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Centrifugal Pump Sizing and NPSH Calculator

Size centrifugal pumps by calculating shaft power and net positive suction head (NPSH). Use this when selecting a pump for water supply, chemical transfer, or HVAC systems.

Flow Rate (m³/h)

Total Dynamic Head (m)

Fluid Density (kg/m³)

Pump Efficiency (%)

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Chemical Engineering

Vapor Pressure Calculator (Antoine Equation)

Calculate the vapor pressure of common chemicals at a given temperature using the Antoine equation and built-in constants for water, benzene, toluene, and ethanol. Essential for distillation design, safety assessments, and environmental modeling.

Temperature (°C)

Compound

Custom Antoine A

Custom Antoine B

Custom Antoine C

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Key differences

	Centrifugal Pump Sizing and NPSH Calculator	Vapor Pressure Calculator (Antoine Equation)
Category	Chemical Engineering	Chemical Engineering
Inputs required	4	5
Result	Required Power (kW)	Vapor Pressure (mmHg)
What it does	Size centrifugal pumps by calculating shaft power and net positive suction head (NPSH). Use this when selecting a pump for water supply, chemical transfer, or HVAC systems.	Calculate the vapor pressure of common chemicals at a given temperature using the Antoine equation and built-in constants for water, benzene, toluene, and ethanol. Essential for distillation design, safety assessments, and environmental modeling.