Engineering editorial · Updated 2026-09-18
The short answer
Maximum pressure and maximum flow normally describe different operating points; do not treat them as simultaneous output.
What to check
Use the pressure-flow curve and specify measurement conditions. Compressibility and leaks can change chamber filling behavior.
Make the comparison meaningful
Record supply voltage, medium temperature, circuit arrangement and the measurement location. Compare candidate pumps under the same conditions. Maximum flow, maximum pressure and a single noise value do not describe a complete working point.
Before you choose a model
Ask for the current specification, performance curve and approved operating limits for the exact variant. Agree on the test method and acceptance criteria, then validate a sample in your equipment. This guide describes selection principles, not verified performance for a Shan Neng model.