Unbalanced

Flow Over

Flow Under

Balanced

Equal Percentage

GLS — 0.5″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
0.5 (13)

% Open Cv
100% 5.0
90% 4.6
80% 3.7
70% 2.6
60% 1.86
50% 1.36
40% 0.90
30% 0.55
20% 0.33
10% 0.25

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.3
80% 2.5
70% 1.63
60% 1.23
50% 0.85
40% 0.49
30% 0.31
20% 0.189
10% 0.127

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.8
90% 2.5
80% 1.76
70% 1.22
60% 0.94
50% 0.58
40% 0.33
30% 0.22
20% 0.149
10% 0.095

Trim Size (TN)
0.25-06 (6.5-06)

% Open Cv
100% 1.25
90% 1.03
80% 0.70
70% 0.52
60% 0.36
50% 0.24
40% 0.147
30% 0.092
20% 0.058
10% 0.038

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.46
90% 0.45
80% 0.38
70% 0.27
60% 0.168
50% 0.103
40% 0.072
30% 0.043
20% 0.026
10% 0.015

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.94
90% 1.60
80% 1.08
70% 0.81
60% 0.56
50% 0.37
40% 0.23
30% 0.142
20% 0.090
10% 0.060

GLS — 0.75″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
0.71 (18)

% Open Cv
100% 9.5
90% 9.0
80% 7.6
70% 5.6
60% 3.9
50% 3.2
40% 2.3
30% 1.61
20% 1.00
10% 0.63

Trim Size (TN)
0.63 (16)

% Open Cv
100% 9.0
90% 8.3
80% 6.6
70% 4.6
60% 3.0
50% 2.3
40% 1.57
30% 0.94
20% 0.59
10% 0.32

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.5
90% 5.9
80% 4.7
70% 3.0
60% 2.0
50% 1.54
40% 0.98
30% 0.63
20% 0.37
10% 0.24

Trim Size (TN)
0.38 (10)

% Open Cv
100% 4.2
90% 3.7
80% 2.9
70% 1.75
60% 1.38
50% 0.87
40% 0.46
30% 0.29
20% 0.165
10% 0.106

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.9
90% 2.6
80% 1.65
70% 1.23
60% 0.88
50% 0.59
40% 0.31
30% 0.20
20% 0.151
10% 0.093

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.98
90% 1.83
80% 1.22
70% 0.91
60% 0.57
50% 0.35
40% 0.21
30% 0.140
20% 0.087
10% 0.059

GLS – 1.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
0.81 (21)

% Open Cv
100% 15.6
90% 14.2
80% 11.3
70% 8.1
60% 4.9
50% 3.3
40% 2.8
30% 2.1
20% 1.61
10% 1.07

Trim Size (TN)
0.71 (18)

% Open Cv
100% 13.5
90% 11.8
80% 8.9
70% 6.1
60% 3.9
50% 3.1
40% 2.3
30% 1.65
20% 1.12
10% 0.70

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.3
90% 8.7
80% 6.5
70% 4.2
60% 2.7
50% 2.3
40% 1.53
30% 0.98
20% 0.61
10% 0.35

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.6
90% 5.8
80% 4.5
70% 2.9
60% 2.0
50% 1.55
40% 1.10
30% 0.73
20% 0.47
10% 0.26

Trim Size (TN)
0.38 (10)

% Open Cv
100% 4.1
90% 3.4
80% 2.3
70% 1.54
60% 1.31
50% 0.85
40% 0.51
30% 0.33
20% 0.22
10% 0.140

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.9
90% 2.4
80% 1.64
70% 1.16
60% 0.93
50% 0.61
40% 0.35
30% 0.20
20% 0.138
10% 0.089

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.87
90% 1.53
80% 1.08
70% 0.82
60% 0.55
50% 0.31
40% 0.21
30% 0.132
20% 0.082
10% 0.055

Trim Size (TN)
0.25-06 (6.5-06)

% Open Cv
100% 1.26
90% 1.24
80% 0.94
70% 0.63
60% 0.37
50% 0.23
40% 0.129
30% 0.085
20% 0.051
10% 0.024

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.47
90% 0.46
80% 0.29
70% 0.22
60% 0.158
50% 0.113
40% 0.085
30% 0.063
20% 0.043
10% 0.026

GLS – 1.5″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
1.25 (32)

% Open Cv
100%  28
90% 26
80% 21
70% 15.6
60% 10.3
50% 6.7
40% 5.0
30% 3.6
20% 2.3
10% 1.57

Trim Size (TN)
1.00 (25)

% Open Cv
100% 19.1
90% 17.3
80% 14.5
70% 10.9
60% 7.2
50% 4.5
40% 3.3
30% 2.4
20% 1.57
10% 1.06

Trim Size (TN)
0.81 (21)

% Open Cv
100% 12.8
90% 11.3
80% 8.9
70% 6.3
60% 4.0
50% 2.6
40% 1.76
30% 1.05
20% 0.69
10% 0.33

Trim Size (TN)
0.63 (16)

% Open Cv
100%  7.8
90% 6.7
80% 5.2
70% 3.7
60% 2.5
50% 1.7
40% 1.15
30% 0.64
20% 0.40
10% 0.22

Trim Size (TN)
0.38 (10)

% Open Cv
100%  3.6
90% 2.8
80% 1.94
70% 1.42
60% 1.24
50% 0.87
40% 0.58
30% 0.30
20% 0.182
10% 0.109
 

GLS – 2.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
1.63 (41)

