- 42 - Handheld Ultrasonic Flowmeter
8.3 Pipe Size Tables
Table A1: Standard copper tubes according
ASTM
B88.
Nominal
Size
(inches)
Actual Outside
Diameter
(inches)
Tolerance on Outside
Diameter
(inches)
Wall Thickness
(inches)
Annealed Drawn
Nominal Tolerance
Type K
3/4 7/8
0.875 0.003 0.001
0.065
0.006
1 1
1/8
1.125 0.0035 0.0015
0.065
0.006
1 1/4
1 3/8
1.375
0.004
0.0015
0.065
0.006
1 1/2
1 5/8
1.625
0.0045
0.002
0.072
0.007
2 2
1/8
2.125 0.005 0.002
0.083
0.008
2 1/2
2 5/8
2.625
0.005
0.002
0.095
0.010
3 3
1/8
3.125 0.005 0.002
0.109
0.011
3 1/2
3 5/8
3.625
0.005
0.002
0.120
0.012
4 4
1/8
4.125 0.005 0.002
0.134
0.013
Type L
3/4 7/8 0.875 0.003 0.001 0.045
0.004
1 1
1/8
1.125 0.0035 0.0015 0.050
0.005
1 1/4
1 3/8
1.375
0.004
0.0015
0.055
0.006
1 1/2
1 5/8
1.625
0.0045
0.002
0.060
0.006
2 2
1/8
2.125 0.005 0.002 0.070
0.007
2 1/2
2 5/8
2.625
0.005
0.002
0.080
0.008
3 3
1/8
3.125 0.005 0.002 0.090
0.009
3 1/2
3 5/8
3.625
0.005
0.002
0.100
0.010
4 4
1/8
4.125 0.005 0.002 0.114
0.011
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