pnuematic valve symbols

1. PneumaticSymbols Pneumatic

Symbols
For system diagrams and component
identification

2. Contents Contents
z
Standards
z
Actuators
Bi bl
Vl bl t t
z
B
as
i
c sym
b
o
l
s
z
Functional elements
z
Flowlines
z
V
a
l
ve sym
b
o
l
s
t
ruc
t
ure
z
Valve functions
z
Three position valves
z
Connections
z
Conditioners and plant
z
Pressure regulators
z
Operators
z
Port marking
z
Function components
z
Pressure

regulators
z
Relief valves
z
Function

components
z
Symbol Library
Click the section to advance directly to it

3. GraphicSymbolsStandards Graphic

Symbols

Standards
z
Pneumatic symbols conform to and are devised f th I t ti lSt d dISO1219
1 1991
f
rom
th
e
I
n
t
erna
ti
ona
l

St
an
d
ar
d

ISO

1219
-
1

1991
z
This covers graphical symbols for Fluid Power SystemsandComponents Systems

and

Components
z
Port markings for fluid power valves are not
covered by the ISO standard. These are taken
fth dti fCETOPRP68P f
rom
th
e recommen
d
a
ti
ons o
f

CETOP

RP

68

P

4. CETOP CETOP
z
Who is CETOP? CETOP is the abbreviation of Comité Européen des
Transmissions Oléoh
y
drauli
q
ues et Pneumati
q
ues. CETOP is the
yq q
European Fluid Power Committee. Thus, it is:
z
· The communication platform for fluid power in Europe. ·
The international umbrella organisation for national fluid power

The

international

umbrella

organisation

for

national

fluid

power

associations in Europe.
z
Through the 18 national associations which are member of CETOP, all
well known companies in Europe belong to the European Committee. Many of these companies are leading fluid power manufacturers and Many

of

these

companies

are

leading

fluid

power

manufacturers

and

major players in the international markets.
z
CETOP represents more than 1,000 companies - mainly manufacturers,
but also some dealers - with almost 70,000 employees and a market value of abo t 13 billion EURO These acco nt for a er high proportion of of

abo
u
t

13

billion

EURO
.
These

acco
u
nt

for

a
v
er
y
high

proportion

of

companies active in these fields - 80-90% in most countries.

5. Basic Symbols

6. Shapes Shapes
z
These shapes and lines in the relative
ti h k t fb i
propor
ti
ons s
h
own, ma
k
e up a se
t
o
f

b
as
i
c
symbols from which fluid power symbols and
circuits are constructed

7. BasicSymbols(shapes) Basic

Symbols

(shapes)
z
Symbol sets can be drawn to any size but their
ldlti ti dtidb
sca
l
e an
d
re
l
a
ti
ve propor
ti
ons are
d
e
t
erm
i
ne
d

b
y
a basic dimension of your choice “l”
Circles
lenergy conversion units
l
3/4
measuring instrument
l
3/4
measuring

instrument
l
1/3
mechanical link
l
1/3
roller

8. BasicSymbols(shapes) Basic

Symbols

(shapes)
l
Square
control component
connections
perpendicular to sides
Square at 45
o
conditioning apparatus connections to corners
l
45 Rectangle
cylinders and valves
l
> l

9. BasicSymbols(shapes) Basic

Symbols

(shapes)
1/4
l
Rectangles continued
piston
l
1/4
l
cushion
min 1
l
1/2
l
certain control
methods, length
between limits to
1/2
l
between

limits

to

suit
max 2
l
1/2
l

10. BasicSymbols Basic

Symbols
rotary actuator motor
Semi
circle
l
rotary

actuator
,
motor

or pump with limited
angle of rotation
Semi
-
circle
Capsule
pressurised reservoir air receiver, auxiliary
b ttl
2
l
l
mechanical connection
Doubleline
gas
b
o
ttl
e
mechanical

connection
piston rod, lever, shaft
Double

line
1/5
l

11. BasicSymbols Basic

Symbols
2
12 10
Line
Working line, pilot supply,
return, electrical
1 3
Dashed
Pilot control, bleed, filter
Chain
Enclosure of two or more
functions in one unit
Line
Electrical line

12. Functional Elements

13. FunctionalElements Functional

Elements
1/4
l
1/2
l
Triangle
Direction and nature of fluid,
open pneumatic or filled
hydraulic size to suit
Spring
Lon
g
slo
p
in
g
indicates
Arrow
1/3
l
gpg
adjustability
1/3
l

14. FunctionalElements Functional

Elements
Straight or sloping
path and flow
direction, or motion
Arrows Tee
Closed path or port Size to suit
Restriction

15. FunctionalElements Functional

Elements
rotary motion
Curved arrows
clockwise from right hand end
Shaft rotation
anti
-
clockwise from right hand end
90
o
an
g
le
Seatin
g
anti
-
clockwise

from

right

hand

end
both
g
g

16. FunctionalElements Functional

Elements
Indication or control
size to suit
Temperature
Operator
Opposed solenoid windin
g
s
g
Prime mover
M
M
Electric motor

17. Flowlines and Connections

18. Flowlines Flowlines
Junction
Single
Junction
Single
Junction
Four way junction not connected
CrossingJunction
Four

way

junction
not

connected
Crossing
Hose usually connecting
Fl ibl
Hose

usually

connecting
parts with relative movement
Fl
ex
ibl
e
line

19. Connections Connections
Continuous
Air bleed
Temporary by probe
Air exhaust
No means of
connection
With means of connection

20. Connections Connections
Both to exhaust
Coupling quick
release
Coupling quick releaseselfsealing
Source sealed
release

self

sealing
Cou
p
lin
g

q
uick
Both sealed
pgq
release self sealing

21. Connections Connections
Rotary connection one
line
Rotary connection two lines lines Rotar
y
connection
y
three lines

