User Guide

140 l uponorengineering.com
3" PEX pipe expansion arm
Delta
T (ΔT)
Run
(ft)
Delta L
(in)
Flexible arm
length (in)
L1
(in)
L2
(in)
PEX with PEX-a Pipe Support, strut and strut clamps has a thermal expansion rate of 0.08"/10°F ΔT/100 ft. (2.03mm/5.56°C ΔT/30.48m).
30
50 0.12 7.35 1.47 2.94
60 0.144 8.05 1.61 3.22
70 0.168 8.69 1.74 3.48
80 0.192 9.30 1.86 3.72
90 0.216 9.86 1.97 3.94
100 0.24 10.39 2.08 4.16
40
50 0.16 8.49 1.70 3.39
60 0.192 9.30 1.86 3.72
70 0.224 10.04 2.01 4.02
80 0.256 10.73 2.15 4.29
90 0.288 11.38 2.28 4.55
100 0.32 12.00 2.40 4.80
50
50 0.2 9.49 1.90 3.79
60 0.24 10.39 2.08 4.16
70 0.28 11.22 2.24 4.49
80 0.32 12.00 2.40 4.80
90 0.36 12.73 2.55 5.09
100 0.4 13.42 2.68 5.37
60
50 0.24 10.39 2.08 4.16
60 0.288 11.38 2.28 4.55
70 0.336 12.30 2.46 4.92
80 0.384 13.15 2.63 5.26
90 0.432 13.94 2.79 5.58
100 0.48 14.70 2.94 5.88
70
50 0.28 11.22 2.24 4.49
60 0.336 12.30 2.46 4.92
70 0.392 13.28 2.66 5.31
80 0.448 14.20 2.84 5.68
90 0.504 15.06 3.01 6.02
100 0.56 15.87 3.17 6.35
80
50 0.32 12.00 2.40 4.80
60 0.384 13.15 2.63 5.26
70 0.448 14.20 2.84 5.68
80 0.512 15.18 3.04 6.07
90 0.576 16.10 3.22 6.44
100 0.64 16.97 3.39 6.79
90
50 0.36 12.73 2.55 5.09
60 0.432 13.94 2.79 5.58
70 0.504 15.06 3.01 6.02
80 0.576 16.10 3.22 6.44
90 0.648 17.08 3.42 6.83
100 0.72 18.00 3.60 7.20
3" PEX pipe expansion arm
Delta
T (ΔT)
Run
(ft)
Delta L
(in)
Flexible arm
length (in)
L1
(in)
L2
(in)
PEX with PEX-a Pipe Support, strut and strut clamps has a thermal expansion rate of 0.08"/10°F ΔT/100 ft. (2.03mm/5.56°C ΔT/30.48m).
100
50 0.4 13.42 2.68 5.37
60 0.48 14.70 2.94 5.88
70 0.56 15.87 3.17 6.35
80 0.64 16.97 3.39 6.79
90 0.72 18.00 3.60 7.20
100 0.8 18.97 3.79 7.59
110
50 0.44 14.07 2.81 5.63
60 0.528 15.41 3.08 6.17
70 0.616 16.65 3.33 6.66
80 0.704 17.80 3.56 7.12
90 0.792 18.88 3.78 7.55
100 0.88 19.90 3.98 7.96
120
50 0.48 14.70 2.94 5.88
60 0.576 16.10 3.22 6.44
70 0.672 17.39 3.48 6.96
80 0.768 18.59 3.72 7.44
90 0.864 19.72 3.94 7.89
100 0.96 20.78 4.16 8.31
130
50 0.52 15.30 3.06 6.12
60 0.624 16.76 3.35 6.70
70 0.728 18.10 3.62 7.24
80 0.832 19.35 3.87 7.74
90 0.936 20.52 4.10 8.21
100 1.04 21.63 4.33 8.65
140
50 0.56 15.87 3.17 6.35
60 0.672 17.39 3.48 6.96
70 0.784 18.78 3.76 7.51
80 0.896 20.08 4.02 8.03
90 1.008 21.30 4.26 8.52
100 1.12 22.45 4.49 8.98
150
50 0.6 16.43 3.29 6.57
60 0.72 18.00 3.60 7.20
70 0.84 19.44 3.89 7.78
80 0.96 20.78 4.16 8.31
90 1.08 22.05 4.41 8.82
100 1.2 23.24 4.65 9.30
160
50 0.64 16.97 3.39 6.79
60 0.768 18.59 3.72 7.44
70 0.896 20.08 4.02 8.03
80 1.024 21.47 4.29 8.59
90 1.152 22.77 4.55 9.11
100 1.28 24.00 4.80 9.60
Table E-1: PEX Pipe expansion arm calculations ½" to 3"