Understanding Pump Curves: A Quick Guide!

Understanding pump curves is crucial to successful HVAC chilled water system design. The curve typically extends from "shut off head" to "run out," where operating isn't recommended due to high speeds and pressures leading to instability. Like a fan, when you reach the curve's end, expect the unexpected!
The intersection of the system and pump curves determines your operating point, or "duty point," essential for designing efficient systems. Additionally, the curve can display various impeller sizes (known as a family curve), helping you choose the correct specifications for your needs.
Key takeaway: The system curve is a mathematical representation that combines with the pump curve to help engineers pinpoint the best operational settings for efficiency and safety. Always aim for the sweet spot where the system and pump curves intersect!