22. Conditioners and Pressure
Producing Plant

23. Conditioners Conditioners
z
Water separator with manual drain manual

drain
z
Water separator with automatic drain automatic

drain
z
Filter with manual drain
z
Filter with automatic drain
z
Lubricator

24. Conditioners Conditioners
z
Dryer
z
Cooler with and without coolant flow lines coolant

flow

lines
z
Heater
z
Combined heater / cooler

25. Plant Plant
z
Compressor and electric motor
M
electric

motor
z
Air receiver
z
Isolating valve
z
Air inlet filter

26. Pressure Control

27. Pressureregulators Pressure

regulators
z
A pressure regulator symbol represents a normal state with the spring holding the regulator valve open to connect the the

spring

holding

the

regulator

valve

open

to

connect

the

supply to the outlet.
z
The dotted line represents the feedback, this opposes the
spring and can vary the flow through the valve from full spring

and

can

vary

the

flow

through

the

valve

from

full

flow, through shut off, to exhaust. The symbol is usually
drawn in only this one state. The flow path can be imagined
to hin
g
e at the ri
g
ht hand end to first shut off the su
pp
l
y

gg ppy
then connect to the exhaust.
z
Adjustable Regulator
z
Adjustable Regulator with p
ressure
g
au
g
e sim
p
lified
simplified
pggp

28. FilterRegulatorLubricator Filter

Regulator

Lubricator
z
FRL Combined unit
z
FRL Simplified symbol
z
FRL

Simplified

symbol

29. Pressurereliefvalves Pressure

relief

valves
z
A pressure relief valve symbol represents a normal state with the spring holding the valve closed with

the

spring

holding

the

valve

closed
.
z
The dotted line represents feed-forward, this opposes the spring and can be imagined to lift the flow path When the spring

and

can

be

imagined

to

lift

the

flow

path
.
When

the

pressure reaches an excess value the flow path will line up
with the ports and flow air to relief.
z
Adjustable relief valve simplified simplified
z
Preset relief valve sim
p
lified
p

30. A
ctuators

31. Actuators Actuators
z
Cylinders symbols can be any length over
“
l”
“l”
any

length

over

l
z
The piston and rod can be
shown in the retracted,
extended or any extended

or

any

intermediate position

32. Singleacting Single

acting
z
Single acting sprung instroked instroked
z
Single acting sprung outstroked outstroked
z
Single acting sprung instroked magnetic
*
instroked

magnetic
z
Single acting sprung outstroked magnetic
*
outstroked

magnetic

* ISO 1219-1 provides no example for magnetic cylinders

33. Singleactingwithoutspring Single

acting

without

spring
z
Single acting normally instroked external force returns external

force

returns
z
Single acting normally outstroked external force returns external

force

returns
z
Single acting normally instroked magnetic external force returns magnetic

external

force

returns

z
Single acting normally outstroked magnetic external force returns magnetic

external

force

returns

Note: the hardware is usually double acting cylinders applied as single acting

34. Doubleacting Double

acting
z
Double acting adjustable cushions cushions
z
Double acting through rodrod
z
Double acting magnetic *
z
Double acting rodless *
*
ISO 1219-1 provides no example for magnetic or rodless cylinders

35. Rotaryactuators Rotary

actuators
z
Semi rotary double acting acting
z
Rotary motor single direction of rotation direction

of

rotation
z
Rotary motor bi- directional directional

36. Simplifiedcylindersymbols Simplified

cylinder

symbols
z
Single acting load returns
z
Single acting spring returns returns
z
Double acting non cushioned cushioned
z
Double acting adjustable cushions cushions
z
Double acting
throu
g
h rod
g

37. V
alve symbol structure

38. Valvesymbolstructure Valve

symbol

structure

z
The function of a valve is given by a pair of
ltdbtk3/2
numera
l
s separa
t
e
d

b
y a s
t
ro
k
e, e.g.
3/2
..
z
The first numeral indicates the number of main ports.Theseareinlets,outletsandexhaustsbut ports.

These

are

inlets,

outlets

and

exhausts

but

excludes signal ports and external pilot feeds.
z
The second numeral indicates the number of
tt th l hi
s
t
a
t
es
th
e va
l
ve can ac
hi
eve.

39. Valvesymbolstructure Valve

symbol

structure
z
A 3/2 valve therefore has 3 ports (normally these
i l t tl t d h t) d2 t t (th
are
i
n
l
e
t
, ou
tl
e
t
an
d
ex
h
aus
t)
an
d

2
s
t
a
t
es
(th
e
normal state and the operated state)
z
Theboxesaretwopicturesofthesamevalve
z
The

boxes

are

two

pictures

of

the

same

valve

normal operated

40. Valvesymbolstructure Valve

symbol

structure
z
A valve symbol shows the pictures for each of th l t t j i d dt d th
e va
l
ve s
t
a
t
es
j
o
i
ne
d
en
d

t
o en
d
normal operated

41. Valvesymbolstructure Valve

symbol

structure
z
A valve symbol shows the pictures for each of th l t t j i d dt d th
e va
l
ve s
t
a
t
es
j
o
i
ne
d
en
d

t
o en
d
normal operated

42. Valvesymbolstructure Valve

symbol

structure
z
The port connections are shown to only one of th di t i di t th ili t t th
e
di
agrams
t
o
i
n
di
ca
t
e
th
e preva
ili
ng s
t
a
t
e
normal

43. Valvesymbolstructure Valve

symbol

structure
z
The operator for a particular state is illustrated
itthttt
aga
i
ns
t

th
a
t
s
t
a
t
e
O
p
erated state
p
produced by
pushing a button

44. Valvesymbolstructure Valve

symbol

structure
z
The operator for a particular state is illustrated
itthttt
aga
i
ns
t

th
a
t
s
t
a
t
e
O
p
erated state Normal state
p
produced by
pushing a button
produced by
a spring

45. Valvesymbolstructure Valve

symbol

structure
z
The operator for a particular state is illustrated
itthttt
aga
i
ns
t

th
a
t
s
t
a
t
e
O
p
erated state Normal state
p
produced by
pushing a button
produced by
a spring

