What is the Static pressure value in the Air Nozzle Catalog?

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Value What is static pressure in the catalog of air nozzles?

First of all, we will have to look at how to test the dispenser head in the lab as shown in the picture. From the picture it can be seen that the air flow rate is measured using Orifice plate Size 150 mm Static pressure (Static pressure) Measured with a manometer From the picture, they will measure the air pipe before entering. Plenum Out of range Throw It is measured using a type of anemometer. Hotwire

       Therefore, the value Static pressure in Catalog Therefore, it is a measurement of static pressure compared to the atmospheric pressure at the nozzle neck. Then the value Velocity pressure in Catalog What is it: value Velocity pressure This is caused by calculating with the equation

               VP = 0.602 V²               SI

               VP = (FPM/4005)²         I-P

Then we take the value Static pressure What to do: We usually use this value as a value. Pressure loss Let's pay for the head, right? [Which if we take Static pressure This goes minus the atmospheric pressure. It will be a value. Static pressure loss of the dispenser itself]

     But the value that we really need to use is Total pressure loss of the dispenser, therefore, the value Total pressure loss Therefore must bring Velocity pressure Come plus Static pressure With that

      Total pressure loss = [Static pressure + Velocity pressure]- 0

P.S. Another thing to note is that Pressure loss of the dispenser included Loss of Plenum Already gone Just like in the picture.