Friction Losses in Pipes | The amount of water | Water Column Losses in Normal Pipes | m3/ h | Lıter/mın. | Lıter/sec | Nominal pipe diameter in inches, and pipe inner diameter in mm | 1 / 2 "
15,75 | 3 / 4 "
21,25 | 1 "
27,00 | 11 / 4 "
35,75 | 11 / 2 "
41,25 | 2 "
52,50 | 0,6 | 10 | 0,16 | 0,855
9,910 | 0,470
2,407 | 0,292
0,784 | - | - | - | 0,9 | 15 | 0,25 | 1,282
20,11 | 0,705
4,862 | 0,249
0,416 | - | - | - | 1,2 | 20 | 0,33 | 1,710
33,53 | 0,940
8,035 | 0,584
2,588 | 0,331
0,667 | 0,249
0,346 | - | 1,5 | 25 | 0,42 | 2,138
49,93 | 1,174
11,94 | 0,730
3,834 | 0,415
1,004 | 0,312
0,510 | - | 1,8 | 30 | 0,50 | 2,565
69,34 | 1,409
16,50 | 0,876
5,277 | 0,498
1,379 | 0,374
0,700 | 0,231
0,223 | 2,1 | 35 | 0,58 | 2,993
91,54 | 1,644
21,75 | 1,022
6,949 | 0,581
1,811 | 0,436
0,914 | 0,269
0,291 | 2,4 | 40 | 0,67 | - | 1,879
27,66 | 1,168
8,820 | 0,664
2,290 | 0,499
1,160 | 0,308
0,368 | 3,0 | 50 | 0,83 | - | 2,349
41,40 | 1,460
13,14 | 0,830
3,403 | 0,623
1,719 | 0,385
0,544 | 3,6 | 60 | 1,00 | - | 2,819
57,74 | 1,751
18,28 | 0,996
4,718 | 0,748
2,375 | 0,462
0,751 | 4,2 | 70 | 1,12 | - | 3,288
76,49 | 2,043
24,18 | 1,162
6,231 | 0,873
3,132 | 0,539
0,988 | 4,8 | 80 | 1,33 | - | - | 2,335
30,87 | 1,328
7,940 | 0,997
3,988 | 0,616
1,254 | 5,4 | 90 | 1,50 | - | - | 2,627
38,30 | 1,494
9,828 | 1,122
4,927 | 0,693
1,551 | 6,0 | 100 | 1,67 | - | - | 2,919
46,49 | 1,660
11,90 | 1,247
5,972 | 0,770
1,875 | 7,5 | 125 | 2,08 | - | - | 3,649
70,41 | 2,075
17,93 | 1,558
0,809 | 0,962
2,802 | 9,0 | 150 | 2,50 | - | - | - | 2,490
25,11 | 1,870
12,53 | 1,154
3,903 | 10,5 | 175 | 2,92 | - | - | - | 2,904
33,32 | 2,182
16,66 | 1,347
5,179 | 12 | 200 | 3,33 | - | - | - | 3,319
42,75 | 2,493
21,36 | 1,539
6,624 | 15 | 250 | 4,17 | - | - | - | 4,149
64,86 | 3,117
32,32 | 1,924
10,03 | 18 | 300 | 5,00 | - | - | - | - | 3,740
45,42 | 2,309
14,04 | 24 | 400 | 6,67 | - | - | - | - | 4,987
78,17 | 3,078
24,04 | 24 | 500 | 8,33 | - | - | - | - | - | 3,848
36,71 | 30 | 600 | 10,0 | | - | - | - | - | 4,618
51,84 | 36 | 700 | 11,7 | - | - | - | - | - | - | 42 | 800 | 13,3 | - | - | - | - | - | - | 48 | 900 | 15,0 | - | - | - | - | - | - | 54 | 1000 | 16,7 | - | - | - | - | - | - | 60 | 1250 | 20,8 | - | - | - | - | - | - | 75 | 1500 | 25,0 | - | - | - | - | - | - | 90 | 1750 | 29,2 | - | - | - | - | - | - | 105 | 2000 | 33,3 | - | - | - | - | - | - | 120 | 2500 | 41,7 | - | - | - | - | - | - | 150 | 3000 | 50 | - | - | - | - | - | - | 240 | 4000 | 66,7 | - | - | - | - | - | - | 300 | 5000 | 83,3 | - | - | - | - | - | - | 90 ° elbow valve | 1,0 | 1,0 | 1,1 | 1,2 | 1,3 | 1,4 | T connection, check valve | 4,0 | 4,0 | 4,0 | 5,0 | 5,0 | 5,0 | This table was calculated using the formula of a = 0.02 at H.Lang's new 10 ° C water temperature. |
| | Friction Losses in Pipes | The amount of water | Water Column Losses in Normal Pipes | m3/ h | Lıter/mın | Lıter/sec | Nominal pipe diameter in inches, and pipe inner diameter in mm | 21 / 2 "
