Conical vortex regulators calculation?

[WIN]

http://www.pjoes.com/pdf/19.4/749-756.pdf
i would like to learn about the calculations formulas involve in this mechanism.
Any notes or formulas with explanation on the calculations of pressure loss, volumentric velocity, velocity, ect. will be very much helpful.
In the pdf of the given link, the hydraulic loss coefficient was not clear to me.
at the end results, i want to learn how to determine a right conical vortex regulator size when i have a wanted pressure loss, velocity ect.
If there´s a price range for the conical vortex regulator according to size..it will be very much helpful too.

 

[Illmatic1]

The calculations formulas involve in this mechanism will vary depending on the specific type of conical vortex regulator you are using. Generally, the formulas used to calculate pressure loss, volumetric velocity, and velocity involve the following parameters:1. Diameter of the conical vortex regulator2. Length of the conical vortex regulator3. Flow rate through the conical vortex regulator4. Velocity at the inlet of the conical vortex regulator5. Velocity at the outlet of the conical vortex regulator6. Pressure drop across the conical vortex regulatorTo calculate the hydraulic loss coefficient, you will need to know the pressure drop across the conical vortex regulator and the volumetric flow rate through it. The hydraulic loss coefficient can then be calculated by dividing the pressure drop by the volumetric flow rate.Depending on the manufacturer, there may be a range of prices for the conical vortex regulator depending on its size. To determine the right size conical vortex regulator for your application, you will need to consider the flow rate, pressure drop, and velocity that you need. Once you have determined these values, you can use the above parameters to calculate the appropriate size conical vortex regulator for your application.