The c v calculator will calculate either c v or flow using the supplied additional parameters of fluid inlet and outlet pressure and fluid temperature. C v w 500 dp sg 1 2 1c where.
C v flow calculator.
How to calculate cv value. Flow rate 48 000 sm3 hr. We have created a cv value and flow rate calculator so please utilize it. Pressure different 17 kgf cm 2.
1 it shows the extent of variability in relation to the mean of the population. Outlet pressure 15 kgf cm2 convert to absolute pressure 16 03 kgf cm2 a. Cv 25 4 example 2.
Make a shortcut to this calculator on your home screen. In other words the correct formula for cv sd mean x 100 but since you are calculating with excel as a percentage you use the formula cv sd mean x 100. It allows you to calculate the flow or c v flow coefficient to make the relationship visible between the pressure drop the difference in pressure between two points in a network transporting a liquid or gas and the flow rate.
The coefficient of variation cv is defined as the ratio of the standard deviation to the mean. Calculating the flow rate from the cv value requires complex calculations. The use of this flow coefficient c v calculator leads to a standard calculation to compare valve capacities.
Flow expressed by weight. The calculations can be performed for either liquid or gas flow. If you want to calculate the cv value and flow rate outside of the specified units please contact us.
Choosing a valve with a c v value sufficiently larger than the calculated c v will help provide expected flow performance. Inlet pressure 32 kgf cm2 convert to absolute pressure 33 03 kgf cm2 a. This is our valve c v calculator.
Cv 1 17 50 x sqrt 0 943 5. W water flow lb hr sg specific gravity 1 for water dp pressure drop psia. The coefficient of variation should be computed only for data measured on a ratio scale that is scales that have a meaningful zero and hence allow relative comparison of two measurements i e division of one measurement by the other.