NPSH: A Step‑by‑Step Calculation Guide
Understanding Net Positive Suction Head (NPSH) is essential for reliable pump operation and avoiding cavitation — one of the most common causes of pump damage and performance loss.
This infographic breaks down NPSH into clear visuals and simple steps so anyone can calculate it confidently:
🔹 NPSHa vs NPSHr – Know the difference between what your system provides and what your pump requires.
🔹 The Golden Rule: NPSHa ≥ NPSHr → Safe, efficient operation.
🔹 Formula: NPSHa = Ha ± Hs − Hf − Hvp
💡 Why it matters: Accurate NPSH calculation prevents cavitation, extends pump life, and ensures smooth plant operation. Whether you’re in utilities, process, or reliability engineering
