pneumatic symbolspneumatic symbols · graphic symbols standardsgraphic symbols standards zpneumatic...
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Pneumatic SymbolsPneumatic Symbols
For system diagrams and component identification
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ContentsContentsStandards ActuatorsB i b l V l b l t tBasic symbolsFunctional elementsFlowlines
Valve symbol structureValve functionsThree position valves
ConnectionsConditioners and plantPressure regulators
OperatorsPort markingFunction componentsPressure regulators
Relief valvesFunction componentsSymbol Library
Click the section to advance directly to it
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Graphic Symbols StandardsGraphic Symbols StandardsPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219 1 1991from the International Standard ISO 1219-1 1991This covers graphical symbols for Fluid Power Systems and ComponentsSystems and ComponentsPort markings for fluid power valves are not covered by the ISO standard. These are taken f th d ti f CETOP RP 68 Pfrom the recommendations of CETOP RP 68 P
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CETOPCETOPWho is CETOP? CETOP is the abbreviation of Comité Européen des Transmissions Oléohydrauliques et Pneumatiques. CETOP is the y q qEuropean Fluid Power Committee. Thus, it is:· 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.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 andMany of these companies are leading fluid power manufacturers and major players in the international markets.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 ofof about 13 billion EURO. These account for a very high proportion of companies active in these fields - 80-90% in most countries.
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Basic Symbols
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ShapesShapesThese shapes and lines in the relative
ti h k t f b iproportions shown, make up a set of basic symbols from which fluid power symbols and circuits are constructed
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Basic Symbols (shapes)Basic Symbols (shapes)Symbol sets can be drawn to any size but their
l d l ti ti d t i d bscale and relative proportions are determined by a basic dimension of your choice “l”
Circles l energy conversion units
l3/4 measuring instrumentl3/4 measuring instrument
l1/3 mechanical link
l1/3 roller
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Basic Symbols (shapes)Basic Symbols (shapes)l
Square control componentconnections perpendicular to sides
Square at 45o
conditioning apparatusconnections to corners
l
45
Rectangle cylinders and valvesl
> l
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Basic Symbols (shapes)Basic Symbols (shapes)1/4 l
Rectanglescontinued
pistonl
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
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Basic SymbolsBasic Symbols
rotary actuator motorSemi circlel
rotary actuator, motor or pump with limited angle of rotation
Semi-circle
Capsule pressurised reservoir air receiver, auxiliary
b ttl
2 ll
mechanical connectionDouble line
gas bottle
mechanical connectionpiston rod, lever, shaft
Double line1/5 l
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Basic SymbolsBasic Symbols2
12 10
Line Working line, pilot supply,return, electrical 13
Dashed Pilot control, bleed, filter
Chain Enclosure of two or morefunctions in one unit
Line Electrical line
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Functional Elements
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Functional ElementsFunctional Elements
1/4 l 1/2 l
Triangle Direction and nature of fluid,open pneumatic or filled hydraulic
size to suitSpring
Long sloping indicatesArrow 1/3 l g p gadjustability1/3 l
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Functional ElementsFunctional Elements
Straight or slopingpath and flow direction, or motion
Arrows
Tee Closed path or port
Size to suitRestriction
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Functional ElementsFunctional Elements
rotary motionCurved arrows
clockwise from right hand endShaft rotationanti-clockwise from right hand end
90o angleSeating
anti-clockwise from right hand endboth
gg
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Functional ElementsFunctional Elements
Indication or controlsize to suit
Temperature
Operator Opposed solenoid windingsg
Prime mover M MElectric motor
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Flowlines and Connections
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FlowlinesFlowlines
Junction SingleJunction Single
Junction Four way junction
not connectedCrossing
Junction Four way junction
not connectedCrossing
Hose usually connectingFl ibl Hose usually connectingparts with relative movement
Flexibleline
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ConnectionsConnections
ContinuousAir bleed
Temporary by probe
Air exhaust No means of connection
With means of connection
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ConnectionsConnections
Both to exhaustCoupling quick release
Coupling quick release self sealing
Source sealedrelease self sealing
Coupling quick Both sealedp g qrelease self sealing
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ConnectionsConnections
Rotary connection one line
Rotary connection two lineslines
Rotary connection ythree lines
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Conditioners and Pressure Producing Plant
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ConditionersConditionersWater separator with manual drainmanual drain
Water separator with automatic drainautomatic drain
Filter with manual drain
Filter with automatic drain
Lubricator
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ConditionersConditionersDryer
Cooler with and without coolant flow linescoolant flow lines
Heater
Combined heater / cooler
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PlantPlantCompressor and electric motor
Melectric motor
Air receiver
Isolating valve
Air inlet filter
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Pressure Control
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Pressure regulatorsPressure regulatorsA pressure regulator symbol represents a normal state with the spring holding the regulator valve open to connect thethe spring holding the regulator valve open to connect the supply to the outlet.The dotted line represents the feedback, this opposes the spring and can vary the flow through the valve from fullspring 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 hinge at the right hand end to first shut off the supply g g pp ythen connect to the exhaust.