46. Valvesymbolstructure Valve

symbol

structure
z
The valve symbol can be visualised as moving to
li t t th ithth t
a
li
gn one s
t
a
t
e or ano
th
er w
ith

th
e por
t

connections

47. Valvesymbolstructure Valve

symbol

structure
z
The valve symbol can be visualised as moving to
li t t th ithth t
a
li
gn one s
t
a
t
e or ano
th
er w
ith

th
e por
t

connections

48. Valvesymbolstructure Valve

symbol

structure
z
The valve symbol can be visualised as moving to
li t t th ithth t
a
li
gn one s
t
a
t
e or ano
th
er w
ith

th
e por
t

connections

49. Valvesymbolstructure Valve

symbol

structure
z
A 5/2 valve symbol is constructed in a similar
Ait fth l fl thf hf
way.
A
p
i
c
t
ure o
f

th
e va
l
ve
fl
ow pa
th
s
f
or eac
h
o
f

the two states is shown by the two boxes. The 5
p
orts are normall
y
an inlet, 2 outlets and 2
py exhausts

50. Valvesymbolstructure Valve

symbol

structure
z
The full symbol is then made by joining the two b d ddi t Th ti b
oxes an
d
a
ddi
ng opera
t
ors.
Th
e connec
ti
ons
are shown against only the prevailing state

51. Valvesymbolstructure Valve

symbol

structure
z
The full symbol is then made by joining the two b d ddi t Th ti b
oxes an
d
a
ddi
ng opera
t
ors.
Th
e connec
ti
ons
are shown against only the prevailing state

52. Valvesymbolstructure Valve

symbol

structure
z
The full symbol is then made by joining the two b d ddi t Th ti b
oxes an
d
a
ddi
ng opera
t
ors.
Th
e connec
ti
ons
are shown against only the prevailing state

53. Valvesymbolstructure Valve

symbol

structure
z
The recommended spacing of the connections
1/4
l
1 /4
l
1/4
l
1
l
1/4
l
1/2
l
1/2
l
1/2
l
1/4
l
1/2
l
1/4
l
1/2
l

54. Valvesymbolstructure Valve

symbol

structure
z
The boxes can be joined at either end but the
t tb d i tth t t th tit
opera
t
or mus
t

b
e
d
rawn aga
i
ns
t

th
e s
t
a
t
e
th
a
t

it

produces. The boxes can also be flipped
z
Avarietyofsymbolpatternsarepossible
z
A

variety

of

symbol

patterns

are

possible
normally
closed
normally
open

55. Valvesymbolstructure Valve

symbol

structure
z
The boxes can be joined at either end but the
t tb d i tth t t th tit
opera
t
or mus
t

b
e
d
rawn aga
i
ns
t

th
e s
t
a
t
e
th
a
t

it

produces. The boxes can also be flipped
z
Avarietyofsymbolpatternscanbeproduced
z
A

variety

of

symbol

patterns

can

be

produced Reverse connected

56. V
alve functions

57. Valvefunctions Valve

functions
Basic valves before operators are added
Examples, push button operated with spring return
Normal position
operators

are

added
with

spring

return
Function 2/2 Function 3/2

58. Valvefunctions Valve

functions
Basic valves before operators are added
Examples, push button operated with spring return
Operated position
operators

are

added
with

spring

return
Function 2/2 Function 3/2

59. Valvefunctions Valve

functions
Basic valves before operators are added
Examples, push button operated with spring return
Normal position
operators

are

added
with

spring

return
Function 4/2 Function 5/2

60. Valvefunctions Valve

functions
Basic valves before operators are added
Examples, push button operated with spring return
Operated position
operators

are

added
with

spring

return
Function 4/2 Function 5/2

61. Valvefunctions5/3 Valve

functions

5/3
z
Three position valves have a normal central
iti th ti tb i ith l
pos
iti
on
th
a
t

i
s se
t

b
y spr
i
ngs or w
ith
a manua
l

control such as a lever
z
Theflowpatterninthecentrepositionvaries
z
The

flow

pattern

in

the

centre

position

varies

with the type. Three types will be considered
z
1, All ports sealed
z
2, Outlets to exhaust, supply sealed
z
3, Supply to both outlets, exhausts sealed

62. Valves5/3 Valves

5/3
z
All valves types shown in the normal position
z
Type 1. All ports sealed
z
Type 2. Outlets to exhaust T3Slttlt
z
T
ype
3
.
S
upp
l
y
t
o ou
tl
e
t
s

63. Valves5/3 Valves

5/3
z
All valves types shown in the first operated position
z
Type 1. All ports sealed
z
Type 2. Outlets to exhaust T3Slttlt
z
T
ype
3
.
S
upp
l
y
t
o ou
tl
e
t
s

64. Valves5/3 Valves

5/3
z
All valves types shown in the normal position
z
Type 1. All ports sealed
z
Type 2. Outlets to exhaust T3Slttlt
z
T
ype
3
.
S
upp
l
y
t
o ou
tl
e
t
s

65. Valves5/3 Valves

5/3
z
All valves types shown in the second operated position
z
Type 1. All ports sealed
z
Type 2. Outlets to exhaust T3Slttlt
z
T
ype
3
.
S
upp
l
y
t
o ou
tl
e
t
s

66. Valves5/3 Valves

5/3
z
All valves types shown in the normal position
z
Type 1. All ports sealed
z
Type 2. Outlets to exhaust T3Slttlt
z
T
ype
3
.
S
upp
l
y
t
o ou
tl
e
t
s

67. Operators

68. Operators Operators Manual General manual Lever Push button Pedal Pull button Treadle Push/pull button
Rotary knob

69. Operators Operators Mechanical Plunger Pressure Spring normally
as a return
Pilot pressure Roller Differential pressure Uni-direction
or one way trip
Detent in 3 positions

