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  • A) Welcome & Introduction
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  • D) References
  • E) Additional Resources

  • A) System Curves
  • B) Pump Curves
  • C) Combined Pump & System Curves
  • D) Pump Principles
  • E) Submergence

  • A) Water
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  • A) Pipe Frictional Losses
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  • B) Stainless Steel Pipe
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  • G) Motor Dimensions

  • A) Unit Conversions
  • B) Kinematic & Dynamic Viscosity Conversion
  • C) Pipe Friction Loss Calculator
  • D) Line Shaft Bearing Loss Calculator
  • E) Horizontal Tank Volume Calculator
  • F) Vertical Tank Volume Calculator
  • G) Spherical Tank Volume Calculator
  • H) Atmospheric Pressure Calculator

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Pump Piping – Practices to Improve Reliability and Operation – Recorded Webinar Series

Learn the requirements for pump piping design per the requirements in ANSI/HI 9.6.6. Inlet and outlet piping requirements and case studies. Wet well connections, modeling, parallel pump piping, pump station retrofit piping and more.

Learn more

Note: Internal diameter and area are calculated based on nominal values

Pipe Dimensions: Iron (Ductile) pipe per AWWA C151/A21.51-17

Nominal Size Outside Diameter, inches Wall Thickness, inches Pressure Class Internal Diameter, inches Internal Diameter, feet Internal Area, square feet e/D, Relative Roughness e, Absolute Roughness, feet
3 3.96 0.25 350 3.46 0.2883 0.0652949 0.002948 0.00085
4 4.8 0.25 350 4.3 0.3583 0.1008473 0.002372 0.00085
6 6.9 0.25 350 6.4 0.5333 0.2234021 0.001594 0.00085
8 9.05 0.25 350 8.55 0.7125 0.3987123 0.001193 0.00085
10 11.1 0.26 350 10.58 0.8817 0.6105184 0.000964 0.00085
12 13.2 0.28 350 12.64 1.0533 0.871408 0.000807 0.00085
14 15.3 0.28 250 14.74 1.2283 1.1850109 0.000692 0.00085
14 15.3 0.3 300 14.7 1.225 1.1785881 0.000694 0.00085
14 15.3 0.31 350 14.68 1.2233 1.1753833 0.000695 0.00085
16 17.4 0.3 250 16.8 1.4 1.5393804 0.000607 0.00085
16 17.4 0.32 300 16.76 1.3967 1.5320587 0.000609 0.00085
16 17.4 0.34 350 16.72 1.3933 1.5247545 0.00061 0.00085
18 19.5 0.31 250 18.88 1.5733 1.9441572 0.00054 0.00085
18 19.5 0.34 300 18.82 1.5683 1.9318199 0.000542 0.00085
18 19.5 0.36 350 18.78 1.565 1.9236168 0.000543 0.00085
20 21.6 0.33 250 20.94 1.745 2.391557 0.000487 0.00085
20 21.6 0.36 300 20.88 1.74 2.3778715 0.000489 0.00085
20 21.6 0.38 350 20.84 1.7367 2.3687696 0.000489 0.00085
24 25.8 0.33 200 25.14 2.095 3.4471322 0.000406 0.00085
24 25.8 0.37 250 25.06 2.0883 3.4252283 0.000407 0.00085
24 25.8 0.4 300 25 2.0833 3.4088462 0.000408 0.00085
24 25.8 0.43 350 24.94 2.0783 3.3925034 0.000409 0.00085
