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JIS symbolJIS symbol

1. Element of symbol

2. Line and port

3. Directional control valve

4. Pressure control valve

5. Speed control valve

6. Cylinder and motor

7. Power and tank

8. Air adjustment component

9. Auxiliary components and other components

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CAD data is available.

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JIS symbols used in this catalog are old sym-bols following JISB0125-1: 2001.Refer to JISB0125-1: 2007 or JFPS2011: 2006for new symbols.

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1 Element of symbol(a) Symbol element

(c) Mechanical element

(b) Functional element

Name Symbol Applications Remarks

LineContinuous line

Broken line

Dashed line

Double line

CircleLarge circle

Medium circle

(1) Main line(2) Air supply line

to pilot valve(3) Electric signals line

(1) Pilot operationline

(2) Drain line(3) Filter(4) Valve switching

positionEnvelopment line

Mechanical connection

Energy converter

(1) Instrumentation(2) Rotation joint

Return lineincluded

Others: Indicatethe electricalsymbol to identifyfrom the pipingpathInternal pilotExternal pilot

Envelopment lineindicating unit withmore than one functionRotary shaft,lever, piston rod,etc.

Pump, compressor,electric motor, etc.

Small circle

Point

(1) Check valve(2) Link(3) Roller(1) Connection of line(2) Shaft of roller

Name Symbol Applications Remarks

Equilateral triangle

Name Symbol Remarks

Rod

Rotary shaft

Detent

Latch

2 direction operationArrow indication is optional2 direction operationArrow indication is optional

2 direction operationVertical line on notchindicates clamp

1 direction operation Symbol showsrelease method.

Fluid energy directionType of fluidEnergy source display

Roller: Put a point on the center.

Half circle

Painted

White

Hydraulics

Compressed air andother gas pressure

Including emission to atmosphere medium

Arrow displayStraight oroblique line

Curve

Oblique line

(1) Linear movement(2) Fluid flow path

and direction in valve

(3) Heat flow directionRotary motion

Variable operationor adjustment method

Arrow indicates the rotational direction viewed from a free end of a shaft

Draw oblique line with appropriate lengthSuch as pump, spring or variable solenoid

Other Electric

Closed path orclosed port

Solenoid

Temperature instructionor adjustment

Driving motor

Spring

Needle valve

Mnemonic symbol of valve seat of check valve

Use the following symbols when AC and DC identification is required:

Two tops is preferable

Pump or actuator whose turning angle is limited

Square The port intersects vertically with the side.

The port intersects with the corner.Filter, drain separator, lubricator, heat exchanger etc.

(1) Fluid control components

(2) Driving motor other than electric motor

Fluid adjustment components

(1) Cushion in cylinder

(2) Weight in accumulator

Rectangle (1) Cylinder(2) Valve

Piston

Specific operation method

OtherHollow type (large)

Hollow type (low)

Oil tank (ventilation type)Local display of oil tank (ventilation type)

Capsuletype

(1) Oil tank(closed type)

(2) Pneumatics tank

(3) Accumulator(4) Auxiliary

gas vessel

JIS symbol list

Closed path Port

Refer to No. 7

Refer to No. 3 (a)

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2 direction operation

Over center mechanism

Name Symbol Remarks

Performing air vent continuously

Performing air vent in the specified period, then closing.

Performing air vent by using check mechanism, if required.

Air vent

Name Symbol Remarks

Pneumatics dedicated

Without connecting port

With connecting port

Without check valve

With check valve(Self sealant joint)

Quick joint

Connection state Removing state

Exhaust port

Swivel and rotary joint

1 direction rotation

2 direction rotation

Rotation joint

1 line

3 lines

(b) Connecting port

2 Line and port(a) Line

3 directional control valve(a) Operation

Not connected

Hose (normally connected to movable portion)

Connection

Cross

Flexible line

Name Symbol Remarks

General symbols when the operation method is not indicated or when the number of operation directions is not specified




Manual control

Pushbutton

Pull-button

Push/pull button

Name No. Symbol Remarks

10

11

12

13

2 direction operation (including rotary motion)



Lever

Pedal

Double pedal


14

15

16





Arrow shows operation direction. Indication may be omitted.


Mechanical controlplunger

Variable stroke length limitter

Spring

Roller

Pull roller

2021

22

23

24

25

Solenoid, torque motor, etc.

