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NPSHr (H2O vs Flowing Fluid) and Calculations
Pardal, When translating feet to pressure the density of the fluid is indeed important (P=rho*g*h). However a centrifugal pump is a contant velocity device that will always deliver the same head regardless of the fluid. The power required to reach the same head will differ with the fluid...- zman22
- Post #6
- Forum: Pump engineering
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NPSHr (H2O vs Flowing Fluid) and Calculations
Feet is indeed feet regardless of fluid. However the NPSHr for hydrocarbons can be up to 50% lower than water. For your NPSHa calculation you also need to take into account elevation and pressure loss in the suction line.- zman22
- Post #3
- Forum: Pump engineering
