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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 Electric

Pneumatic Air pressure Directional valve Slow strong

Power source Controller component

Signal delivery

Energy conversion

Electric current Transistors Fast 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 / supply port

Exhaust 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 + Exhaust port / waste port

Air pressure port / supply port + Exhaust port / waste port


DOUBLE ACTING CYLINDER Forcible surface

Air pressure port / supply port + Exhaust port / waste port

Air pressure port / supply port + Exhaust port / waste port


CONTROL ELEMENTS / ACTUATING DEVICES

Logic Valves / Directional valves


Two pressure valve


Shuttle valve


M/n valves

M N

: Number of ports : 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