Procedure and Scope

This Pressure Drop Calculator is designed for Newtonian Liquids and is for general use.The methods used are Hooper's 2K and Darby's 3K method as they give the better curve fits for pressure lossvs k factor data for various fittings. The advantage with both the methods is that K values are compensatedfor change in Reynolds Number and pipe internal diameter as well, unlike other famous methods.This compensation brings more accuracy to the pressure drop calculation at any flowrate.

User can input the Pipe ID from the standard drop down list or use their own dataPlease check that proper option is chosen to input the pipe diameter

Though the spreadsheet takes input parameters in metric system, the corresponding calculated values in IP system give a clue to the user if they are not comfortable with metric system

The friction factor is calculated using Poiseuille's equation for laminar flow and Colebrook's equationfor transitional and turbulent flows. However, Katmar's (fellow member at eng-tips.com) version of Churchill be used as one single equation for all kinds of flow. I must appreciate Katmar (Harvey) for this.

I personally opine that, as both Hooper's and Darby's methods give better pressure loss values when compared with conventional methods, collective data can be used for final pressure drop calculation, in the absence of suitable correlations. For ex. as there are no correlations of K, incase of Darby, for miters other than 2 weldsand also for reducers, expanders and orifices, Hooper's values can be included to the final valueof Darby's. I didn't include this in my calculation, at this juncture, and it is users discretionto use any other suitable method or logic.

This calculator is comfortable with single pipe size and I suggest, if there is a variation of pipe size, to calculate the sections independantly. In a nut shell, my suggestion is not to calculate reducer and expanderpressure drops in a single step.

The friction factor worksheet calculates Darcy's friction factor by Colebrook's equation. However,When dealing with Colebrook's equation, 5 steps of iteration are generally sufficient.I also included other explicit equations for the calculation of friction factor, based on the article

Magazine.

Good Luck,

Ravi Sankar

Estimate friction factor accurately by TK Serghides appeared in March' 84 volume of Chemical Engineering

Pressure Drop CalculatorStandard Use Cells C4 and D4

Nominal Size and Schedule 2" 40Pipe ID (For pipes not in above list) 0.0394 inches

16 70.45 gpm

1000 62.431 cP

0.005 mm 0.0002 inches

Velocity (V) 2.05 m/s 6.73 feet/secInner Diameter (ID) 0.0525 m 2.067 inches

107770Friction Factor (f) 0.021568Procedure 2-K 3-KTotal Pressure Drop (m) 41.38 41.28Total Pressure Drop (Pa) 405858.72 404541.29Total Pressure Drop (psi) 58.77 58.66

Shear Force 675

Input the values in appropriate cells of Column C below

Component Qty Unit Hooper 2-K Darby 3-KElevation 12.5 m 12.500 12.500Pipe Length 300 m 26.467 26.467

Threaded, r/D = 1 0 No 0.000 0.000Threaded, Long Radius, r/D = 1.5 0 No 0.000 0.000Flanged, Welded, Bend, r/D = 1 10 No 0.813 0.840Flanged, Welded, Bend, r/D = 2 0 No 0.000Flanged, Welded, Bend, r/D = 4 0 No 0.000Flanged, Welded, Bend, r/D = 6 0 No 0.000Mitered, 1 Weld, 90 Degree 0 No 0.000 0.000Mitered, 2 Welds, 45 Degree 0 No 0.000 0.000Mitered, 3 Welds, 30 Degree 0 No 0.000 0.000Mitered, 4 Welds, 22.5 Degree 0 No 0.000Mitered, 5 Welds, 18 Degree 0 No 0.000

Standard, r/D = 1 0 No 0.000 0.000Long Radius, r/D = 1.5 0 No 0.000 0.000Mitered, 1 Weld, 45 Degree 0 No 0.000 0.000Mitered, 2 Welds, 22.5 Degree 0 No 0.000 0.000

