pipe presdrop

7/30/2019 Pipe PresDrop

1/5

PROJECT : PVC Pipeline

SYSTEM :

LOCATION :CLIENT :

Fittings 90o

SR Elbow 45o

SR Elbow Tee Tee Gate Valve Ball Valve Check Valve Butterfly Strai

Nodes r/d = 1.5 r/d = 1.5 Run Branch = 0 = 0 Swing Flgd Valve

K= T x 30 K= T x 16 K= T x 20 K= T x 60 K= T x 8 K= T x 3 K= T x 50 K= T x K= T x

Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (Nos.) Qty (N

1 2

2 3

3 4

4 5

5 6

6 7

7 8

8 9

9 10

10 11

11 12

12 13

13 14

14 15

15 16

16 17

17 18

18 19

19 20

20 21

21 22

22 23

23 24

24 25

25 26

NOTES:

1

1

4

4

From To

121407681.xlsx.ms_office 1 of 5


2/5

PROJECT : PVC Pipeline

SYSTEM :

LOCATION :

CLIENT :

Pipe Flow E.W.R. Mean Velocity Re Nature Friction

Nom. Internal Length Rate e Velocity Pressure Number of Factor F

Inches mm m L/s gpm mm m/s Pa [-] Flow [-]

1 2 8 200.0 1200.0 16.70 264.7 0.090 0.53 141.0 1.05E+05 Turbulent 0.0201

2 3 6 150.0 1000.0 16.70 264.7 0.090 0.95 445.7 1.40E+05 Turbulent 0.0201

3 4 0.00 0.0 0.00E+00 - 0.0000

4 5 0.00 0.0 0.00E+00 - 0.0000

5 6 0.00 0.0 0.00E+00 - 0.0000

6 7 0.00 0.0 0.00E+00 - 0.0000

7 8 0.00 0.0 0.00E+00 - 0.0000

8 9 0.00 0.0 0.00E+00 - 0.0000

9 10 0.00 0.0 0.00E+00 - 0.0000

10 11 0.00 0.0 0.00E+00 - 0.0000

11 12 0.00 0.0 0.00E+00 - 0.0000

12 13 0.00 0.0 0.00E+00 - 0.0000

13 14 0.00 0.0 0.00E+00 - 0.0000

14 15 0.00 0.0 0.00E+00 - 0.0000

15 16 0.00 0.0 0.00E+00 - 0.0000

16 17 0.00 0.0 0.00E+00 - 0.0000

17 18 0.00 0.0 0.00E+00 - 0.0000

18 19 0.00 0.0 0.00E+00 - 0.0000

19 20 0.00 0.0 0.00E+00 - 0.0000

20 21 0.00 0.0 0.00E+00 - 0.0000

21 22 0.00 0.0 0.00E+00 - 0.0000

22 23 0.00 0.0 0.00E+00 - 0.0000

23 24 0.00 0.0 0.00E+00 - 0.0000

24 25 0.00 0.0 0.00E+00 - 0.0000

25 26 0.00 0.0 0.00E+00 - 0.0000

I. If the case is Clean Water II. If the case is other liquid, then enter the data h

(0 < t

o

C < 100) Insert Water Temperature (Keep the cells clean, if the case is water!)kg/m

3Water Density calculated kg/m

3Insert Liquid Density

m2/s Water Kinematic Viscosity calculated m

2/s Insert Liquid Kinematic Viscosit

NOTES:

e - Effective Pipe Wall Roughness (E.W.R.)

T - Friction factor in fully-developed Turbulent Flow

Pipe Dia.

1.02E-06

Nodes

From To

20.0 deg. C998.16

121407681 xlsx ms office 2 of 5


3/5

TOOLS & DATA

Velocity in Pipe Required Pipe Diameter

Dia. 2,000.0 mm Velocity 3.00 m/s

Flow 31,248.0 m3

/h Flow 31,248.0 m3

/h

Area 3.142 m2 Area 2.893 m

2

Velocity 2.76 m/s Dia. 1,919.4 mm

Flow for given Dia & Velocity

Dia. 575.0 mm

Velocity 2.57 m/s

Area 0.260 m2

Flow 2,402.5 m

3

/h

H/Williams Manning

TYPICAL VALUES C n[-] [-] mm in.

