Here typical piping connection to single cell cooling tower For the tower piping circuit, the pump must overcome the piping flow friction loss; piping, condenser, cooling tower losses, and valves. It must also provide the energy head necessary to raise water from a low to a higher static head level. Most discussions concerning tower and/or open piping circuits would simply define the required pump static energy head as Ho (in Figure 3); the “open” height of the piping circuit. This is, however, an ever-simplified assumption which may or may not be true depending on whether or not a “siphon draw” is established in the down comer return piping DE. The nature of the down comer siphon draw and its limitations should be evaluated. including air discharge , sanitary sewer drain , sump drain , sump plug air intake , continuous overflow pipe to drain , to condenser water pump , 25mm pipe union to permit removal for inspection and test , air intake for more details download this file
