boeschpumps.com

Back to Boesch Engineering page


Friction Losses Through Pipe Fittings in Terms of Equivalent Lengths of Standard Pipe (Ft)

Fit ID Pipe Size (In) Standard Elbow Medium Radius Elbow Long Radius Elbow 45 Deg Elbow Tee Return Bend Gate Valve Open Globe Valve Open Angle Valve Open
1 0.50 1.50 1.40 1.10 0.77 3.40 3.80 0.35 16.00 8.40
2 0.75 2.20 1.80 1.40 1.00 4.50 5.00 0.47 22.00 12.00
3 1.00 2.70 2.30 1.70 1.30 5.80 6.10 0.60 27.00 15.00
4 1.25 3.70 3.00 2.40 1.60 7.80 8.50 0.80 37.00 18.00
5 1.50 4.30 3.60 2.80 2.00 9.00 10.00 0.95 44.00 22.00
6 2.00 5.50 4.60 3.50 2.50 11.00 13.00 1.20 57.00 28.00
7 2.50 6.50 5.40 4.20 3.00 14.00 15.00 1.40 66.00 33.00
8 3.00 8.10 6.80 5.10 3.80 17.00 18.00 1.70 85.00 42.00
9 3.50 9.50 8.00 6.00 4.40 19.00 21.00 2.00 99.00 50.00
10 4.00 11.00 9.10 7.00 5.00 22.00 24.00 2.30 110.00 58.00
11 4.50 12.00 10.00 7.90 5.60 24.00 27.00 2.60 130.00 61.00
12 5.00 14.00 12.00 8.90 6.10 27.00 31.00 2.90 140.00 70.00
13 6.00 16.00 14.00 11.00 7.70 33.00 37.00 3.50 160.00 83.00
14 8.00 21.00 18.00 14.00 10.00 43.00 49.00 4.50 220.00 110.00
15 10.00 26.00 22.00 17.00 13.00 56.00 61.00 5.70 290.00 140.00
16 12.00 32.00 26.00 20.00 15.00 66.00 73.00 6.70 340.00 170.00
17 14.00 36.00 31.00 23.00 17.00 76.00 85.00 8.00 390.00 190.00
18 16.00 42.00 35.00 27.00 19.00 87.00 100.00 9.00 430.00 220.00
19 18.00 46.00 40.00 30.00 21.00 100.00 110.00 10.20 500.00 250.00
20 20.00 52.00 43.00 34.00 23.00 110.00 120.00 12.00 560.00 280.00
21 22.00 58.00 50.00 37.00 25.00 130.00 140.00 13.00 610.00 310.00
22 24.00 63.00 53.00 40.00 28.00 140.00 150.00 14.00 680.00 340.00
23 30.00 79.00 68.00 50.00 35.00 165.00 190.00 17.00 860.00 420.00
24 36.00 94.00 79.00 60.00 43.00 200.00 220.00 20.00 1000.00 500.00
25 42.00 120.00 95.00 72.00 50.00 240.00 260.00 23.00 1200.00 600.00
26 48.00 135.00 110.00 82.00 58.00 275.00 300.00 26.00 1400.00 680.00