How to Convert CV to GPM

One Cv equals one gpm of water at a given temperature and pressure differential.
••• Jupiterimages/Photos.com/Getty Images

Flow coefficient (Cv for control valve) is the capability of a valve to flow a liquid. One Cv is equal to a flow of 1 gallon per minute (gpm) of water at 60 degrees Fahrenheit with a pressure differential of 1 pound per square inch. The larger the Cv, the greater the flow in gpm. If you are dealing with a pressure differential other than 1 pound per square inch (psi), then gpm can be calculated in a few steps.

    Determine the pressure differential of the valve by subtracting the downstream pressure from the upstream pressure.

    Take the square root of the pressure differential.

    Multiply the square root of the pressure differential by the valve coefficient to calculate the flow in gallons per minute.

Related Articles

How to Calculate Pressure Potential
Normal Running Pressures for R134A
How to Calculate GPM From Differential Pressure
How to Convert mm Hg to in Hg
How to Figure GPM Water Flow on an Existing Chiller
Density Vs. Viscosity
How to Calculate Pressure From Flow Rate
How to Calculate Density From Viscosity
How is Wattage Calculated?
How to Calculate Water Flow Through a Pipe Based on...
Test Your Knowledge on Middle School Science
How to Calculate GPM From Differential Pressure
How to Convert KPa to Liters Per Minute
How to Calculate Static Head
How to Calculate Pressure Potential
How to Calculate the Air Flow & the Static Pressure...
How to Find Partial Pressures
How to Calculate Interstitial Velocity
How to Convert PSI to Horsepower

Dont Go!

We Have More Great Sciencing Articles!