Cat. E-Edit0E

EDIRECTIONAL CONTROLS●Solenoid Operated Directional Valves………………………………………… Page E-5●Solenoid Controlled Pilot Operated Directional Valves………………… Page E-5●"G" Series Shockless Type Directional Valves…………………………… Page E-5●Pilot /Manually/ Mechanically Operated Directional Valves………… Page E-5●Poppet Type Directional Valves……………………………………………… Page E-100●Check /Pilot Controlled Check Valves…………………………………… Page E-136

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■ Directional Valves
These valves are used for shifting oil flow direction of hydraulic circuit and for actuator starting/stopping as well as the operating direction
shifting of actuator.

● Solenoid Operated Directional Valves● Solenoid Controlled Pilot Operated Directional Valves● "G" Series Shockless Type Directional Valves● Pilot/Manually/Mechanically Operated Directional Valves● Poppet Type Directional Valves● Check/Pilot Controlled Check Valves

E-2

Directional Valves

DIRECTIONAL CONTROLS
Hydraulic Fluids■ Type of Fluids
Any type of hydraulic fluid listed in the table below can be used.
Remarks

Petroleum Base Oils

Use fluids equivalent to ISO VG32 or VG46.

Synthetic Fluids

Use phosphate ester or polyol ester type. When phosphate ester
type fluid is to be used, prefix “F-” to the model number
because a special seal (fluororubber) will be used.

Water Containing Fluids

Use water-glycol fluids or W/O emulsion type fluids.

Notes 1: Synthetic fluids not applicable with G-DSG and G-DSHG series valves.
2: For two types of manually operated directional valves, DMT- 06 and DMT- 10 , only petroleum base oils and polyol ester type fluids
10*
06*
are available.
3: Water-glycol fluids cannot be used for two types of solenoid operated poppet type two-way valves; CDST-03＊ and CDSG-03.
4: For use with hydraulic fluids other than those listed above, please consult your Yuken representatives in advance.

■ Recommended Viscosity and Oil Temperature
Use hydraulic fluids which satisfy the both recommended viscosity and oil temperature given in the table below.
NameViscosity

Oil Temperature

Contamination Degree

DSG-005 series Solenoid Operated Directional Valves
DSG-007 series Solenoid Operated Directional Valves

20 - 200 mm2/s−15 - ＋60℃

Within NAS Grade 11

Solenoid Operated Directional Valves(Except for DSG-005/007 Series)
Solenoid Controlled Pilot Operated Directional Valves
Manually Operated Directional Valves
Mechanically Operated Directional Valves
Poppet Type Solenoid Operated Directional Valves
Shut-off Type Solenoid Operated Directional Valves
Check Valves
Pilot Controlled Check Valves
In-Line Prefill Valves

15 - 400 mm2/s−15 - ＋70℃

G Series
Shockless Type Solenoid Operated Directional Valves
Shockless Type Solenoid Controlled Pilot Operated
Directional Valves

EDirectional Valves

Type of Fluids

Within NAS Grade 12

15 - 200 mm2/s−15 - ＋60℃

■ Control of Contamination
Due caution must be paid to maintaining control over contamination of the hydraulic fluids which may otherwise lead to breakdowns andshorter the life of the valve. Please maintain the degree of contamination above and use 25 µm or finer line filter (In case of DSG-005/007
series Solenoid Operated Directional Valves use 20 µm or finer line filter).

Directional ValvesE-3

■ Water-Proof, Dust-Proof and Vibration-Resistance

ItemComplianceStandardType

Descriptions

Current JIS F 8001 Class 1 water spray Drip-proof construction
Water-proof testfor marine
electric appliance Class 2 water spray Froth-proof construction

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Damp-proof test M1 Test to examine damp-resistance of parts×○

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Test to examine functions of part underhigh temperature and high humidity

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Test to examine functions of parts which
are likely to be exposed to water splash.

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Test to examine functions of parts which are indirectly
×
exposed to stormy weather or water splash.

