Cat. F-Edit0EFMODULES
YUKEN's Modular Valves are stack type valves, and require no piping. They not only rationalise system build, but they also meet thetechnical requirements for a variety of hydraulic systems. Stacking systems is a new era in hydraulics.
The valves have standardized mounting surface conforming to ISO 4401 and optimum thickness for each size. Any hydraulic circuits
can be easily composed by stacking the valves with mounting bolts. The valves can be used widely for hydraulic systems for variousindustries such as machine tools, special purpose machines, ships and steel mill equipment.

Valve TypeMax.
OperatingPressure
MPa005 Series
Modular Valves

25007 Series
Modular Valves2501 Series
Modular Valves

3503 Series
Modular Valves

3504 Series
Modular Valves

3506 Series
Modular Valves

3510 Series
Modular Valves

25Maximum Flow L/min
1235

71020

30

50 70 100

200 300

500 700 1000

Page005

F-7007

F-901

F-11

★101

03

F-47

★2 ★103

F-78

04

F-88

06

10F-98★1. Maximum Flow for Throttle and Check Modular Valves. (MSA/MSB/MSW)★2. Maximum Flow for Reducing Modular Valves with Pressure Adjustment Range “A” is limited to 80 L/min.

F-1

Hydraulic Fluids■ Fluid Types

Any type of hydraulic fluid listed in the table below can be used.
Petroleum Base Oils

Use fluids equivalent to ISO VG 32 or VG 46.

Synthetic Fluids

Use phosphate ester or polyol ester fluids. When phosphate ester fluid is used, prefix "F-" to the model
number because the special seals (fluororubber) are required to be used.

Water-containing Fluids

Use water-glycol fluid.

Note: F or use with hydraulic fluids other than those listed above(ex. W/O type Emulsion), please consult your Yuken representative in advance.

■ Recommended Fluid Viscosity and Temperature

Use hydraulic fluids which satisfy the both recommended viscosity and oil temperature given inthe table below.
Name

005 Series Modular Valves
007 Series Modular Valves

01 Series Modular Valves
03 Series Modular Valves
04 Series Modular Valves
06 Series Modular Valves
10 Series Modular Valves

ViscosityTemperature

15 ─ 200 mm2/s−15 ─ ＋60℃

15 ─ 400 mm2/s−15 ─ ＋70℃

■ Control of Contamination

Due caution must be paid to maintaining control over contamination of the hydraulic fluids which
may otherwise lead to breakdowns and shorten the life of the valve.
Name005 Series Modular Valves
007 Series Modular Valves

01 Series Modular Valves
03 Series Modular Valves
04 Series Modular Valves
06 Series Modular Valves
10 Series Modular Valves

F-2

Contamination

Nominal Filtration

Within NAS1638 ─ Grade 1120μm or lessWithin NAS1638 ─ Grade 1220μm or lessModular Valves

MODULAR VALVESHigh Pressure, High Flow Rate Modular Valves■ Features

1. Installation and mounting space can be minimized.
2. No special skill is required for assembly and any addition or alteration of the hydraulic circuit can be made quickly and easily.
3. Problems such as oil-leaks, vibration and noise which may be caused by piping are minimized, increasing the reliability of the hydraulicsystem.
4. Maintenance and system check-ups can be easily carried out as they are normally installed in stackable units.

■ Specifications
Name
005 Series Modular Valves
007 Series Modular Valves
01 Series Modular Valves
03 Series Modular Valves
04 Series Modular Valves
06 Series Modular Valves
10 Series Modular Valves

Valve
Size

Max. OperatingPressureMPa

Max. Flow
L/min

Number of Stack ★3──25

15

1 to 4 stacks

1／83／81／23／4
1 1／43560（80）★11 to 5 stacks ★435120（160）

1 to 5 stacks ★435300

35500

25

800

★1,2

1 to 5 stacks★1. The values in parentheses represent the max. flow rates for throttle modular valves (MSP) and throttle check modular valves (MSA/MSB/MSW).
★2. M
 aximum flow for reducing modular valves with pressure adjustment range “A” is limited to 80 L/min.
★3. Solenoid operated directional valve is included in the number of stack.
★4. I f the working pressure is above 25 MPa, the maximum number of layers in a stack is 4 including the solenoid operated directional valve.