70. Operators Operators Electrical Solenoid
direct
Solenoid pilot
with manual
override and
Solenoid pilot
override

and

external pilot
supply
Solenoid pilot with manual override and integral pilot
When no integral or external pilot supply is shown it is assumed to be
and

integral

pilot

supply
is

assumed

to

be

integral

71. Port markings

72. PortMarkings Port

Markings
To CETOP RP68P
2
12 10
2
12 10
1
1 3
2 4
14 12
24
14 12
1
53
13

73. PortMarkings Port

Markings
To CETOP RP68P
2
12 10
2
12 10
11 3
2 4
14 12
24
14 12
1
53
13

74. PortMarkings Port

Markings
To CETOP RP68P
2
12 10
2
12 10
1
1 3
2 4
14 12
24
14 12
1
53
13

75. PortMarkings Port

Markings
To CETOP RP68P
2
12 10
2
12 10
1
1 3
2 4
14 12
24
14 12
1
53
13

76. PortMarkings Port

Markings
To CETOP RP68P
2
12 10
2
12 10
1
1 3
2 4
14 12
24
14 12
1
53
13

77. Function components

78. Functioncomponents Function

components
z
Non-return valve simplified simplified
z
Flow regulator uni- directional directional
z
Flow regulator bi- directional simplified directional

simplified
Note:The output can exhaust
back and is not trapped
z
Two pressure ‘AND’
simplified simplified
z
Shuttle valve ‘OR’
sim
p
lified
p

79. Functioncomponents Function

components
z
Quick exhaust valve with silencer simplified silencer

simplified
z
Silencer
z
Pressure to electric switch preset switch

preset
z
Pressure to electric switch adjustable switch

adjustable

80. SymbolLibrary Symbol

Library
z
Actuators
z
Function Components
z
Actuators
z
Solenoid Valves Vl
z
Function

Components
z
Vacuum
z
V
a
l
ves
z
Air Line
z
Electrical and
electronic
Click the section arrow to go to it

81. SymbolLibrary Symbol

Library
Actuators

82. Singleactingcylinders Single

acting

cylinders
Si
Mti
z
S
prung
i
n
z
M
agne
ti
c
sprung in
non-rotating
rod
z
Sprung out
rod
z
Ma
g
netic
z
Magnetic sprung in
g
sprung out non-rotating rod
z
Magnetic s
p
run
g
out
pg

83. Singleactingcylinders Single

acting

cylinders
Si
z
S
prung
i
n
adjustable cushion
z
Sprung out adjustable cushion
z
Magnetic sprung in adjustable cushion
z
Magnetic sprung out ad
j
ustable cushion
j

84. Singleactingcylinders Single

acting

cylinders
Si
z
S
prung
i
n
adjustable cushion
non-rotating rod
z
Sprung out adjustable cushion non-rotatin
g
rod
g
z
Magnetic sprung in adjustable cushion
tti d
non-ro
t
a
ti
ng ro
d
z
Magnetic sprung out ad
j
ustable cushion
j
non-rotating rod

85. Singleactingbellows Single

acting

bellows
Bll i l
z
B
e
ll
ows s
i
ng
l
e
convolution
z
Bellows double convolution
z
Bellows triple convolution

86. Doubleactingcylinders Double

acting

cylinders
N
ti
Mti
z
N
on-magne
ti
c
z
M
agne
ti
c
hydraulic
z
Non-magnetic adjustable cushioned
z
Magnetic adjustable cushioned
z
Non-magnetic rod bellows
z
Magnetic adjustable
hi d
cus
hi
one
d

rod bellows
z
Magnetic

87. Doubleactingcylinders Double

acting

cylinders
N
Mti
z
N
on-
rotating rod
z
M
agne
ti
c
non-
rotating rod
z
Active brake
z
Magnetic active brake
z
Passive brake
z
Magnetic passive bkb
ra
k
e
z
Guided rod magnetic

88. Doubleactingcylinders Double

acting

cylinders
N
ti th h
z
N
on-magne
ti
c
th
roug
h

rod
z
Non-magnetic adjustable cushioned through rod
z
Magnetic through rod
z
Magnetic adjustable cushioned through rod

89. Doubleactingcylinders Double

acting

cylinders
Th iti dj t bl
z
Th
ree pos
iti
on a
dj
us
t
a
bl
e
cushions (equal strokes)
z
Three position adjustable cushions magnetic (equal strokes)
z
Four position adjustable cushions (unequal strokes
))
z
Four position adjustable cushions magnetic (unequal strokes) (unequal

strokes)

90. Otheractuators Other

actuators
With l t i l
z
With
e
l
ec
t
ron
i
c ana
l
ogue
output of piston position
z
Slide unit
z
Semi-rotary actuator
z
Rotary motor bi-directional and non-reversible

91. Rodlesscylinders Rodless

cylinders
z
Cushioned
z
Cushioned magnetic
z
Cushioned
passive
brake
z
Cushioned
magnetic
p
assive brake
p
z
Cushioned active brake
z
Cushioned magnetic
active

brake
magnetic

active brake

92. Rodlesscylinders Rodless

cylinders
z
Twin stroke
z
Twin stroke
cushioned
air through
carriage
z
Twin stroke cushioned ma
g
netic
z
Twin stroke air through carria
g
e
g
g
magnetic

93. Shockabsorbers Shock

absorbers
z
Self adjusting
z
Adjustable

94. End

95. SymbolLibrary Symbol

Library
Air Line Equipment

96. Combinationunits Combination

units
z
FRL with shut off valve
and pressure gauge
z
Lubro-control unit
z
Filter and lubricator

97. Combinationunits Combination

units
z
Breathing air set
z
Filter regulator
z
Filter regulator with gauge

98. Filters Filters
z
Filter with manual drain
z
Filter with automatic drain
z
Filter with automatic drain and pressure drop
indicator