Adjustable Regulator
Adjustable Regulator with pressure gauge simplified
simplified
p g g p
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Filter Regulator LubricatorFilter Regulator Lubricator
FRL Combined unit
FRL Simplified symbolFRL Simplified symbol
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Pressure relief valvesPressure relief valvesA pressure relief valve symbol represents a normal state with the spring holding the valve closedwith the spring holding the valve closed.
The dotted line represents feed-forward, this opposes the spring and can be imagined to lift the flow path When thespring 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.
Adjustable relief valve simplifiedsimplified
Preset relief valve simplifiedp
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Actuators
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ActuatorsActuatorsCylinders symbols can be any length over “l”
“l”any length over lThe piston and rod can be shown in the retracted, extended or anyextended or any intermediate position
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Single actingSingle actingSingle acting sprung instrokedinstroked
Single acting sprung outstrokedoutstroked
Single acting sprung instroked magnetic *instroked magnetic
Single acting sprung outstroked magnetic *outstroked magnetic
* ISO 1219-1 provides no example for magnetic cylinders
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Single acting without springSingle acting without springSingle acting normally instroked external force returnsexternal force returns
Single acting normally outstroked external force returnsexternal force returns
Single acting normally instroked magnetic external force returnsmagnetic external force returns
Single acting normally outstroked magnetic external force returnsmagnetic external force returns
Note: the hardware is usually double acting cylinders applied as single acting
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Double actingDouble actingDouble acting adjustable cushionscushions
Double acting through rodrod
Double acting magnetic *
Double acting rodless *
* ISO 1219-1 provides no example for magnetic or rodless cylinders
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Rotary actuatorsRotary actuatorsSemi rotary double actingacting
Rotary motor single direction of rotationdirection of rotation
Rotary motor bi-directionaldirectional
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Simplified cylinder symbolsSimplified cylinder symbolsSingle acting load returns
Single acting spring returnsreturns
Double acting non cushionedcushioned
Double acting adjustable cushionscushions
Double acting through rodg
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Valve symbol structure
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Valve symbol structureValve symbol structure The function of a valve is given by a pair of
l t d b t k 3/2numerals separated by a stroke, e.g. 3/2..The first numeral indicates the number of main ports. These are inlets, outlets and exhausts butports. These are inlets, outlets and exhausts but excludes signal ports and external pilot feeds.The second numeral indicates the number of t t th l histates the valve can achieve.
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Valve symbol structureValve symbol structureA 3/2 valve therefore has 3 ports (normally these
i l t tl t d h t) d 2 t t (thare inlet, outlet and exhaust) and 2 states (the normal state and the operated state)The boxes are two pictures of the same valveThe boxes are two pictures of the same valve
normaloperated
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Valve symbol structureValve symbol structureA valve symbol shows the pictures for each of th l t t j i d d t dthe valve states joined end to end
normaloperated
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Valve symbol structureValve symbol structureA valve symbol shows the pictures for each of th l t t j i d d t dthe valve states joined end to end
normaloperated
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Valve symbol structureValve symbol structureThe port connections are shown to only one of th di t i di t th ili t tthe diagrams to indicate the prevailing state
normal
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Valve symbol structureValve symbol structureThe operator for a particular state is illustrated
i t th t t tagainst that state
Operated state pproduced bypushing a button
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Valve symbol structureValve symbol structureThe operator for a particular state is illustrated
i t th t t tagainst that state
Operated state Normal state pproduced bypushing a button
produced bya spring
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Valve symbol structureValve symbol structureThe operator for a particular state is illustrated
i t th t t tagainst that state
Operated state Normal state pproduced bypushing a button
produced bya spring
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Valve symbol structureValve symbol structureThe valve symbol can be visualised as moving to li t t th ith th talign one state or another with the port
connections
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Valve symbol structureValve symbol structureThe valve symbol can be visualised as moving to li t t th ith th talign one state or another with the port