New Pipe or lining

Smooth glass or plastic 150 0.009 0.019 0.00075

Centrifugally spun cement-mortar lining 145 0.009 0.038 0.0015

Cement-mortar lining troweled in place 140 0.009 0.076 0.003

Commercial steel or wraught iron 140 0.009 0.076 0.003

Galvanized iron 135 0.010 0.13 0.005

Ductile or cast iron, uncoated 130 0.010 0.19 0.0075

Asbestos-cement, coated 145 0.009 0.038 0.0015Asbestos-cement, uncoated 140 0.009 0.076 0.003

Centrigugally cast concrete pressure pipe 135 0.010 0.13 0.005

Ten-State Standards

Cement mortar or plastic lining 120 0.011 0.41 0.016

Unlined steel or ductile iron 100 0.011 1.5 0.060

Smooth glass or plastic 135 0.010 0.13 0.005

Centrifugally spun cement-mortar lining 130 0.010 0.19 0.0075

Cement-mortar troweled in place 125 0.010 0.28 0.011

Asbestos-cement, coated 130 0.010 0.19 0.0075

Asbestos-cement, uncoated 125 0.010 0.28 0.011

Ductile iron or carbon steel, uncoated 100 0.013 1.5 0.060

Centrigugally cast concrete pressure pipe 130 0.010 0.19 0.0075

Wood stave 110 0.012 0.89 0.035

Riveted steel 80 0.016 5.6 0.22

Concrete, formed 80 0.016 5.6 0.22

Clay (not pressurized) 100 0.013 1.5 0.060

Wrought iron 100 0.013 1.5 0.060

Galvanized iron 90 0.014 0.30 0.012

Moody

Old pipeor lining [in moderate service (20 yr or more),

nonagressive water]


4/5

HAZEN-WILLIAMS FORMULA

For full pipes! For full or partly full pipes!

where, where,

V = Velocity of water in m/s V = Velocity of water in m/s

C = C =

D = Pipe Internal Dia. in m Rh =

S = Hydraulic Slope or Headloss in m/m S = Hydraulic Slope or Headloss in m/

C = 100 [-] C = 100 [-]

D = 750 mm D = 750 mmS = 0.001344 m/m Rh = 187.5 mm Full pipe!

S = 0.001344 m/m

V = 0.83 m/s V = 0.83 m/s

Q = 0.368 m3/s Q = 0.368 m

3/s

Hydraulic Radius (for full pipe is

1/4 of the internal pipe dia.) in m

V = 0.355 x C x D0.63

x S0.54

V = 0.849 x C x Rh0.63

x S0.54

Factor depending on the

roughness of the interior surface

(dimensionless)

Factor depending on the

roughness of the interior surface

(dimensionless)


5/5

MANNING FORMULA

Applied for partly full conduits! Hydraulic Radius Rh

where,Df

: Wet Area/Wet Perimeterv = Velocity of water in m/s Full Pipe: 1/4 of Int. Pipe Dia.

n =

Hydraulic Radius (Rh) Calculation:

Rh = Wet Area: 0.78539 m2

S = Hydraulic Slope or Headloss in m/m Wet Perimeter: 3.14159 m

Rh = 0.249998 m

n = 0.009 [-]

Rh = 0.25 m

S = 0.4142 m/m

v = 28.25 m/s

Q = 22.19 m3/s

79,868.35 m3/h

22,185.65 l/s

351,649.71 gpm

Typical values of n

Smooth metal 0.010

Smoth concrete 0.012

Rough concrete 0.017

Cut earthen channel 0.025 to 0.035

Manning

TYPICAL VALUES n[-]

New Pipe or lining

Smooth glass or plastic 0.009

Centrifugally spun cement-mortar lining 0.009

Cement-mortar lining troweled in place 0.009

Commercial steel or wraught iron 0.009

Galvanized iron 0.010

Ductile or cast iron, uncoated 0.010

Asbestos-cement, coated 0.009

Asbestos-cement, uncoated 0.009

Centrigugally cast concrete pressure pipe 0.010

Ten-State Standards

Cement mortar or plastic lining 0.011

Unlined steel or ductile iron 0.011

Smooth glass or plastic 0.010

Centrifugally spun cement-mortar lining 0.010

Cement-mortar troweled in place 0.010

Asbestos-cement, coated 0.010

Asbestos-cement, uncoated 0.010

Ductile iron or carbon steel, uncoated 0.013

Centrigugally cast concrete pressure pipe 0.010

Wood stave 0.012

Riveted steel 0.016

Concrete, formed 0.016

Clay (not pressurized) 0.013

Wrought iron 0.013

Galvanized iron 0.014

Old pipeor lining [in moderate service (20 yr or more),

nonagressive water]

Hydraulic Radius in m

v = 1/n x Rh0.67

x S0.5

Manning Roughness Coeficient

(dimensionless)

pipe presdrop

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