JIS symbol JIS symbols used in this catalog are old symbols following JISB0125-1: 2001. Refer to JISB0125-1: 2007 or JFPS2011: JF PS2011: 2006 for new symbols.
Page
1. Element of symbol
Ending 132
2. Line and port
Ending 133
3. Directional control valve
Ending 133
4. Pressure control valve
Ending 139
5. Speed control valve
Ending 139
6. Cylinder and motor
Ending 139
7. Power and tank
Ending 140
8. Air adjustment component
Ending 140
Ending
9. Auxiliary components and other components Ending 141 l o b m y s S I J
CAD data is available. Ending 131 Ending 131
JIS
JIS symbol list 1 Element of symbol (a) Symbol element Name Line Continuous line
Symbol
(b) Functional element Applications (1) Main line (2) Air supply line to pilot valve (3) Electric signals line
Dashed line
(1) Pilot operation line (2) Drain line (3) Filter (4) Valve switching position Envelopment line
Double line
Mechanical connection
Circle Large circle
Energy converter
Broken line
Medium circle
(1) Instrumentation (2) Rotation joint
Small circle
(1) Check valve (2) Link (3) Roller
Point
Half circle
Square
Return line included Others: Indicate the electrical symbol to identify from the piping path Internal pilot External pilot
Envelopment line indicating unit with more than one function Rotary shaft, lever, piston rod, etc.
Pump, compressor, electric motor, etc.
Roller: Put a point on the center.
Name
Symbol
Hollow type (large)
Hollow type (low)
Capsule type
Ending 132
Fluid energy direction Type of fluid Energy source display
Painted
Hydraulics
White
Compressed air and other gas pressure
Arrow display Straight or oblique line
(1) Linear movement (2) Fluid flow path and direction in valve (3) Heat flow direction
Curve
Rotary motion
Arrow indicates the rotational direction viewed from a free end of a shaft
Oblique line
Variable operation or adjustment method
Draw oblique line with appropriate length Such as pump, spring or variable solenoid
Other
Electric
Including emission to atmosphere medium
Use the following symbols when AC and DC identification is required:
Pump or actuator whose turning angle is limited (1) Fluid control components (2) Driving motor other than electric motor
The port intersects vertically with the side.
Fluid adjustment components
The port intersects with the corner. Filter, drain separator, lubricator, heat exchanger etc.
Oil tank (ventilation type) Local display of oil tank (ventilation type) (1) Oil tank (closed type) (2) Pneumatics tank (3) Accumulator (4) Auxiliary gas vessel
Closed path Port
Closed path or closed port Solenoid
Temperatureinstruction or adjustment
Driving motor Refer to No. 7
Spring
Two tops is preferable
Needle valve
(1) Cylinder (2) Valve
Specific operation method Other
Remarks
Equilateral triangle
Mnemonic symbol of valve seat of check valve
Piston
Ending
Applications
(1) Connection of line (2) Shaft of roller
(1) Cushion in cylinder (2) Weight in accumulator Rectangle
Remarks
Refer to No. 3 (a)
(c) Mechanical element Name Rod Rotary shaft
Detent Latch
Symbol
Remarks 2 direction operation Arrow indication is optional 2 direction operation Arrow indication is optional 2 direction operation Vertical line on notch indicates clamp 1 direction operation Symbol shows release method.
JIS Name
Symbol
Remarks • 2 direction operation
Over center mechanism 2 Line and port (a) Line Name
Symbol
Remarks
Name
No.
Lever
14
Pedal
15
Double pedal
16
20
Connection
Symbol
Remarks • 2 direction operation (including rotary motion) • 1 direction operation (including rotary motion) • 2 direction operation (including rotary motion) • 1 direction operation
Cross
• Not connected
Mechanical control plunger
Flexible line
• Hose (normally connected to movable portion)
Variable stroke length limitter
22
Spring
23
• 1 direction operation
Roller
24
• 2 direction operation
Pull roller
25
• Arrow shows operation direction. Indication may be omitted. • 1 direction operation
Electrical control
30
• Solenoid, torque motor, etc.