connections
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Valve symbol structureValve symbol structureThe valve symbol can be visualised as moving to li t t th ith th talign one state or another with the port
connections
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Valve symbol structureValve symbol structureA 5/2 valve symbol is constructed in a similar
A i t f th l fl th f h fway. A picture of the valve flow paths for each of the two states is shown by the two boxes. The 5 ports are normally an inlet, 2 outlets and 2 p yexhausts
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Valve symbol structureValve symbol structureThe full symbol is then made by joining the two b d ddi t Th tiboxes and adding operators. The connections are shown against only the prevailing state
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Valve symbol structureValve symbol structureThe full symbol is then made by joining the two b d ddi t Th tiboxes and adding operators. The connections are shown against only the prevailing state
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Valve symbol structureValve symbol structureThe full symbol is then made by joining the two b d ddi t Th tiboxes and adding operators. The connections are shown against only the prevailing state
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Valve symbol structureValve symbol structureThe 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
![Page 54: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/54.jpg)
Valve symbol structureValve symbol structureThe boxes can be joined at either end but the
t t b d i t th t t th t itoperator must be drawn against the state that it produces. The boxes can also be flippedA variety of symbol patterns are possibleA variety of symbol patterns are possible
normallyclosed
normallyopen
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Valve symbol structureValve symbol structureThe boxes can be joined at either end but the
t t b d i t th t t th t itoperator must be drawn against the state that it produces. The boxes can also be flippedA variety of symbol patterns can be producedA variety of symbol patterns can be produced
Reverse connected
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Valve functions
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Valve functionsValve functionsBasic valves beforeoperators are added
Examples, push button operatedwith spring return
Normal position
operators are added with spring return
Function 2/2
Function 3/2
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Valve functionsValve functionsBasic valves beforeoperators are added
Examples, push button operatedwith spring return
Operated position
operators are added with spring return
Function 2/2
Function 3/2
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Valve functionsValve functionsBasic valves beforeoperators are added
Examples, push button operatedwith spring return
Normal position
operators are added with spring return
Function 4/2
Function 5/2
![Page 60: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/60.jpg)
Valve functionsValve functionsBasic valves beforeoperators are added
Examples, push button operatedwith spring return
Operated position
operators are added with spring return
Function 4/2
Function 5/2
![Page 61: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/61.jpg)
Valve functions 5/3Valve functions 5/3Three position valves have a normal central
iti th t i t b i ith lposition that is set by springs or with a manual control such as a leverThe flow pattern in the centre position variesThe flow pattern in the centre position varies with the type. Three types will be considered1, All ports sealed2, Outlets to exhaust, supply sealed3, Supply to both outlets, exhausts sealed
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Valves 5/3Valves 5/3All valves types shown in the normal position
Type 1. All ports sealed
Type 2. Outlets to exhaust
T 3 S l t tl tType 3. Supply to outlets
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Valves 5/3Valves 5/3All valves types shown in the first operated position
Type 1. All ports sealed
Type 2. Outlets to exhaust
T 3 S l t tl tType 3. Supply to outlets
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Valves 5/3Valves 5/3All valves types shown in the normal position
Type 1. All ports sealed
Type 2. Outlets to exhaust
T 3 S l t tl tType 3. Supply to outlets
![Page 65: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/65.jpg)
Valves 5/3Valves 5/3All valves types shown in the second operated position
Type 1. All ports sealed
Type 2. Outlets to exhaust
T 3 S l t tl tType 3. Supply to outlets
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Valves 5/3Valves 5/3All valves types shown in the normal position
Type 1. All ports sealed
Type 2. Outlets to exhaust
T 3 S l t tl tType 3. Supply to outlets
![Page 67: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/67.jpg)
Operators
![Page 68: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/68.jpg)
OperatorsOperatorsManual
General manual Lever
Push button Pedal
Pull button Treadle
Push/pull button Rotary knob
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OperatorsOperatorsMechanical
