Daikin R22, Refrigerant Piping Design Manual, Page: 52 / 78

AG 31-011 • REFRIGERANT PIPING DESIGN 52 www.DaikinApplied.com
Figure 22: R-134a Suction Gas Velocity
Figure 22 is based on 40°F suction temperature and 105°F condensing temperature. For other conditions, apply correction factors
from Table 24 .
Table 24: R-134a Suction Gas Velocity Correction Factors
Cond Temp
(°F)
Suction Temperature (°F)
10 15 20 25 30 35 40 45 50
85 1.76 1.56 1.40 1.25 1.12 1.00 0.90 0.82 0.74
90 1.81 1.61 1.43 1.28 1.15 1.03 0.93 0.84 0.76
95 1.86 1.65 1.47 1.32 1.18 1.06 0.95 0.86 0.77
100 1.91 1.70 1.52 1.35 1.21 1.09 0.98 0.88 0.80
105 1.97 1.75 1.56 1.39 1.25 1.12 1.00 0.91 0.82
110 2.04 1.81 1.61 1.44 1.29 1.15 1.04 0.93 0.84
115 2.10 1.87 1.66 1.48 1.33 1.19 1.07 0.96 0.87
120 2.18 1.93 1.72 1.53 1.37 1.23 1.10 0.99 0.90
125 2.26 2.00 1.78 1.59 1.42 1.27 1.14 1.03 0.92
130 2.35 2.08 1.85 1.65 1.47 1.32 1.18 1.06 0.96
135 2.44 2.16 1.92 1.71 1.53 1.37 1.23 1.10 0.99
140 2.55 2.26 2.00 1.78 1.59 1.42 1.27 1.14 1.03
145 2.66 2.36 2.09 1.86 1.66 1.48 1.33 1.19 1.07