31
• 1 direction operation • The oblique line can slant
(b) Connecting port Name
Symbol
• Performing air vent in the specified period, then closing. • Performing air vent by using check mechanism, if required. • Pneumatics dedicated • Without connecting port
Exhaust port
• With connecting port • Without check valve
Quick joint
• With check valve (Self sealant joint)
Connection state Removing state • Swivel and rotary joint
Rotation joint
1 line
• 1 direction rotation
3 lines
• 2 direction rotation
No.
Manual control
10
Direct electric actuator Single acting solenoid Double acting solenoid
Single-acting variable solenoid actuator Double acting variable solenoid actuator Rotary electric actuator
Indirect electric actuator Single acting solenoid Double acting solenoid Pilot operation Direct pilot operation
3 directional control valve (a) Operation Name
Symbol
• 2 direction operation
Remarks • Performing air vent continuously
Air vent
21
operation method is not indicated or when the number of operation directions is not specified
Pushbutton
11
• 1 direction operation
Pull-button
12
• 1 direction operation
Push/pull button
13
• 2 direction operation
32
33
34
35
36
37
Internal pilot
• 2 direction operation • The oblique line can spread upward.
• 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.
40
41
Remarks • General symbols when the
downward to the right.
43
Ending
• When different pressurized areas, if required, indicate the number showing are ratio. • Operation flow path is provided in inside of device.
External pilot
44
• Operation flow path is provided out of device.
l o b m y s S I J
Ending 133
JIS Name
No.
Indirect pressure control operation Pressurized operation method Pneumatics pilot
Electromagnetic, pneumatics pilot
Electromagnetic, pneumatics pilot with manual override
Symbol
No. of Solenoid Status of normal position port position
Remarks
42
• 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 30 s are used for transfer symbols. • Valve with manual override added to the above operation
36
36 10
(b) Directional control valve basic type No. of Status of normal Position position port 2
2
Normally closed
No. A
Normally closed
Normally open
2
2
Normally open
B
3
2
Normally closed
C
3
2
Normally open
D
4
4
2
P/B connection
Remarks
Symbol
E
3
Note) Numerals indicate of JISB8375 (ISO5599). 4
2
P/B connection
2
F
5 4
4
3
All ports closed
2
G
1
5
3
All ports closed
3
P/A/B connection
K
5
3
P/A/B connection
L
4
1 3
5 1 3
Note) Numerals indicate JISB8375 (ISO5599).
(c) Manual control valve Name
Basic type and operator type
Combination symbol t d r m e m o i n n s p n s i i y i o o p o o t t n t n i i f n a a t a a c r i r o e h i h . l s e c s e c o o o p e a p e N S O m B O m p
Direct acting normally closed pushbutton and spring • Return
2
2
11
A
23
Direct acting normally open pushbutton and spring • Return
2
2
11
B
23
Direct acting normally closed pushbutton and spring • Return
3
2
11
C
23
Direct acting normally open pushbutton and spring • Return
3
2
11
D
23
Direct acting normally closed 2 pull-button, spring • Return
2
12
A
23
Direct acting normally open 2 pull-button, spring • Return
2
12
B
23
Direct acting normally closed pull-button, spring • Return
3
2
12
C
23
Direct acting normally open pull-button, spring • Return
3
2
12
D
23
Direct acting normally closed 2 push/pull button
2
13
A
Direct acting normally open 2 push/pull button
2
13
B
Direct acting normally closed push/pull button
3
2
13
C
Direct acting normally open push/pull button
3
2
13
D
3
H 5 1 3 4
4
3
A/B/R connection
I
1 4
5
3
A/B/R connection
2
3 2
J
5 1 3
Ending 134
2
1 3 2
4
2
4
Ending
4
Remarks
Symbol
2
1
5
No.
