Video | Hydraulic symbols for pumps and motors.

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Understanding Hydraulic Symbols for Pumps and Motors: Deciphering Hydraulic Schematics

Welcome to our comprehensive guide on hydraulic symbols for pumps and motors! In this video, we'll demystify the process of drawing hydraulic symbols for these essential components, helping you decipher hydraulic schematics with ease. Let's delve into the world of hydraulic symbols!

The Importance of Hydraulic Symbols

Hydraulic symbols are graphical representations used in hydraulic schematics to convey information about hydraulic components, their functions, and their interconnections. Understanding hydraulic symbols is crucial for interpreting schematics accurately and troubleshooting hydraulic systems effectively.

Common Hydraulic Symbols for Pumps and Motors

Here are some common hydraulic symbols used to represent pumps and motors in hydraulic schematics:

  • Pump: The symbol for a hydraulic pump typically consists of an arrow indicating the direction of fluid flow, accompanied by additional symbols to denote specific pump types such as gear pumps, vane pumps, or piston pumps.
  • Motor: Hydraulic motors are represented by symbols that resemble pumps but with arrows pointing in the opposite direction, indicating the conversion of hydraulic energy into mechanical energy.

Drawing Hydraulic Symbols

When drawing hydraulic symbols for pumps and motors, it's essential to adhere to standard conventions to ensure clarity and consistency. Here are some tips for drawing hydraulic symbols effectively:

  • Use Standard Shapes: Follow established conventions for drawing pump and motor symbols to maintain consistency across schematics.
  • Indicate Direction of Flow: Arrows are used to indicate the direction of fluid flow through pumps and motors, helping to visualize system operation.
  • Label Components: Clearly label pump and motor symbols with text to identify the type and model of each component.
  • Include Additional Information: Use supplementary symbols or annotations to convey additional information about pump and motor characteristics, such as flow rate, pressure rating, or displacement.


Mastering hydraulic symbols for pumps and motors is essential for anyone working with hydraulic systems. By understanding how to draw and interpret these symbols accurately, engineers and technicians can effectively design, troubleshoot, and maintain hydraulic systems with confidence. Stay tuned for more tutorials on hydraulic system design and maintenance!

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