The control valve opening is then checked at normal flow to make sure that ... and the control valve pressure drop variation can be well represented on a graph similar to the generic one shown ...

Figure 2. This graph shows a typical pressure curve of a cavitating liquid passing through a control valve. If P2 is reduced still further, the expanding vapor will create an increasing pressure drop ...

Download the PDF brochure for more information about Alicat Scientific's Whisper series flow meters and controllers. Pressure drop can be defined as the quantity of line pressure, which is lost ...

Whereas one group of devices relies on the principle of flow measurement, the other group is based on pressure drop measurements. The following report compares the accuracy of the two test methods, ...

Version 4 of the Bell & Gossett System Syzer® program for PC computers is available. It is an update of a tool for calculating flow rates and pressure drops in HVAC piping systems. The program ...