% Open Cv
100% 46
90% 41
80% 34
70% 25
60% 16.3
50% 11.4
40% 9.1
30% 5.9
20% 3.8
10% 2.6

Trim Size (TN)
1.25 (32)

% Open Cv
100% 31
90% 27
80% 22
70% 16.0
60% 10.3
50% 6.6
40% 5.2
30% 3.6
20% 2.3
10% 1.56

Trim Size (TN)
1.00 (25)

% Open Cv
100% 21
90% 18.5
80% 15.3
70% 11.2
60% 7.5
50% 4.7
40% 3.3
30% 2.5
20% 1.58
10% 1.06

Trim Size (TN)
0.81 (21)

% Open Cv
100% 13.7
90% 12.2
80% 9.8
70% 7.0
60% 4.4
50% 2.8
40% 2.2
30% 1.45
20% 0.94
10% 0.64

Trim Size (TN)
0.63 (16)

% Open Cv
100% 9.0
90% 8.0
80% 6.2
70% 4.2
60% 2.6
50% 2.0
40% 1.44
30% 0.89
20% 0.53
10% 0.31

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.6
90% 3.3
80% 2.6
70% 1.76
60% 1.17
50% 0.93
40% 0.56
30% 0.35
20% 0.22
10% 0.152

GLS – 3.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
2.63 (67)

% Open Cv
100% 105
90% 96
80% 86
70% 77
60% 61
50% 38
40% 22
30% 16.4
20% 10.3
10% 5.9

Trim Size (TN)
2.00 (51)

% Open Cv
100% 79
90% 74
80% 67
70% 56
60% 41
50% 24
40% 13.5
30% 8.9
20% 6.4
10% 3.7

Trim Size (TN)
1.63 (41)

% Open Cv
100% 51
90% 45
80% 35
70% 24
60% 15.5
50% 10.3
40% 8.2
30% 5.6
20% 3.5
10% 2.5

Trim Size (TN)
1.25 (32)

% Open Cv
100% 32
90% 28
80% 23
70% 15.8
60% 10.5
50% 6.8
40% 5.1
30% 3.5
20% 2.3
10% 1.48
 
 

GLS – 4.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
3.50 (89)

% Open Cv
100% 180
90% 170
80% 155
70% 131
60% 97
50% 57
40% 35
30% 26
20% 20
10% 13.0

Trim Size (TN)
2.63 (67)

% Open Cv
100% 133
90% 124
80% 111
70% 89
60% 63
50% 39
40% 24
30% 16.3
20% 11.4
10% 7.4

Trim Size (TN)
2.25 (57)

% Open Cv
100% 103
90% 95
80% 82
70% 62
60% 40
50% 24
40% 14.9
30% 11.6
20% 7.3
10% 4.6

Trim Size (TN)
1.63 (41)

% Open Cv
100% 56
90% 49
80% 38
70% 25
60% 16.3
50% 10.7
40% 8.6
30% 5.8
20% 3.7
10% 2.5
 
 

GLS – 6.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
5.00 (187)

% Open Cv
100% 356
90% 334
80% 303
70% 265
60% 203
50% 125
40% 59
30% 33
20% 20
10% 13.9

Trim Size (TN)
3.50 (89)

% Open Cv
100% 231
90% 216
80% 193
70% 153
60% 102
50% 58
40% 35
30% 23
20% 17.5
10% 11.1

Trim Size (TN)
3.00 (76)

% Open Cv
100% 191
90% 153
80% 120
70% 101
60% 61
50% 38
40% 26
30% 16.9
20% 11.9
10% 7.9

Trim Size (TN)
2.63 (67)

% Open Cv
100% 139
90% 131
80% 117
70% 94
60% 64
50% 37
40% 22
30% 16.3
20% 10.9
10% 6.8
 
 

GLS – 8.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
6.25 (159)

% Open Cv
100% 608
90% 566
80% 501
70% 414
60% 306
50% 182
40% 107
30% 73
20% 55
10% 34

Trim Size (TN)
5.00 (127)

% Open Cv
100% 462
90% 429
80% 370
70% 291
60% 202
50% 125
40% 59
30% 33
20% 20
10% 14.0

Trim Size (TN)
3.50 (89)

% Open Cv
100% 248
90% 231
80% 203
70% 160
60% 109
50% 61
40% 34
30% 21
20% 13.0
10% 6.9

Trim Size (TN)
2.63 (67)

% Open Cv
100% 142
90% 133
80% 117
70% 94
60% 64
50% 36
40% 22
30% 15.8
20% 10.8
10% 6.9
 
 

GLS – 10″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
8.00 (203)

% Open Cv
100% 900
90% 846
80% 765
70% 658
60% 527
50% 372
40% 193
30% 99
20% 60
10% 42

Trim Size (TN)
6.25 (159)

% Open Cv
100% 687
90% 632
80% 546
70% 423
60% 304
50% 180
40% 107
30% 73
20% 49
10% 34

Trim Size (TN)
5.00 (127)

% Open Cv
100% 491
90% 451
80% 382
70% 288
60% 200
50% 124
40% 59
30% 33
20% 19.8
10% 13.9

GLS – 12″

Control Valve
Unbalanced Trim
Flow Over the Plug
Equal Percentage

Trim Size (TN)
9.50 (241)

% Open Cv
100% 1306
90% 1211
80% 1077
70% 917
60% 695
50% 427
40% 229
30% 153
20% 108
10% 73

Trim Size (TN)
7.38 (187)