F● 007 - 10 Series

Mounting surface dimensions conform to ISO 4401 (Hydraulic fluid power four port directional control valves mounting surface) as listed inthe table below.
NameISO Mtg. Surface Code No.

007 Series Modular Valves

ISO 4401−02−01−0−05

01 Series Modular Valves

ISO 4401−03−02−0−05

03 Series Modular Valves

ISO 4401−05−04−0−05

04 Series Modular Valves

ISO 4401−07−07−0−05

06 Series Modular Valves

ISO 4401−08−08−0−05

10 Series Modular Valves

ISO 4401−10−09−0−05

Modular Valves■ Mounting Surface★ Only 005 Series are YUKEN original specification■ Stacking Example● 03 Series
3/8, Solenoid Operated
Directional Valve(DSG-03)

Modular Valves

PTBW

AB

A

B

A

B

Base Plate(MMC-03)

A

F003-C001

Modular Valves

F-3

■ Instructions■ Caution in the selection of valves and circuit designing

The selection of modular valves, to suit a particular function or hydraulic circuit, are made in exactly the same way as conventional valves,
taking into account of the flow and pressure of each valve to be used. In some cases, the stacking system may be restricted, so please refer tothe following instructions for stacking sequence. Please note, that when designing a system using modular stacking valves, due consideration
should be given to working space for future maintenance.

● Stacking sequence when using reducing valves(for "A" or "B" line) and pilot operated checkvalves.
Because reducing valves are spool type, there is aninternal leakage. In the stacking sequence shown inthe drawing left (incorrect), the cylinder moves due toleakage through the pilot pressure line .
Consequently, retaining the position of the cylinderusing a pilot operated check valve becomes
impossible. The stacking sequence shown in thedrawing right (correct) is required in order to retain
the cylinder position.

(Incorrect)

Solenoid Operated
Directional Valve
Pilot Operated Check Valve(for "A&B-Lines")
Reducing Valve(for "B-Line")

P●S tacking sequence when using reducing valves(for "A" or "B" line) and throttle and check valves(for meter-out).
I n B to T flow in the drawing left (incorrect), pressure
is generated atpart with a throttle effect of thethrottle and check valve. Depending upon the pressure
so generated, the reducing valve may perform apressure reducing function which causes a shortage ofoutput power of the cylinder and spoils the smooth
operation of the cylinder.
Therefore, stacking sequence in the drawing right(correct) is required in this combination.

F-4

B

A

P

T

B

A(Correct)

Solenoid Operated
Directional Valve
Throttle and Check Valve(for "A&B-Lines", Meter-out)
Reducing Valve (for "B-Line")
PTB

A

P(Incorrect)

TB

A(Correct)

Solenoid Operated
Directional Valve
Throttle and Check Valve(for "A&B-Lines", Meter-out)
Pilot Operated Check Valve(for "A&B-Lines")
P●S tacking sequence when using brake valves andthrottle and check valves
In the drawing left (incorrect), pressure is generated atpart (a load pressure and a back pressure fromthrottle effect). For structual reasons of the brakevalve, the load pressure and back pressure act to open
the valve, therefore, the setting pressure should be
more than the pressure equal to the load pressure plus
back pressure (Pa + Pb). If the setting pressure is lessthan Pa + Pb, the brake valve acts and brakes themovement of the actuator in operation, this eventually
reduces the speed of the actuator. On the contrary, if
the setting pressure is more than Pa + Pb, shock may
occur when braking the actuator since the settingpressure is too high against the load pressure.
Therefore, the stacking sequence in the drawing right(correct) is required in this combination.

T(Incorrect)●S tacking sequence when using pilot operated
check valves and throttle and check valves (formeter-out).
I n A to T flow in the drawing left (incorrect), pressure
is generated atpart with a throttle effect of thethrottle and check valve.
The pressure so generated acts to shut the pilot
operated check valve and eventually creates an open
and shut operation of the valve repeatedly which may
cause the cylinder to have a knocking effect (the same
effect will occur in the case of B to T flow). Therefore,
the stacking sequence in the drawing right (correct) isrequired in this combination.

