02/03/2026
THE "7 RULES OF HYDRAULICS" are a set of principles that govern hydraulic systems, focusing on how fluid and pressure work together to create force and motion. These rules include:
1. FLOW MAKES IT GO- For movement to occur in a hydraulic system, fluid must be flowing.
2. PRESSURE PROVIDES THE PUSHING FORCE- Pressure is what generates the force to perform work within the system.
3. OIL TAKES THE PATH OF LEAST RESISTANCE- Fluid will always move through the path that offers the least resistance.
4. PRESSURE IS A MEASURE OF FLOW RESISTANCE- Higher pressure indicates higher resistance to flow.
5. FLOW REQUIRES A PRESSURE DIFFERENCE- Fluid will only flow if there is a difference in pressure between two points.
6. GREATER PRESSURE DIFFERENCE MEANS GREATER FLOW POTENTIAL- A larger difference in pressure between two points will result in a greater potenial flow rate.
7. HEAT IS GENERATED WHEN OIL FLOWS WITHOUT DOING WORK- When hydraulic fluid moves through the system but is not being used to move a load (like through an open valve), the energy is converted into heat.
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