21. If so, perhaps air was trapped inside triggering cavitation in the impeller . 22. In New Zealand, the senior station officer rank insignia is two impellers . 23. The jets create partial vacuums in liquid using an improved impeller blade design. 24. This is due to mechanical agitators, to the rotation of an impeller . 25. The last day, November 18, was the responses of the impellers . 26. Newer designs, such as the GDX impeller , have nearly eliminated this problem. 27. Impellers in agitated tanks are used to mix fluids or slurry in the tank.28. A centrifugal pump containing two or more impellers is called a multistage centrifugal pump. 29. In a pump, cavitation will first occur at the inlet of the impeller . 30. The new impeller design offers large improvements in hookup as well as reduced cavitation.
