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Table 28. Weight of Refrigerants in Copper Lines During Operation (Pounds per 100 lineal feet of type "L" tubing).
Line Size Suction Line at Suction Temperature
O.D. Liquid Hot Gas
in Inches Refrigerant Line Line -40˚F -20˚F 0˚F +20˚F +40˚F
134a 4.0 .15 .01 .01 .02 .04 .06
3/8 22 3.9 .22 .02 .03 .04 .06 .08
R507, 404A 3.4 .31 .03 .04 .06 .09 .13
134a 7.4 .30 .01 .03 .04 .07 .11
1/2 22 7.4 .41 .03 .05 .07 .11 .15
R507, 404A 6.4 .58 .04 .07 .13 .16 .24
134a 11.9 .47 .02 .05 .07 .12 .17
5/8 22 11.8 .65 .05 .08 .12 .17 .25
R507, 404A 10.3 .93 .07 .11 .17 .25 .35
134a 24.7 .99 .05 .10 .15 .24 .36
7/8 22 24.4 1.35 .10 .16 .24 .36 .51
R507, 404A 21.2 1.92 .15 .23 .37 .51 .72
134a 42.2 1.70 .08 .17 .26 .41 .60
1 1/8 22 41.6 2.30 .17 .28 .42 .61 .87
R507, 404A 36.1 3.27 .26 .39 .63 .86 1.24
134a 64.2 2.57 .14 .26 .40 .61 1.91
1 3/8 22 63.5 3.50 .27 .42 .64 .93 1.33
R507, 404A 55.0 4.98 .40 .58 .95 1.32 1.87
134a 90.9 3.65 .20 .37 .57 .87 1.30
1 5/8 22 90.0 4.96 .37 .59 .90 1.33 1.88
R507, 404A 78.0 7.07 .56 .82 1.35 1.86 2.64
134a 158 6.34 .34 .64 .98 1.51 2.24
2 1/8 22 156 8.61 .65 1.03 1.57 2.30 3.26
R507, 404A 134 12.25 .98 1.43 2.35 3.23 4.58
134a 244 9.78 .52 .99 1.51 2.32 3.47
2 5/8 22 241 13.70 1.01 1.59 2.42 3.54 5.03
R507, 404A 209 18.92 1.51 2.21 3.62 5.00 7.07
134a 348 13.97 .75 1.41 2.16 3.31 4.96
3 1/8 22 344 18.95 1.44 2.28 3.45 5.05 7.18
R507, 404A 298 27.05 2.16 3.15 5.17 7.14 9.95
134a 471 18.90 .99 1.91 2.92 4.48 6.69
3 5/8 22 465 25.60 1.94 3.08 4.67 6.83 9.74
R507, 404A 403 36.50 2.92 4.25 6.97 19.65 13.67
134a 612 24.56 1.29 2.49 3.81 5.84 8.75
4 1/8 22 605 33.40 2.53 4.01 6.08 8.90 12.70
R507, 404A 526 47.57 3.80 5.55 9.09 12.58 17.80