99. Pressureregulators Pressure

regulators
z
Pre-set relieving
z
Pre-set relieving with
pressure gauge
z
Adjustable relieving
z
Adjustable relieving with pressure gauge

100. Pressureregulators Pressure

regulators
z
Pilot operated
z
Pilot regulator with
independent feedback
z
Pilot operated regulator controlled from pilot re
g
ulator
g

101. Pressureregulators Pressure

regulators
z
Precision dual stage
(11-818)
z
Proportional pressure
2
z
Proportional

pressure

valve
1
3

102. Lubricator Lubricator
z
Lubricator

103. Pressurereliefvalves Pressure

relief

valves
z
Preset, no means of
connection to exhaust
z
Preset, tapped exhaust port
z
Adjustable, no means of connection to exhaust Pil t t d
z
Adjustable, tapped exhaust port
z
Pil
o
t
opera
t
e
d

104. Othercomponents Other

components
z
Silencer
z
Filter silencer
z
Water separator
automatic drain

105. End

106. SymbolLibrary Symbol

Library
Electrical and Electronic

107. Sensors Sensors
z
Reed switch 2 wire
brown +V
Loads must be additionally suppressed
z
Reed

switch

2

wire
z
Reed switch changeover
blue
Load
0V
blue
black
0V
0V
Load Load
z
Reed switch 3 wire with led indicator
(emulating current sourcing pnp device)
brown +V
brown +V
blue 0V
Load
0V black
z
Reed switch 3 wire with led indicator
(emulating current sinking npn device)
brown +V
blue 0V
Load
+V black
z
Reed switch 2 wire with led indicator
brown +V
blue
Load
0V

108. Sensors Sensors
z
Solid state magnetic sensor pnp (current
brown +V
Loads must be additionally suppressed
z
Solid

state

magnetic

sensor

pnp

(current

sourcing)
z
Solid state magnetic sensor plug in cable
pnp (current sourcing)
blue 0V
black
pnp
Load
0V
1
3
4
pnp
brown +V
blue 0V
bl k
pnp

(current

sourcing)

z
Solid state magnetic sensor npn
(current sinking)
4
bl
ac
k
Load
0V
1
brown +V
black
npn
Load
+V
blue 0V
z
Solid state magnetic sensor plug in
cable npn (current sinking)
S lid t t ti ith l
1
3
4
npn
brown +V
black
Load
+V
blue 0V
brown +V
z
S
o
lid
s
t
a
t
e magne
ti
c sensor w
ith
pu
l
se
extension
black
Load
0V
brown

+V
blue 0V

109. Sensors Sensors
1
brown +V
Loads must be additionally suppressed
z
Reed switch 2 wire with led indicator and
plug in cable
z
Reed switch 2 wire with led indicator and
1
+brown
4
black
Load
0V
plug in cable
+

brown
blue
Load
0V

110. Electrical Symbols

111. Electricalsymbols Electrical

symbols
z
Direct current (DC)
z
Line to earth
(

DC

)
z
Alternating current (AC )
z
Line to chassis
current

(
AC

)
z
AC or DC
z
Cell
z
Positive and negative polarity
z
Battery
12 V
or
negative

polarity

112. ElectricalComponents Electrical

Components
Normally open
Normally closed
Normally open
Normally closed
z
Relay contact
z
General manual switch contact
open
closed
open
closed
switch

contact
z
Push button contact
z
Roller switch contact
contact
z
Pull button contact
contact
z
Delay to operate
contact
z
Twist switch
contact
z
Delay to reset

113. ElectricalComponents Electrical

Components
z
Relay coil
z
Relay coil delay to operate contacts operate

contacts
z
Relay coil delay to reset contacts reset

contacts
z
Solenoid valve coilcoil

114. ElectricalComponents Electrical

Components
z
Proximity switch
z
Bell
z
Touch sensitive switch
z
Buzzer
switch
z
Pressure switch
z
Microphone
P
z
Supply and
return
z
Loudspeaker
24V
0V

115. Electronic Component Symbols

116. ElectronicComponents Electronic

Components
z
Opto-isolator
z
Resistors
Resistor
z
Windings
z
inductor inductor with core
z
Resistor
z
Variable
z
Potentiometer Pre
set pot
z
inductor

with

core
z
variable inductor
z
transformer
or
V
z
Pre
-
set

pot
z
Voltage
dependent z
Light dependent
z
Capacitors
z
capacitor polarised
z
Diodes
z
diode zener diode
z
Light

dependent
z
polarised

capacitor
z
variable capacitor z
pre
-
set capacitor
z
zener

diode
z
light emitting diode
z
pre
-
set

capacitor

117. ElectronicComponents Electronic

Components
z
Thyristor
z
Fuse
z
Triac
z
Wires connected
or
z
NPN Transistor
z
Wires crossing
z
PNP Transistor
z
Double junction
or
z
Photo-transistor

118. ElectronicComponents Electronic

Components
z
Conductors in a cable
z
Motors dc & ac
M
M
in

a

cable
z
Conductors twisted
z
Generator
G
twisted
z
Plug and socket
z
Lamp steady & flashing
z
Coaxial plug and socket
&

flashing
z
Operational amplifier
z
Meters for
am
p
s
,
volts
,

socket
amplifier
A
V
p, ,
ohms & watts
W

119. End

120. SymbolLibrary Symbol

Library
Function Fittings and Components

121. Functionfittings Function

fittings
Bl ki fitti
2
12
z
Bl
oc
ki
ng
fitti
ng
1
12
12
z
Pressure reducing
fittin
g
1
1
g
Pti
1 2
z
P
neuma
ti
c sensor
fitting

122. Functioncomponents Function

components
Ai f
z
Ai
r
f
use
z
Non return valve
z
Non return valve

123. Functioncomponents Function

components
bi
di ti l fl
z
bi
-
di
rec
ti
ona
l

fl
ow
regulator
z
Exhaust flow Exhaust

flow

regulator with and
without silencer
Sil
z
Shuttle valve ‘OR’
z
Sil
encers
z
Two pressure valve ‘AND’ (will exhaust either signal back) either

signal

back)

