Hydraulic Beginner

HYDRAULIC Understanding the basic of hydraulic

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Comparison Pneumatic

Electric

Cylinders

Motors, linear motor

Directional valve

Transistors/contactors

Logic valves

Op amps

Button valve

Button / switch

Oil pump

Battery

1 bar = 1x105 1 𝑚𝑚2 = 1x10

𝑁

𝑚2 −6 2

𝑚

Hydraulic fluid transmission Let : F = Force (N) P = Pressure (N/m2) A = Area (m2)

Hydraulic fluid compensation Let : S = Displacement(m) A = Area (m2)

HYDRAULIC SYSTEM Actuator Directional control valve

Power pack

POWER PACK

Power element Actuators Directional control valves Flow control Pressure control Measuring unit

POWER PACK Pump

POWER PACK Pump

POWER PACK Pump

WORKING ELEMENTS / ACTUATING DEVICES Single / double acting cylinder

WORKING ELEMENTS / ACTUATING DEVICES Single / double acting cylinder

SINGLE ACTING CYLINDER Forcible surface waste port Pressurized chamber

DEpressurized chamber

supply port

Spring return

SINGLE ACTING CYLINDER Spring return Forcible surface waste port

DEpressurized chamber

supply port

Pressurized chamber

DOUBLE ACTING CYLINDER supply port

Forcible surface

DEpressurized chamber

waste port

DOUBLE ACTING CYLINDER waste port

DEpressurized chamber

Forcible surface

supply port

DOUBLE ROD CYLINDER waste port

Forcible surface

DEpressurized chamber

supply port

Cylinders

Linear actuators

Linear actuators

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

CONTROL ELEMENTS / ACTUATING DEVICES Directional valves

Actuation option

Actuation option

Actuation option

Valve nomenclature

One way flow control valve

One way flow control valve

One way flow control valve

Shutoff valve

Check valve / no return valve

Check valve / no return valve

Check valve / no return valve

3 way pressure regulation valve

3 way pressure regulation valve

3 way pressure regulation valve

DRAWING SYMBOLS

ISO 1219-2

SYMBOLS Pump Power line Control line

Branches

By pass

SYMBOLS Container Filter

SYMBOLS Fixed

1 way motor 2 way motor

Adjustable

SYMBOLS Single acting cylinder

SYMBOLS Double acting cylinder

SYMBOLS Valve name

Initial position

Symbol

SYMBOLS Valve name

Initial position

Symbol

SYMBOLS Valve name

Initial position

Symbol

SYMBOLS Pressure reliev valve/pressure limiter valve

2 way Pressure regulator P-A-T

3 way Pressure regulator P-T

SYMBOLS Fixed

Adjustable

SYMBOLS Check valve

Check valve spring loaded

SYMBOLS Manometer

Component designation

System circuit diagram