% Open Cv
100% 962
90% 886
80% 752
70% 586
60% 422
50% 251
40% 149
30% 101
20% 68
10% 46

Trim Size (TN)
6.25 (159)

% Open Cv
100% 771
90% 713
80% 590
70% 441
60% 305
50% 181
40% 107
30% 73
20% 49
10% 34

GLS — 0.5″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
0.5 (13)

% Open Cv
100% 4.9
90% 4.7
80% 3.9
70% 2.3
60% 1.64
50% 1.07
40% 0.72
30% 0.45
20% 0.30
10% 0.20

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.5
90% 3.1
80% 2.3
70% 1.52
60% 1.01
50% 0.69
40% 0.41
30% 0.27
20% 0.180
10% 0.131

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.5
90% 2.2
80% 1.64
70% 1.07
60% 0.70
50% 0.46
40% 0.28
30% 0.21
20% 0.148
10% 0.106

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.76
90% 1.55
80% 1.02
70% 0.66
60% 0.43
50% 0.27
40% 0.176
30% 0.108
20% 0.074
10% 0.048

Trim Size (TN)
0.25-06 (6.5-06)

% Open Cv
100% 1.18
90% 1.16
80% 0.81
70% 0.50
60% 0.33
50% 0.20
40% 0.134
30% 0.092
20% 0.068
10% 0.059

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.44
90% 0.43
80% 0.41
70% 0.25
60% 0.160
50% 0.100
40% 0.067
30% 0.044
20% 0.029
10% 0.017

GLS — 0.75″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
0.71 (18)

% Open Cv
100% 9.5
90% 8.9
80% 7.5
70% 5.5
60% 3.2
50% 2.2
40% 1.38
30% 0.94
20% 0.67
10% 0.43

Trim Size (TN)
0.63 (16)

% Open Cv
100% 8.5
90% 8.4
80% 6.3
70% 4.3
60% 2.8
50% 1.78
40% 1.23
30% 0.75
20% 0.45
10% 0.27

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.1
90% 5.8
80% 4.7
70% 2.9
60% 1.87
50% 1.20
40% 0.77
30% 0.47
20% 0.30
10% 0.183

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.25-06 (6.5-03)

% Open Cv
100% 1.18
90% 1.17
80% 0.76
70% 0.50
60% 0.32
50% 0.184
40% 0.112
30% 0.064
20% 0.035
10% 0.013

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.7
90% 2.4
80% 1.64
70% 1.10
60% 0.70
50% 0.45
40% 0.26
30% 0.181
20% 0.126
10% 0.081

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.46
90% 0.46
80% 0.45
70% 0.27
60% 0.159
50% 0.092
40% 0.057
30% 0.034
20% 0.015
10% 0.004

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.88
90% 1.80
80% 1.27
70% 0.83
60% 0.47
50% 0.31
40% 0.193
30% 0.124
20% 0.079
10% 0.051

GLS – 1.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
0.81 (21)

% Open Cv
100% 13.5
90% 12.3
80% 9.3
70% 6.6
60% 4.1
50% 2.8
40% 1.87
30% 1.29
20% 0.95
10% 0.66

Trim Size (TN)
0.71 (18)

% Open Cv
100% 12.3
90% 11.4
80% 8.0
70% 5.6
60% 3.5
50% 2.3
40% 1.55
30% 1.04
20% 0.69
10% 0.46

Trim Size (TN)
0.63 (16)

% Open Cv
100% 9.8
90% 9.1
80% 6.1
70% 3.9
60% 2.5
50% 1.69
40% 1.11
30% 0.70
20% 0.45
10% 0.29

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.6
90% 5.9
80% 4.5
70% 2.7
60% 1.80
50% 1.19
40% 0.78
30% 0.47
20% 0.29
10% 0.195

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.9
90% 3.4
80% 2.3
70% 1.49
60% 0.98
50% 0.65
40% 0.43
30% 0.29
20% 0.193
10% 0.129

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.8
90% 2.4
80% 1.63
70% 1.08
60% 0.72
50% 0.48
40% 0.26
30% 0.179
20% 0.125
10% 0.080

Trim Size (TN)
0.25-03 (6.5-03)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058

Trim Size (TN)
0.25-06 (6.5-06)

% Open Cv
100% 1.18
90% 1.04
80% 0.73
70% 0.46
60% 0.31
50% 0.177
40% 0.116
30% 0.083
20% 0.048
10% 0.032

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.51
90% 0.50
80% 0.33
70% 0.194
60% 0.126
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

GLS – 1.5″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
1.25 (32)

% Open Cv
100% 31
90% 29
80% 25
70% 16.3
60% 11.0
50% 7.0
40% 4.5
30% 3.0
20% 1.91
10% 1.30

Trim Size (TN)
1.00 (25)

% Open Cv
100% 22
90% 22
80% 16.7
70% 10.9
60% 6.6
50% 4.5
40% 3.0
30% 1.90
20% 1.32
10% 0.91

Trim Size (TN)
0.81 (21)

% Open Cv
100% 15.8
90% 13.7
80% 9.4
70% 6.1
60% 4.5
50% 2.6
40% 1.58
30% 0.93
20% 0.59
10% 0.33

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.0
90% 8.2
80% 6.3
70% 5.3
60% 3.2
50% 1.91
40% 1.08
30% 0.77
20% 0.43
10% 0.27

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.2
80% 1.95
70% 1.31
60% 1.26
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014
 

GLS – 2.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
1.63 (41)