124. Functioncomponents Function

components
z
Uni
directional
z
Uni
-
directional

flow regulator
z
Quick exhaust
z
Quick

exhaust

valve with and
without silencer
z
Rotating joint
z
Pressure indicator
z
Pressure drop indicator

125. Quickreleasecouplings Quick

release

couplings
z
Both to exhaust
madereleased
z
Source sealed
z
Both

to

exhaust
z
Both sealed

126. End

127. SymbolLibrary Symbol

Library
Solenoid Valves

128. Solenoidvalves Solenoid

valves
with man override
on the solenoid
z
Direct solenoid actuated
spring return 2/2 NC
12
2
10
2
10 12
z
Direct solenoid actuated spring return 3/2 NC
2
2
10
12
1210
spring

return

3/2

NC
Di t l id t t d
1 3 2
10
12
2
1210
1 3
z
Di
rec
t
so
l
eno
id
ac
t
ua
t
e
d

spring return 3/2 NO
1 3
1 3

129. Solenoidvalves Solenoid

valves
with man override
on the solenoid
z
Pilot solenoid actuated
spring return 3/2 NC
1
2
3
12 10
1
2
3
12 10
z
Pilot solenoid actuated spring return 3/2 NO
2
12 10
2
12 10
spring

return

3/2

NO
Pil t l id t t d
2
2
1 3
1 3
z
Pil
o
t
so
l
eno
id
ac
t
ua
t
e
d

pilot solenoid return
12
3
12 10
12
3
10
12

130. Solenoidvalves Solenoid

valves
2 4
14
12
Pil t l id t t d
1 53
14
12
z
Pil
o
t
so
l
eno
id
ac
t
ua
t
e
d

spring return, 5/2
2 4
14
12
z
Pilot solenoid actuated
spring return and manual
override, 5/2
1 53
14
12
2
4
z
Pilot solenoid actuated
pilot solenoid return, 5/2
2
4
1
2
4
53
14 12
z
Pilot solenoid actuated
pilot solenoid return and
manual override, 5/2
1
2
4
53
14 12

131. Solenoidvalves Solenoid

valves
2 4
Pil t l id t t d
14
12
Reverse piped
z
Pil
o
t
so
l
eno
id
ac
t
ua
t
e
d

spring return, 5/2
1 53
14
12
2 4
14
12
z
Pilot solenoid actuated
spring return and manual
override, 5/2
1 53
14
12
2
4
z
Pilot solenoid actuated
and returned, 5/2
2
4
1
2
4
53
14 12
z
Pilot solenoid actuated
and returned with manual
overrides, 5/2
2
4
1 53
14 12

132. Solenoidvalves Solenoid

valves
2
4
14
12
z
Double pilot solenoid
actuated spring to centre
all ports sealed reverse piped
12
4
53
14
12
piped
12
3
10 12
z
Priority pilot solenoid
actuated differential air
1
3
2 4
14 12
return, 3/2
z
Priority pilot solenoid actuated differential air
1 53
actuated

differential

air

return, 5/2

133. Solenoidvalves Solenoid

valves
z
Priority pilot solenoid actuated differential air
2
10 12
actuated

differential

air

return, 3/2
1 3
2 4
14 12
z
Priority pilot solenoid
ttddiff tili
2
10
12
1 53
ac
t
ua
t
e
d

diff
eren
ti
a
l
a
i
r
return, 5/2
z
Priorit
y

p
ilot solenoid
z
Priority pilot solenoid
2 4
14
12
1
310
12
yp
actuated air spring return,
3/2
z
Priority

pilot

solenoid

actuated air spring return,
5/2
153
14
12

134. Solenoidvalves Solenoid

valves
Pil t l id t t d
2 4
14
12
z
Pil
o
t
so
l
eno
id
ac
t
ua
t
e
d

spring return, manual
override, 5/2 with integral
flow regulators
1 53
14
12
flow

regulators
z
Double pilot solenoid
actuated, manual
id 5/2 ith i t l
1
2 4
53
14 12
overr
id
e,
5/2
w
ith

i
n
t
egra
l

flow regulators

135. Solenoidvalves Solenoid

valves
2 4
14
12
z
Double pilot solenoid
actuated, spring to centre
all ports sealed, 5/3 with integral flo reg lators
1 53
integral

flo
w
reg
u
lators
z
Double pilot solenoid
actuated, spring to centre
lld/3ih
1
2 4
53
14
12
supp
l
y port sea
l
e
d
, 5
/3
w
i
t
h

integral flow regulators
z
Double pilot solenoid
2 4
14
12
actuated, spring to centre
supply to outlets, 5/3 with
integral flow regulators
1 53

136. Proportionalsolenoidvalves Proportional

solenoid

valves
2 4
z
Proportional flow to
electrical signal
1 53
z
Proportional pressure to
electrical signal
1
2
3
1
3

137. Safetyrelatedvalves Safety

related

valves
z
Monitored dump valve
210 12
z
Monitored

dump

valve
1 3
z
Soft start valve
2
12
10
1 3
10

138. End

139. SymbolLibrary Symbol

Library
Valves

140. Valvesun
-
tappedexhaust
Valves

un
tapped

exhaust
z
Plunger actuated spring
2
1210
return 3/2
1 3
2
1210
z
Roller actuated spring return 3/2
1
2
3
1210
1 3
z
Push button actuated
spring return 3/2
return

3/2

z
Rotary knob actuated
1
2
3
1210
2
12
10
z
Toggle actuated
detented 3/2
z
Rotary

knob

actuated

detented 3/2
z
Key actuated
detented 3/2
1 3
12
10
2
1210
detented

3/2
1 3

141. Valvesintegralbleedsupply Valves

integral

bleed

supply
z
Plunger / bleed actuated
2
1210
air return 3/2
z
Roller / bleed actuated air return 3/2
2
1210
1
3
z
One way trip / bleed
actuated air return 3/2
return