68,00 | 3 "
80,25 | 31 / 2 "
92,50 | 4 "
105,0 | 5 "
130,0 | 6 "
155,5 | 0,6 | 10 | 0,16 | - | - | - | - | - | - | 0,9 | 15 | 0,25 | - | - | - | - | - | - | 1,2 | 20 | 0,33 | - | - | - | - | - | - | 1,5 | 25 | 0,42 | - | - | - | - | - | - | 1,8 | 30 | 0,50 | - | - | - | - | - | - | 2,1 | 35 | 0,58 | - | - | - | - | - | - | 2,4 | 40 | 0,67 | - | - | - | - | - | - | 3,0 | 50 | 0,83 | 0,229
0,159 | - | - | - | - | - | 3,6 | 60 | 1,00 | 0,275
0,218 | - | - | - | - | - | 4,2 | 70 | 1,12 | 0,321
0,287 | 0,231
0,131 | - | - | - | - | 4,8 | 80 | 1,33 | 0,367
0,363 | 0,263
0,164 | - | - | - | - | 5,4 | 90 | 1,50 | 0,413
0,449 | 0,269
0,203 | - | - | - | - | 6,0 | 100 | 1,67 | 0,459
0,542 | 0,329
0,244 | 0,248
0,124 | - | - | - | 7,5 | 125 | 2,08 | 0,574
0,809 | 0,412
0,365 | 0,310
0,185 | 0,241
0,101 | - | - | 9,0 | 150 | 2,50 | 0,668
1,124 | 0,494
0,506 | 0,372
0,256 | 0,289
0,140 | - | - | 10,5 | 175 | 2,92 | 0,803
1,488 | 0,576
0,670 | 0,434
0,338 | 0,337
0,184 | - | - | 12 | 200 | 3,33 | 0,918
1,901 | 0,659
0,855 | 0,496
0,431 | 0,385
0,234 | 0,251
0,084 | - | 15 | 250 | 4,17 | 1,147
2,860 | 0,823
1,282 | 0,620
0,646 | 0,481
0,350 | 0,314
0,126 | - | 18 | 300 | 5,00 | 1,377
4,009 | 0,988
1,792 | 0,744
0,903 | 0,577
0,488 | 0,377
0,175 | 0,263
0,074 | 24 | 400 | 6,67 | 1,836
6,828 | 1,317
3,053 | 0,992
1,530 | 0,770
0,829 | 0,502
0,294 | 0,351
0,124 | 24 | 500 | 8,33 | 2,295
10,40 | 1,647
4,622 | 1,240
2,315 | 0,962
1,254 | 0,628
0,445 | 0,439
0,187 | 30 | 600 | 10,0 | 2,753
14,62 | 1,976
6,505 | 1,488
3,261 | 1,155
1,757 | 0,753
0,623 | 0,526
0,260 | 36 | 700 | 11,7 | 3,212
19,52 | 2,306
8,693 | 1,736
4,356 | 1,347
2,345 | 0,879
0,831 | 0,614
0,347 | 42 | 800 | 13,3 | 3,671
25,20 | 2,635
11,18 | 1,984
5,582 | 1,540
3,009 | 1,005
1,066 | 0,702
0,445 | 48 | 900 | 15,0 | 4,130
31,51 | 2,964
13,97 | 2,232
6,983 | 1,732
3,762 | 1,130
1,328 | 0,790
0,555 | 54 | 1000 | 16,7 | 4,589
38,43 | 3,294
17,06 | 2,480
8,521 | 1,925
4,595 | 1,256
1,616 | 0,877
0,674 | 60 | 1250 | 20,8 | - | 4,117
26,10 | 3,100
13,00 | 2,406
7,010 | 1,570
2,458 | 1,097
1,027 | 75 | 1500 | 25,0 | - | 4,941
36,97 | 3,720
18,42 | 2,887
9,892 | 1,883
3,468 | 1,316
1,144 | 90 | 1750 | 29,2 | - | - | 4,340
24,76 | 3,368
13,30 | 2,197
4,665 | 1,535
1,934 | 105 | 2000 | 33,3 | - | - | 4,960
31,94 | 3,850
17,16 | 2,511
5,995 | 1,754
2,496 | 120 | 2500 | 41,7 | - | - | - | 4,812
26,26 | 3,139
9,216 | 2,193
3,807 | 150 | 3000 | 50 | - | - | - | - | 3,767
13,05 | 2,632
5,417 | 240 | 4000 | 66,7 | - | - | - | - | 5,023
22,72 | 3,509
8,926 | 300 | 5000 | 83,3 | - | - | - | - | - | 4,386
14,42 | 90 ° elbow valve | 1,5 | 1,6 | 1,6 | 1,7 | 2,0 | 2,5 | T connection, check valve | 6,0 | 6,0 | 6,0 | 7,0 | 8,0 | 9,0 | | |
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