% Open Cv
100% 47
90% 45
80% 41
70% 30
60% 16.4
50% 10.6
40% 7.0
30% 4.6
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 30
90% 29
80% 24
70% 15.6
60% 10.1
50% 6.4
40% 4.3
30% 2.8
20% 1.86
10% 1.25

Trim Size (TN)
1.00 (25)

% Open Cv
100% 23
90% 22
80% 17.7
70% 11.4
60% 6.7
50% 4.6
40% 3.0
30% 1.89
20% 1.27
10% 0.88

Trim Size (TN)
0.81 (21)

% Open Cv
100% 17.5
90% 17.1
80% 12.5
70% 7.9
60% 5.1
50% 3.3
40% 2.1
30% 1.35
20% 0.93
10% 0.61

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.1
90% 9.1
80% 6.7
70% 4.5
60% 2.7
50% 1.80
40% 1.16
30% 0.74
20% 0.44
10% 0.28

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.1
90% 2.9
80% 2.6
70% 1.95
60% 1.24
50% 0.81
40% 0.50
30% 0.33
20% 0.21
10% 0.147

GLS – 3.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
2.63 (67)

% Open Cv
100% 109
90% 102
80% 93
70% 89
60% 72
50% 36
40% 21
30% 12.9
20% 7.9
10% 4.5

Trim Size (TN)
2.00 (51)

% Open Cv
100% 83
90% 78
80% 72
70% 64
60% 44
50% 25
40% 13.8
30% 8.8
20% 5.3
10% 3.3

Trim Size (TN)
1.63 (41)

% Open Cv
100% 48
90% 46
80% 41
70% 27
60% 17.0
50% 11.2
40% 7.2
30% 4.7
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 32
90% 31
80% 25
70% 16.3
60% 10.6
50% 7.0
40% 4.5
30% 2.9
20% 1.90
10% 1.29
 
 

GLS – 4.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
3.50 (89)

% Open Cv
100%  196
90% 184
80% 169
70% 157
60% 115
50% 57
40% 36
30% 24
20% 15.4
10% 10.7

Trim Size (TN)
2.63 (67)

% Open Cv
100% 132
90% 122
80% 110
70% 99
60% 66
50% 42
40% 27
30% 17.2
20% 10.3
10% 6.7

Trim Size (TN)
2.25 (57)

% Open Cv
100% 97
90% 89
80% 80
70% 66
60% 41
50% 26
40% 16.3
30% 10.3
20% 6.2
10% 4.2

Trim Size (TN)
1.63 (41)

% Open Cv
100% 57
90% 53
80% 43
70% 28
60% 17.6
50% 11.5
40% 7.5
30% 4.9
20% 3.2
10% 2.2
 
 

GLS – 6.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
5.00 (187)

% Open Cv
100% 401
90% 374
80% 340
70% 298
60% 250
50% 148
40% 62
30% 35
20% 18.3
10% 13.7

Trim Size (TN)
3.50 (89)

% Open Cv
100% 225
90% 203
80% 177
70% 153
60% 115
50% 65
40% 41
30% 26
20% 16.5
10% 10.8

Trim Size (TN)
3.00 (76)

% Open Cv
100% 169
90% 152
80% 133
70% 114
60% 73
50% 37
40% 25
30% 16.9
20% 10.9
10% 7.8

Trim Size (TN)
2.63 (67)

% Open Cv
100% 129
90% 118
80% 105
70% 92
60% 67
50% 37
40% 23
30% 14.8
20% 8.8
10% 5.5
 
 

GLS – 8.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
6.25 (159)

% Open Cv
100% 693
90% 645
80% 591
70% 498
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28

Trim Size (TN)
5.00 (127)

% Open Cv
100% 462
90% 429
80% 370
70% 291
60% 202
50% 125
40% 59
30% 33
20% 20
10% 14.0

Trim Size (TN)
3.50 (89)

% Open Cv
100% 244
90% 219
80% 195
70% 160
60% 114
50% 65
40% 41
30% 26
20% 15.9
10% 11.0

Trim Size (TN)
2.63 (67)

% Open Cv
100% 141
90% 130
80% 115
70% 99
60% 67
50% 36
40% 23
30% 14.8
20% 8.6
10% 5.9
 
 

GLS – 10″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
8.00 (203)

% Open Cv
100% 1015
90% 923
80% 819
70% 724
60% 604
50% 425
40% 191
30% 112
20% 70
10% 41

Trim Size (TN)
6.25 (159)

% Open Cv
100% 691
90% 623
80% 543
70% 469
60% 343
50% 189
40% 118
30% 78
20% 47
10% 29

Trim Size (TN)
5.00 (127)

% Open Cv
100% 479
90% 431
80% 376
70% 296
60% 211
50% 133
40% 65
30% 36
20% 18.9
10% 13.9

GLS – 12″

Control Valve
Unbalanced Trim
Flow Under the Plug
Equal Percentage

Trim Size (TN)
9.50 (241)

% Open Cv
100% 1407
90% 1287
80% 1138
70% 958
60% 764
50% 533
40% 268
30% 158
20% 99
10% 58

Trim Size (TN)
7.38 (187)

% Open Cv
100%  937
90% 860
80% 758
70% 638
60% 481
50% 268
40% 142
30% 97
20% 65
10% 44

Trim Size (TN)
6.25 (159)

% Open Cv
100% 752
90% 685
80% 614
70% 509
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28

Linear

GLS — 0.5″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
0.50 (13)