Threaded, r/D = 1 0 No 0.000 0.000Flanged/ Welded, r/D = 1 0 No 0.000 0.000Long Radius, r/D = 1.5 0 No 0.000 0.000TeesAs ElbowStandard, Threaded, r/D = 1 0 No 0.000 0.000Long Radius, threaded, r/D = 1.5 0 No 0.000 0.000Standard, Flanged/Welded, r/D = 1 4 No 1.026 1.021Stub-in Branch 0 No 0.000 0.000Run Through Threaded, r/D = 1 0 No 0.000 0.000Run Through Flanged/Welded, r/D = 1 0 No 0.000 0.000Run Through Stub in Branch 0 No 0.000 0.000Valves

0 No 0.000 0.0000 No 0.0000 No 0.000 0.000

Plug Valve, Branch Flow 0 No 0.000Plug Valve, Straight Through 0 No 0.000 0.000

Select the Option ®

Flow Rate (Input) m3/hr

Density(r) (Input) kg/m3 lb/ft3

Dynamic Viscosity (µ) (Input)Absolute Roughness (e) (Input)

Reynolds Number (NRe)

N/m2

90 0 Elbow

45 0 Elbow

180 0 Elbow

Angle Valve - 45 Degree, b = 1Angle Valve - 90 Degree, b = 1Globe Valve, b = 1

Plug Valve, 3-way, Flow Through 0 No 0.0000 No 0.000 0.0002 No 0.098 0.032

Butterfly Valve 0 No 0.000Diaphragm Valve, Dam Type 0 No 0.000 0.000

1 No 0.481 0.420

0 No 0.000 0.000Tilting Disk Check Valve 0 No 0.000ReducersSecond ID 1.3779 InchesAngle 45 DegreesSquare Reducer 0 No 0.000Tapered Reducer 0 No 0.000Round Reducer 0 No 0.000ExpanderSecond ID 1 InchesAngle 45 DegreesSquare Expander 0 No 0.000Tapered Expander 0 No 0.000Round Expander 0 No 0.000OrificeDiameter (ID of Orifice) 1 InchesLength (Thickness of the Thick Orifice) 1 InchesThin 0 No 0.000Thick 0 No 0.000

Gate Valve, b = 1Ball Valve, b = 1

Swing Check Valve, Vmin = 35r-1/2

Lift Check Valve, Vmin = 40r-1/2

10 18 15.5413.83 0.27 14.115.56 0.31 15.87

15.49 0.31 15.8

Explicit Equations of Friction Factor and Colebrook's Equation

1 Churchill's Equation (for any Re and ε/D)

f =

A =

B = e 0.00004572

R 107769.805552214 ε/D 0.00087083

A 3.38E+20B 4.68E-08f 0.02172335

2 Serghides' Equation (Re>2100 and for any ε/D)

f =

A = -2.0 log((ε/D/3.7) + (12/Re))

B = -2.0 log ((ε/D/3.7)+(2.51A/Re))

C = -2.0 log ((ε/D/3.7) + (2.51B/Re))

A 6.92007435771309B 6.80344810788985C 6.80941850251586f 0.02156836

3

f =

f 0.02193775

4 Wood's Equation (Re ≥ 4000 and for any ε/D)

f =

a =

a -0.630181872559473f 0.02239054

5

8((8/Re)12 + 1/(A+B)1.5)1/12

(-2.457ln((7/Re)0.9+0.27ε/D))16

(37530/Re)16

[A - ((B-A)2/(C-2B+A))]-2

Moody's Equation (4000 ≤ Re ≤ 10 7 and ε/D ≤ 0.01)

5.5 x 10-3 (1+ (2 x 104ε/D + 106/Re)1/3)

0.094(ε/D)0.225 + 0.53(ε/D) + 88(ε/D)0.44Rea

-1.62(ε/D)0.134

Jain's Equation (5000 < Re < 10 7 and 0.00004 < ε/D < 0.05)