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Water-proof

Protection Class 2: Not affected by water drip falling at
Drip-proof type (2) vertical angle of 15 degrees or less.

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Protection Class 3: Not affected by rain falling at verticalRain-proof type angle of 60 degrees or less.

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Dust-proof

JIS C 0920
Water-proof test for Protection Class 4: Not affected by water drip from any
electromechanical Froth-proof type direction.
parts and protectionlevel against the Protection Class 5: Not affected by jet flow from any
ingress of solid objects Jet-flow proof type direction.
International
ElectrotechnicalCommission★2（I.E.C）
Pub. 529
Protection
Fully protected from entry of dust.
JIS C 0920 Class 6
Water-proof test forelectromechanicalparts and protectionlevel against theingress of solid objects

Vibration-resistanceResonace test Vibration range: 7-59.5 Hz
Duplex amplitude: 0.1 m(IC)Grade 1: duplex amplitude-0.5 mm
FixedJIS C 0911 frequency
Frequency: Grade 2: duplex amplitude-1.2 mm
Vibration test for resistance test 20 Hz
Grade 3: duplex amplitude-1.8 mm
small electric (IIC)
Grade 4: duplex amplitude-2.4 mm
appliances
Grade 1: duplex amplitude-0.3 mm
Variable
Frequency
frequency
Grade 2: duplex amplitude-0.5 mm
range:
resistance test
7-59.5Hz(IIIC)
Grade 3: duplex amplitude-0.75 mm
Class 1:JIS D 1601 mainly forVibration test for parts ofautomobile parts passenger
car×○

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Grade A: Parts mounted on spring of body×or chassis having relatively high vibration.

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Grade B: Parts mounted on spring of bodyor chassis having relatively high vibration.

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Grade C: Parts mounted on spring of body×or chassis having relatively low vibration.

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★1. No-spring detented type (2D＊) and No-spring type (2N＊) can be used when energised continous for position holding.
★2. For outdoor use, protect equipment with a cover, etc., to prevent direct exposure to water.
For the terminal-box type connecting port for electric wire tube, use each standard tube and make bushing construction.
★3. DSP＊-01 can be used.

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CDS＊

○JIS D 0203 Damp-proofDamp-proof and test M2
Water-proof test Splash-proof★2
for automobile test R1
partsSplash-proof
test R2International
ElectrotechnicalCommission（I.E.C）
Pub. 529(L−/S−/T−)DSG−01
E−DSG−01DSG−
G−DSG−01
DSHG−01 (L−/S−/E−/T−) G−DSG−03 DSLG
005
DSHG−03
DSLHG
DSG− (S−)DSHG−04 DSG−03
G−DSHG−04
DSP＊
007 (S−)DSHG−06
G−DSHG−06(S−)DSHG−10

Directional Valves

Solenoid Operated Directional Valves
Solenoid Controlled Pilot Operated Directional Valves"G" Series Shockless Type Directional Valves
Pilot/Manually/Mechanically Operated Directional Valves

Valve TypeMax.
Graphic Symbols Operating
Pressure
1MPa252516

Solenoid Operated
Directional Valves

ABba
PT

Max. Flow L/min
251020Electronic Relay
Incorporated
Solenoid Operated
Directional Valves
Explosion Proof (Flameproof)
Type Solenoid Operated
Directional Valves
Explosion Proof (Increased Safety)
Type Solenoid Operated
Directional Valves

Solenoid Controlled
Pilot Operated
Directional Valves
G Series Shockless Type
Solenoid Operated
Directional Valves
G Series Shockless Type
Solenoid Controlled Pilot
Operated Directional Valves