Plunger Pressure
Spring normally as a return
Pilot pressure
Roller Differential pressure
Uni-direction or one way trip
Detent in 3 positions
![Page 70: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/70.jpg)
OperatorsOperatorsElectrical
Solenoid direct
Solenoid pilotwith manual override and
Solenoid pilot
override and external pilot supply
Solenoid pilotwith manual overrideand integral pilot
When no integral or external pilot supply is shown it is assumed to beand integral pilot
supplyis assumed to be integral
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Port markings
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Port MarkingsPort MarkingsTo CETOP RP68P
212 10
212 10
1 13
2414 12
2 414 12
15 3
1 3
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Port MarkingsPort MarkingsTo CETOP RP68P
212 10
212 10
1 13
2414 12
2 414 12
15 3
1 3
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Port MarkingsPort MarkingsTo CETOP RP68P
212 10
212 10
1 13
2414 12
2 414 12
15 3
1 3
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Port MarkingsPort MarkingsTo CETOP RP68P
212 10
212 10
1 13
2414 12
2 414 12
15 3
1 3
![Page 76: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/76.jpg)
Port MarkingsPort MarkingsTo CETOP RP68P
212 10
212 10
1 13
2414 12
2 414 12
15 3
1 3
![Page 77: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/77.jpg)
Function components
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Function componentsFunction componentsNon-return valve simplifiedsimplified
Flow regulator uni-directionaldirectional
Flow regulator bi-directional simplifieddirectional simplified
Note: The output can exhaust back and is not trapped
Two pressure ‘AND’ simplifiedsimplified
Shuttle valve ‘OR’ simplifiedp
![Page 79: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/79.jpg)
Function componentsFunction componentsQuick exhaust valve with silencer simplifiedsilencer simplified
Silencer
Pressure to electric switch presetswitch preset
Pressure to electric switch adjustableswitch adjustable
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Symbol LibrarySymbol Library
Actuators Function ComponentsActuators
Solenoid Valves
V l
Function Components
Vacuum
Valves
Air Line
Electrical and electronic
Click the section arrow to go to it
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Symbol LibrarySymbol Library
Actuators
![Page 82: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/82.jpg)
Single acting cylindersSingle acting cylinders
S i M tiSprung in Magnetic sprung in non-rotating rod
Sprung outrod
Magnetic
Magnetic sprung in
gsprung out non-rotating rod
Magnetic sprung outp g
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Single acting cylindersSingle acting cylinders
S iSprung in adjustable cushion
Sprung out adjustable cushion
Magnetic sprung in adjustable cushion
Magnetic sprung out adjustable cushionj
![Page 84: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/84.jpg)
Single acting cylindersSingle acting cylinders
S iSprung in adjustable cushion non-rotating rod
Sprung out adjustable cushion non-rotating rodg
Magnetic sprung in adjustable cushion
t ti dnon-rotating rod
Magnetic sprung out adjustable cushion jnon-rotating rod
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Single acting bellowsSingle acting bellows
B ll i lBellows single convolution
Bellows double convolution
Bellows triple convolution
![Page 86: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/86.jpg)
Double acting cylindersDouble acting cylinders
N ti M tiNon-magnetic Magnetic hydraulic
Non-magnetic adjustable cushioned
Magnetic adjustable cushioned
Non-magnetic rod bellows
Magnetic adjustable
hi dcushioned rod bellows
Magnetic
![Page 87: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/87.jpg)
Double acting cylindersDouble acting cylinders
N M tiNon-rotating rod
Magnetic non-rotating rod
Active brake
Magnetic active brake
Passive brake
Magnetic passive b kbrake
Guided rod magnetic
![Page 88: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/88.jpg)
Double acting cylindersDouble acting cylinders
N ti th hNon-magnetic through rod
Non-magnetic adjustable cushioned through rod
Magnetic through rod
Magnetic adjustable cushioned through rod
![Page 89: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/89.jpg)
Double acting cylindersDouble acting cylinders
Th iti dj t blThree position adjustable cushions (equal strokes)
Three position adjustable cushions magnetic (equal strokes)
Four position adjustable cushions (unequal strokes))
Four position adjustable cushions magnetic (unequal strokes)(unequal strokes)
![Page 90: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/90.jpg)
Other actuatorsOther actuators
With l t i lWith electronic analogue output of piston position
Slide unit
Semi-rotary actuator
Rotary motor bi-directional and non-reversible
![Page 91: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/91.jpg)
Rodless cylindersRodless cylinders
Cushioned Cushioned magnetic
Cushioned passive brake
Cushioned magnetic passive brakep
Cushioned active brake
Cushioned magneticactive brake magnetic active brake
![Page 92: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/92.jpg)
Rodless cylindersRodless cylinders
Twin stroke Twin stroke cushioned air through
carriage
