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Basic
Centrifugal Pumps
Brake horsepower
Pump Efficiency
Specific speed (US)
Suction specific speed (US)
Electrical Motors & Systems
HP - AC Single Phase
HP - AC Three Phase
HP - AC Two Phase
HP - Direct Current
KW - AC Single Phase
KW - AC Three Phase
KW - AC Two Phase
KW - Direct Current
Financial
Annuity
Future Value
Payback Time
Mechanical Seals and Gaskets
Throat Bushing Sizing
Miscellaneous
Belt-Drive Pulleys
MTBR
Reynolds Number
PD Pumps
Power pump hp
Single acting displacement
Piping Design
Piping Fitting and Valve Losses
Pressure, Head, and Flow
Converting fluid velocity to velocity head
Converting pressure to head
Converting velocity to flow
Pump Design
Peripheral velocity of an impeller
Shaft shear stress
Torque with hp and speed
Vibration
Acceleration, displacement
Velocity (in/sec) pk to g's
Velocity (in/sec) pk to mils pk
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Pump Design
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Torque with hp and speed
Torque with horsepower and speed known
Short
Long
Calculator
Input 2 of 3 variables to solve for the unknown.
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Symbol
Variable
Input
Units
T
Torque
foot pounds
inch pounds
newton centimeters
newton millimeters
newton meters
HP
Horsepower
horsepower
watts
kilowatts
foot-pounds/minute
foot-pounds/second
btu/second
btu/minute
btu/hour
N
Rotational Speed
revolutions/minute
revolutions/seconds
revolutions/hour
radians/second
radians/minute
radians/hour
hertz
cycles/second
cycles/minute
cycles/hours