
www.DaikinApplied.com 31
AG 31-011 • REFRIGERANT PIPING DESIGN
Table 3: Hot Gas Bypass Valve Sizing Chart
Direct Acting Discharge Bypass Valve Capacities (Tons)
Capacities based on discharge temperatures 50°F above is entropic compression, 25°F superheat at the compressor, 10°F sub-cooling, and includes both the hot
gas bypassed and liquid refrigerant for desuperheating, regardless of whether the liquid is fed through the system thermostatic expansion valves or an auxiliary
desuperheating thermostatic expansion valve.
Refrigerant
Valve T
ype
Adjustment Range (psig)
Minimum Allowable Evaporator Temperature at the Reduced Load (°F)
40
26
20
0
-20
-40
Condensing Temperature (°F)
80
100
120
80
100
120
80
100
120
80
100
120
80
100
120
80
100
120
Adjustable Models
22
ADRI-1-1/4
ADRIE-1-1/4
0/55
—
—
—
0.34 0.044 0.56
0.41
0.52
0.66
0.49
0.63
0.79
0.46
0.59
0.75
0.43
0.56
0.70
0/75
0.45
0.58
0.73
0.50
0.64
0.81
0.50
0.65
0.81
0.47
0.60
0.76
0.39
0.50
0.63
0.33
0.42
0.54
0/100 0.41
0.53
0.67
0.42
0.54
0.67
0.41
0.53
0.66
0.38
0.49
0.62
0.34
0.44
0.56
0.31
0.40
0.50
ADRS-2
ADRSE-2
0/30
—
—
—
—
—
—
—
—
—
3.02
3.90
4.91
2.91
3.75
4.74
2.81
3.63
4.58
0/80
2.73
3.51
4.42
2.77
3.57
4.50
2.79
3.59
4.53
2.84
3.66
4.61
2.83
3.65
4.60
2.71
3.50
4.42
ADRP-3
ADRPE-3
0/30
—
—
—
—
—
—
—
—
—
10.8
13.9
17.6
10.9
14.1
17.8
10.5
13.5
17.1
0/80
7.12
9.16
11.5
7.69
9.90
12.5
7.92
10.2
12.8
8.44
10.9
13.7
8.55
11.0
13.9
8.24
10.6
13.5
ADRHE-6
0/30
—
—
—
—
—
—
—
—
—
10.8
13.9
17.6
10.9
14.1
17.8
10.5
13.5
17.1
0/80
7.12
9.16
11.5
7.69
9.90
12.5
7.92
10.2
12.8
8.44
10.9
13.7
8.55
11.0
13.9
8.24
10.6
13.5
134a
ADRI-1-1/4
ADRIE-1-1/4
0/55
0.30
0.40
0.51
0.31
0.41
0.53
0.31
0.41
0.53
0.29
0.38
0.49
—
—
—
—
—
—
0/75
0.32
0.43
0.55
0.30
0.39
0.50
0.28
0.37
0.48
0.23
0.31
0.40
—
—
—
—
—
—
0/100 0.26
0.34
0.44
0.24
0.32
0.41
0.24
0.31
0.40
0.21
0.28
0.36
—
—
—
—
—
—
ADRS-2
ADRSE-2
0/30
—
—
—
1.97
2.60
3.34
1.94
2.56
3.30
1.87
2.46
3.18
—
—
—
—
—
—
0/80
2.02
2.67
3.43
1.85
2.44
3.15
1.85
2.44
3.15
—
—
—
—
—
—
—
—
—
ADRP-3
ADRPE-3
0/30
—
—
—
3.75
4.95
6.38
3.76
4.96
6.39
3.70
4.89
6.31
—
—
—
—
—
—
0/80
3.74
4.94
6.37
3.35
4.42
5.70
3.36
4.43
5.71
—
—
—
—
—
—
—
—
—
ADRHE-6
0/30
—
—
—
7.09
9.36
12.1
7.09
9.37
12.1
7.12
9.41
12.1
—
—
—
—
—
—
0/80
7.07
9.34
12.0
5.50
7.26
9.36
5.53
7.31
9.41
—
—
—
—
—
—
—
—
—
407C
ADRI-1-1/4
ADRIE-1-1/4
0/55
—
—
—
0.48
0.61
0.77
0.54
0.69
0.86
0.58
0.74
0.93
0.53
0.68
0.85
—
—
—
0/75
0.61
0.78
0.97
0.61
0.78
0.97
0.60
0.77
0.96
0.53
0.68
0.85
0.43
0.56
0.69
—
—
—
0/100 0.51
0.65
0.81
0.50
0.63
0.79
0.48
0.62
0.77
0.44
0.56
0.70
0.39
0.50
0.62
—
—
—
ADRS-2
ADRSE-2
0/30
—
—
—
—
—
—
—
—
—
3.52
4.51
5.63
3.38
4.33
5.41
—
—
—
0/80
3.32
4.25
5.30
3.32
4.25
5.30
3.33
4.27
5.32
3.36
4.31
5.38
3.30
4.23
5.28
—
—
—
ADRP-3
ADRPE-3
0/30
—
—
—
—
—
—
—
—
—
6.74
8.63
10.8
6.74
8.64
10.8
—
—
—
0/80
5.86
7.50
9.36
5.86
7.50
9.36
5.95
7.61
9.50
6.10
7.81
9.75
6.02
7.71
9.63
—
—
—
ADRHE-6
0/30
—
—
—
—
—
—
—
—
—
12.7
16.3
20.3
12.8
16.5
20.5
—
—
—
0/80
9.43
12.1
15.1
9.43
12.1
15.1
9.67
12.4
15.5
10.1
13.0
16.2
10.1
12.9
16.1
—
—
—
This table courtesy of Sporlan Division – Parker Hannifin Corporation. It is only included for the example. Please refer to manufacturers data for sizing and
application.