Twin stroke cushioned magnetic
Twin stroke air through carriage g gmagnetic
![Page 93: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/93.jpg)
Shock absorbersShock absorbers
Self adjusting
Adjustable
![Page 94: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/94.jpg)
End
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Symbol LibrarySymbol Library
Air Line Equipment
![Page 96: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/96.jpg)
Combination unitsCombination units
FRL with shut off valve and pressure gauge
Lubro-control unit
Filter and lubricator
![Page 97: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/97.jpg)
Combination unitsCombination units
Breathing air set
Filter regulator
Filter regulator with gauge
![Page 98: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/98.jpg)
FiltersFilters
Filter with manual drain
Filter with automatic drain
Filter with automatic drain and pressure drop indicator
![Page 99: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/99.jpg)
Pressure regulatorsPressure regulators
Pre-set relieving
Pre-set relieving with pressure gauge
Adjustable relieving
Adjustable relieving with pressure gauge
![Page 100: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/100.jpg)
Pressure regulatorsPressure regulators
Pilot operated
Pilot regulator with independent feedback
Pilot operated regulator controlled from pilot regulatorg
![Page 101: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/101.jpg)
Pressure regulatorsPressure regulators
Precision dual stage (11-818)
Proportional pressure2
Proportional pressure valve 13
![Page 102: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/102.jpg)
LubricatorLubricator
Lubricator
![Page 103: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/103.jpg)
Pressure relief valvesPressure relief valves
Preset, no means of connection to exhaust
Preset, tapped exhaust port
Adjustable, no means of connection to exhaust
Pil t t d
Adjustable, tapped exhaust port
Pilot operated
![Page 104: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/104.jpg)
Other componentsOther components
Silencer
Filter silencer
Water separator automatic drain
![Page 105: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/105.jpg)
End
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Symbol LibrarySymbol Library
Electrical and Electronic
![Page 107: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/107.jpg)
SensorsSensors
Reed switch 2 wirebrown +V
Loads must be additionally suppressed
Reed switch 2 wire
Reed switch changeover
blue Load 0V
blue black
0V 0V Load
Load
Reed switch 3 wire with led indicator (emulating current sourcing pnp device)
brown +V
brown +Vblue 0V
Load0V black
Reed switch 3 wire with led indicator (emulating current sinking npn device)
brown +Vblue 0V
Load+V black
Reed switch 2 wire with led indicator brown +V
blue Load 0V
![Page 108: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/108.jpg)
SensorsSensors
Solid state magnetic sensor pnp (current brown +V
Loads must be additionally suppressed
Solid state magnetic sensor pnp (current sourcing)
Solid state magnetic sensor plug in cable pnp (current sourcing)
blue 0V black
pnpLoad 0V
13
4pnp
brown +Vblue 0V
bl kpnp (current sourcing)
Solid state magnetic sensor npn (current sinking)
4 black Load 0V
1
brown +Vblack
npnLoad +V
blue 0V
Solid state magnetic sensor plug in cable npn (current sinking) S lid t t ti ith l
1
3
4npn
brown +Vblack Load +V
blue 0V
brown +VSolid state magnetic sensor with pulse extension black Load 0V
brown +Vblue 0V
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SensorsSensors1 brown +V
Loads must be additionally suppressed
Reed switch 2 wire with led indicator and plug in cable
Reed switch 2 wire with led indicator and 1
+ brown
4 black Load 0V
plug in cable + brown
blue Load 0V
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Electrical Symbols
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Electrical symbolsElectrical symbolsDirect current ( DC )
Line to earth( DC )
Alternating current ( AC )
Line to chassiscurrent ( AC )
AC or DC Cell
Positive and negative polarity
Battery 12 Vor
negative polarity
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Electrical ComponentsElectrical ComponentsNormallyopen
Normallyclosed
Normallyopen
Normallyclosed
Relay contact General manual switch contact
open closed open closed
switch contact
Push button contact
Roller switch contactcontact
Pull button contact
contact
Delay to operatecontact
Twist switch contact
Delay to reset
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Electrical ComponentsElectrical ComponentsRelay coil
Relay coil delay to operate contactsoperate contacts
Relay coil delay to reset contactsreset contacts
Solenoid valve coilcoil
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Electrical ComponentsElectrical ComponentsProximity switch Bell
Touch sensitive switch
Buzzerswitch
Pressure switch MicrophoneP
Supply and return
Loudspeaker24V
0V
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Electronic Component Symbols
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Electronic ComponentsElectronic ComponentsOpto-isolator Resistors
ResistorWindings
inductorinductor with core
ResistorVariablePotentiometerPre set potinductor with core
variable inductortransformer or
V
