User Guide

Plumbing Design Assistance Manual l Appendix B – Uponor PEX friction loss tables l 91
Appendix B:
Uponor PEX friction loss tables
¼" Uponor AquaPEX (100% water)
psi loss per 100 feet of tubing
Velocity
(ft/s)
gpm
40°F
4°C
60°F
16°C
80°F
27°C
100°F
38°C
120°F
49°C
140°F
60°C
160°F
71°C
180°F
82°C
1.5 0.21 4.18 3.50 3.22 3.00 2.82 2.68 2.55 2.45
1.6 0.23 4.65 3.90 3.59 3.35 3.16 3.00 2.86 2.74
1.7 0.24 5.15 4.32 3.98 3.72 3.50 3.33 3.17 3.04
1.8 0.26 5.67 4.76 4.39 4.10 3.87 3.67 3.51 3.36
1.9 0.27 6.20 5.22 4.82 4.50 4.25 4.03 3.85 3.70
2.0 0.28 6.76 5.70 5.26 4.92 4.64 4.41 4.21 4.04
2.1 0.30 7.34 6.19 5.72 5.35 5.05 4.80 4.59 4.40
2.2 0.31 7.93 6.70 6.20 5.80 5.47 5.21 4.98 4.78
2.3 0.33 8.55 7.23 6.69 6.26 5.91 5.63 5.38 5.16
2.4 0.34 9.19 7.78 7.20 6.74 6.37 6.06 5.80 5.57
2.5 0.36 9.84 8.34 7.72 7.23 6.84 6.51 6.23 5.98
2.6 0.37 10.52 8.92 8.26 7.74 7.32 6.97 6.67 6.41
2.7 0.38 11.21 9.52 8.82 8.27 7.82 7.45 7.13 6.85
2.8 0.40 11.92 10.13 9.39 8.81 8.33 7.94 7.60 7.30
2.9 0.41 12.65 10.76 9.98 9.36 8.86 8.44 8.08 7.77
3.0 0.43 13.40 11.41 10.58 9.93 9.40 8.96 8.58 8.25
3.1 0.44 14.17 12.07 11.20 10.51 9.95 9.49 9.09 8.74
3.2 0.46 14.95 12.75 11.83 11.11 10.52 10.03 9.61 9.24
3.3 0.47 15.76 13.44 12.48 11.72 11.10 10.59 10.15 9.76
3.4 0.48 16.58 14.15 13.14 12.35 11.70 11.16 10.69 10.29
3.5 0.50 17.42 14.88 13.82 12.99 12.31 11.74 11.26 10.83
3.6 0.51 18.27 15.62 14.51 13.64 12.93 12.34 11.83 11.39
3.7 0.53 19.15 16.37 15.22 14.31 13.57 12.95 12.42 11.95
3.8 0.54 20.04 17.15 15.95 15.00 14.22 13.58 13.02 12.53
3.9 0.55 20.95 17.94 16.68 15.69 14.89 14.21 13.63 13.13
4.0 0.57 21.88 18.74 17.44 16.41 15.56 14.86 14.26 13.73
4.1 0.58 22.82 19.56 18.20 17.13 16.25 15.52 14.90 14.35
4.2 0.60 23.78 20.39 18.98 17.87 16.96 16.20 15.55 14.98
4.3 0.61 24.76 21.24 19.78 18.62 17.68 16.89 16.21 15.62
4.4 0.63 25.75 22.11 20.59 19.39 18.41 17.59 16.88 16.27
4.5 0.64 26.76 22.99 21.41 20.17 19.15 18.30 17.57 16.94
4.6 0.65 27.79 23.88 22.25 20.96 19.91 19.03 18.27 17.61
4.7 0.67 28.83 24.79 23.11 21.77 20.68 19.77 18.99 18.30
4.8 0.68 29.90 25.71 23.97 22.59 21.46 20.52 19.71 19.00
4.9 0.70 30.97 26.65 24.85 23.43 22.26 21.29 20.45 19.72
5.0 0.71 32.07 27.61 25.75 24.28 23.07 22.07 21.20 20.44
5.1 0.73 33.18 28.58 26.66 25.14 23.89 22.86 21.96 21.18
5.2 0.74 34.30 29.56 27.58 26.01 24.73 23.66
22.73 21.93
5.3 0.75 35.45 30.56 28.52 26.90 25.58 24.47 23.52 22.69
5.4 0.77 36.61 31.57 29.47 27.80 26.44 25.30 24.32 23.46
5.5 0.78 37.78 32.60 30.43 28.72 27.31 26.14 25.13 24.24
5.6 0.80 38.97 33.64 31.41 29.64 28.20 26.99 25.95 25.04
5.7 0.81 40.18 34.69 32.40 30.58 29.10 27.86 26.78 25.85
5.8 0.82 41.40 35.76 33.41 31.54 30.01 28.73 27.63 26.67
5.9 0.84 42.64 36.85 34.43 32.51 30.93 29.62 28.49 27.50
6.0 0.85 43.90 37.94 35.46 33.49 31.87 30.52 29.36 28.34
6.1 0.87 45.17 39.06 36.50 34.48 32.82 31.44 30.24 29.19
6.2 0.88 46.45 40.18 37.56 35.49 33.78 32.36 31.13 30.06
6.3 0.90 47.75 41.33 38.64 36.50 34.76 33.30 32.04 30.94
6.4 0.91 49.07 42.48 39.72 37.54 35.74 34.25 32.95 31.82
6.5 0.92 50.41 43.65 40.82 38.58 36.74 35.21 33.88 32.73
6.6 0.94 51.75 44.83 41.94 39.64 37.76 36.18 34.82 33.64
6.7 0.95 53.12 46.03 43.06 40.71 38.78 37.17 35.78 34.56
¼" Uponor AquaPEX (100% water)