Symbol
JIS Name Basic type and operator type
Direct acting normally closed lever, spring, return
Name
Combination symbol t r o p f o . o N
2
n m e m o i t n s p n s i i i y o s i o n o t n t i a c t a p a a f r h i r h o e c c s e . e e p p a o N O m B O m
2
14
A
Symbol
Basic type and operator type
Direct acting both sides operation pushbutton
23
Combinationsymbol t r o p f o . o N
4
n o m e m i t n s p n s i i i y s o o t i n o i t n a c t a p a a f r h i r h o e s c c e . e e a p p o N O m B O m
2
11
E
Symbol
2
4
11
1
Direct acting normally open lever, spring, return
2
2
14
B
Direct acting both sides operation pushbutton
23
5
2
11
F
2
4
11
1
Direct acting normally closed lever, spring, return
3
2
14
C
Direct acting push/pull button
23
4
2
13
4 2
E
1
Direct acting normally open lever, spring, return
3
2
14
D
Direct acting push/pull button
23
5
2
13
2
4
F
1
Direct acting lever with detent
2
2
14
A
Direct acting closed center with lever and detent
3
4
3
14
G
3
2
4
1
Direct acting lever with detent
Direct acting lever with latch
3
2
2
2
14
14
C
A
3
(3) Item detent 1 (c) (4) Item latch 1 (c) Generally, key selector valve
Direct acting closed center with lever and detent
3
14
H
3
2
4
1
Direct acting pedal spring and return (foot valve)
4
5
4
2
15
E
2
4
23
1
Direct acting lever with latch
3
2
14
C
Direct acting pedal spring and return (foot valve)
4
5
2
15
F
2
4
23
1
Direct acting normally closed pedal, spring, return (foot valve)
2
2
15
A
Direct acting double pedal (foot valve)
23
4
2
16
2
4
E
1 3
Direct acting normally open pedal, spring, return
2
2
15
B
Direct acting double pedal (foot valve)
23
5
2
16
2
4
F
5 13
Direct acting normally closed pedal
3
2
15
C
Direct acting double pedal all ports closed with detent
23
4
3
16
G
3
4
1
Direct acting normally open pedal
3
2
15
D
Direct acting double pedal all ports closed with detent
23
5
3
16
H
3
4
2
3 2
5 1 3
Direct acting double pedal (foot valve for both foot)
2
2
16
Note) Numerals indicate JISB8375 (ISO5599).
A
Ending
(d) Mechanical control valve Combinationsymbol
Name
Direct acting double pedal (foot valve for both foot)
3
Direct acting pushbutton spring and return
4
Direct acting pushbutton spring and return
2
16
C
Basic type and operator type
5
2
2
11
11
E
F
23
23
4
2
1 4
2
1
t r o p f o . o N
n m e m o i t n s p n s i i i y i s o o t n o i t n a c t a p a a f r h i r h o e c s e c . e a p e o p N O m B O m
Direct acting normally closed plunger spring and return
2
2
21
A
23
Direct acting normally open plunger spring and return
2
2
21
B
23
Symbol
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Ending 135
JIS Name
Basic type and operator type
Combination symbol t r o p f o . o N
n o m i t n s i i s i o o t n a p a f r h o e c . e o p N O m
e m p n s i o y t i t n a a c r i h s e c a p e B O m
Name Symbol
Basic type and operator type
Combination symbol t r o p f o . o N
n o m i t n s i i s o o i t n p a a f r h o e c . e o p N O m
e m p n s i y o t i t n a a c i r h s e c a p e B O m
Direct acting normally closed 3 plunger
2
21
C
23
Direct acting both sides pilot
2
2
41
A
41
Direct acting normally open 3 plunger
2
21
D
23
Direct acting both sides pilot
3
2
41
C
41
Direct acting normally closed roller spring and return
2
2
24
A
23
Direct acting pilot spring and return
4
2
41
E
23
Direct acting normally open 2 roller spring and return
2
24
B
23
Direct acting pilot spring and return
5
2
41
F
23
Direct acting normally closed 3 roller spring and return
2
24
C
23
Direct acting both sides pilot
4
2
41
E
41
Direct acting normally open 3 roller spring and return
