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COPPER EXPANSION AND CONTRACTION
Table 11: Linear Thermal Expansion of Copper Tubing in Inches.
Pipe
Length
1
35°
40°
45°
10
0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.11 0.12 0.13 0.14 0.15 0.15
20
0.08 0.08 0.10 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.22 0.23 0.26 0.28 0.29 0.30
30
0.12 0.12 0.15 0.18 0.20 0.21 0.23 0.24 0.26 0.27 0.29 0.30 0.32 0.33 0.32 0.35 0.39 0.42 0.44 0.45
40
0.16 0.16 0.20 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.43 0.46 0.52 0.56 0.58 0.60
50
0.20 0.20 0.25 0.30 0.33 0.35 0.38 0.40 0.43 0.45 0.48 0.50 0.53 0.55 0.54 0.58 0.65 0.70 0.73 0.75
60
0.24 0.24 0.30 0.36 0.39 0.42 0.45 0.48 0.51 0.54 0.57 0.60 0.63 0.66 0.65 0.69 0.78 0.84 0.87 0.90
70
0.28 0.28 0.35 0.42 0.46 0.49 0.53 0.56 0.60 0.63 0.67 0.70 0.74 0.77 0.76 0.81 0.91 0.98 1.02 1.05
80
0.32 0.32 0.40 0.48 0.52 0.56 0.60 0.64 0.68 0.72 0.76 0.80 0.84 0.88 0.86 0.92 1.04 1.12 1.16 1.20
90
0.36 0.36 0.45 0.54 0.59 0.63 0.68 0.72 0.77 0.81 0.86 0.90 0.95 0.99 0.97 1.04 1.17 1.26 1.31 1.35
100
0.40 0.40 0.50 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.08 1.15 1.30 1.40 1.45 1.50
120
0.48 0.48 0.60 0.72 0.78 0.84 0.90 0.96 1.02 1.08 1.14 1.20 1.26 1.32 1.30 1.38 1.56 1.68 1.74 1.80
140
0.56 0.56 0.70 0.84 0.91 0.98 1.05 1.12 1.19 1.26 1.33 1.40 1.47 1.54 1.51 1.61 1.82 1.96 2.03 2.10
160
0.64 0.64 0.80 0.96 1.04 1.12 1.20 1.28 1.36 1.44 1.52 1.60 1.68 1.76 1.73 1.84 2.08 2.24 2.32 2.40
180
0.72 0.72 0.90 1.08 1.17 1.26 1.35 1.44 1.53 1.62 1.71 1.80 1.89 1.98 1.94 2.07 2.34 2.52 2.61 2.70
Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, www.engineeringtoolbox.com.
1
Figure 27: Coiled Expansion Loops and Offsets (Plan View).
L
R
Large Tubing U-bend (>3/4 in.)
All expansion loops and offsets must be installed in the horizontal plane to prevent the possibility of trapping oil. Loops and offsets in vertical risers
must also be installed in a horizontal plane.
Table 12: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets.
Anticipated Linear
Expansion (LE) (inches)
R
1/2
L
R
1
L
R
1-1/2
L
R
2
L
R
2-1/2
L
R
3
L
R
3-1/2
L
R
4
L
R = Centerline Length of Pipe.
1
26
50°
55°
60°
65°
70°
L
1/4
6
1
38
2
9
1
54
2
11
1
66
2
12
1
77
2
14
1
86
2
15
1
94
2
16
1
102
2
17
1
109
2
L = Centerline Minimum Radius (inches).
2
Due to our policy of continuous product innovation, some specifications may change without notification.
©
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Fluid Temperature °F
75°
80°
85°
90°
95° 100° 105° 110° 115° 120° 125° 130°
R
Loop
Nominal Tube Size (OD) inches
3/8
7
44
10
63
12
77
14
89
16
99
17
109
19
117
20
126
L
Small Tubing U-bend (<3/4 in.)
1/2
3/4
8
9
50
59
11
13
70
83
14
16
86
101
16
19
99
117
18
21
111
131
19
23
122
143
21
25
131
155
22
26
140
166
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