(Correct)T

B

A

P(Incorrect)

TB

A(Correct)

Solenoid Operated
Directional Valve
Throttle and Check Valve(for "A&B-Lines", Meter-out)

Brake ValveP

Modular Valves

TBAPT

BA

MODULAR VALVES■ Base Plates and Sub-Plates■ Mounting Bolts

Modular valves are mounted using stud bolts which aresupplied in a kit form. When mounting, see the following
table for tightening torque. After the test run, be sure totighten again firmly within the specified torque.

When mounting the modular valves, use base plates and sub-plates specified
below. If these base plates and the sub-plates are not used, ensure that themounting surface has a good machined finish. (1.6 )005 Series007 Series
01 Series
03 Series
04 Series
06 Series
10 Series

Base Plates
Model Numbers

Consult your Yuken
representative inadvance.

Sub-Plates
Page
─
─

MMC−01−＊−40

F-39

MMC−03−T−＊−21
Consult your Yuken
representative inadvance.

Model Numbers

SeriesPage

Consult your Yuken
representative inadvance.

──DSGM−01＊−31

F-108

F-71

DSGM−03＊−40

F-108

─

DHGM−04＊−20

F-108

─

DHGM−06＊−50

F-109

─

DHGM−10＊−40

F-109

Bolt Kit
Model Numbers

Tightening TorqueNm005 Series

MBK−005−＊−20

007 Series

MBK−007−＊−1001 Series

MBK−01−＊−70

03 Series

MBK−03−＊−1004 Series

MBK−04−＊−1006 Series

MBK−06−＊−70

70−100(90−100)★

10 Series

MBK−10−＊−10150−170

2.5−3.55−7(6−7)★
12−15

12−15(M6)45−55(M10)★T he value range in parentheses represents the tightening torquerequirements if the operating pressure is above 25 MPa.

■ Assembly

Mounting Bolt Kits

Assembly should be carried out in clean conditions and in accordance with thefollowing procedure. Cautious attention should be paid to ensure that the interfaceof the valves are clean and free from dirt or other foreign materials.

SOL a

Solenoid Operated
Directional Valve

SOL b● Assembly Procedure:Modular Valves●005/007 Series

1) To stack modular valves and solenoid operated directional valves according tocircuit requirements, match the O-ring surfaces to the mounting surface andcheck the alignment of the locating pins. (007 Series check the portarrangement)2) Align the right and left sides of the stacked valves.

005 Series Modular Valves

3) Tighten the four mounting bolts to the specified tightening torque. After the test
run, be sure to tighten again firmly within the specified torque.

NutStud Bolt

●01-10 Series1) Screw-in the four stud bolts(04, 06 and 10 series: six stud bolts), fully into thetapped holes on the mounting surface of the specified base plate, sub-plate ormanifold. 01,04 and 06 series stud bolts, screw short-side into the mounting
surface of the specified base plate, sub-plate or manifold.
2) Stack the modular valves and solenoid operated directional valves in accordancewith the hydraulic circuit, place the O-ring inserted surface face onto the baseplate and make sure that the port arrangement of the modular valves are in thecorrect position before stacking the valves onto the stud bolts.

SOL b

Mounting
Bolt Kits

FModular Valves

Series

SOL a

Solenoid Operated
Directional Valve

Modular Valves3) Align both the end of the valves stacked.

4) Screw-in the four nuts(04, 06 and 10 series: six nuts) onto the stud bolts andtighten with the specified torque. After the test run, be sure to retighten the nuts
firmly within the specified torque.

Base Plate

03 Series Modular Valves

Pressure Drop
■ Pressure Drop

Pressure drop curves of the modular valves are those based on viscosity of 35mm²/s and specific gravity of 0.850. When using the modular valves in
conditions other than the above mentioned, find the appropriate values
referring to the following table and formula.

● For any other viscosity, multiply the factors in the table below.
Viscosity mm2/s
Factor152030

4050

60

7080

90

1000.81 0.87 0.96 1.03 1.09 1.14 1.19 1.23 1.27 1.30

● For any other specific gravity (G'), the pressure drop (⊿P') may be obtained
from the following formula. ⊿P'= ⊿P (G'/0.850)

Modular Valves

F-5