# K factor calculator

The application presented here can be used to calculate the overall K factor based on the fittings in a piping segment. This K factor should be used along with the pressure drop calculator to account for total frictional losses in a piping system.

Enter the piping details:

 Pipe Nominal diameter 0.5"0.75"1"1.25"1.5"2"2.5"3"4"5"6"8"10"12"14"16"18"20"22"24"26"28"30"32"34"36"38"40"42"44"46"48" & above Number of 900 elbows Number of 450 elbows Reducer upstream diameter (Reducer at the beginning of the line) 1"1.5" 2"3"4"5"6"8"10"12"14"16"18"20"22"24"26"28"30"32"34"36"38"40"42"44"46"48" & above Expander downstream diameter (Expander at the end of the line) 1"1.5"2"3"4"5"6"8"10"12"14"16"18"20"22"24"26"28"30"32"34"36"38"40"42"44"46"48" & above Number of tees with 'flow through run' Number of tees with 'flow through branch' Number of gate valves Number of globe valves Number of ball valves Number of butterfly valves Number of check valves Number of 3-way valves Overall K factor for the fittings =

This K factor when multiplied by 'ρv2/2' of a stream, gives the effective pressure drop across all the fittings. This pressure drop when added to straight line pressure drop obtained from 'Pressure drop calculator' along with the elevation change gives total pressure drop across a line.