3/2

2
1210
3
1
3
z
Antenna / bleed actuated
z
Low pressure / bleed
actuated air return 3/2
2
12
10
2
1210
1
3
1
z
Antenna

/

bleed

actuated

air return 3/2
12
10
1
3

142. Valvesexternalbleedsupply Valves

external

bleed

supply
z
Plunger / bleed actuated
2
1210
air return 3/2
z
Roller / bleed actuated air return 3/2
3
1
2
1210
z
One way trip / bleed
actuated air return 3/2
return

3/2

2
1210
3
3
1
z
Antenna / bleed actuated
2
z
Low pressure / bleed
actuated air return 3/2
2
12
10
1210
3
1
1
z
Antenna

/

bleed

actuated

air return 3/2
12
10
3
1

143. Pilotactuatedvalves Pilot

actuated

valves
z
Pilot actuated spring
2
12 2
NC NO
z
Pilot

actuated

spring

return 2/2
2
10 12
1
10
1
2
z
Pilot actuated spring
return 3/2
12
3
1210
2 1 3
1210
2
2
12
3
1210
2 1 3
1210
z
Double pilot actuated 3/2
z
Differential pilot actuated
3/2
2
1 3
1210
1
2
3
1210

144. Pilotactuatedvalves Pilot

actuated

valves
z
Pressure or vacuum
NC NO
2
12
2
12
z
Pressure

or

vacuum

actuated spring return
2/2 (diaphragm valve)
12
3
12
10
2 1 3
12
10
2
2
z
Low pressure pilot
actuated spring
return 3/2
2
12
3
1210
2 1 3
1210
2
z
Low pressure pilot
actuated pilot
return, 3/2
2 1 3
1210
12
3
1210
z
Low pressure pilot
actuated and
returned, 3/2
2 1 3
1210
1
2
3
1210

145. Pilotactuatedvalves Pilot

actuated

valves
z
Remote pressure
2
1210
12 2
10
bleed actuated spring
return, NC, 3/2
z
Remote press re
1 3
1
2
12
2
z
Remote

press
u
re

bleed actuated spring
return, NO, 3/2
2 1 3
1210
12
2
10
1
z
Remote pressure
bleed actuated spring
return
,
5/2
12 2
10
1
1
2 4
53
14 12
,

146. Pilotactuatedvalves Pilot

actuated

valves
Pilot act ated spring
2
4
z
Pilot

act
u
ated

spring

return, 4/2
z
Pilot actuated spring
12
4 3
14 12
2 4
14
12
z
Pilot

actuated

spring

return, 5/2
z
Double pilot actuated 5/2
1 53
14
12
2 4
14
12
z
Double

pilot

actuated

5/2
2 4
z
Differential pilot actuated
14
12
1 53
14
12
z
Differential

pilot

actuated

5/2
1 53
14
12

147. Pilotactuatedvalves Pilot

actuated

valves
z
Pressure or vacuum
2 4
14
12
z
Pressure

or

vacuum

actuated spring return,
5/2 (diaphragm valve)
1 53
2 4
14
12
z
Low pressure pilot
actuated spring
return, 5/2
1 53
14
12
2 4
14
12
z
Low pressure pilot
actuated pilot
return, 5/2
1 53
14
12
2 4
14
12
z
Low pressure pilot
actuated and
returned, 5/2
1 53
14
12

148. Pilotactuatedvalves Pilot

actuated

valves
2 4
z
Double pilot actuated
spring to centre all ports
sealed
1 53
z
Double pilot actuated
spring to centre supply
ld
1
2 4
53
port sea
l
e
d
z
Double pilot actuated
2 4
spring to centre supply to
outlets
1 53

149. Mechanicallyactuatedvalves Mechanically

actuated

valves
NC NO
z
Plunger actuated spring
return 2/2
12 2
10
1
2
10 12
1
z
Plunger actuated spring return 3/2
2
1210
1
2
1210
1
return

3/2

Pl t t d i t
1 3
1 3 2
12
10
2
12
10
z
Pl
unger ac
t
ua
t
e
d
a
i
r rese
t

3/2
1 3
12
10
1 3
12
10

150. Mechanicallyactuatedvalves Mechanically

actuated

valves
Pl t t d i
24
14
12
z
Pl
unger ac
t
ua
t
e
d
spr
i
ng
return, 4/2
1
3
14
12
z
Plunger actuated spring return, 5/2
1
2 4
53
14 12
z
Plun
g
er actuated air reset
2 4
14 12
g
5/2
1 53

151. Mechanicallyactuatedvalves Mechanically

actuated

valves
NC NO
z
Roller actuated spring
return 2/2
12 2
10
1
2
10 12
1
z
Roller actuated spring return 3/2
22
1210
1210
1
1
return

3/2

Rll t tdi t
1 3
1 3 2
12
10
2
12
10
z
R
o
ll
er ac
t
ua
t
e
d
a
i
r rese
t

3/2
1 3
12
10
1 3
12
10

152. Mechanicallyactuatedvalves Mechanically

actuated

valves
Rll t td i
24
14
12
z
R
o
ll
er ac
t
ua
t
e
d
spr
i
ng
return, 4/2
1
3
14
12
z
Roller actuated spring return, 5/2
1
2 4
53
14 12
z
Roller actuated air reset
2 4
14 12
5/2
1 53

153. Mechanicallyactuatedvalves Mechanically

actuated

valves
NC NO
z
One way trip actuated
spring return 2/2
12 2
10
1
2
10 12
1
z
One way trip actuated spring return 3/2
2
1210
2
1210
spring

return

3/2

Otittdi
1 3
1 3
2
12
10
2
12
10
z
O
ne way
t
r
i
p ac
t
ua
t
e
d
a
i
r
reset 3/2
1 3
12
10
1 3
12
10

