This model is a transparent and visual centrifugal pump teaching device developed specifically for vocational colleges, fluid mechanics laboratories in universities, and enterprise training centers. It can be quickly set up within 3 minutes to help students intuitively understand the structure, performance curves, and cavitation phenomena of centrifugal pumps. Closed stainless steel water tank for circulating water supply, with no splashing on the experimental site; The overall noise level is ≤ 58 dB (A). Used to draw performance curves of centrifugal pumps (H-Q, P-Q, η - Q); Compare the impact of different impeller forms on pump efficiency; Demonstrate the characteristics of parallel/series pipelines.