30 32 0.34 150 31.32 2.61 5.3502108 0.000326 0.00085
30 32 0.38 200 31.24 2.6033 5.3229139 0.000327 0.00085
30 32 0.42 250 31.16 2.5967 5.2956867 0.000327 0.00085
30 32 0.45 300 31.1 2.5917 5.2753122 0.000328 0.00085
30 32 0.49 350 31.02 2.585 5.2482072 0.000329 0.00085
36 38.3 0.38 150 37.54 3.1283 7.6862751 0.000272 0.00085
36 38.3 0.42 200 37.46 3.1217 7.6535502 0.000272 0.00085
36 38.3 0.47 250 37.36 3.1133 7.6127422 0.000273 0.00085
36 38.3 0.51 300 37.28 3.1067 7.5801744 0.000274 0.00085
36 38.3 0.56 350 37.18 3.0983 7.5395628 0.000274 0.00085
42 44.5 0.41 150 43.68 3.64 10.4062115 0.000234 0.00085
42 44.5 0.47 200 43.56 3.63 10.3491131 0.000234 0.00085
42 44.5 0.52 250 43.46 3.6217 10.301651 0.000235 0.00085
42 44.5 0.57 300 43.36 3.6133 10.254298 0.000235 0.00085
42 44.5 0.63 350 43.24 3.6033 10.1976185 0.000236 0.00085
48 50.8 0.46 150 49.88 4.1567 13.5700135 0.000204 0.00085
48 50.8 0.52 200 49.76 4.1467 13.5047992 0.000205 0.00085
48 50.8 0.58 250 49.64 4.1367 13.4397421 0.000205 0.00085
48 50.8 0.64 300 49.52 4.1267 13.374842 0.000206 0.00085
48 50.8 0.7 350 49.4 4.1167 13.310099 0.000206 0.00085
54 57.56 0.51 150 56.54 4.7117 17.4356843 0.00018 0.00085
54 57.56 0.58 200 56.4 4.7 17.3494454 0.000181 0.00085
54 57.56 0.65 250 56.26 4.6883 17.2634203 0.000181 0.00085
54 57.56 0.72 300 56.12 4.6767 17.177609 0.000182 0.00085
54 57.56 0.79 350 55.98 4.665 17.0920115 0.000182 0.00085
60 61.61 0.54 150 60.53 5.0442 19.9833703 0.000169 0.00085
60 61.61 0.61 200 60.39 5.0325 19.8910381 0.000169 0.00085
60 61.61 0.68 250 60.25 5.0208 19.7989196 0.000169 0.00085
60 61.61 0.76 300 60.09 5.0075 19.6939031 0.00017 0.00085
60 61.61 0.83 350 59.95 4.9958 19.6022428 0.00017 0.00085
64 65.67 0.56 150 64.55 5.3792 22.7258367 0.000158 0.00085
64 65.67 0.64 200 64.39 5.3658 22.6133154 0.000158 0.00085
64 65.67 0.72 250 64.23 5.3525 22.5010732 0.000159 0.00085
64 65.67 0.8 300 64.07 5.3392 22.3891104 0.000159 0.00085
64 65.67 0.87 350 63.93 5.3275 22.2913719 0.00016 0.00085
Nominal Size Outside Diameter, inches Wall Thickness, inches Pressure Class Internal Diameter, inches Internal Diameter, feet Internal Area, square feet e/D, Relative Roughness e, Absolute Roughness, feet
3 3.96 0.25 350 3.46 0.2883 0.0652949 0.002948 0.00085
4 4.8 0.25 350 4.3 0.3583 0.1008473 0.002372 0.00085
6 6.9 0.25 350 6.4 0.5333 0.2234021 0.001594 0.00085
8 9.05 0.25 350 8.55 0.7125 0.3987123 0.001193 0.00085
10 11.1 0.26 350 10.58 0.8817 0.6105184 0.000964 0.00085
12 13.2 0.28 350 12.64 1.0533 0.871408 0.000807 0.00085
14 15.3 0.28 250 14.74 1.2283 1.1850109 0.000692 0.00085
14 15.3 0.3 300 14.7 1.225 1.1785881 0.000694 0.00085
14 15.3 0.31 350 14.68 1.2233 1.1753833 0.000695 0.00085
16 17.4 0.3 250 16.8 1.4 1.5393804 0.000607 0.00085
16 17.4 0.32 300 16.76 1.3967 1.5320587 0.000609 0.00085