1/f1/2 = 1.14 - 2.0log(e/D + (21.25/Re0.9))

or f =

f 0.02170047

6 Chen's Equation (for any Re and ε/D)

-2.0 log((ε/D/3.7065) - (5.0452A/Re))

or f =

A =

A -3.49623100974891f 0.02163342

7

-2.0A

or f =A = log((ε/D/3.7) - (5.02/Re)* log ((ε/D/3.7) + (13/Re)))

A -3.40230963137999f 0.02159695

8

-2.0log ((e/d/3.7) - (5.02A/Re))

or f =

f 0.02156689

9 Colebrook's Equation

or f =f = 0.02

f 0.02165317 0.02156402 0.02156858 0.02156835

Note: Friction factor from Colebrook's equation generally converges after 4 steps of iteration.If it doesn't converge, copy paste the previous cell to next cell and input the correct cell values forReynolds Number(C11) and Effective Roughness(F11)

10 Katmar - Using Churchill, but with Colebrook substituted for "A"

A 3.582E+20B 4.678E-08f 0.02156836

1/(1.14 - 2.0log(e/D + (21.25/Re0.9)))2

1/f1/2 =

1/(-2.0 log((ε/D/3.7065) - (5.0452A/Re)))2

log((ε/D)1.1098/2.8257 + (5.8506/Re0.8981))

Zigrang and Sylvester's Equation (4000 < Re < 10 8 and 0.00004 < ε/D < 0.05) - (1)

1/f1/2 =

1/4A2

Zigrang and Sylvester's Equation (4000 < Re < 10 8 and 0.00004 < ε/D < 0.05) - (2)

1/f1/2 =

1/(-2.0log ((e/d/3.7) - (5.02A/Re)))2

1/f1/2 = -2.0 log((e/D/3.7) + (2.51/Ref1/2))

1/(-2.0 log((e/D/3.7) + (2.51/Ref1/2)))2

0.02156836

If it doesn't converge, copy paste the previous cell to next cell and input the correct cell values for

Comparision of Friction Factors from various Explicit Equations w.r.to Colebrook's Equation

Re e/D Colebrook Churchill Serghide Moody Wood Jain Chen Zigrang Katmar107769.8 0.000871 0.02156836 0.02172335 0.02156836 0.02193775 0.02239054 0.02170047 0.02163342 0.02156689 0.02156836

Error (%) 0.719 0.000 1.713 3.812 0.612 0.302 -0.007 0.000

Note: Zigrang's equation considered in this comparison is the second equation

Hooper's 2-K Friction Factor Method

Fitting Type Geometry K

Elbow - 90 Degree Standard, Screwed r/D = 1 800 0.40 0.601Standard, Flanged/Welded r/D = 1 800 0.25 0.378Long Radius, all types r/D = 1.5 800 0.20 0.304Mitered, 1 Weld, 90 Degree r/D = 1.5 1000 1.15 1.716Mitered, 2 Welds, 45 Degree r/D = 1.5 800 0.35 0.527Mitered, 3 Welds, 30 Degree r/D = 1.5 800 0.30 0.453Mitered, 4 Welds, 22.5 Degree r/D = 1.5 800 0.27 0.408Mitered, 5 Welds, 18 Degree r/D = 1.5 800 0.25 0.378

Elbow - 45 Degree Standard, all types r/D = 1 500 0.20 0.301Long Radius, all types r/D = 1.5 500 0.15 0.227Mitered, 1 Weld, 45 Degree 500 0.25 0.376Mitered, 2 Welds, 22.5 Degree 500 0.15 0.227

Elbows - 180 Degree Standard, Screwed r/D = 1 1000 0.60 0.900Standard, Flanged/Welded r/D = 1 1000 0.35 0.529Long Radius, all types r/D = 1.5 1000 0.30 0.454

