Pneumatic Schematics

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Pneumatic Schematics
Using Graphic Symbols to Illustrate Basic Circuit
Designs
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Pneumatic Components
Regulator
3/2 Solenoid Valve
Single Acting Pull Type Cylinder and Speed Valve
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Pneumatic Component Symbols
3/2 Solenoid Valve
Regulator
Single Acting Pull Type Cylinder and Speed Valve
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The Symbols Can Be Arranged to Illustrate
Complete Circuits
Double Acting Cylinder
HP Gage
HPA Storage Bottle
4/2 Valve
Regulator
LP Gage
5
5/2 Solenoid Valve
Valve Body
Note The center port with the brass One Touch
Fitting is the supply or pressure port.
Solenoid
5/2 Solenoid Valve Symbol
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5/3 Solenoid Valve
Used on Double Acting Cylinders
The Solenoid Operates Like a Linear Pneumatic
Motor
1.) Wire coil (red) is energized
3.) The valve spool (green) moves with the iron
armature
Solenoid
A
B
Valve Spool
P
EB
EA
2.) The electromagnetic field, draws the iron
armature (blue) into the solenoid
Springs return valve spool to rest position
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5/2 Solenoid Valve
Used on Double Acting Cylinders
The 2 Dark Blocks Represent the Two Possible
Valve Positions
B Pressurized A Exhausted (rest) A Pressurized
B Exhausted (energized)
Solenoid At Rest Position
Solenoid Energized Position
5 Ports, 2 Positions
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5/2 Solenoid Valve
Used on Double Acting Cylinders
Actuator Symbol with a Diagonal Line Indicates
Solenoid Operation
Return Spring Symbol Indicates the At Rest
Position
5 Ports, 2 Positions
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5/2 Solenoid Valve
Used on Double Acting Cylinders
Letters A and B Indicate the Output Port
Connections for the Pneumatic Actuators
(Cylinders)
The Arrow Symbols Indicate the Direction of Gas
Flow Through the Valve
EA and EB are Exhaust Ports. P is the Gas
Supply Port
5 Ports, 2 Positions
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Hopefully the Hieroglyphics of Pneumatics are
More Understandable
Double Acting Cylinder
HP Gage
HPA Storage Bottle
4/2 Valve
Regulator
LP Gage
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Watch the 2 Position Valve and Double Acting
Cylinder
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5/2 Valve 5 Ports 2 Positions
Can You Explain the Difference?
5/3 Valve 5 Ports 3 Positions
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Pictorial Drawing of a 5/3 Valve and Double
Acting Cylinder
Note At Rest, Ports A and B are Exhausted P is
Closed
A
B
P
EB
EA
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Mini Pneumatic Circuits
Pressurized Storage Bottle
Regulator
3/2 Valves
Pneumatic Cylinders with Speed Valves
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Pneumatic Schematics
The Best Way to Learn Them, Is to Draw
Them.Try It.