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10 Part # 25000102
Installation and Operations Manual
Liquid Line Rise in Feet
Refrigerant
10’ 15’ 20’ 25’ 30’ 40’ 50’ 75’ 100’
PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F
R-12 5.4 2.8 8.1 4.2 10.7 5.4 13.4 6.9 16.1 8.3 21.5 11.3 26.9 14.3 40.3 22.4 53.7 31.0
R-22 4.8 1.6 7.3 2.3 9.7 3.1 12.1 3.8 14.5 4.7 19.4 6.2 24.2 8.0 36.3 12.1 48.4 16.5
R-502 4.9 1.5 7.3 2.2 9.7 3.0 12.1 3.7 14.6 4.5 19.5 6.0 24.3 7.6 36.4 11.5 48.6 14.8
R-134A 4.9 2.0 7.4 2.9 9.8 4.1 12.3 5.2 14.7 6.3 19.7 8.8 24.6 11.0 36.8 17.0 49.1 23.7
R-404A/R-507 4.1 1.1 6.1 1.6 8.2 2.1 10.2 2.7 12.2 3.3 16.3 4.1 20.4 5.6 30.6 8.3 40.8 11.8
Table 2. Pressure Loss of Liquid Refrigerants
(In Liquid Line Risers - Expressed in Pressure Drop, PSIG, and Subcooling Loss, °F)
Based on 110°F liquid temperature at bottom of riser
Table 3. Equivalent Feet of Pipe
(Due to Value and Fitting Friction)
Copper Tube
OD, Type “L”
1/2 5/8 7/8 1-1/8 1-3/8 1-5/8 2-1/8 2-5/8 3-1/8 3-5/8 4-1/8 5-1/8 6-1/8
Globe Value (Open) 14 16 22 28 36 42 57 69 83 99 118 138 168
Angle Value (Open) 7 9 12 15 18 21 28 34 42 49 57 70 83
90° Turn Through Tee 3 4 5 6 8 9 12 14 17 20 22 28 34
Tee - Straight Through
or Sweep Below
.75 1 1.5 2 2.5 3 3.5 4 5 6 7 9 11
90° Elbow or Reducing
Tee (Straight Through)
1 2 2 3 4 4 5 7 8 10 12 14 16