Pre-set potVoltage dependentLight dependent
Capacitorscapacitorpolarised
Diodesdiodezener diode
Light dependent
polarised capacitorvariable capacitorpre-set capacitor
zener diodelight emitting diode
pre-set capacitor
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Electronic ComponentsElectronic ComponentsThyristor Fuse
Triac Wires connected or
NPN Transistor Wires crossing
PNP Transistor Double junction or
Photo-transistor
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Electronic ComponentsElectronic ComponentsConductors in a cable
Motors dc & ac MM
in a cable
Conductors twisted
Generator G
twisted
Plug and socket Lamp steady & flashing
Coaxial plug and socket
& flashing
Operational amplifier
Meters for amps, volts,
socket amplifier
A V
p , ,ohms & watts W
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End
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Symbol LibrarySymbol Library
Function Fittings and Components
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Function fittingsFunction fittings
Bl ki fitti2
12Blocking fitting1
12
1
2
Pressure reducing fitting 1
1
g
P ti 1
2Pneumatic sensor fitting
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Function componentsFunction components
Ai fAir fuse
Non return valve
Non return valve
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Function componentsFunction components
bi di ti l flbi-directional flow regulator
Exhaust flowExhaust flow regulator with and without silencer
Sil
Shuttle valve ‘OR’
Silencers
Two pressure valve ‘AND’ (will exhaust either signal back)either signal back)
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Function componentsFunction components
Uni directionalUni-directional flow regulator
Quick exhaustQuick exhaust valve with and without silencer
Rotating joint
Pressure indicator
Pressure drop indicator
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Quick release couplingsQuick release couplings
Both to exhaust
made released
Source sealed
Both to exhaust
Both sealed
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End
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Symbol LibrarySymbol Library
Solenoid Valves
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Solenoid valvesSolenoid valveswith man override on the solenoid
Direct solenoid actuated spring return 2/2 NC
12 210
21012
Direct solenoid actuated spring return 3/2 NC
2 210
1212 10
spring return 3/2 NC
Di t l id t t d
13
210
12212 10
13
Direct solenoid actuated spring return 3/2 NO 1313
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Solenoid valvesSolenoid valveswith man override on the solenoid
Pilot solenoid actuated spring return 3/2 NC
1
2
3
12 10
1
2
3
12 10
Pilot solenoid actuated spring return 3/2 NO
212 10
212 10
spring return 3/2 NO
Pil t l id t t d 2 2
13 13
Pilot solenoid actuated pilot solenoid return 1
2
3
12 10
1
2
3
1012
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Solenoid valvesSolenoid valves
2414 12Pil t l id t t d
15 3
14 12Pilot solenoid actuated spring return, 5/2
2414 12Pilot solenoid actuated
spring return and manual override, 5/2
15 3
14 12
24Pilot solenoid actuated pilot solenoid return, 5/2
24
1
24
5 3
14 12
Pilot solenoid actuated pilot solenoid return and manual override, 5/2
1
24
5 3
14 12
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Solenoid valvesSolenoid valves
24Pil t l id t t d 14 12
Reverse piped
Pilot solenoid actuated spring return, 5/2 15 3
14 12
2414 12Pilot solenoid actuated
spring return and manual override, 5/2
15 3
14 12
24Pilot solenoid actuated and returned, 5/2
24
1
24
5 3
14 12
Pilot solenoid actuated and returned with manual overrides, 5/2
24
15 3
14 12
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Solenoid valvesSolenoid valves
2414 12Double pilot solenoid actuated spring to centre all ports sealed reverse piped
1
24
5 3
14 12
piped
1
2
3
1012Priority pilot solenoid actuated differential air
13
2414 12
return, 3/2
Priority pilot solenoid actuated differential air
15 3actuated differential air return, 5/2
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Solenoid valvesSolenoid valvesPriority pilot solenoid actuated differential air
21012
actuated differential air return, 3/2 13
2414 12Priority pilot solenoid
t t d diff ti l i
21012
15 3actuated differential air return, 5/2
Priority pilot solenoid
Priority pilot solenoid 2414 12
13
1012y pactuated air spring return, 3/2
Priority pilot solenoid actuated air spring return, 5/2 15 3
14 12
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Solenoid valvesSolenoid valves
Pil t l id t t d24
14 12Pilot solenoid actuated spring return, manual override, 5/2 with integral flow regulators
15 3
14 12
flow regulatorsDouble pilot solenoid actuated, manual
id 5/2 ith i t l1
24
5 3
14 12
override, 5/2 with integral flow regulators
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Solenoid valvesSolenoid valves
2414 12Double pilot solenoid actuated, spring to centre all ports sealed, 5/3 with integral flo reg lators
15 3
integral flow regulatorsDouble pilot solenoid actuated, spring to centre
l l d /3 i h1
24
5 3
14 12
supply port sealed, 5/3 with integral flow regulatorsDouble pilot solenoid
2414 12
actuated, spring to centre supply to outlets, 5/3 with integral flow regulators
15 3
