pneumatic schematics using graphic symbols to illustrate basic circuit designs
TRANSCRIPT
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Pneumatic SchematicsUsing Graphic Symbols to
Illustrate Basic Circuit Designs
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3/2 Solenoid Valve
Regulator
Pneumatic Components
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
HPA Storage Bottle
Regulator4/2 Valve
HP Gage
LP Gage
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A B
PEA EB
5/2 Solenoid ValveNote: The center port with the brass One Touch Fitting is the supply or pressure port.
5/2 Solenoid ValveSymbol
Solenoid
Valve Body
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5/3 Solenoid ValveUsed on Double Acting Cylinders
The Solenoid Operates Like a Linear Pneumatic Motor
1.) Wire coil (red) is energized
2.) The electromagnetic field, draws the iron armature (blue) into the solenoid
3.) The valve spool (green) moves with the iron
armatureSolenoid
Valve Spool
Springs return valve spool to rest position
AB
PEB EA
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A B
PEA EB
5/2 Solenoid ValveUsed on Double Acting Cylinders
5 Ports, 2 Positions
The 2 Dark Blocks Represent the Two Possible Valve Positions
Solenoid At Rest Position
Solenoid Energized Position
B Pressurized : A Exhausted (rest)A Pressurized : B Exhausted (energized)
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A B
PEA EB
5/2 Solenoid ValveUsed on Double Acting Cylinders
5 Ports, 2 Positions
Return Spring Symbol Indicates the At Rest Position
Actuator Symbol with a Diagonal Line Indicates Solenoid Operation
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A B
PEA EB
5/2 Solenoid ValveUsed on Double Acting Cylinders
5 Ports, 2 Positions
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
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Hopefully the Hieroglyphics of Pneumatics are More Understandable
Double Acting Cylinder
HPA Storage Bottle
Regulator4/2 Valve
HP Gage
LP Gage
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Watch the 2 Position Valve and Double Acting Cylinder
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EAEB P
AB
A B
PEA EB
5/2 Valve5 Ports 2 Positions
5/3 Valve5 Ports 3 Positions
Can You Explain the Difference?
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Pictorial Drawing of a 5/3 Valve and Double Acting Cylinder
PEB EA
ABNote: At Rest, Ports A and B are Exhausted P is
Closed
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Mini Pneumatic CircuitsPressurized Storage Bottle
Regulator
3/2 Valves
Pneumatic Cylinders with Speed Valves
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Pneumatic SchematicsThe Best Way to Learn Them,
Is to Draw Them….Try It.