1 direction operation The oblique line can slant

downward to the right.

2 direction operation The oblique line can

spread upward.

Electrical control

Direct electric actuator

Single acting solenoid

Double acting solenoid

30

31

32

1 direction operation Proportional type

solenoid Force motor etc. 2 direction operation Torque motor

2 direction operation Electric motor

* JIS covers pilot operation, but the valve is typically used as a solenoid valve, so the transfer symbol (36) and (37) has been used for the electric operation classification.

Single-acting variable solenoid actuatorDouble acting variable solenoid actuatorRotary electricactuator

Indirect electricactuator

Single actingsolenoid

Double actingsolenoid

33

34

35

36

37

41

43

44

When different pressurized areas, if required, indicate the number showing are ratio.

Operation flow path is provided in inside of device.

Operation flow path is provided out of device.

Pilot operationDirect pilotoperation

Internal pilot

External pilot

40

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No.No. ofport PositionStatus of normal

position Symbol Remarks

Indirect pressure control operation

Pressurizedoperation method

Pneumaticspilot

Electromagnetic, pneumaticspilot

Electromagnetic, pneumatics pilotwith manual override Direct acting normally closed

pushbutton and spring Return

Direct acting normally openpushbutton and spring Return

Direct acting normally closedpushbutton and spring Return

Direct acting normally openpushbutton and spring Return

Direct acting normally closedpull-button, spring Return

Direct acting normally openpull-button, spring Return

Direct acting normally closedpull-button, spring Return

Direct acting normally openpull-button, spring Return

Direct acting normally closedpush/pull button

Direct acting normally openpush/pull button

Direct acting normally closedpush/pull button

Direct acting normally openpush/pull button

2

2

3

3

4

5

4

5

4

5

2

2

2

2

2

2

3

3

3

3

Normallyclosed

Normallyopen

Normallyclosed

Normallyopen

Normallyclosed

Normallyopen

P/B connection

P/B connection

All ports closed

All ports closed

A/B/R connection

A/B/R connection

42

36

36

10

A

B

C

D

E

F

G

H

I

J

(b) Directional control valve basic type

(c) Manual control valve

No.No. ofportSolenoidposition

Status of normalposition Symbol Remarks

4

5

3

3

P/A/B connection

P/A/B connection

K

L

Name

Basic type and operator typeSymbol

Combination symbol

A

B

C

D

A

B

C

D

A

B

C

D

11

11

11

11

12

12

12

No. o

f port

Solen

oid

posit

ion

Basic

type

2

2

3

3

2

2

3

3

2

2

3

3

2

2

2

2

2

2

2

2

2

2

2

2

13

13

13

13

23

23

23

23

23

23

23

12 23

1 324

5

Note) Numerals indicate JISB8375 (ISO5599).1 3

24

1 3

4 2

4 2

5 31

4 2

5 31

4 2

5 31

31

24

Note) Numerals indicate of JISB8375 (ISO5599).

31

24

Internal pilot No primary operation

Primary operation by single-acting solenoid

Internal pilot* The valve is typically

used as a solenoid valve, so transfer symbols in the

s are used for transfer symbols.

Valve with manual override added to the above operation

30

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SymbolBasic type and operator type

No. o

f port

No. of

position

Basic

type

Combination symbolNameSymbol

Basic type and operator type

No. o

f port

No. of

position

Basic

type

Combination symbolName


(d) Mechanical control valve

No. o

f port

No. of

position

Basic

type

Combination symbolName

Direct acting normally closedlever, spring,return

2 2 14 A 23

Direct acting normally openlever, spring,return

2 2 14 B 23

Direct acting normally closedlever, spring,return

3 2 14 C 23

Direct acting normally openlever, spring,return

3 2 14 D 23

2 2 14 A 3Direct acting leverwith detent

3 2 14 C 3Direct acting leverwith detent

2 2 14 A 4Direct acting leverwith latch

3 2 14 C 4Direct acting leverwith latch

2 2 15 A 23Direct acting normally closedpedal, spring,return (foot valve)

2 2 15 B 23Direct acting normally openpedal, spring,return

3 2 15 C 23Direct acting normally closedpedal

3 2 15 D 23Direct acting normally openpedal

2 2 16 ADirect acting double pedal(foot valve for both foot)