Tees Through Branch (as elbow)Standard, Screwed 500 0.70 1.043Long Radius, Screwed 800 0.40 0.601Standard, Flanged/Welded 800 0.80 1.194Stub-in Branch 1000 1.00 1.493Run Through Threaded r/D = 1 200 0.10 0.150Run Through Flanged/Welded r/D = 1 150 0.50 0.743Run Through Stub-in Branch 100 0.00 0.001

Valve Gate Valve 300 0.10 0.151Ball Valve 500 0.15 0.227Plug Valve 1000 0.25 0.380Globe Standard 1500 4.00 5.949Globe Angle or Y type 1000 2.00 2.977Diaphragm Valve Dam-Type 1000 2.00 2.977Butterfly Valve 800 0.25 0.378Check Valve Lift 2000 10.00 14.856Check Valve Swing 1500 1.50 2.240Check Valve Tilting Disk 1000 0.50 0.751

Reducer Square Reducer 1.717Tapered Reducer 1.062Round Reducer 0.408

Expander Square Expander 10.894Tapered Expander 10.841Round Expander 10.894

Orifice Thin 38.93Thick 38.639

Formula

Reference:Chemical Engineering Magazine

in November, 1988 issue of Chemical Engineering Magazine

K1 K¥

Full Line Size, b = 1Reduced Trim, b = 0.9Reduced Trim, b = 0.9

K = K1/NRe + K¥(1+1/ID)

The two-K method predicts by William B. Hooper published in August, 1981 issue of

Calculate head loss caused by change in pipe size by William B. Hooper

Darby's 3-K Friction Factor Method

Fitting Type Geometry

Elbow - 90 Degree Threaded, Standard r/D = 1 800 0.14 4.0 0.598Threaded, Long Radius r/D = 1.5 800 0.071 4.2 0.318Flanged, Welded, Bend r/D = 1 800 0.091 4.0 0.391Flanged, Welded, Bend r/D = 2 800 0.056 3.9 0.239Flanged, Welded, Bend r/D = 4 800 0.066 3.9 0.280Flanged, Welded, Bend r/D = 6 800 0.075 4.2 0.336Mitered, 1 Weld, 90 Degree 1000 0.27 4.0 1.148Mitered, 2 Welds, 45 Degree 800 0.068 4.1 0.300Mitered, 3 Welds, 30 Degree 800 0.035 4.2 0.161

Elbow - 45 Degree Threaded, Standard r/D = 1 500 0.071 4.2 0.315Long Radius r/D = 1.5 500 0.052 4.0 0.224Mitered, 1 Weld, 45 Degree 500 0.086 4.0 0.367Mitered, 2 Welds, 22.5 Degree 500 0.052 4.0 0.224

Elbows - 180 Degree Threaded, Colsed Return Bend r/D = 1 1000 0.23 4.0 0.979Flanged r/D = 1 1000 0.12 4.0 0.515All r/D = 1.5 1000 0.10 4.0 0.431

Tees Through Branch (as elbow)Threaded r/D = 1 500 0.274 4.0 1.160Threaded r/D = 1.5 800 0.14 4.0 0.598Flanged r/D = 1 800 0.28 4.0 1.188Stub-in Branch 1000 0.34 4.0 1.443Run Through Threaded r/D = 1 200 0.091 4.0 0.386Flanged r/D = 1 150 0.017 4.0 0.073Stub-in Branch 100 0 0 0.001

Valves Angle Valve - 45 Degree 950 0.25 4.0 1.063Angle Valve - 90 Degree 1000 0.69 4.0 2.919Globe Valve 1500 1.70 3.6 6.636Plug Valve Branch Flow 500 0.41 4.0 1.734Plug Valve Straight Through 300 0.084 3.9 0.350Plug Valve Three-Way (flow through) 300 0.14 4.0 0.593Gate Valve 300 0.037 3.9 0.156Ball Valve 300 0.017 4.0 0.074Diaphragm Valve Dam-Type 1000 0.69 4.9 3.418

