SYSTEM ENGINEERING
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HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
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Table 28: Linear Thermal Expansion of Copper Tubing in Inches
Pipe
Length
Fluid Temperature
O
F
35° 40° 45° 50° 55° 60° 65° 70° 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130°
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
200
0.80 0.80 1.00 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.16 2.30 2.60 2.80 2.90 3.00
220
0.88 0.88 1.10 1.32 1.43 1.54 1.65 1.76 1.87 1.98 2.09 2.20 2.31 2.42 2.38 2.53 2.86 3.08 3.19 3.30
240
0.96 0.96 1.20 1.44 1.56 1.68 1.80 1.92 2.04 2.16 2.28 2.40 2.52 2.64 2.59 2.76 3.12 3.36 3.48 3.60
260
1.04 1.04 1.30 1.56 1.69 1.82 1.95 2.08 2.21 2.34 2.47 2.60 2.73 2.86 2.81 2.99 3.38 3.64 3.77 3.90
280
1.12 1.12 1.40 1.68 1.82 1.96 2.10 2.24 2.38 2.52 2.66 2.80 2.94 3.08 3.02 3.22 3.64 3.92 4.06 4.20
300
1.20 1.20 1.50 1.80 1.95 2.10 2.25 2.40 2.55 2.70 2.85 3.00 3.15 3.30 3.24 3.45 3.90 4.20 4.35 4.50
320
1.28 1.28 1.60 1.92 2.08 2.24 2.40 2.56 2.72 2.88 3.04 3.20 3.36 3.52 3.46 3.68 4.16 4.48 4.64 4.80
340
1.36 1.36 1.70 2.04 2.21 2.38 2.55 2.72 2.89 3.06 3.23 3.40 3.57 3.74 3.67 3.91 4.42 4.76 4.93 5.10
360
1.44 1.44 1.80 2.16 2.34 2.52 2.70 2.88 3.06 3.24 3.42 3.60 3.78 3.96 3.89 4.14 4.68 5.04 5.22 5.40
380
1.52 1.52 1.90 2.28 2.47 2.66 2.85 3.04 3.23 3.42 3.61 3.80 3.99 4.18 4.10 4.37 4.94 5.32 5.51 5.70
400
1.60 1.60 2.00 2.40 2.60 2.80 3.00 3.20 3.40 3.60 3.80 4.00 4.20 4.40 4.32 4.60 5.20 5.60 5.80 6.00
420
1.68 1.68 2.10 2.52 2.73 2.94 3.15 3.36 3.57 3.78 3.99 4.20 4.41 4.62 4.54 4.83 5.46 5.88 6.09 6.30
440
1.76 1.76 2.20 2.64 2.86 3.08 3.30 3.52 3.74 3.96 4.18 4.40 4.62 4.84 4.75 5.06 5.72 6.16 6.38 6.60
460
1.84 1.84 2.30 2.76 2.99 3.22 3.45 3.68 3.91 4.14 4.37 4.60 4.83 5.06 4.97 5.29 5.98 6.44 6.67 6.90
480
1.92 1.92 2.40 2.88 3.12 3.36 3.60 3.84 4.08 4.32 4.56 4.80 5.04 5.28 5.18 5.52 6.24 6.72 6.96 7.20
500
2.00 2.00 2.50 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.50 5.40 5.75 6.50 7.00 7.25 7.50
Pipe length baseline temperature = 0°F
Pipe length in feet
The Engineers Toolbox (www.engineeringtoolbox.com)—Expansion of Carbon, Copper and Stainless Steel Pipe
PIPING DESIGN GUIDE