Selecting Field-Supplied Copper Tubing; Selecting Field-Supplied Copper Tubing - LG Art Cool Mirror Inverter Engineering Manual

Table 11: Linear Thermal Expansion of Copper Tubing in Inches
Pipe
Length
1
35° 40° 45°
10 0.04 0.04 0.05
20 0.08 0.08 0.10
30 0.12 0.12 0.15
40
0.16 0.16 0.20
50
0.20 0.20 0.25
60 0.24 0.24 0.30
Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, www.engineeringtoolbox.com.
1
Figure 19: Coiled Expansion Loops and offsets
L
R
Large Tubing U-bend (>3/4 in.) Large Tubing U-bend (>3/4 in.)
Table 12: Radii of Coiled Expansion Loops and Developed Lengths of Expansion offsets
Anticipated Linear
Expansion (LE) (inches)
R
1
1/2
L
2
R
1
1
L
2
R
1
1-1/2
L
2
R
1
2
L
2
R
1
2-1/2
L
2
R
1
3
L
2
R
1
3-1/2
L
2
R
1
4
L
2
R = Centerline Length of Pipe.
1
L = Centerline Minimum Radius (inches).
2
Due to our policy of continuous product innovation, some specifications may change without notification.
50° 55° 60° 65° 70°
0.06 0.06 0.07 0.08 0.08
0.12 0.13 0.14 0.15 0.16
0.18 0.20 0.21 0.23 0.24
0.24 0.26 0.28 0.30 0.32
0.30 0.33 0.35 0.38 0.40
0.36 0.39 0.42 0.45 0.48
L
nominal Tube Size (oD) inches
1/4 3/8
6 7
38 44
9 10
54 63
11 12
66 77
12 14
77 89
14 16
86 99
15 17
94 109
16 19
102 117
17 20
109 126
rEFrigErant PiPing dESign

Selecting Field-Supplied Copper Tubing

Fluid Temperature °F
75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130°
0.09 0.09 0.10 0.10 0.11
0.17 0.18 0.19 0.20 0.21
0.26 0.27 0.29 0.30 0.32
0.34 0.36 0.38 0.40 0.42
0.43 0.45 0.48 0.50 0.53
0.51 0.54 0.57 0.60 0.63
R
Loop
1/2
8
50
11
70
14
86
16
99
18
111
19
122
21
131
22
140
0.11 0.11 0.12 0.13
0.22 0.22 0.23 0.26
0.33 0.32 0.35 0.39
0.44 0.43 0.46 0.52
0.55 0.54 0.58 0.65
0.66 0.65 0.69 0.78
L
Small Tubing U-bend (<3/4 in.) Small Tubing U-bend (<3/4 in.)
3/4
9
59
13
83
16
101
19
117
21
131
23
143
25
155
26
166
reFrIGerAnT deSIGn | 47
0.14 0.15 0.15
0.28 0.29 0.30
0.42 0.44 0.45
0.56 0.58 0.60
0.70 0.73 0.75
0.84 0.87 0.90