Pitot tube pumps for high pressure applications
Pitot tube pumps are a variation on a centrifugal pump; where rather than the impeller rotating it is the pump casing itself. This design is most commonly used within high pressure applications. Castle Pumps however recommend customers looking at a pitot tube pump to consider a piston pump instead due to their increased efficiency and consequential lower running costs than pitot tube pumps.
After data being released showing that two thirds of all pumps use up to 60% more energy than is necessary, there is a moving trend towards energy efficient pumps. More energy efficient pumps include multistage pumps, side channel pumps, and for high pressure applications piston pumps.
A case study from a leading pump manufacturer illustrated the savings involved in replacing a pitot tube pump with a piston pump. Firstly the piston pump provided the same performance as the previous pump but ran at 440rpm rather than 5,900rpm, which made an energy saving per year of £31,000.