2
24
D
23
Direct acting both sides pilot
5
2
41
F
41
Direct acting normally closed 2 single roller spring and return
2
25
A
23
Direct acting all ports closed both sides pilot spring and center
4
3
41 23
G
41 23
Direct acting normally open single roller spring and return
2
Direct acting all ports closed both sides pilot spring and center
5
41 23
H
Symbol
4
2
1
2
4
2
5
1
4
25
B
23
3
41 23
2
25
C
Direct acting ABR connection both sides pilot spring and center
23
2
3
4
2
5
1 3
4
2
1
3
4
2
1
4
2
25
D
Direct acting both sides pilot A/B/R connection spring and center
23
2
Combination symbol
Basic type and operator type
Ending
n o m i t n s i i s o o i t n a p a f r h o e c . e o p N O m
e m p n s i o y t i t n a a c i r h s e c a p e B O m
Direct acting pilot normally closed spring and return
2
Direct acting pilot normally open spring and return
2
2
41
B
23
Direct acting pilot normally closed spring and return
3
2
41
C
23
Direct acting pilot normally open pilot
3
2
41
D
23
2
41
A
1 4
3 2
Direct acting P/A/B connection both sides pilot spring and center
(e) Pilot operated valve t r o p f o . o N
3
4
5
Name
3
2
1
Direct acting normally open 3 single roller spring and return
3
1
5
Direct acting normally closed 3 single roller spring and return
3
1 2
4
Symbol
Direct acting P/A/B connection both sides pilot spring and center
5 1
3
3
23
* The basic valve’s center position operation symbol can be written with a leader line to the basic valve center position in the drawing. Example 4 2
1
3
Indirectly operation normally closed pilot spring and return
Note) Numerals indicate JISB8375 (ISO5599).
Ending 136
JIS (f) Reverse not go shuttle and exhaust valve
(g) Solenoid valve
Combination symbol Name
Check valve without spring
43
A
43 23
A
41 43
A
43
C
a '
43
Valve is closed by external pilot Simple symbol
High pressure priority type shuttle valve
Basic type and operator type
t r o p f o . o N
n o i t i s o p f o . o N
m n i s o n i t a a h r e c p e O m
e p y t
c i s a B
m n i s o n i t a a h r e c p e O m
Direct acting normally closed single acting solenoid spring and return
2
2
31
A
23
Direct acting normally open single acting solenoid spring and return
2
2
31
B
23
Direct acting normally closed single acting solenoid
3
2
31
C
23
Direct acting normally open single acting solenoid
3
2
31
D
23
Direct acting both sides solenoid
2
2
31
A
31
Direct acting both sides solenoid
3
2
31
C
31
Direct acting double acting solenoid
3
2
32
C
b
43
* Use this when the relationship to the electric signal need not be indicated. Simple symbol
Symbol
a
43
Simple symbol
Pilot operation check valve
No.
43
Simple symbol
Check valve with spring
Combination symbol
Name
Symbol Operation Basic Operation (Details and simple symbol) mechanism type mechanism
c
Direct acting single acting solenoid
* * Position and functions of
valving element is specified.
4
2
31
E
4
23
2
1 3
Low pressure priority type shuttle valve
The low pressure inlet is connected to the low-pressure priority output, and the highpressure inlet is closed. Simple symbol
Direct acting single acting solenoid
5
2
31
F
23
Indirect operation single acting solenoid spring and return
4
2
36
E
23 43
4
2
513 4 2
1 3
d
* Pressure and return Ending
Indirect operation single acting solenoid spring and return
5
2
36
F
4
23
2
5 1 3
Quick exhaust valve
* Pressure and return
Simple symbol
e
Direct acting both sides solenoid
* For the pressure and return operation symbol, indicate the function element triangle at the edge.
4
2
31
E
31
4
2
1 3
l o b m y s S I J
Note) Numerals indicate JISB8375 (ISO5599).