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Proportional solenoid valvesProportional solenoid valves24
Proportional flow to electrical signal
15 3
Proportional pressure to electrical signal
1
2
3 13
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Safety related valvesSafety related valves
Monitored dump valve2 1012
Monitored dump valve13
Soft start valve 212
10
13
10
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End
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Symbol LibrarySymbol Library
Valves
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Valves un-tapped exhaustValves un tapped exhaust
Plunger actuated spring 212 10
return 3/2 13
212 10Roller actuated spring
return 3/2
1
2
3
12 10
13
Push button actuated spring return 3/2
return 3/2
Rotary knob actuated1
2
3
12 10
212 10
Toggle actuated detented 3/2
Rotary knob actuated detented 3/2
Key actuated detented 3/2
13
12 10
212 10
detented 3/2 13
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Valves integral bleed supplyValves integral bleed supply
Plunger / bleed actuated 212 10
air return 3/2
Roller / bleed actuated air return 3/2
212 10
13
One way trip / bleed actuated air return 3/2
return 3/2 2
12 10
3
13
Antenna / bleed actuated
Low pressure / bleed actuated air return 3/2
212 10
212 10
13
1
Antenna / bleed actuated air return 3/2
12 10
13
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Valves external bleed supplyValves external bleed supply
Plunger / bleed actuated 212 10
air return 3/2
Roller / bleed actuated air return 3/2
312
12 10
One way trip / bleed actuated air return 3/2
return 3/2 2
12 10
3
31
Antenna / bleed actuated
2Low pressure / bleed actuated air return 3/2
212 10
12 10
31
1
Antenna / bleed actuated air return 3/2
12 10
31
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Pilot actuated valvesPilot actuated valves
Pilot actuated spring 2 12 2
NC NO
Pilot actuated spring return 2/2
2
1012
1
10
1
2Pilot actuated spring return 3/2
1
2
3
12 102
13
12 10
2 2
1
2
3
12 102
13
12 10Double pilot actuated 3/2
Differential pilot actuated 3/2
2
13
12 10
1
2
3
12 10
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Pilot actuated valvesPilot actuated valves
Pressure or vacuum
NC NO212 212Pressure or vacuum
actuated spring return 2/2 (diaphragm valve) 1
2
3
1210
2
13
1210
2 2Low pressure pilot actuated spring return 3/2
2
1
2
3
12 102
13
12 10
2Low pressure pilot actuated pilot return, 3/2
2
13
12 10
1
2
3
12 10
Low pressure pilot actuated and returned, 3/2
2
13
12 10
1
2
3
12 10
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Pilot actuated valvesPilot actuated valves
Remote pressure 212 10
12 210
bleed actuated spring return, NC, 3/2
Remote press re
131
212 2Remote pressure bleed actuated spring return, NO, 3/2
2
13
12 1012 2
10
1
Remote pressure bleed actuated spring return, 5/2
12 210
1 1
24
5 3
14 12
,
![Page 146: Pneumatic SymbolsPneumatic Symbols · Graphic Symbols StandardsGraphic Symbols Standards zPneumatic symbols conform to and are devised f th I t ti l St d d ISO 1219from the International](https://reader034.vdocument.in/reader034/viewer/2022050714/5e79500ab186df261635b7e0/html5/thumbnails/146.jpg)
Pilot actuated valvesPilot actuated valves
Pilot act ated spring 2 4Pilot actuated spring return, 4/2
Pilot actuated spring
1
2 4
3
14 12
2414 12Pilot actuated spring
return, 5/2
Double pilot actuated 5/2
15 3
14 12
2414 12Double pilot actuated 5/2
24Differential pilot actuated 14 12
15 3
14 12
Differential pilot actuated 5/2
15 3
14 12
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Pilot actuated valvesPilot actuated valves
Pressure or vacuum2414
12Pressure or vacuum actuated spring return, 5/2 (diaphragm valve)
15 3
2414 12Low pressure pilot
actuated spring return, 5/2
15 3
14 12
2414 12
Low pressure pilot actuated pilot return, 5/2
15 3
14 12
2414 12
Low pressure pilot actuated and returned, 5/2
15 3
14 12
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Pilot actuated valvesPilot actuated valves
24Double pilot actuated spring to centre all ports sealed
15 3
Double pilot actuated spring to centre supply
l d1
24
5 3port sealed
Double pilot actuated 24
spring to centre supply to outlets
15 3
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Mechanically actuated valvesMechanically actuated valvesNC NO
Plunger actuated spring return 2/2
12 210
1
21012
1
Plunger actuated spring return 3/2
212 10
1
212 10
1
return 3/2
Pl t t d i t
1313
212 10
212 10Plunger actuated air reset
3/2 13
12 10
13
12 10
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Mechanically actuated valvesMechanically actuated valves
Pl t t d i2 4
14 12Plunger actuated spring return, 4/2 1 3
14 12
Plunger actuated spring return, 5/2 1
24
5 3
14 12
Plunger actuated air reset 24
14 12g5/2 15 3
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Mechanically actuated valvesMechanically actuated valvesNC NO
Roller actuated spring return 2/2
12 210
1
21012
1
Roller actuated spring return 3/2
2 212 10 12 10
11
return 3/2
R ll t t d i t
13 13
212 10
212 10Roller actuated air reset
3/2 13
12 10
13
12 10
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Mechanically actuated valvesMechanically actuated valves
R ll t t d i2 4
14 12Roller actuated spring return, 4/2 1 3
14 12
Roller actuated spring return, 5/2 1
24
5 3
14 12
Roller actuated air reset 24
14 12