Swing Check Valve 1500 0.46 4.0 1.954

Lift Check Valve 2000 2.85 3.8 11.579

Formula

Reference: Correlate Pressure Drops Through Fittings By Ron Darby published in April 2001 Issue of Chemical Engineering Journal

Km Ki Kd Kf

Full Line Size, b = 1Full Line Size, b = 1Standard, b = 1

Standard, b = 1Standard, b = 1

Vmin = 35r-1/2

Vmin = 40r-1/2

Kf = (Km/Nre)+Ki[1+(Kd/Din0.3)]

Pipe Size Data

Nominal Outside Dia. CS Pipe SS Pipe Thickness Inside Dia. Inside Dia.Size inch Type Sch No. inch inch mm1/8 0.405 - - 10S 0.049 0.307 7.801/8 STD 40 40S 0.068 0.269 6.831/8 XS 80 80S 0.095 0.215 5.461/4 0.540 - - 10S 0.065 0.410 10.411/4 STD 40 40S 0.088 0.364 9.251/4 XS 80 80S 0.119 0.302 7.673/8 0.675 - - 10S 0.065 0.545 13.843/8 STD 40 40S 0.091 0.493 12.523/8 XS 80 80S 0.126 0.423 10.741/2 0.840 - - 5S 0.065 0.710 18.031/2 - - 10S 0.083 0.674 17.121/2 STD 40 40S 0.109 0.622 15.801/2 XS 80 80S 0.147 0.546 13.871/2 - 160 - 0.187 0.466 11.841/2 XXS XXS - 0.294 0.252 6.403/4 1.050 - - 5S 0.065 0.920 23.373/4 - - 10S 0.083 0.884 22.453/4 STD 40 40S 0.113 0.824 20.933/4 XS 80 80S 0.154 0.742 18.853/4 - 160 - 0.219 0.612 15.543/4 XXS XXS - 0.308 0.434 11.021 1.315 - - 5S 0.065 1.185 30.101 - - 10S 0.109 1.097 27.861 STD 40 40S 0.133 1.049 26.641 XS 80 80S 0.179 0.957 24.311 - 160 - 0.250 0.815 20.701 XXS XXS - 0.358 0.599 15.21

1 1/4 1.660 - - 5S 0.065 1.530 38.861 1/4 - - 10S 0.109 1.442 36.631 1/4 STD 40 40S 0.140 1.380 35.051 1/4 XS 80 80S 0.191 1.278 32.461 1/4 - 160 - 0.250 1.160 29.461 1/4 XXS XXS - 0.382 0.896 22.761 1/2 1.900 - - 5S 0.065 1.770 44.961 1/2 - - 10S 0.109 1.682 42.721 1/2 STD 40 40S 0.145 1.610 40.891 1/2 XS 80 80S 0.200 1.500 38.101 1/2 - 160 - 0.281 1.338 33.991 1/2 XXS XXS - 0.400 1.100 27.94

2 2.375 - - 5S 0.065 2.245 57.022 - - 10S 0.109 2.157 54.79

2 STD 40 40S 0.154 2.067 52.502 XS 80 80S 0.218 1.939 49.252 - 160 - 0.344 1.687 42.852 XXS XXS - 0.436 1.503 38.18

2 1/2 2.875 - - 5S 0.083 2.709 68.812 1/2 - - 10S 0.120 2.635 66.932 1/2 STD 40 40S 0.203 2.469 62.712 1/2 XS 80 80S 0.276 2.323 59.002 1/2 - 160 - 0.375 2.125 53.97

Pipe Size Data

Nominal Outside Dia. CS Pipe SS Pipe Thickness Inside Dia. Inside Dia.Size inch Type Sch No. inch inch mm2 1/2 XXS XXS - 0.552 1.771 44.98

3 3.500 - - 5S 0.083 3.334 84.683 - - 10S 0.120 3.260 82.80

3 STD 40 40S 0.216 3.068 77.933 XS 80 80S 0.300 2.900 73.663 - 160 - 0.438 2.624 66.653 XXS XXS - 0.600 2.300 58.42

3 1/2 4.000 - - 5S 0.083 3.834 97.383 1/2 - - 10S 0.120 3.760 95.503 1/2 STD 40 40S 0.226 3.548 90.123 1/2 XS 80 80S 0.318 3.364 85.45

