User Guide

150 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 and clevis hangers or loops has a thermal expansion rate of 0.12/10°F ΔT/100 ft. (3.05mm/5.56°C ΔT/30.48m).
80
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
90
50 0.54 15.59 3.12 6.24
60 0.648 17.08 3.42 6.83
70 0.756 18.44 3.69 7.38
80 0.864 19.72 3.94 7.89
90 0.972 20.91 4.18 8.37
100 1.08 22.05 4.41 8.82
100
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
110
50 0.66 17.23 3.45 6.89
60 0.792 18.88 3.78 7.55
70 0.924 20.39 4.08 8.16
80 1.056 21.80 4.36 8.72
90 1.188 23.12 4.62 9.25
100 1.32 24.37 4.87 9.75
120
50 0.72 18.00 3.60 7.20
60 0.864 19.72 3.94 7.89
70 1.008 21.30 4.26 8.52
80 1.152 22.77 4.55 9.11
90 1.296 24.15 4.83 9.66
100 1.44 25.46 5.09 10.18
130
50 0.78 18.73 3.75 7.49
60 0.936 20.52 4.10 8.21
70 1.092 22.17 4.43 8.87
80 1.248 23.70 4.74 9.48
90 1.404 25.14 5.03 10.05
100 1.56 26.50 5.30 10.60
140
50 0.84 19.44 3.89 7.78
60 1.008 21.30 4.26 8.52
70 1.176 23.00 4.60 9.20
80 1.344 24.59 4.92 9.84
90 1.512 26.08 5.22 10.43
100 1.68 27.50 5.50 11.00
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 and clevis hangers or loops
150
50 0.9 20.12 4.02 8.05
60 1.08 22.05 4.41 8.82
70 1.26 23.81 4.76 9.52
80 1.44 25.46 5.09 10.18
90 1.62 27.00 5.40 10.80
100 1.8 28.46 5.69 11.38
160
50 0.96 20.78 4.16 8.31
60 1.152 22.77 4.55 9.11
70 1.344 24.59 4.92 9.84
80 1.536 26.29 5.26 10.52
90 1.728 27.89 5.58 11.15
100 1.92 29.39 5.88 11.76
Table E-2: PEX pipe expansion arm calculations ½" to 3"