Centrifugal
What pump can be started against a closed discharge valve
Centrifugal
The functioning of equipment or process under control of mechanical or electronic devices that operate
Automatic
What is the most basic unit of power
Watts
Efficiency
90-95%
Most common type of motor
three-phase
Efficiency Range
75-85 %
Manual
Racking
What type of pump is capable of generating the highest head
Vertical Turbine Pumps
Three-phase motors voltage can range between
230-4000 V
Practical suction lift
15-25 ft
Pump turning on after a sensor has been triggered
Feed Backward
Amount of energy pump supplies to a fluid
Pump Head
Why would these not be as common as Centrifugal Pumps?
They are more expensive to purchase and more difficult to maintain
Three types of single-phase motors
Split-phase
Repulsion induction
Capacitor start motors
Why are these the most common types of pumps?
Pump automatically turning on no matter what
Feed Forward
What are most impellers made of?
Bronze
Main cause of overheating
overlubrication
What is ohms law
Volts= Amps X Ohms
What is a volute?
Pump Casing
Called Open loop control
Manual
How many times per a second should a mechanical seal leak?
0
A ______ pump is a vertical turbine pump with the motor mounted below the pump bowl assemblies
Submersible
What does single phasing of a motor mean
Loss of one power phase