28/05/2026
7 rules every hydraulic engineer lives by. 🔩
1 — Pascal's Law
Pressure in a confined fluid acts equally in all directions.
The foundation of everything.
2 — Flow = Speed
Actuator velocity is controlled by flow rate. Not by pressure.
3 — Pressure = Force
F = P × A. Don't mix this up with rule #2
4 — Power = Pressure × Flow
Size every component around this equation. No exceptions.
5 — Losses = Heat
Every inefficiency ends up as thermal energy.
Design your cooling from day one.
6 — Contamination kills systems
70–80% of hydraulic failures start with dirty fluid.
ISO 4406 is not optional.
7 — The pump creates flow.
The load creates pressure.
A pump does not produce pressure.
Resistance does.
Learn this once, apply it forever.
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At Hydronit we build compact hydraulic power units for OEM applications worldwide — engineered around these fundamentals from day one.
📩 [email protected] | www.hydronit.com