4 4.500 - - 5S 0.083 4.334 110.084 - - 10S 0.120 4.260 108.20

4 STD 40 40S 0.237 4.026 102.264 XS 80 80S 0.337 3.826 97.184 - 120 - 0.438 3.624 92.054 - 160 - 0.531 3.438 87.334 XXS XXS - 0.674 3.152 80.065 5.563 - - 5S 0.109 5.345 135.765 - - 10S 0.134 5.295 134.495 STD 40 40S 0.258 5.047 128.195 XS 80 80S 0.375 4.813 122.255 - 120 - 0.500 4.563 115.905 - 160 - 0.625 4.313 109.555 XXS XXS - 0.750 4.063 103.206 6.625 - - 5S 0.109 6.407 162.746 - - 10S 0.134 6.357 161.476 STD 40 40S 0.280 6.065 154.056 XS 80 80S 0.432 5.761 146.336 - 120 - 0.562 5.501 139.736 - 160 - 0.719 5.187 131.756 XXS XXS - 0.864 4.897 124.388 8.625 - - 5S 0.109 8.407 213.548 - - 10S 0.148 8.329 211.568 - 20 - 0.250 8.125 206.388 - 30 - 0.277 8.071 205.008 STD 40 40S 0.322 7.981 202.728 - 60 - 0.406 7.813 198.458 XS 80 80S 0.500 7.625 193.678 - 100 - 0.594 7.437 188.908 - 120 - 0.719 7.187 182.558 - 140 - 0.812 7.001 177.838 XXS XXS - 0.875 6.875 174.638 - 160 - 0.906 6.813 173.05

10 10.750 - - 5S 0.134 10.482 266.2410 - - 10S 0.165 10.420 264.6710 - 20 - 0.250 10.250 260.3510 - 30 - 0.307 10.136 257.4510 STD 40 40S 0.365 10.020 254.5110 XS 60 80S 0.500 9.750 247.65

Pipe Size Data

Nominal Outside Dia. CS Pipe SS Pipe Thickness Inside Dia. Inside Dia.Size inch Type Sch No. inch inch mm10 - 80 - 0.594 9.562 242.8710 - 100 - 0.719 9.312 236.5210 - 120 - 0.844 9.062 230.1710 XXS 140 - 1.000 8.750 222.2510 - 160 - 1.125 8.500 215.9012 12.750 - - 5S 0.156 12.438 315.9312 - - 10S 0.180 12.390 314.7112 - 20 - 0.250 12.250 311.1512 - 30 - 0.330 12.090 307.0912 STD STD 40S 0.375 12.000 304.8012 - 40 - 0.406 11.938 303.2312 XS XS 80S 0.500 11.750 298.4512 - 60 - 0.562 11.626 295.3012 - 80 - 0.688 11.374 288.9012 - 100 - 0.844 11.062 280.9712 XXS 120 - 1.000 10.750 273.0512 - 140 - 1.125 10.500 266.7012 - 160 - 1.312 10.126 257.2014 14.000 - - 5S 0.156 13.688 347.6814 - - 10S 0.188 13.624 346.0514 - 10 - 0.250 13.500 342.9014 - 20 - 0.312 13.376 339.7514 STD 30 - 0.375 13.250 336.5514 - 40 - 0.438 13.124 333.3514 XS XS - 0.500 13.000 330.2014 - 60 - 0.594 12.812 325.4214 - 80 - 0.750 12.500 317.5014 - 100 - 0.938 12.124 307.9514 - 120 - 1.094 11.812 300.0214 - 140 - 1.250 11.500 292.1014 - 160 - 1.406 11.188 284.1816 16.000 - - 5S 0.165 15.670 398.0216 - - 10S 0.188 15.624 396.8516 - 10 - 0.250 15.500 393.7016 - 20 - 0.312 15.376 390.5516 STD 30 - 0.375 15.250 387.3516 XS 40 - 0.500 15.000 381.0016 - 60 - 0.656 14.688 373.0816 - 80 - 0.844 14.312 363.5216 - 100 - 1.031 13.938 354.0316 - 120 - 1.219 13.562 344.4716 - 140 - 1.438 13.124 333.3516 - 160 - 1.594 12.812 325.4218 18.000 - - 5S 0.165 17.670 448.8218 - - 10S 0.188 17.624 447.6518 - 10 - 0.250 17.500 444.5018 - 20 - 0.312 17.376 441.3518 STD STD - 0.375 17.250 438.1518 - 30 - 0.438 17.124 434.9518 XS XS - 0.500 17.000 431.80