3 2 16 CDirect acting double pedal(foot valve for both foot)

4 2 11 E 23Direct acting pushbuttonspring and return

Direct acting pushbuttonspring and return

5 2 11 F 23

Direct acting both sides operationpushbutton

4 2 11 E 11

Direct acting both sides operationpushbutton

5 2 11 F 11

Direct actingpush/pull button

4 2 13 E

Direct actingpush/pull button

5 2 13 F

4 3 14 G 3Direct acting closed centerwith lever and detent

5 3 14 H 3Direct acting closed centerwith lever and detent

4 2 15 E 23Direct acting pedalspring and return(foot valve)

5 2 15 F 23Direct acting pedalspring and return(foot valve)

4 2 16 EDirect acting double pedal(foot valve)

5 2 16 FDirect acting double pedal(foot valve)

4 3 16 G 3Direct acting double pedalall ports closedwith detent

5 3 16 H 3Direct acting double pedalall ports closedwith detent

Direct acting normally closedplungerspring and return

2 2 21 A 23

Direct acting normally openplungerspring and return

2 2 21 B 23

(3) Item detent 1 (c)(4) Item latch 1 (c)Generally, key selectorvalve

1

24

1

1

1

1

1

1

24

24

24

24

24

24

1

1 3

24

24

15 3

1 3

15 3

24

24

24

Note) Numerals indicate JISB8375 (ISO5599).

1

14 2

4 2

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Name Combination symbol


No. o

f port

No. of

positio

n

Basic

type

Direct acting normally closedplunger

3 2 21 23C

Direct acting normally openplunger

3 2 21 23D

Direct acting normally closedrollerspring and return

2 2 24 23A

Direct acting normally openrollerspring and return

2 2 24 23B

Direct acting normally closedrollerspring and return

3 2 24 23C

Direct acting normally openrollerspring and return

3 2 24 23D

Direct acting normally closedsingle rollerspring and return

2 2 25 23A

Direct acting normally opensingle rollerspring and return

2 2 25 23B

Direct acting normally closedsingle rollerspring and return

3 2 25 23C

Direct acting normally opensingle rollerspring and return

3 2 25 23D



No. o

f port

No. of

positio

n

Basic

type

Direct acting both sides pilot 2 2 41 41A

Direct acting both sides pilot 3 2 41 41C

Direct acting pilotspring and return

4 2 41 23E

Direct acting pilotspring and return

5 2 41 23F

Direct acting both sides pilot 4 2 41 41E

Direct acting both sides pilot 5 2 41 41F

Direct acting all ports closedboth sides pilotspring and center

4 3 41 41G

Direct acting all ports closedboth sides pilotspring and center

Direct acting ABR connectionboth sides pilotspring and center

Direct acting both sides pilotA/B/R connectionspring and center

Direct acting P/A/B connectionboth sides pilotspring and center

Direct acting P/A/B connectionboth sides pilotspring and center

Indirectly operationnormally closedpilot spring and return

5 3 41

23

2341

23

23H



No. o

f port

No. of

positio

n

Basic

type

Direct acting pilotnormally closedspring and return

2 2 41 23A

Direct acting pilotnormally openspring and return

2 2 41 23B

Direct acting pilotnormally closedspring and return

3 2 41 23C

Direct acting pilotnormally openpilot

3 2 41 23D

* The basic valves center position operation symbol can be written with a leader line to the basic valve center position in the drawing.

Example

(e) Pilot operated valve

4

1

5 1 3

1

5 1 3

1 3

1 3

1 3

1 3

1 3

1 35

5

5

3

3

2

4 2

4 2

4 2

4 2

4 2

4 2

4 2

4 2

4 2

1 3

4 2


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NameCombination symbol

Operationmechanism

Basictype

Operationmechanism

Symbol(Details and simple symbol) No.

Check valvewithout spring

43 43A

a

b

c

d

e

Check valvewith spring

4323

43A

Pilot operationcheck valve

4143

43A

High pressure priority typeshuttle valve

Low pressure priority typeshuttle valve

Quick exhaust valve

43 43C


SymbolBasic type andoperator type

No. o

f por

t

No. of

positi

on

Opera

tion

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type

Opera

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Direct acting normally closedsingle acting solenoidspring and return

2 2 31 23A

3 2 32 C

Direct actingsingle acting solenoid

4 2 31 23E

Direct actingsingle acting solenoid

5 2 31 23F

Indirect operationsingle acting solenoidspring and return

Pressure and return

4 2 36 2343

E

Direct acting normally opensingle acting solenoidspring and return

2 2 31 23B

Direct acting normally closedsingle acting solenoid

3 2 31 23C

Direct acting normally opensingle acting solenoid

3 2 31 23D

Direct actingboth sides solenoid

2 2 31 31A


3 2 31 31C

For the pressure and return operation symbol, indicate the function element triangle at the edge.