Pilot Operated
Directional Valves

PTA

Bb

E-16

L−DSG−01

25bP

T

DSG−01

L−DSG−03

ABPT

DSG−03
E−DSG−01

16T−S−DSG−01AB

PTab31.5
21

A

T−S−DSG−03
DSG−01−＊＊＊−＊＊X＊PE-66

DSG−03−＊＊＊−＊＊X＊
DSG−01−＊＊＊−＊＊Y＊

E-68

DSG−03−＊＊＊−＊＊Y＊
DSHG−01
DSHG−03

T

E-69

DSHG−04/S−DSHG−04bY

E-62

T−DSG−03

25

B

aE-62

T−DSG−01

2531.5E-53

E−DSG−03

35b

E-37

S−DSG−03

31.5
a

E-22

S−DSG−013525a

500 1000 2000 5000

DSG−00716

a31.5

DSHG−06/S−DSHG−06
DSHG−10/S−DSHG−10

A B
ab

G−DSG−0125AB

PTA

BPTA

B

P

Tab
YX

ABPTY

PBT

E-94

G−DSHG−06

31.5

31.5

A

G−DSHG−04

25

21

E-94

G−DSG−03

P T

Manually Operated
Directional Valves
Mechanically Operated
Directional Valves

B

200

E-10

31.5
A

100

DSG−005

25

Low Wattage (5W) Type
Solenoid Operated
Directional Valves

50PageDHG−0406

Thread Connection
（DMT）

03

06

10

Sub-plate Connection
（DMG）
01

03

04

06

702
Rotary（DR TG）

25

Cam Operated（DC TG） 01

Directional Valves

03

10

10

E-97
E-98

E-99

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■ Spool Types

Spool types are classified to the condition of flow at the neutral position.

Spool Types“2”“3”“4”

Closed Center
All Ports

Open Center
All Ports

Open Center
A, B&T

Open Center“40” A, B&T
Restricted Flow

“5”

Open Center
P, A&T

Open Center P&T“6” (Closed Crossover)

Open Center P&T“60”(Open Crossover)

Open Center All Ports“7” Restricted Flow

“8”

“9”

A

B

P

T

A

B

P

T

A

B

P

T

A

B

PT

A

B

PT

A

B

PT

A

B

P

T

A

B

Schematic Drawing(Center Position)

T B P AT B P AT B P A

Open Center
P, A&B

Open Center
“11”
P&A

Open Center“12”A&T

Functions and Applications
Holds pump pressure and cylinder position at neutral. Careshould be paid if used as a 2-position type because shock
occurs when each port is blocked in transit.
Pump can be unloaded and actuator is floating at neutral.
If a 2-position type is used, shock is reduced as each ports isreleased to tank in transit.
Pump pressure is held and actuator is floating at neutral.
2-position type is used when system pressure is required to beheld in transit. Shock during transit is less compared to spool
type “2”.
In a variation of spool type “4”, a restrictor is provided in A-T
and B-T ports. Making it faster at stopping the actuator.

T B P AIt can be used when a pump is unloading at neutral and actuatoris halted at one way flow.
T B P A

Pump is unloading and actuator position held at neutral.
Suitable for series operation.
T B P A

It is a variation of spool type “6”.
Shock is reduced as each port is released to tank on transit.
T B P A

Mainly used as a 2-position type. Shock is reduced on transit.
PTA

BPTA

B

T B P A

2-Way

Open Center“10”
B&T

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Graphic Symbols

T B P APump pressure and cylinder position is held at neutral in thesame way as spool type “2”.
It is used as 2 way type.

Regenerative circuit is provided at neutral.
PTA

BPTA

BPTA

BP

T

T B P A

Prevent actuator from one direction drift by leakage of P port atneutral.
T B P A

Halt actuator movement positively at B, T ports blocked P, Aports connected at neutral.
T B P A

Prevent actuator from one direction drift by leakage of P port atneutral.
T B P A

Directional Valves

DIRECTIONAL CONTROLS■ Mounting Surface

Mounting surface dimensions conform to ISO 4401, Hydraulic fluid power-Four-Port directional control valves mounting surfaces.