Pipe Size Data

Nominal Outside Dia. CS Pipe SS Pipe Thickness Inside Dia. Inside Dia.Size inch Type Sch No. inch inch mm18 - 40 - 0.562 16.876 428.6518 - 60 - 0.750 16.500 419.1018 - 80 - 0.938 16.124 409.5518 - 100 - 1.156 15.688 398.4818 - 120 - 1.375 15.250 387.3518 - 140 - 1.562 14.876 377.8518 - 160 - 1.781 14.438 366.7320 20.000 - - 5S 0.188 19.624 498.4520 - - 10S 0.218 19.564 496.9320 - 10 - 0.250 19.500 495.3020 STD 20 - 0.375 19.250 488.9520 XS 30 - 0.500 19.000 482.6020 - 40 - 0.594 18.812 477.8220 - 60 - 0.812 18.376 466.7520 - 80 - 1.031 17.938 455.6320 - 100 - 1.281 17.438 442.9320 - 120 - 1.500 17.000 431.8020 - 140 - 1.750 16.500 419.1020 - 160 - 1.969 16.062 407.9722 22.000 - - 5S 0.188 21.624 549.2522 - - 10S 0.218 21.564 547.7322 - 10 - 0.250 21.500 546.1022 STD 20 - 0.375 21.250 539.7522 XS 30 - 0.500 21.000 533.4022 - 60 - 0.875 20.250 514.3522 - 80 - 1.125 19.750 501.6522 - 100 - 1.375 19.250 488.9522 - 120 - 1.625 18.750 476.2522 - 140 - 1.875 18.250 463.5522 - 160 - 2.125 17.750 450.8524 24.000 - - 5S 0.218 23.564 598.5324 - 10 10S 0.250 23.500 596.9024 STD 20 - 0.375 23.250 590.5524 XS XS - 0.500 23.000 584.2024 - 30 - 0.562 22.876 581.0524 - 40 - 0.688 22.624 574.6524 - 60 - 0.969 22.062 560.3724 - 80 - 1.219 21.562 547.6724 - 100 - 1.531 20.938 531.8324 - 120 - 1.812 20.376 517.5524 - 140 - 2.062 19.876 504.8524 - 160 - 2.344 19.312 490.5226 26.000 - 10 - 0.312 25.376 644.5526 STD STD - 0.375 25.250 641.3526 XS 20 - 0.500 25.000 635.0028 28.000 - 10 - 0.312 27.376 695.3528 STD STD - 0.375 27.250 692.1528 XS 20 - 0.500 27.000 685.8028 - 30 - 0.625 26.750 679.4530 30.000 - - 5S 0.250 29.500 749.30