psi loss per 100 feet of tubing
Velocity
(ft/s)
gpm
40°F
4°C
60°F
16°C
80°F
27°C
100°F
38°C
120°F
49°C
140°F
60°C
160°F
71°C
180°F
82°C
6.8 0.97 54.50 47.24 44.20 41.79 39.82 38.17 36.74 35.49
6.9 0.98 55.89 48.47 45.36 42.89 40.87 39.18 37.72 36.44
7.0 1.00 57.30 49.70 46.52 44.00 41.93 40.20 38.70 37.40
7.1 1.01 58.73 50.96 47.70 45.12 43.00 41.23 39.70 38.37
7.2 1.02 60.17 52.22 48.90 46.25 44.09 42.28 40.71 39.35
7.3 1.04 61.63 53.50 50.10 47.40 45.19 43.34 41.74 40.34
7.4 1.05 63.10 54.80 51.32 48.56 46.30 44.41 42.77 41.34
7.5 1.07 64.58 56.10 52.55 49.73 47.42 45.49 43.82 42.36
7.6 1.08 66.09 57.43 53.80 50.92 48.55 46.58 44.87 43.38
7.7 1.09 67.60 58.76 55.06 52.12 49.70 47.69 45.94 44.42
7.8 1.11 69.13 60.11 56.33 53.33 50.86 48.80 47.02 45.47
7.9 1.12 70.68 61.47 57.61 54.55 52.03 49.93 48.11 46.53
8.0 1.14 72.24 62.85 58.91 55.78 53.22 51.07 49.22 47.60
8.1 1.15 73.82 64.24 60.22 57.03 54.41 52.23 50.33 48.68
8.2 1.17 75.41 65.64 61.54 58.29 55.62 53.39 51.46 49.77
8.3 1.18 77.02 67.05 62.88 59.56 56.84 54.56 52.59 50.87
8.4 1.19 78.64 68.48 64.23 60.85 58.07 55.75 53.74 51.99
8.5 1.21 80.27 69.93 65.59 62.14 59.31 56.95 54.90 53.12
8.6 1.22 81.92 71.38 66.96 63.45 60.57 58.16 56.08 54.25
8.7 1.24 83.59 72.85 68.35 64.77 61.84 59.38 57.26 55.40
8.8 1.25 85.27 74.34 69.75 66.11 63.12 60.62 58.45 56.56
8.9 1.27 86.96 75.83 71.16 67.45 64.41 61.86 59.66 57.73
9.0 1.28 88.67 77.34 72.59 68.81 65.71 63.12 60.88 58.92
9.1 1.29 90.40 78.86 74.03 70.18 67.03 64.39 62.11 60.11
9.2 1.31 92.14 80.40 75.48 71.57 68.35 65.67 63.35 61.31
9.3 1.32 93.89 81.95 76.94 72.96 69.69 66.96 64.60 62.53
9.4 1.34 95.66 83.51 78.42 74.37 71.04 68.27 65.86 63.76
9.5 1.35 97.44 85.09 79.91 75.79 72.41 69.58 67.13 64.99
9.6 1.37 99.24 86.68 81.41 77.22 73.78 70.91 68.42 66.24
9.7 1.38 101.05 88.28 82.92 78.67 75.17 72.25 69.71 67.50
9.8 1.39 102.87 89.89 84.45 80.12 76.57 73.60 71.02 68.77
9.9 1.41 104.71 91.52 85.99 81.59 77.98 74.96 72.34 70.05
10.0 1.42 106.57 93.16 87.54 83.07 79.40 76.33 73.67 71.35
10.1 1.44 108.43 94.82 89.10 84.56 80.83 77.72 75.01 72.65
10.2 1.45 110.32 96.49 90.68 86.07 82.28 79.11 76.36 73.96
10.3 1.46 112.21 98.17 92.27 87.58 83.73 80.52 77.73 75.29
10.4 1.48 114.12 99.86 93.87 89.11 85.20 81.94 79.10 76.63
10.5 1.49 116.05 101.57 95.49 90.65 86.68 83.37
80.49 77.97
10.6 1.51 117.99 103.28 97.11 92.21 88.18 84.81 81.89 79.33
10.7 1.52 119.94 105.02 98.75 93.77 89.68 86.26 83.29 80.70
10.8 1.54 121.91 106.76 100.40 95.35 91.19 87.72 84.71 82.08
10.9 1.55 123.89 108.52 102.07 96.94 92.72 89.20 86.14 83.47
11.0 1.56 125.89 110.29 103.74 98.54 94.26 90.69 87.58 84.87
11.1 1.58 127.90 112.07 105.43 100.15 95.81 92.18 89.04 86.29
11.2 1.59 129.92 113.87 107.13 101.77 97.37 93.69 90.50 87.71
11.3 1.61 131.96 115.68 108.85 103.41 98.95 95.21 91.98 89.14
11.4 1.62 134.01 117.50 110.57 105.06 100.53 96.75 93.46 90.59
11.5 1.64 136.08 119.34 112.31 106.72 102.13 98.29 94.96 92.05
11.6 1.65 138.16 121.19 114.06 108.39 103.74 99.84 96.47 93.51
11.7 1.66 140.25 123.05 115.82 110.08 105.36 101.41 97.99 94.99
11.8 1.68 142.36 124.92 117.60 111.77 106.99 102.99 99.52 96.48
11.9 1.69 144.49 126.81 119.38 113.48 108.63 104.57 101.06 97.98
12.0 1.71 146.62 128.70 121.18 115.20 110.28 106.17 102.61 99.49