PNEUMATIC

             Understanding the basic of pneumatic




Aditya@poltekom.ac.id
Definition
• Pneumatic is a system / tools that is worked
  basically using the air pressure / air flow
• Therefore the force / work / displacement
  generated based on the general law of air
  pressure and flow
• Pneumatic is an actuator using the air
  pressure as their source of power
Comparison
   Pneumatic                                       Electric

Air pressure            Power source        Electric current

Directional valve    Controller component   Transistors

Slow                   Signal delivery      Fast

strong               Energy conversion      Weak
Comparison
     Pneumatic                         Electric

Cylinders                        Motors, linear motor

Directional valve                Transistors/contactors


Logic valves                     Op amps


Button valve                     Button / switch



Air pressure                     Battery
WORKING ELEMENTS / ACTUATING DEVICES



          Single / double acting cylinder
SINGLE ACTING CYLINDER

   Forcible surface



                                                          Spring return

                            DEpressurized chamber



       Pressurized
        chamber




Air pressure port                        Exhaust port /
  / supply port                           waste port
SINGLE ACTING CYLINDER

   Forcible surface




Air pressure port
  / supply port
DOUBLE ACTING CYLINDER

       Forcible surface



                                                                 Spring return



                                  DEpressurized chamber
           Pressurized
            chamber




Air pressure port / supply port        Air pressure port / supply port
 + Exhaust port / waste port            + Exhaust port / waste port
DOUBLE ACTING CYLINDER

          Forcible surface




Air pressure port / supply port   Air pressure port / supply port
 + Exhaust port / waste port       + Exhaust port / waste port
CONTROL ELEMENTS / ACTUATING DEVICES



         Logic Valves / Directional valves
Two pressure valve
Shuttle valve
M/n valves


M   : Number of ports
N   : Number of direction set / position
Valve nomenclature
Port designation (ISO-5599-3)
Actuation option
Actuation option
Actuation option
Actuation option
Non return valves
Linear actuators
Non return valves
Single acting direct actuating
Double acting direct actuating
Component designation
Component designation
System circuit diagram
Pneumatic 1

Pneumatic 1