Pipe Size Data

Nominal Outside Dia. CS Pipe SS Pipe Thickness Inside Dia. Inside Dia.Size inch Type Sch No. inch inch mm30 - 10 10S 0.312 29.376 746.1530 STD STD - 0.375 29.250 742.9530 XS 20 - 0.500 29.000 736.6030 - 30 - 0.625 28.750 730.2532 32.000 - 10 - 0.312 31.376 796.9532 STD STD - 0.375 31.250 793.7532 XS 20 - 0.500 31.000 787.4032 - 30 - 0.625 30.750 781.0532 - 40 - 0.688 30.624 777.8534 34.000 - 10 - 0.344 33.312 846.1234 STD STD - 0.375 33.250 844.5534 XS 20 - 0.500 33.000 838.2034 - 30 - 0.625 32.750 831.8534 - 40 - 0.688 32.624 828.6536 36.000 10 0.312 35.376 898.5536 STD STD 0.375 35.250 895.3536 XS 20 0.500 35.000 889.0036 30 0.625 34.750 882.6536 40 0.750 34.500 876.30

Pipe Size Data Rearranged

Size 10 20 30 40 60 80 1001/8" 0.269 0.2151/4" 0.364 0.3023/8" 0.493 0.4231/2" 0.622 0.5463/4" 0.824 0.7421" 1.049 0.957

1.25" 1.380 1.2781.5" 1.610 1.5002" 2.067 1.939

2.5" 2.469 2.3233" 3.068 2.900

3.5" 3.548 3.3644" 4.026 3.8265" 5.047 4.8136" 6.065 5.7618" 8.125 8.071 7.981 7.813 7.625 7.437

10" 10.250 10.136 10.020 9.750 9.562 9.31212" 12.250 12.090 11.938 11.626 11.374 11.06214" 13.500 13.376 13.250 13.124 12.812 12.500 12.12416" 15.500 15.376 15.250 15.000 14.688 14.312 13.93818" 17.500 17.376 17.124 16.876 16.500 16.124 15.68820" 19.500 19.250 19.000 18.812 18.376 17.938 17.43822" 21.500 21.250 21.000 Invalid 20.250 19.750 19.25024" 23.500 23.250 22.876 22.624 22.062 21.562 20.93826" 25.376 25.000 Invalid28" 27.376 27.000 26.75030" 29.376 29.000 28.75032" 31.376 31.000 30.750 30.62434" 33.312 33.000 32.750 32.62436" 35.376 35.000 34.750 34.500

StandardUser

Pipe Size Data Rearranged

120 140 160 STD XS XSSInvalidInvalidInvalid

0.466 0.2520.612 0.4340.815 0.5991.160 0.8961.338 1.1001.687 1.5032.125 1.7712.624 2.300

3.624 3.438 3.1524.563 4.313 4.0635.501 5.187 4.8977.187 7.001 6.813 6.8759.062 8.750 8.500

10.750 10.500 10.126 12.000 11.750 10.75011.812 11.500 11.188 13.250 13.00013.562 13.124 12.812 15.250 15.00015.250 14.876 14.438 17.250 17.00017.000 16.500 16.062 19.250 19.00018.750 18.250 17.750 21.250 21.00020.376 19.876 19.312 23.250 23.000

25.250 25.00027.250 27.00029.250 Invalid31.250 Invalid33.250 33.00035.250 35.000

Pump Power Calculation

Select Units IP Unit ConversionHead 137 ft 41.76 mDischarge 70 USgpm 15.89 cu.mtr/hrSpecific Gravity 1Pump Efficiency 50 %Motor Efficiency 90 %

Water Power 2.42 HP 1.78 kWBreak Power 4.84 HP 3.56 kWMotor Power 5.38 HP 3.95 kW

Formula in IP Units

WHP = H x Q x 8.33 x SG/33000

H = Head in FeetQ = Flowrate in Usgpm8.33 is conversion factor for gallons to lbs33000 is conversion factor foot-pounds/minute to HP

Formula in SI Units

WKW =

H = Head in meters

Q =

g = 3600 is conversion factor for hr to seconds1000 is conversion factor from W to kW

H x Q x 1000 x SG x g/[3600 x 1000]

Flowrate in m3/hr

1000 is coversion factor from m3 to kg

Acceleration due to gravity - 9.81m/s2