% Open Cv
100% 5.0
90% 4.9
80% 4.6
70% 4.3
60% 3.9
50% 3.5
40% 2.8
30% 2.2
20% 1.41
10% 0.67

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.5
90% 3.4
80% 3.2
70% 3.0
60% 2.6
50% 2.2
40% 1.72
30% 1.32
20% 0.85
10% 0.33

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.6
90% 2.4
80% 2.2
70% 2.1
60% 1.76
50% 1.49
40% 1.17
30% 0.90
20% 0.56
10% 0.28

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 1.72
90% 1.71
80% 1.65
70% 1.43
60% 1.27
50% 1.02
40% 0.82
30% 0.61
20% 0.38
10% 0.20

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 1.18
90% 1.15
80% 1.02
70% 0.94
60% 0.84
50% 0.72
40% 0.58
30% 0.45
20% 0.29
10% 0.169

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.42
90% 0.42
80% 0.40
70% 0.34
60% 0.29
50% 0.25
40% 0.192
30% 0.131
20% 0.087
10% 0.038

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 0.22
90% 0.195
80% 0.176
70% 0.156
60% 0.137
50% 0.117
40% 0.093
30% 0.070
20% 0.048
10% 0.030

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 0.140
90% 0.130
80% 0.120
70% 0.110
60% 0.095
50% 0.083
40% 0.071
30% 0.058
20% 0.045
10% 0.025

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 0.052
90% 0.044
80% 0.037
70% 0.030
60% 0.024
50% 0.018
40% 0.013
30% 0.006
20% 0.004
10% 0.001

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 0.014
90% 0.012
80% 0.010
70% 0.008
60% 0.006
50% 0.005
40% 0.003
30% 0.002
20% 0.001
10% 0.000
 
 

GLS — 0.75″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
0.71 (18)

% Open Cv
100% 9.5
90% 8.9
80% 7.5
70% 5.5
60% 3.2
50% 2.2
40% 1.38
30% 0.94
20% 0.67
10% 0.43

Trim Size (TN)
0.63 (16)

% Open Cv
100% 8.5
90% 8.4
80% 6.3
70% 4.3
60% 2.8
50% 1.78
40% 1.23
30% 0.75
20% 0.45
10% 0.27

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.1
90% 5.8
80% 4.7
70% 2.9
60% 1.87
50% 1.20
40% 0.77
30% 0.47
20% 0.30
10% 0.183

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.7
90% 2.4
80% 1.64
70% 1.10
60% 0.70
50% 0.45
40% 0.26
30% 0.181
20% 0.126
10% 0.081

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 2.7
90% 2.4
80% 1.64
70% 1.10
60% 0.70
50% 0.45
40% 0.26
30% 0.181
20% 0.126
10% 0.081

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 1.88
90% 1.80
80% 1.27
70% 0.83
60% 0.47
50% 0.31
40% 0.193
30% 0.124
20% 0.079
10% 0.051

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 1.18
90% 1.17
80% 0.76
70% 0.50
60% 0.32
50% 0.184
40% 0.112
30% 0.064
20% 0.035
10% 0.013

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 1.88
90% 1.80
80% 1.27
70% 0.83
60% 0.47
50% 0.31
40% 0.193
30% 0.124
20% 0.079
10% 0.051

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 1.18
90% 1.17
80% 0.76
70% 0.50
60% 0.32
50% 0.184
40% 0.112
30% 0.064
20% 0.035
10% 0.013

GLS – 1.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
0.81 (21)

% Open Cv
100% 13.5
90% 12.3
80% 9.3
70% 6.6
60% 4.1
50% 2.8
40% 1.87
30% 1.29
20% 0.95
10% 0.66

Trim Size (TN)
0.71 (18)

% Open Cv
100% 12.3
90% 11.4
80% 8.0
70% 5.6
60% 3.5
50% 2.3
40% 1.55
30% 1.04
20% 0.69
10% 0.46

Trim Size (TN)
0.63 (16)

% Open Cv
100% 9.8
90% 9.1
80% 6.1
70% 3.9
60% 2.5
50% 1.69
40% 1.11
30% 0.70
20% 0.45
10% 0.29

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.6
90% 5.9
80% 4.5
70% 2.7
60% 1.80
50% 1.19
40% 0.78
30% 0.47
20% 0.29
10% 0.195

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.9
90% 3.4
80% 2.3
70% 1.49
60% 0.98
50% 0.65
40% 0.43
30% 0.29
20% 0.193
10% 0.129

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.8
90% 2.4
80% 1.63
70% 1.08
60% 0.72
50% 0.48
40% 0.26
30% 0.179
20% 0.125
10% 0.080

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 1.18
90% 1.04
80% 0.73
70% 0.46
60% 0.31
50% 0.177
40% 0.116
30% 0.083
20% 0.048
10% 0.032

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.51
90% 0.50
80% 0.33
70% 0.194
60% 0.126
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 1.18
90% 1.04
80% 0.73
70% 0.46
60% 0.31
50% 0.177
40% 0.116
30% 0.083
20% 0.048
10% 0.032

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 0.51
90% 0.50
80% 0.33
70% 0.194
60% 0.126
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058
 
 

GLS – 1.5″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
1.25 (32)

% Open Cv
100% 31
90% 29
80% 25
70% 16.3
60% 11.0
50% 7.0
40% 4.5
30% 3.0
20% 1.91
10% 1.30

Trim Size (TN)
1.00 (25)

