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1. Static Head
Feet
2. Friction Head:
Calculate Friction Head
a. Discharge Pipe Length
Feet
b. Friction Factors of Fitting and Valves *See Table A
Fitting
Size
Equivalent
Length
Qty
Total
90's
Select
1 1/4
1 1/2
2
2 1/2
3
4
45's
Select
1 1/4
1 1/2
2
2 1/2
3
4
Tees
Select
1 1/4
1 1/2
2
2 1/2
3
4
Check Valve
Select
1 1/4
1 1/2
2
2 1/2
3
4
Gate Valve
Select
1 1/4
1 1/2
2
2 1/2
3
4
Union
Select
1 1/4
1 1/2
2
2 1/2
3
4
Total Equivalent Length: (Feet)
Pipe Length
Ft. + Equivalent Length
Ft./100=
100-foot Increments
c. Friction Head per 100'
Pipe at GPM (from Table B)
Feet
Friction Head [Feet]
3. Static Head
ft. + Friction Head
ft. = Total Dynamic Head
Enter in TDH box on Design Guide