16 17.4 0.34 350 16.72 1.3933 1.5247545 0.00061 0.00085
18 19.5 0.31 250 18.88 1.5733 1.9441572 0.00054 0.00085
18 19.5 0.34 300 18.82 1.5683 1.9318199 0.000542 0.00085
18 19.5 0.36 350 18.78 1.565 1.9236168 0.000543 0.00085
20 21.6 0.33 250 20.94 1.745 2.391557 0.000487 0.00085
20 21.6 0.36 300 20.88 1.74 2.3778715 0.000489 0.00085
20 21.6 0.38 350 20.84 1.7367 2.3687696 0.000489 0.00085
24 25.8 0.33 200 25.14 2.095 3.4471322 0.000406 0.00085
24 25.8 0.37 250 25.06 2.0883 3.4252283 0.000407 0.00085
24 25.8 0.4 300 25 2.0833 3.4088462 0.000408 0.00085
24 25.8 0.43 350 24.94 2.0783 3.3925034 0.000409 0.00085
30 32 0.34 150 31.32 2.61 5.3502108 0.000326 0.00085
30 32 0.38 200 31.24 2.6033 5.3229139 0.000327 0.00085
30 32 0.42 250 31.16 2.5967 5.2956867 0.000327 0.00085
30 32 0.45 300 31.1 2.5917 5.2753122 0.000328 0.00085
30 32 0.49 350 31.02 2.585 5.2482072 0.000329 0.00085
36 38.3 0.38 150 37.54 3.1283 7.6862751 0.000272 0.00085
36 38.3 0.42 200 37.46 3.1217 7.6535502 0.000272 0.00085
36 38.3 0.47 250 37.36 3.1133 7.6127422 0.000273 0.00085
36 38.3 0.51 300 37.28 3.1067 7.5801744 0.000274 0.00085
36 38.3 0.56 350 37.18 3.0983 7.5395628 0.000274 0.00085
42 44.5 0.41 150 43.68 3.64 10.4062115 0.000234 0.00085
42 44.5 0.47 200 43.56 3.63 10.3491131 0.000234 0.00085
42 44.5 0.52 250 43.46 3.6217 10.301651 0.000235 0.00085
42 44.5 0.57 300 43.36 3.6133 10.254298 0.000235 0.00085
42 44.5 0.63 350 43.24 3.6033 10.1976185 0.000236 0.00085
48 50.8 0.46 150 49.88 4.1567 13.5700135 0.000204 0.00085
48 50.8 0.52 200 49.76 4.1467 13.5047992 0.000205 0.00085
48 50.8 0.58 250 49.64 4.1367 13.4397421 0.000205 0.00085
48 50.8 0.64 300 49.52 4.1267 13.374842 0.000206 0.00085
48 50.8 0.7 350 49.4 4.1167 13.310099 0.000206 0.00085
54 57.56 0.51 150 56.54 4.7117 17.4356843 0.00018 0.00085
54 57.56 0.58 200 56.4 4.7 17.3494454 0.000181 0.00085
54 57.56 0.65 250 56.26 4.6883 17.2634203 0.000181 0.00085
54 57.56 0.72 300 56.12 4.6767 17.177609 0.000182 0.00085
54 57.56 0.79 350 55.98 4.665 17.0920115 0.000182 0.00085
60 61.61 0.54 150 60.53 5.0442 19.9833703 0.000169 0.00085
60 61.61 0.61 200 60.39 5.0325 19.8910381 0.000169 0.00085
60 61.61 0.68 250 60.25 5.0208 19.7989196 0.000169 0.00085
60 61.61 0.76 300 60.09 5.0075 19.6939031 0.00017 0.00085
60 61.61 0.83 350 59.95 4.9958 19.6022428 0.00017 0.00085
64 65.67 0.56 150 64.55 5.3792 22.7258367 0.000158 0.00085
64 65.67 0.64 200 64.39 5.3658 22.6133154 0.000158 0.00085
64 65.67 0.72 250 64.23 5.3525 22.5010732 0.000159 0.00085
64 65.67 0.8 300 64.07 5.3392 22.3891104 0.000159 0.00085
64 65.67 0.87 350 63.93 5.3275 22.2913719 0.00016 0.00085

Tbl. 4.C.1

Last updated on July 19th, 2024

Related topics

A) Steel Pipe
B) Stainless Steel Pipe
D) Non-Ferrous Pipe and Tube
E) Plastic PVC Pipe
F) Flange Dimensions
G) Motor Dimensions