% Open Cv
100% 22
90% 22
80% 16.7
70% 10.9
60% 6.6
50% 4.5
40% 3.0
30% 1.90
20% 1.32
10% 0.91

Trim Size (TN)
0.81 (21)

% Open Cv
100% 15.8
90% 13.7
80% 9.4
70% 6.1
60% 4.5
50% 2.6
40% 1.58
30% 0.93
20% 0.59
10% 0.33

Trim Size (TN)
0.71 (18)

% Open Cv
100% 10.0
90% 8.2
80% 6.3
70% 5.3
60% 3.2
50% 1.91
40% 1.08
30% 0.77
20% 0.43
10% 0.27

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.0
90% 8.2
80% 6.3
70% 5.3
60% 3.2
50% 1.91
40% 1.08
30% 0.77
20% 0.43
10% 0.27

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.2
80% 1.95
70% 1.31
60% 1.26
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

GLS – 2.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
1.63 (41)

% Open Cv
100% 47
90% 45
80% 41
70% 30
60% 16.4
50% 10.6
40% 7.0
30% 4.6
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 30
90% 29
80% 24
70% 15.6
60% 10.1
50% 6.4
40% 4.3
30% 2.8
20% 1.86
10% 1.25

Trim Size (TN)
1.00 (25)

% Open Cv
100% 23
90% 22
80% 17.7
70% 11.4
60% 6.7
50% 4.6
40% 3.0
30% 1.89
20% 1.27
10% 0.88

Trim Size (TN)
0.81 (21)

% Open Cv
100% 17.5
90% 17.1
80% 12.5
70% 7.9
60% 5.1
50% 3.3
40% 2.1
30% 1.35
20% 0.93
10% 0.61

Trim Size (TN)
0.71 (18)

% Open Cv
100% 10.1
90% 9.1
80% 6.7
70% 4.5
60% 2.7
50% 1.80
40% 1.16
30% 0.74
20% 0.44
10% 0.28

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.1
90% 9.1
80% 6.7
70% 4.5
60% 2.7
50% 1.80
40% 1.16
30% 0.74
20% 0.44
10% 0.28

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.1
90% 2.9
80% 2.6
70% 1.95
60% 1.24
50% 0.81
40% 0.50
30% 0.33
20% 0.21
10% 0.147
 
 

GLS – 3.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
2.63 (67)

% Open Cv
100% 109
90% 102
80% 93
70% 89
60% 72
50% 36
40% 21
30% 12.9
20% 7.9
10% 4.5

Trim Size (TN)
2.00 (51)

% Open Cv
100% 83
90% 78
80% 72
70% 64
60% 44
50% 25
40% 13.8
30% 8.8
20% 5.3
10% 3.3

Trim Size (TN)
1.63 (41)

% Open Cv
100% 48
90% 46
80% 41
70% 27
60% 17.0
50% 11.2
40% 7.2
30% 4.7
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 32
90% 31
80% 25
70% 16.3
60% 10.6
50% 7.0
40% 4.5
30% 2.9
20% 1.90
10% 1.29
 
 

GLS – 4.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
3.50 (89)

% Open Cv
100%  196
90% 184
80% 169
70% 157
60% 115
50% 57
40% 36
30% 24
20% 15.4
10% 10.7

Trim Size (TN)
2.63 (67)

% Open Cv
100% 132
90% 122
80% 110
70% 99
60% 66
50% 42
40% 27
30% 17.2
20% 10.3
10% 6.7

Trim Size (TN)
2.25 (57)

% Open Cv
100% 97
90% 89
80% 80
70% 66
60% 41
50% 26
40% 16.3
30% 10.3
20% 6.2
10% 4.2

Trim Size (TN)
1.63 (41)

% Open Cv
100% 57
90% 53
80% 43
70% 28
60% 17.6
50% 11.5
40% 7.5
30% 4.9
20% 3.2
10% 2.2
 
 

GLS – 6.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
5.00 (187)

% Open Cv
100% 401
90% 374
80% 340
70% 298
60% 250
50% 148
40% 62
30% 35
20% 18.3
10% 13.7

Trim Size (TN)
3.50 (89)

% Open Cv
100% 225
90% 203
80% 177
70% 153
60% 115
50% 65
40% 41
30% 26
20% 16.5
10% 10.8

Trim Size (TN)
3.00 (76)

% Open Cv
100% 169
90% 152
80% 133
70% 114
60% 73
50% 37
40% 25
30% 16.9
20% 10.9
10% 7.8

Trim Size (TN)
2.63 (67)

% Open Cv
100% 129
90% 118
80% 105
70% 92
60% 67
50% 37
40% 23
30% 14.8
20% 8.8
10% 5.5
 
 

GLS – 8.0″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
6.25 (159)

% Open Cv
100% 693
90% 645
80% 591
70% 498
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28

Trim Size (TN)
5.00 (127)

% Open Cv
100% 462
90% 429
80% 370
70% 291
60% 202
50% 125
40% 59
30% 33
20% 20
10% 14.0

Trim Size (TN)
3.50 (89)

% Open Cv
100% 244
90% 219
80% 195
70% 160
60% 114
50% 65
40% 41
30% 26
20% 15.9
10% 11.0

Trim Size (TN)
2.63 (67)

% Open Cv
100% 141
90% 130
80% 115
70% 99
60% 67
50% 36
40% 23
30% 14.8
20% 8.6
10% 5.9
 
 

GLS – 10″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
8.00 (203)

% Open Cv
100% 1015
90% 923
80% 819
70% 724
60% 604
50% 425
40% 191
30% 112
20% 70
10% 41

