Selecting Field-Supplied Copper Tubing; Selecting Field-Supplied Copper Tubing - LG Art Cool PREMIER Engineer's Manual

Table 9: 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 14: Coiled Expansion Loops and offsets.
L
R
Large Tubing U-bend (>3/4 in.) Large Tubing U-bend (>3/4 in.)
Table 10: Radii of Coiled Expansion Loops and Developed Lengths of Expansion offsets
Anticipated Linear nominal Tube Size (oD) inches
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
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
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
R = Centerline Length of Pipe.
1
L = Centerline Minimum Radius (inches).
2
0.11 0.11 0.12 0.13 0.14
0.22 0.22 0.23 0.26 0.28
0.33 0.32 0.35 0.39 0.42
0.44 0.43 0.46 0.52 0.56
0.55 0.54 0.58 0.65 0.70
0.66 0.65 0.69 0.78 0.84
L
Small Tubing U-bend (<3/4 in.) Small Tubing U-bend (<3/4 in.)
reFrIGerAnT deSIGn | 37
0.15 0.15
0.29 0.30
0.44 0.45
0.58 0.60
0.73 0.75
0.87 0.90