Valve is closed by external pilot Simple symbol

The low pressure inlet is connected to the low-pressure priority output, and the high-pressure inlet is closed.Simple symbol

a '

Simple symbol

Simple symbol

Simple symbol

Simple symbol

Indirect operationsingle acting solenoidspring and return

Pressure and return

5 2 36 23F


4 2 31 31E

Position and functions of valving element is specified.

(f) Reverse not go shuttle and exhaust valve (g) Solenoid valve

1 3

4 2

5 1

4 2

1 3

45 1 3

4 2

1 3

4 2

2

3


Direct actingdouble acting solenoid

Use this when the relationship to the electric signal need not be indicated.

* *

*

*

*

*

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No. o

f por

t

No. of

positi

on

Basic

type

Direct actingdouble acting solenoid

4 2 E

31 31

3231

31

FDirect actingboth sides solenoid

5 2

32

32

FDirect actingdouble acting solenoid

5 2

36 36EIndirect operationboth sides solenoid

4 2

37 EIndirect operationdouble acting solenoid

4 2

36 36FIndirect operationboth sides solenoid

5 2

3123

3123

GDirect acting all portsblockboth sides solenoidspring/pressure centers

4 3

3123

3123

HDirect acting all portsblockboth sides solenoidspring/pressure centers

5 3

3123

3123

IDirect acting A/B/R connectionboth sides solenoidspring/pressure centers

4 3

3123

3123

JDirect acting A/B/R connectionboth sides solenoidspring/pressure centers

5 3

31 31KDirect acting P/A/B connectionboth sides solenoidspring/pressure centers

4 3

37 FIndirect operationdouble acting solenoid

5 2

As stated above, JIS stipulates that this is not required if the relationship to the electrical signal need not be indicated. can be indicated as - -, which is the abbreviation of .



No. o

f por

t

No. of

positi

on

Basic

type

Direct acting PABboth sides solenoidspring/pressure centers used together

5 3 3123 43

1023 43

3623 43

3143 23

L

Indirect operation A/B/R connectionboth sides solenoidspring/pressure centers used together

4 3 3623 43

3643 23

I

Indirect operation A/B/R connectionboth sides solenoidspring/pressure centers used together

5 3 3623 43

3643 23

J

Indirect acting A/B/Rboth sides solenoidspring/pressure centers pilot manualoverride

4 3 36 3610 1023 23

K

Indirect acting A/B/Rboth sides solenoidspring/pressure centers with manual override

5 3 36 3610 1023 23

L

31

2336

2336

1043 23

31LDirect acting P/A/B connectionboth sides solenoidwith manual override

GIndirect operationall ports closedboth sides solenoidspring/pressure centers

4 3

2336HIndirect operation

all ports closedboth sides solenoidspring/pressure centers

5 3

If the diagram is difficult to read when all symbols are indicated on both ends, separate symbols.

Note) Numerals are indication of JISB8375 (ISO5599).

1

4 2

3

15

4 2

4 2

4 2

3

15 3

1 3

1 3

4 2

5 1

4 2

3

1 3

4

5 1 3

2

4

1

4

5 1

4

1 3

4 2

4

2

3

5 3

2

3

2

5 1

4 2

1 3

4 2

5 1

4 2

1 3

4

5 1

4 2

1 3

4

5 1 3

4

5 1

4 2

3

2

2

3

2

3

3

2

1

*

*

*

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Name

Name

Relief valve Direct acting or generalSymbol

Pilot operation typerelief valve

Symbol Remarks

Combination symbol


No. o

f por

t

No. of

positi

on

Opera

tion

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Basic

type

Opera

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(Proportional control valve)Direct actingproportional electromagnetic flow control valve

2 33 23A

In simple symbols, operation method and valve's state are not indicated

Normally, there is no completely closed status

Reference: Followed JISB8368 names. In JISB01421984, the head is on the cap side and the rod side is on the head side.