Trim Size (TN)
6.25 (159)

% Open Cv
100% 691
90% 623
80% 543
70% 469
60% 343
50% 189
40% 118
30% 78
20% 47
10% 29

Trim Size (TN)
5.00 (127)

% Open Cv
100% 479
90% 431
80% 376
70% 296
60% 211
50% 133
40% 65
30% 36
20% 18.9
10% 13.9

GLS – 12″

Control Valve
Unbalanced Trim
Flow Over the Plug
Linear

Trim Size (TN)
9.50 (241)

% Open Cv
100% 1407
90% 1287
80% 1138
70% 958
60% 764
50% 533
40% 268
30% 158
20% 99
10% 58

Trim Size (TN)
7.38 (187)

% Open Cv
100%  937
90% 860
80% 758
70% 638
60% 481
50% 268
40% 142
30% 97
20% 65
10% 44

Trim Size (TN)
6.25 (159)

% Open Cv
100% 752
90% 685
80% 614
70% 509
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28

GLS — 0.5″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
0.50 (13)

% Open Cv
100% 5.0
90% 4.9
80% 4.6
70% 4.3
60% 3.9
50% 3.5
40% 2.8
30% 2.2
20% 1.41
10% 0.67

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.5
90% 3.4
80% 3.2
70% 3.0
60% 2.6
50% 2.2
40% 1.72
30% 1.32
20% 0.85
10% 0.33

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.6
90% 2.4
80% 2.2
70% 2.1
60% 1.76
50% 1.49
40% 1.17
30% 0.90
20% 0.56
10% 0.28

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 1.72
90% 1.71
80% 1.65
70% 1.43
60% 1.27
50% 1.02
40% 0.82
30% 0.61
20% 0.38
10% 0.20

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 1.18
90% 1.15
80% 1.02
70% 0.94
60% 0.84
50% 0.72
40% 0.58
30% 0.45
20% 0.29
10% 0.169

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.42
90% 0.42
80% 0.40
70% 0.34
60% 0.29
50% 0.25
40% 0.192
30% 0.131
20% 0.087
10% 0.038

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 0.22
90% 0.195
80% 0.176
70% 0.156
60% 0.137
50% 0.117
40% 0.093
30% 0.070
20% 0.048
10% 0.030

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 0.140
90% 0.130
80% 0.120
70% 0.110
60% 0.095
50% 0.083
40% 0.071
30% 0.058
20% 0.045
10% 0.025

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 0.052
90% 0.044
80% 0.037
70% 0.030
60% 0.024
50% 0.018
40% 0.013
30% 0.006
20% 0.004
10% 0.001

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 0.014
90% 0.012
80% 0.010
70% 0.008
60% 0.006
50% 0.005
40% 0.003
30% 0.002
20% 0.001
10% 0.000
 
 

GLS — 0.75″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
0.71 (18)

% Open Cv
100% 9.5
90% 8.9
80% 7.5
70% 5.5
60% 3.2
50% 2.2
40% 1.38
30% 0.94
20% 0.67
10% 0.43

Trim Size (TN)
0.63 (16)

% Open Cv
100% 8.5
90% 8.4
80% 6.3
70% 4.3
60% 2.8
50% 1.78
40% 1.23
30% 0.75
20% 0.45
10% 0.27

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.1
90% 5.8
80% 4.7
70% 2.9
60% 1.87
50% 1.20
40% 0.77
30% 0.47
20% 0.30
10% 0.183

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.7
90% 2.4
80% 1.64
70% 1.10
60% 0.70
50% 0.45
40% 0.26
30% 0.181
20% 0.126
10% 0.081

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 2.7
90% 2.4
80% 1.64
70% 1.10
60% 0.70
50% 0.45
40% 0.26
30% 0.181
20% 0.126
10% 0.081

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 1.88
90% 1.80
80% 1.27
70% 0.83
60% 0.47
50% 0.31
40% 0.193
30% 0.124
20% 0.079
10% 0.051

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 1.18
90% 1.17
80% 0.76
70% 0.50
60% 0.32
50% 0.184
40% 0.112
30% 0.064
20% 0.035
10% 0.013

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 3.7
90% 3.4
80% 2.7
70% 1.72
60% 1.10
50% 0.70
40% 0.42
30% 0.27
20% 0.160
10% 0.096

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 1.88
90% 1.80
80% 1.27
70% 0.83
60% 0.47
50% 0.31
40% 0.193
30% 0.124
20% 0.079
10% 0.051

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 1.18
90% 1.17
80% 0.76
70% 0.50
60% 0.32
50% 0.184
40% 0.112
30% 0.064
20% 0.035
10% 0.013

GLS – 1.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
0.81 (21)

% Open Cv
100% 13.5
90% 12.3
80% 9.3
70% 6.6
60% 4.1
50% 2.8
40% 1.87
30% 1.29
20% 0.95
10% 0.66

Trim Size (TN)
0.71 (18)

% Open Cv
100% 12.3
90% 11.4
80% 8.0
70% 5.6
60% 3.5
50% 2.3
40% 1.55
30% 1.04
20% 0.69
10% 0.46

Trim Size (TN)
0.63 (16)

% Open Cv
100% 9.8
90% 9.1
80% 6.1
70% 3.9
60% 2.5
50% 1.69
40% 1.11
30% 0.70
20% 0.45
10% 0.29

Trim Size (TN)
0.50 (13)