154. Mechanicallyactuatedvalves Mechanically

actuated

valves
Otittd
24
14
12
z
O
ne way
t
r
i
p ac
t
ua
t
e
d

spring return, 4/2
1
3
14
12
z
One way trip actuated spring return, 5/2
1
2 4
53
14 12
z
One wa
y
tri
p
actuated air
2 4
14 12
yp
reset 5/2
1 53

155. Manuallyactuatedvalves Manually

actuated

valves
NC NO
z
Push button actuated
spring return 2/2
2
10 12
1
12 2
10
1
z
Push button actuated spring return 3/2
2
1210
2
1210
spring

return

3/2

Phbtt ttdi
1 3
1 3 2
12
10
2
12
10
z
P
us
h

b
u
tt
on ac
t
ua
t
e
d
a
i
r
reset 3/2
1 3
12
10
1 3
12
10

156. Manuallyactuatedvalves Manually

actuated

valves
Phbtt ttd
24
14
12
z
P
us
h

b
u
tt
on ac
t
ua
t
e
d

spring return, 4/2
1
3
14
12
z
Push button actuated spring return, 5/2
1
2 4
53
14 12
z
Push button actuated air
2 4
14 12
reset 5/2
1 53

157. Manuallyactuatedvalves Manually

actuated

valves
NC NO
z
Lever actuated spring
return 2/2
12
2
10
1
2
10
12
1
z
Lever actuated spring return 3/2
2
12
10
2
12
10
return

3/2

Lttdit
1 3
1 3 2
10
2
10
z
L
ever ac
t
ua
t
e
d
a
i
r rese
t

3/2
1 3
12
10
12
1 3
10

158. Manuallyactuatedvalves Manually

actuated

valves
Lttdi
24
12
z
L
ever ac
t
ua
t
e
d
spr
i
ng
return, 4/2
1
3
1412
z
Lever actuated spring
return, 5/2
1
2 4
53
14
12
z
Lever actuated air reset
2 4
12
5/2
1 53
14

159. Manuallyactuatedvalves Manually

actuated

valves
Lttdl
24
12
z
L
ever ac
t
ua
t
e
d

l
ever
return, variable throttling,
4/2
14
1
3
12
z
Lever actuated lever return, variable throttling, dd4/2
24
12
1
3
14
d
etente
d
,
4/2
z
Rotar
y
knob actuated and
14
24
12
y
returned, variable
throttling, 4/2
1
3

160. Manuallyactuatedvalves Manually

actuated

valves
24
14 12
z
Lever actuated spring to
centre all ports sealed
1 53
z
Lever actuated spring to
centre supply port sealed
1
24
53
14 12
z
Lever actuated spring to
24
14 12
centre supply to outlets
1 53

161. Manuallyactuatedvalves Manually

actuated

valves
24
14
z
Lever actuated, detented,
all ports sealed centre
1 53
12
z
Lever actuated, detented,
supply port sealed centre
1
24
53
14
12
z
Lever actuated, detented,
24
14
12
supply to outlets centre
1 53
12

162. Manuallyactuatedvalves Manually

actuated

valves
NC NO
z
Pedal actuated spring
return 3/2
1
2
3
12
10
2 1 3
12
10
z
Treadle actuated detented 3/2
12
3
12
10
2 1
3
12
10
3/2
1
3
1
3

163. Manuallyactuatedvalves Manually

actuated

valves
Pdl t td i
24
14
z
P
e
d
a
l
ac
t
ua
t
e
d
spr
i
ng
return, 4/2
1
3
14
12
z
Pedal actuated spring return, 5/2
1
2 4
53
14
12
z
Treadle actuated detented
2 4 14
12
5/2
1 53

164. Manuallyactuatedvalves Manually

actuated

valves
24
14 12
z
Treadle actuated spring
to centre all ports sealed
1 53
z
Treadle actuated spring to
centre supply port sealed
1
24
53
14 12

165. Manuallyactuatedvalves Manually

actuated

valves
24
14
z
Treadle actuated,
detented, all ports sealed
centre
1 53
12
z
Treadle actuated,
detented, supply port
ld
1
24
53
14
12
sea
l
e
d
centre

166. Manuallyactuatedvalves Manually

actuated

valves
Phbtt ttd
2
z
P
us
h

b
u
tt
on ac
t
ua
t
e
d

rotary manual return 3/2
Phbtt ttdk
1
2
3
12 10
2
z
P
us
h

b
u
tt
on ac
t
ua
t
e
d

k
ey
return 3/2
2
Phttd ll
1
2
3
12 10
z
Push actuated pull or air
2
12
3
1210
z
P
us
h
ac
t
ua
t
e
d
pu
ll

returned 3/2
z
Push

actuated

pull

or

air

returned 3/2
12
3
1210

167. Safetyrelatedvalves Safety

related

valves
z
Monitored dump valve
210 12
z
Monitored

dump

valve
1 3
z
Emergency stop valve
1
2
3
1210
z
Soft start valve
2
12
10
1 3

168. Specialpurposevalves Special

purpose

valves
2
z
Impulse generator
12
3

169. End

170. SymbolLibrary Symbol

Library
Vacuum Equipment

171. Vacuumequipment Vacuum

equipment
z
Vacuum generator
z
Vacuum cups
z
Vacuum switch
2
2
NO NC
pneumatic
1 3
1 3

172. Vacuumequipment Vacuum

equipment
z
Vacuum switch electric,
normally open and
normally closed
z
Vacuum transducer with analog and switched
V dc
Analog out
Switch out
0 V
+V dc supply (brown) Analog out (white) Switch out (black) 0 V (blue)
Load
outputs npn
z
Vacuum transducer with
+V dc supply (brown) Analog out (white) Switch out (black) 0V(blue)
Load
V dc
Analog out
Switch out
0V
analog and switched
outputs pnp
0

V

(blue)
0

V

173. Vacuumequipment Vacuum

equipment
z
Vacuum filter
z
Vacuum silencer
z
Vacuum gauge

174. End