Pumps Flashcards
1
Q
List factors that affect output pressure and flow of centrifugal pump
A
Pump design
Rotation rate
Inlet pressure
Liquid viscosity
2
Q
What is cavitation?
A
Vaporization of liquid on the impeller
3
Q
Why is fluid vapor pressure important to centrifugal pump performance?
A
As pressure decreases, vapor pressure decreases, increasing your chance to vaporize your liquid
4
Q
Why does beer require special care in a pumping system?
A
Net suction pressure should be at or above co2 saturation pressure to avoid cavitation
5
Q
What is net positive suction?
A
Point of lowest pressure where vaporization begins
6
Q
What is suction head?
A
Pressure at pump inlet created by column of liquid supplying the pump
