3ｰY150LｰG3***ｰ06ｰF

85

EHD3ｰY150LRｰG3***ｰ06ｰF

85

EHD3ｰY150PｰG3***ｰ06ｰF

85

EHD3ｰY150PGｰG3***ｰ06ｰF

85

EHD3ｰY150PｰG3BCAｰ06ｰF

85

CURRENT CONTROLLED TYPE CONTROL VALVESNOTE: Wiring method
For terminals A, B, C, D, E, and F in View A, refer to the explanation of the terminal function for ECAD-D1FB-* (amplifier for internal feedback)on page G-19.

G−16

A

EHD3ｰY150ｰG3***ｰ06ｰF