Hydraulic symbols for Marine Engineering

HYDRAULIC SYMBOLS
Basic Symbols Representing Hydraulic Components

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Unit 10: Hydraulic & Pneumatic Abu Dhabi Maritime Academy (ADMA) ADSMO/ MZI/V1.1/ Oct 2023
RESERVOIRS

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INTRODUCTION
The secret to being successful at reading and interpreting a schematic for a hydraulic system is really quite
simple. Very often, you will forget that the symbols on schematics are really a completely different
language of pictographs (picture used to represent the component). As you read this slide and begin to
study the symbols inside, go to the extra effort to try and figure out why the symbols are drawn as they are.
If you think about it, pumps will look like what pumps do, and all of the other symbols will come
close to looking like what they are intended to be.

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HYDRAULIC LINES, TUBES & HOSES

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HYDRAULIC LINES, TUBES & HOSES (CONTINUED)

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PUMPS

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HYDRAULIC MOTORS

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HYDRAULIC CYLINDERS

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HYDRAULIC CYLINDERS (CONTINUED)

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HOW VALVES ARE ACTUATED

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PRESSURE CONTROL SYMBOLS

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PRESSURE RELIEF VALVE

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DIRECTIONAL CONTROL VALVES

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FLOW CONTROL

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FLUID CONDITIONING MECHANISMS AND SYMBOLS

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ACCUMULATORS

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HYDRAULIC SYSTEM COMPONENTS

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TYPICAL HYDRAULIC CIRCUIT

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WINCHES

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CRANE

Hydraulic symbols for Marine Engineering

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