With variable needle valve

One direction is free flow, while the other direction is controlled flow

Direct actingproportional electromagnetic flow control valve

3 33 23C

(Servo valve)Direct actingelectromagnetic servo controlspring/pressure center

4 3423

23G

Direct actingelectromagnetic servo controlspring/pressure center

5 3623

23H

Regulator Nonrelief type

Regulator with relief

Pilot operation type regulator

Regulator with filter

Regulator with check valve

Sequence valve

Proportional electromagnetic pressure control valve

Name

Metering valveVariable metering valve

Details symbol

Simple symbol

Stop valve

Symbol Remarks

Speed control valve

Metering valve

Metering valve with silencer

Single acting cylinder

Details symbol Simple symbol

Name Symbol Remarks

Single acting cylinder(with spring)

(1) Single rod type(2) Double rod type

Double acting cylinder

Double acting telescope type cylinder

Cylinder withadjustable stroke(Head end)

Cylinder withadjustable stroke(Rod end)

Example of meter-outwith speed control valve

5 Speed control valve

6 Cylinder and motor4 Pressure control valve

(1)

(2)

(1)

(2)

4

1 3

15 3

2

4 2

Note) Numerals are indication of JISB8375 (ISO5599).

Extend type Single rod type Exhaust to

atmosphere

Single rod type(1) Rod extended by

spring force(2) Rod retracted by

spring force

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Name

Hydraulics (power) source General symbolsSymbol Remarks

(1) General symbols

(2) With magnet

(3) With clogging indicator

Describe the braking method if required.

* Symbol showing how to release

(1) Head end

(2) Rod endNote: Nominal values

follow JISB83681999.

Pneumatics Constant angle 2 direction oscillation type Drawings of arrows to

indicate relationship of the shaft rotation direction and flow direction are optional.

Pneumatics (power) source General symbols

Electric motor

Name

Filter

Symbol Remarks

(1) Manual discharge

(2) Automatic emission

Filterwith drain discharger



(1)

(2)

(3)

(1)

(2)

(1)

(2)

(1)

(2)

(3)

(1)

(2)

(1)

(2)

(3)

Oil mist separator



(3) Deodorization filter

Micro mistseparator



Drain discharger

Air dryer

(1) Water cooling type(When not showing water line)

(2) Water cooling type(When showing water line)

(3) Air cooling type

Heat exchangerCooler

Tie rod cylinder with brake

Name Symbol Remarks

Cylinder with end lock

(1)

(2)

Specify a and b contact

Cylinder with switch

Example of push type during energizing

Cylinderwith valve

1 direction flow 1 direction rotation

type

2 direction flow 2 direction rotation

type

Air motor

Oscillator

Non-rotating cylinder

Rodless cylinder

8 Air adjustment component

7 Power and tank

Name

Driving motor (Excluding electric motor)Symbol Remarks

Air tank

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All volume typeSelection type

The vertical arrow indicates a discharger.

Details symbol Filter with manual

discharge valve Nonrelief type

regulator An example of direct

type lubricator is indicated.

Lubricator

Name Symbol Remarks

Pneumatics adjustment unit

Oil mist separatorfor exhaust air

Noise reduction device

Oil injector

Name Symbol Remarks

Limit switch

Since Z 8207Air ejector

Pneumatics counter

Simple indicator without measurement

Pressure indicator

Pressure gauge

Differential pressure gauge

Thermometer

Galvanoscope

Flow meter

Integrated flow gauge

Rotation speed gauge

Torque gauge

(1) Single acting

(2) Continuous type

Pneumatic - hydraulic converter

When pressure ratio 1:2 2 class fluid(1) Single acting

(2) Continuous type

Name Symbol Remarks

Booster

Pressure ratio 1: 2Booster valve

Delay valve

Alarm

Can be indicated as follows if drawing could not be misread:

(1)

(2)

(1)

(2)

(Example)

Pressure switch

9 Auxiliary components and other components

(Refer to JISB0125-1: 2001 and JPAS010.)Note: mark is an original JPAS010 symbol.

Use is limited to those indicated.

Simple symbol

Details symbol

Can be indicated as follows if drawing could not be misread:

Indicate with a compound symbol based on the mechanism

JIS

jis electrical standard

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