Ending 137
JIS Name Basic type and operator type
Direct acting double acting solenoid
Combination symbol t r o p f o . o N
4
n o i t i s o p f o . o N
2
m n s o i i t n a a r h e c p e O m
32
e p y t c i s a B
m n s o i i t n a a r h e c p e O m
Name Symbol
Basic type and operator type
4
E
Combination symbol m e p n s y o i i t t n a c a h r i e c s p e a O m B
2
1 3
Direct acting PAB both sides solenoid spring/pressure centers used together
5
3
m n s o i i t n a a r h e c p e O m
31 23 43
n o i t i s o p f o . o N
L
t r o p f o . o N
Symbol
4
31 43 23
2
513
* As stated above, JIS
stipulates that this is not required if the relationship to the electrical signal need not be indicated. 32 can be indicated as 31 -, which is the abbreviation of 31 .
Direct acting both sides solenoid
5
2
31
F
4
31
4
Direct acting P/A/B connection both sides solenoid with manual override
31 10 23 43
L
31 10 43 23
*
2
513
* If the diagram is
difficult to read when all symbols are indicated on both ends, separate symbols.
2
51 3
Direct acting double acting solenoid
5
2
32
4
F
2
Indirect operation all ports closed both sides solenoid spring/pressure centers
51 3
Indirect operation both sides solenoid
4
2
4
36
E
4
3
4
36 23
G
1 3
2
36
4
1 3
Indirect operation double acting solenoid
4
2
4
37
2
E
1 3
Indirect operation both sides solenoid
5
2
36
F
2
36 23
4
36
Indirect operation all ports closed both sides solenoid spring/pressure centers
5
Indirect operation A/B/R connection both sides solenoid spring/pressure centers used together
4
Indirect operation A/B/R connection both sides solenoid spring/pressure centers used together
5
3
36 23 43
H
2
36 23 513
2
5 1 3
Indirect operation double acting solenoid
5
2
37
4 2
F
5 1 3
Direct acting all ports block both sides solenoid spring/pressure centers
Ending
4
3
31 23
G
4
31 23
36 23 43
I
36 43 23
3
Direct acting A/B/R connection both sides solenoid spring/pressure centers
3
4
31 23
H
31 23
Direct acting P/A/B connection 4 both sides solenoid spring/pressure centers
2
2
4
4
2
3
36 23 43
J
2
36 43 23 5 1 3
5 1 3
31 23
I
4
31 23
2
1
5
4
1 3
1 3
Direct acting all ports 5 block both sides solenoid spring/pressure centers
Direct acting A/B/R connection both sides solenoid spring/pressure centers
3
3
3
4
31 23
31
J
K
3
4 Indirect acting A/B/R both sides solenoid spring/pressure centers pilot manual override
3
Indirect acting A/B/R both sides solenoid spring/pressure centers with manual override
3
36 10 23
K
36 10 23
4
2
1 3
2
31 23 5 1
3
4
2
31
1
4
5
36 10 23
L
36 10 23
2
513
3
Note) Numerals are indication of JISB8375 (ISO5599).
Ending 138
JIS 5 Speed control valve
Combination symbol
Name t r o p f o . o N
Basic type and operator type
(Proportional control valve) Direct acting proportional electromagnetic flow control valve
2
Direct acting proportional electromagnetic flow control valve
3
(Servo valve) Direct acting electromagnetic servo control spring/pressure center
4
Direct acting electromagnetic servo control spring/pressure center
5
n o i t i s o p f o . o N
m n i s o n i t a a h r e c p e O m
33
e p y t c i s a B
A
m n i s o n i t a a h r e c p e O m
Symbol
Name
Symbol
Metering valve
Details
Simple symbol
Variable metering symbol valve
23
Remarks • In simple symbols, operation method and valve's state are not indicated • Normally, there is no completely closed status
Stop valve 33
C
23
Speed control valve
34 23
G
23
4
2
1 3
4
36 23
H
• With variable needle valve • One direction is free flow, while the other direction is controlled flow
2
23
Metering valve
Metering valve with silencer
5 1 3
Note) Numerals are indication of JISB8375 (ISO5599). 6 Cylinder and motor
4 Pressure control valve Name Relief valve
Symbol
Remarks
Direct acting or general Symbol
Name
Symbol
Single acting Details symbol cylinder
Remarks
Simple symbol • Extend type • Single rod type • Exhaust to atmosphere
Pilot operation type relief valve
Regulator
Regulator with relief
Nonrelief type
Single acting (1) cylinder (with spring) (2)
• Single rod type (1) Rod extended by spring force (2) Rod retracted by spring force
Double acting (1) cylinder
(1) Single rod type (2) Double rod type
(2) Pilot operation type regulator
Regulator with filter
Regulator with check valve
Double acting telescope type cylinder
Cylinder with adjustable stroke (Head end)
Cylinder with adjustable stroke (Rod end)
Reference: Followed JISB8368 names. In JISB01421984, the head is on the cap side and the rod side is on the head side.
