First of Two Parts
02/11/2016
Using the example system in Figure 1, this series will focus on the process elements found in piping systems. In this example, a process fluid is pumped from a storage tank, PX-TK-120, through an end suction pump, PX-PU-120, specified to pass 800 gallons per minute (gpm) with 202 feet of head. From the pump discharge, the 80 F process fluid travels to a heat exchanger, PX-HX-121, where the fluid is heated to 120 F. Level control PX-LCV-120 maintains the level in process vessel PX-PV-122 to 15 feet. The system boundaries are the tanks PX-TK-120 and PX-VP-122. The system contains only one circuit. Table 1 lists the physical properties of the process fluid.
![equation](/sites/default/files/0216/PSI-Equation1.jpg)
![Figure 1. Example system consisting of the items making up the system along with displayed operating data](/sites/default/files/0216/2-2016-Figure-1USE.jpg)
![Table 1. Physical properties of the process fluid used in this example](/sites/default/files/0216/PSI-Table1.jpg)
![Table 2. Comparing as observed conditions with cavitation to validated results](/sites/default/files/0216/PSI-Table2.jpg)