5/2 15 3
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Mechanically actuated valvesMechanically actuated valvesNC NO
One way trip actuated spring return 2/2
12 210
1
21012
1
One way trip actuated spring return 3/2
212 10
212 10
spring return 3/2
O t i t t d i
13 13
212 10
212 10One way trip actuated air
reset 3/2 13
12 10
13
12 10
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Mechanically actuated valvesMechanically actuated valves
O t i t t d2 4
14 12One way trip actuated spring return, 4/2 1 3
14 12
One way trip actuated spring return, 5/2 1
24
5 3
14 12
One way trip actuated air 24
14 12y preset 5/2 15 3
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Manually actuated valvesManually actuated valvesNC NO
Push button actuated spring return 2/2
21012
1
12 210
1
Push button actuated spring return 3/2
212 10
212 10
spring return 3/2
P h b tt t t d i
1313
212 10
212 10Push button actuated air
reset 3/2 13
12 10
13
12 10
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Manually actuated valvesManually actuated valves
P h b tt t t d2 4
14 12Push button actuated spring return, 4/2 1 3
14 12
Push button actuated spring return, 5/2 1
24
5 3
14 12
Push button actuated air 24
14 12
reset 5/2 15 3
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Manually actuated valvesManually actuated valvesNC NO
Lever actuated spring return 2/2 12
210
1
210
121
Lever actuated spring return 3/2
2
1210
2
1210
return 3/2
L t t d i t
1313
210
210Lever actuated air reset
3/2 1312
1012
13
10
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Manually actuated valvesManually actuated valves
L t t d i2 4
12Lever actuated spring return, 4/2 1 3
1412
Lever actuated spring return, 5/2 1
24
5 314
12
Lever actuated air reset 24
12
5/2 15 314
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Manually actuated valvesManually actuated valves
L t t d l2 4
12Lever actuated lever return, variable throttling, 4/2
141 3
12
Lever actuated lever return, variable throttling, d d 4/2
2 412
1 314
detented, 4/2
Rotary knob actuated and 142 4
12yreturned, variable throttling, 4/2 1 3
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Manually actuated valvesManually actuated valves
2414 12Lever actuated spring to centre all ports sealed 15 3
Lever actuated spring to centre supply port sealed 1
24
5 3
14 12
Lever actuated spring to 2414 12
centre supply to outlets 15 3
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Manually actuated valvesManually actuated valves
2414Lever actuated, detented, all ports sealed centre 15 3
12
Lever actuated, detented, supply port sealed centre 1
24
5 3
14
12
Lever actuated, detented, 2414
12supply to outlets centre 15 312
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Manually actuated valvesManually actuated valvesNC NO
Pedal actuated spring return 3/2 1
2
3
12
10
2
13
12
10
Treadle actuated detented 3/2 1
2
3
1210
2
13
12 10
3/2 13 13
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Manually actuated valvesManually actuated valves
P d l t t d i2 414Pedal actuated spring
return, 4/2 1 3
14 12
Pedal actuated spring return, 5/2 1
24
5 3
1412
Treadle actuated detented 2414
12
5/2 15 3
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Manually actuated valvesManually actuated valves
2414 12Treadle actuated spring to centre all ports sealed 15 3
Treadle actuated spring to centre supply port sealed 1
24
5 3
14 12
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Manually actuated valvesManually actuated valves
2414Treadle actuated, detented, all ports sealed centre
15 312
Treadle actuated, detented, supply port
l d1
24
5 3
14
12
sealed centre
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Manually actuated valvesManually actuated valves
P h b tt t t d 2Push button actuated rotary manual return 3/2
P h b tt t t d k
1
2
3
12 10
2Push button actuated key return 3/2
2P h t t d ll
1
2
3
12 10
Push actuated pull or air 2
1
2
3
12 10Push actuated pull returned 3/2
Push actuated pull or air returned 3/2
1
2
3
12 10
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Safety related valvesSafety related valves
Monitored dump valve2 1012
Monitored dump valve13
Emergency stop valve1
2
3
12 10
Soft start valve212
10
13
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Special purpose valvesSpecial purpose valves
2
Impulse generator 1
2
3
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End
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Symbol LibrarySymbol Library
Vacuum Equipment
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Vacuum equipmentVacuum equipment
Vacuum generator
Vacuum cups
Vacuum switch 2 2
NONC
pneumatic 13 13
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Vacuum equipmentVacuum equipment
Vacuum switch electric, normally open and normally closed
Vacuum transducer with analog and switched
V dcAnalog outSwitch out 0 V
+V dc supply (brown)Analog out (white)Switch out (black)0 V (blue) Load
outputs npn
Vacuum transducer with +V dc supply (brown)Analog out (white)Switch out (black)0 V (blue) Load
V dcAnalog outSwitch out 0 Vanalog and switched
outputs pnp
0 V (blue)0 V
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Vacuum equipmentVacuum equipment
Vacuum filter
Vacuum silencer
Vacuum gauge
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End