Sherif,
If you are to calculate the total head loss of the water line from the suction tank to the deaerator, you should count on vertical and horizontal piping itself and also every part of piping components, such as inlet and outlet nozzles for a equipment connected, elbows, tees, reducers, valves, filter or strainer and tip nozzles if any.
Vertical elevation, the only static head loss, shall be added to total head loss. Friction thru filter or strainer and nozzle would be major portion of dynamic head loss and the rest thru all piping components . The pressure head due to the vacuum in the deaerator might be deducted from total head loss but some head allowance in case of vacuum failure may also be essential.
Bear Bobby's comment in mind, please.
Stefano Kim
Edited by sgkim, 07 October 2016 - 06:20 AM.