ISO Code of Mounting Surface

DSG−007

ISO 4401−02−01−0−05(L−/S−/E−/HE−/T−/G−) DSG−01
DSHG−01
DMG−01
DCG−01

ISO 4401−03−02−0−05(L−/S−/E−/T−/G−) DSG−03
DMG−03
DCG−03

ISO 4401−05−04−0−05

DSHG−03

ISO 4401−05−05−0−05(S−/G−) DSHG−04
DHG−04DMG−04

ISO 4401−07−07−0−05(S−/G−) DSHG−06
DHG−06
DMG−06

ISO 4401−08−08−0−05(S−) DSHG−10
DHG−10DMG−10

ISO 4401−10−09−0−05

E
Directional Valves

Model Numbers

Note: Mounting surface of DSG-005 is YUKEN original standard.

Interchangeability in Installation between Current and New Design
Model change has been made on the following product.
The difference between current and new design has been described on the paragraph of “Interchangeability inInstallation between Current and New Design.” Refer to relevant pages on each series.
Model Numbers

NameCurrrent

DSG–005 Series Solenoid
Operated Directional
DSG-005-＊＊＊-＊-30
Valves
DSG–01 Series Solenoid
Operated Directional
ValvesDSG−005−＊＊＊−＊−40−40
DSG−005−＊＊＊−＊−NN1

Interchangeability Related
in Installation Page

Major Changes
High Flow
Low Pressure Drop
● Din-connector type solenoid inaddition●Yes—●High Pressure
High Flow● High Max. T-Line Back Pressure● Low Pressure Drop
● Small Mass●

（ T- ）DSG-01-＊＊＊-＊-60 （ T- ）DSG-01-＊＊＊-＊-70
S-

Low Wattage (5W) Type
Solenoid Operated
E-DSG-01-＊＊＊-＊-60
Directional Valves
Explosion Proof(Flameproof) Type
Solenoid Operated
Directional ValvesNew

DSG-01-＊＊＊-＊X＊-50
DSG-03-＊＊＊-＊X＊-50

DSHG-01-＊＊＊-＊-13
DSHG-03-＊＊＊-＊-13
Solenoid Controlled
Pilot Operated Directional (S-) DSHG-04-＊＊＊-＊-51(S-) DSHG-06-＊＊＊-＊-52
Valves(S-) DSHG-10-＊＊＊-＊-42
G Series Shockless Type
G-DSG-01-＊-＊＊＊-＊-50
Solenoid Operated
G-DSG-03-＊-＊＊＊-＊-50
Directional Valves

S-Yes

E-32

E-DSG-01-＊＊＊-＊-70

Yes

E-61

DSG-01-＊＊＊-＊X＊-70
DSG-03-＊＊＊-＊X＊-51

Yes

E-67

DSHG-01-＊＊＊-＊-14
DSHG-03-＊＊＊-＊-14(S-) DSHG-04-＊＊＊-＊-52(S-) DSHG-06-＊＊＊-＊-53(S-) DSHG-10-＊＊＊-＊-43

Yes—G-DSG-01-＊-＊＊＊-＊-51
G-DSG-03-＊-＊＊＊-＊-51YesE-96

Directional Valves●●High Flow

Change Cable Lead-in PortHigh Pressure● High Flow●
●Pilot valve has been changed fromDSG-01, 60 design to 70 design.

●●Use Digital Control Amplifier

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■ Solenoid Operated / Solenoid Controlled Pilot Operated Directional Valves

Wide Range of Models – Choose the optimum valve tomeet your needs from a large selection available.

