Type L Copper Tubing Internal Volume
Nominal Tubing
Inches (mm)
1/2 (12.7)
5/8 (16)
3/4 (19)
1 (25.4)
1-1/4 (31.6)
1-1/2 (38.1)
2 (50.8)
2-1/2 (63.5)
3 (76.2)
Freezing Point of Aqueous Solutions
Ethylene Glycol,
% by Volume
Mixing Glycol and Water
If possible, it is recommended to purchase the antifreeze solution already pre-mixed by the
manufacturer. If this is not the case, always pre-mix the glycol and water prior to adding to the system.
The chemical reaction between the two will release oxygen. Oxygen is extremely undesirable in a
closed loop system.
Table 21 Type L Copper Tubing Internal Volume
Tubing OD
Size
Inches (mm)
0.63 (16)
0.75 (19)
.875 (22)
1.125 (29)
1.375 (35)
1.625 (41)
2.125 (54)
2.625 (66.7)
3.125 (79.4)
Table 22 Freezing Point of Aqueous Solutions
Freezing Point,
Degrees F (C)
0
32 (0)
10
24 (-4.4)
20
15 (-9.4)
30
4 (-15.6)
40
-13 (-10.6)
NOTE: Risk of a leaking coil due to freezing and/or corrosion. Can cause
equipment and serious building damage.
Volume per Foot
Volume per 100 Feet
of Tubing,
Gallons (Liters)
Gallons (Liters)
0.0121 (0.046)
0.0174 (0.066)
0.0251 (0.095)
0.0429 (0.162)
0.0655 (0.248)
0.0925 (0.350)
0.161 (0.350)
0.248 (0.939)
0.354 (1.34)
Propylene Glycol,
% by Volume
0
10
20
30
40
71
gForce Ultra IOM
of Tubing,
1.21 (4.58)
1.74 (6.59)
2.51 (9.50)
4.29 (16.2)
6.55 (2.48)
9.25 (35.0)
16.1 (60.9)
24.8 (93.9)
35.4 (134)
Freezing Point
Degree F (C)
32 (0)
27 (-2.8)
18 (-7.8)
8 (-13.3)
-6 (-14.4)
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