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Hydraulic Diagrams Are Essential To Efficiency ben lee

Hydraulic Diagrams

There’s no doubt that having an accurate diagram of your hydraulic system setup can save many an engineer considerable time and trouble. Here are the main diagrams that you might want drawn up of your system to refer to when needed:


Block Diagrams using blocks joined by lines, this diagram illustrates how the components are installed in addition to their connections and interactions.

Cutaway Diagrams illustrate what’s inside of hydraulic components including flow paths. Colours, patterns and shades are used to represent flow paths and pressure.

Pictorial Diagrams present the arrangement of the components and pipes of the hydraulic circuit. Usually this diagram shows the shapes and sizes scaled to help with component identification and recognition.

Graphical Diagrams simple symbols are used to represent each hydraulic component, their connections and controls.

Hydraulic technicians who have experience at interpreting circuit diagrams find these a great resource for understanding what could be at the core of any problem for troubleshooting purposes. 


Without the schematic diagram, the hydraulic engineer must work hard to comprehend the design of the circuit and use isolation to identify potential origins of issues. At best, this can take a lot of time and energy that needn’t be spent.


In worst case scenarios, a valve manifold may need to be dismantled and removed in order to understand what its purpose is.  Without a full understanding of any component in a hydraulic system it’s difficult to know exactly what is causing an issue. The purpose of the schematic diagram is to remove the necessity to reverse engineer the hydraulic circuit.


Do you use hydraulic circuit diagrams to support maintenance and repair in your business? If so, which types do you use to enable your engineers to gain a fast and complete understanding of your systems? 

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