HS
1100

H ：High Pres., High Flow, Low Pres. Drop Type（S－）DSHG－10

S ：Shockless Type500

P ： Low Pressure Drop TypeE（S－）DSHG－06：Low Wattage, Energy-Saving TypeHSG300（S－）DSHG－04250
Max. FlowHS

G ：Shockless Type [Shifting Time Adjustable]

G－DSHG－06

P160

DSHG－03

L/min

G

G－DSHG－04

HS

120

S－DSG－03

100

HDSG－03

GDSG－01

80634540

E
E

S
E－DSG－03

S－DSG－01

PG

DSHG－01

G－DSG－01

E－DSG－01

150

G－DSG－03

DSG－005/007
162125

31.5

Pressure MPa

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Solenoid Operated / Solenoid Controlled Operated Directional Valves

35

DIRECTIONAL CONTROLS
Instructions● Mounting
DSG−005
DSG−007

No mounting restrictions for any model.

＊−DSG−01＊−DSG−03

No-spring detented models not energised continuously must be installed so that thespool axis L-L’ is horizontal. Otherwise there is no mounting restrictions.

,

LL＊-DSG-01/03

No-spring models not energised continuously must be installed so that the spool axis
L-L’ is horizontal. Otherwise there is no mounting restrictions.

,

L

L＊-DSHG● Energisation
1．On double solenoid valves do not energise both at the same time as it will result in coils burning out.
2．If use No-Spring Type, one of two solenoids should be energised continuously to avoid malfunction.
● Valve Tank Port〔Solenoid Operated / Solenoid Controlled Pilot Operated Directional Valves (Internal Drain Type) 〕
Avoid connecting the valve tank port to a line with possible surge pressure.
Solenoid Operated Directional Valve is wet type, so piping have to constantly fill the tank line with operating oil.
Piping end of tank line should be submerged in oil.

● Shockless TypeIn order to benefit from a shockless operation, it is necessary to fill the tank line withoperating oil.
Only after the tank line has been filled with operating oil should the valve be used ona regular basis.
● Operating Force by Manual Actuator
Take care as the operating force by the manual actuator increases in proportion to thetank line back pressure. (See the graph right.)

Operating Force● Pilot Drain Port for Solenoid Controlled Pilot Operated Directional Valve
Avoid connecting the valve pilot drain port to a line with possible surge pressure.
Solenoid Controlled Pilot Operated Directional Valve is wet type, so piping have to constantly fill the Pilot Operated Directional valve withoperating oil.
150

N0100pt

exce

50
1

E
Directional Valves

DSHG−01
DSHG−03(S−) DSHG−04(S−) DSHG−06(S−) DSHG−10/007-005

SGfor D05/007

DSG-0

234

Tank Line Back Pressure MPa

Solenoid■ Solenoid connector (DIN connector)
The solenoid connector is in accordance with the international
standard ISO 4400 (Fluid power systems and components-Three-pin
electrical plug connectors characteristics and requirements).

■ AC Solenoid
50-60 Hz common service solenoids do not require rewiring when
the applied frequency is changed.

■ DC Solenoid
DC Solenoid is K-series with good reputation.

★Three Characteristics of K-series★
1. Avoid malfunction of computers.
(The surge voltage is low, so these valves do not give badinfluences like noise to electronic devices)
2. The relays last for long time.
(The spark between the relay contacts has been eliminated andtherefore drastically decrease damages of contacts)
3. Time lag on de-energisation is reduced.

■ R type Models with Current Rectifier and DC Solenoid
Specially designed DC solenoid and receptacle (or connector)
containing AC-DC rectifier and transient peak suppressor areprovided. Connection to be made to AC power source as withconventional AC solenoid.
Remarkably high reliability and long life and other advantages
including quiet valve operation. No overheating of coil due to thespool sticking and protection against transient voltage peaks areassured.

■ RQ type Models with Current rectifier and Quick Return Solenoid
Valve characteristics are identical to R type except for the fast return
time of the spool after deenergisation.

■ Insulation Class of Solenoid
Model Numbers
DSG−005, DSG−007(S−/E−/T−) DSG−01
DSG−03, S−DSG−03, E−DSG−03, T−DSG−03
DSHG−01/03/04/06/10
S−DSHG−04/06/10

Solenoid Operated / Solenoid Controlled Operated Directional Valves

Insulation
ClassClass HE-9