Ending
Sequence valve
with speed control valve Proportional electromagnetic pressure control valve
• Example of meter-out l o b m y s S I J
Ending 139
JIS Name
Symbol
Remarks • Describe the braking method if required.
Tie rod cylinder with brake
Name
Symbol
Driving motor
Remarks (Excluding electric motor)
Air tank
Cylinder with (1) end lock
* Symbol showing how to release (1) Head end
(2) Rod end Note: Nominal values follow JISB83681999.
(2)
Cylinder with switch
8 Air adjustment component Name
Filter
• Specify a and b contact
Filter with drain discharger
Non-rotating cylinder
Rodless cylinder
Oil mist separator
Cylinder with valve
Micro mist separator • 1 direction flow • 1 direction rotation type
• 2 direction flow • 2 direction rotation type
Drain discharger Oscillator
• • • •
Ending
Pneumatics Constant angle 2 direction oscillation type Drawings of arrows to indicate relationship of the shaft rotation direction and flow direction are optional.
Name
Symbol
• General symbols
Pneumatics (power) source
• General symbols
Ending 140
(2)
(2) With magnet
(3)
(3) With clogging indicator
(1)
(1) Manual discharge
(2)
(2) Automatic emission
(1)
(1) Manual discharge
(2) Automatic emission
(1)
(1) Manual discharge
(2)
(2) Automatic emission
(3)
(3) Deodorization filter
(1)
(1) Manual discharge
(2)
(2) Automatic emission
(1)
(1) Water cooling type (When not showing water line)
(2)
(2) Water cooling type (When showing water line)
(3)
(3) Air cooling type
Remarks
Hydraulics (power) source
Electric motor
(1) General symbols
Air dryer
Heat exchanger Cooler
7 Power and tank
Remarks
(1)
(2)
• Example of push type during energizing
Air motor
Symbol
JIS Name
Symbol
Remarks All volume type Selection type
Lubricator
Pneumatics adjustment unit
Simple symbol
Name
Symbol
Remarks
Limit switch
Can be indicated as follows if drawing could not be misread:
Air ejector
• Since Z 8207
The vertical arrow indicates a discharger.
Pneumatics counter Details symbol
Details symbol • Filter with manual discharge valve • Nonrelief type regulator • An example of direct type lubricator is indicated.
Oil mist separator for exhaust air
Pressure indicator
• Simple indicator without measurement
Pressure gauge
Noise reduction device
Differential pressure gauge
Oil injector
Thermometer
Galvanoscope 9 Auxiliary components and other components Name
Pneumatic hydraulic converter
Symbol
(1)
Remarks (1) Single acting
Flow meter (2)
(2) Continuous type
(1)
• When pressure ratio 1:2 • 2 class fluid (1) Single acting
Integrated flow gauge
Booster
(2) (2) Continuous type
Booster valve
Rotation speed gauge
Pressure ratio 1: 2
Torque gauge Delay valve
(Example)
Ending
• Indicate with a compound symbol based on the mechanism
(Refer to JISB0125-1: 2001 and JPAS010.) Note:
Alarm
Pressure switch
Can be indicated as follows if drawing could not be misread:
mark is an original JPAS010 symbol. Use is limited to those indicated.
l o b m y s S I J
Ending 141
