Pipe CalcsSimple Pipe & Fitting CalculationsJoe Evans, Ph.D
12/26/12Pipe CalcsPipe TypeC RangeC AverageCommonly UsedEnter the
required data in the yellow cellsCast / Ductile Iron - New150 -
80130100Cast Iron 10 years old113 - 107Pipe Segment 1Cast Iron 20
years old100 - 89Flow Rate (GPM)50Cast Iron 30 years old75 - 90Pipe
ID (Inches)3Cast Iron 40 years old83 - 64Pipe Length (Feet)60Tar
Coated Cast Iron145 - 50130100Hazen & Williams C Value150Steel
- New150 - 80130100Corrugated Steel6060Calculated ResultsCement
Lined Iron / Steel160 - 130148140Velocity in Ft/sec2.3Asphalt Lined
Iron / Steel140 - 130Velocity Head in Ft0.1Copper, Brass, Lead,
Glass150 - 120140130Friction / 100 Feet of Pipe0.7Aluminum150 -
130Total Pipe Friction0.4Concrete152 - 85120100Fitting Equivalent
Length46.4Asbestos Cement140Total Fitting Friction0.3PVC160 -
150155150Total Friction Losses Segment 10.7PE140
Pipe Segment 2InstructionsFlow Rate (GPM)550This spreadsheet is
designed to calculate pipe and fitting friction for onePipe ID
(Inches)6to three pipe segments. The Hazen & Williams equation
and C values are Pipe Length (Feet)1000used for all friction
calculations. This provides flexibility when workingHazen &
Williams C Value100with both new and old piping systems.Calculated
ResultsEnter the required data in the four yellow cells for one,
two or three pipeVelocity in Ft/sec6.2segments. The calculated
results will appear below. Click on the FittingVelocity Head in
Ft0.6Calcs tab to enter the fitting data. Click on the box that
corresponds to aFriction / 100 Feet of Pipe4.1desired fitting and
its size. Enter the number of fittings used in that pipeTotal Pipe
Friction40.5pipe section. Enter the quantities of any other
fittings in the appropriate box.Fitting Equivalent Length24.3Note
that each pipe section has its own fitting selector. If a
particular fittingTotal Fitting Friction1.0is not shown, you may
enter it manually in one of the bottom lines. You willTotal
Friction Losses Segment 241.5have to look up the "equivalent pipe
length" and enter it in Column Q. TheTotal Friction Losses 1 &
242.2value should be the total equivalent length for the number of
fittings you entered. Fitting equivalent length and total fitting
friction will be displayedPipe Segment 3in the calculated results
for each pipe section.Flow Rate (GPM)Pipe ID (Inches)The example
included is for a submersible sewage pump. Pipe segment 1 runsPipe
Length (Feet)from the pump connection inside the wet well to a
valve box located outsideHazen & Williams C Valuethe wet well.
It includes 30' of 4" pipe, a 90 deg elbow, a check valve and a
gate valve. Segment 2 runs from the valve box to a gravity main. It
includesCalculated Results1000' of 6" pipe, two 45 deg elbows and
two gate valves. The total friction forVelocity in
Ft/secERROR:#DIV/0!Segment 1 is 13.7' and the total for Segment 2
is 41.5'. The combined losses forVelocity Head in
FtERROR:#DIV/0!both segments is 55.2'.Friction / 100 Feet of
PipeERROR:#DIV/0!Total Pipe FrictionERROR:#DIV/0!Fitting Equivalent
Length0.0Total Fitting FrictionERROR:#DIV/0!Total Friction Losses
Segment 3ERROR:#DIV/0!Total Friction Losses 1, 2 &
3ERROR:#DIV/0!
Fitting CalcsSimple Pipe & Fitting CalculationsJoe Evans,
Ph.D 12/16/12Fitting CalcsEnter the number of fittings in the
yellow cells that correspond to the pipe diameter. All others must
remain blank.Pipe Segment
1Fittings2"2.5"3"4"5"6"8"10"12"14"16"18"20"24"90 Standard
Elbow110.190 Long Radius Elbow0.045 Standard Elbow0.0Standard Tee
(Branch Flow)0.0Standard Tee (Thru Flow)0.0Gate Valve12.7Globe
Valve0.0Butterfly Valve0.0180 Return Bend0.0Swing Check
Valve133.6
46.4 Total Losses In Equivalent Feet of PipeCalcs std
9000010.10000000000long 90000000000000004500000000000000branch
tee00000000000000thru
tee00000000000000gate0002.680000000000globe00000000000000bfly00000000000000bend00000000000000swing
check00033.60000000000disc check0000000000000000000000000000Pipe
Segment 2Fittings2"2.5"3"4"5"6"8"10"12"14"16"18"20"24"90 Standard
Elbow0.090 Long Radius Elbow0.045 Standard Elbow216.2Standard Tee
(Branch Flow)0.0Standard Tee (Thru Flow)0.0Gate Valve28.1Globe
Valve0.0Butterfly Valve0.0180 Return Bend0.0Swing Check
Valve0.0
24.3 Total Losses In Equivalent Feet of PipeCalcs std
9000000000000000long 9000000000000000450000016.200000000branch
tee00000000000000thru
tee00000000000000gate000008.0800000000globe00000000000000bfly00000000000000bend00000000000000swing
check00000000000000disc check0000000000000000000000000000Pipe
Segment 3Fittings2"2.5"3"4"5"6"8"10"12"14"16"18"20"24"90 Standard
Elbow0.090 Long Radius Elbow0.045 Standard Elbow0.0Standard Tee
(Branch Flow)0.0Standard Tee (Thru Flow)0.0Gate Valve0.0Globe
Valve0.0Butterfly Valve0.0180 Return Bend0.0Swing Check
Valve0.0
0.0 Total Losses In Equivalent Feet of PipeCalcs std
9000000000000000long 90000000000000004500000000000000branch
tee00000000000000thru
tee00000000000000gate00000000000000globe00000000000000bfly00000000000000bend00000000000000swing
check00000000000000disc check0000000000000000000000000000