% Open Cv
100% 6.6
90% 5.9
80% 4.5
70% 2.7
60% 1.80
50% 1.19
40% 0.78
30% 0.47
20% 0.29
10% 0.195

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.9
90% 3.4
80% 2.3
70% 1.49
60% 0.98
50% 0.65
40% 0.43
30% 0.29
20% 0.193
10% 0.129

Trim Size (TN)
0.31 (8)

% Open Cv
100% 2.8
90% 2.4
80% 1.63
70% 1.08
60% 0.72
50% 0.48
40% 0.26
30% 0.179
20% 0.125
10% 0.080

Trim Size (TN)
0.25-15 (6.5-15)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058

Trim Size (TN)
0.25-18 (6.5-18)

% Open Cv
100% 1.18
90% 1.04
80% 0.73
70% 0.46
60% 0.31
50% 0.177
40% 0.116
30% 0.083
20% 0.048
10% 0.032

Trim Size (TN)
0.12-00 (3.2-00)

% Open Cv
100% 0.51
90% 0.50
80% 0.33
70% 0.194
60% 0.126
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

Trim Size (TN)
0.12-03 (3.2-03)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058

Trim Size (TN)
0.12-06 (3.2-06)

% Open Cv
100% 1.18
90% 1.04
80% 0.73
70% 0.46
60% 0.31
50% 0.177
40% 0.116
30% 0.083
20% 0.048
10% 0.032

Trim Size (TN)
0.12-09 (3.2-09)

% Open Cv
100% 0.51
90% 0.50
80% 0.33
70% 0.194
60% 0.126
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

Trim Size (TN)
0.12-12 (3.2-12)

% Open Cv
100% 1.80
90% 1.58
80% 1.13
70% 0.70
60% 0.46
50% 0.29
40% 0.186
30% 0.137
20% 0.082
10% 0.058
 
 

GLS – 1.5″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
1.25 (32)

% Open Cv
100% 31
90% 29
80% 25
70% 16.3
60% 11.0
50% 7.0
40% 4.5
30% 3.0
20% 1.91
10% 1.30

Trim Size (TN)
1.00 (25)

% Open Cv
100% 22
90% 22
80% 16.7
70% 10.9
60% 6.6
50% 4.5
40% 3.0
30% 1.90
20% 1.32
10% 0.91

Trim Size (TN)
0.81 (21)

% Open Cv
100% 15.8
90% 13.7
80% 9.4
70% 6.1
60% 4.5
50% 2.6
40% 1.58
30% 0.93
20% 0.59
10% 0.33

Trim Size (TN)
0.71 (18)

% Open Cv
100% 10.0
90% 8.2
80% 6.3
70% 5.3
60% 3.2
50% 1.91
40% 1.08
30% 0.77
20% 0.43
10% 0.27

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.0
90% 8.2
80% 6.3
70% 5.3
60% 3.2
50% 1.91
40% 1.08
30% 0.77
20% 0.43
10% 0.27

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.7
90% 3.2
80% 1.95
70% 1.31
60% 1.26
50% 0.085
40% 0.061
30% 0.040
20% 0.025
10% 0.014

GLS – 2.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
1.63 (41)

% Open Cv
100% 47
90% 45
80% 41
70% 30
60% 16.4
50% 10.6
40% 7.0
30% 4.6
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 30
90% 29
80% 24
70% 15.6
60% 10.1
50% 6.4
40% 4.3
30% 2.8
20% 1.86
10% 1.25

Trim Size (TN)
1.00 (25)

% Open Cv
100% 23
90% 22
80% 17.7
70% 11.4
60% 6.7
50% 4.6
40% 3.0
30% 1.89
20% 1.27
10% 0.88

Trim Size (TN)
0.81 (21)

% Open Cv
100% 17.5
90% 17.1
80% 12.5
70% 7.9
60% 5.1
50% 3.3
40% 2.1
30% 1.35
20% 0.93
10% 0.61

Trim Size (TN)
0.71 (18)

% Open Cv
100% 10.1
90% 9.1
80% 6.7
70% 4.5
60% 2.7
50% 1.80
40% 1.16
30% 0.74
20% 0.44
10% 0.28

Trim Size (TN)
0.63 (16)

% Open Cv
100% 10.1
90% 9.1
80% 6.7
70% 4.5
60% 2.7
50% 1.80
40% 1.16
30% 0.74
20% 0.44
10% 0.28

Trim Size (TN)
0.38 (10)

% Open Cv
100% 3.1
90% 2.9
80% 2.6
70% 1.95
60% 1.24
50% 0.81
40% 0.50
30% 0.33
20% 0.21
10% 0.147
 
 

GLS – 3.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
2.63 (67)

% Open Cv
100% 109
90% 102
80% 93
70% 89
60% 72
50% 36
40% 21
30% 12.9
20% 7.9
10% 4.5

Trim Size (TN)
2.00 (51)

% Open Cv
100% 83
90% 78
80% 72
70% 64
60% 44
50% 25
40% 13.8
30% 8.8
20% 5.3
10% 3.3

Trim Size (TN)
1.63 (41)

% Open Cv
100% 48
90% 46
80% 41
70% 27
60% 17.0
50% 11.2
40% 7.2
30% 4.7
20% 3.1
10% 2.2

Trim Size (TN)
1.25 (32)

% Open Cv
100% 32
90% 31
80% 25
70% 16.3
60% 10.6
50% 7.0
40% 4.5
30% 2.9
20% 1.90
10% 1.29
 
 

GLS – 4.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
3.50 (89)

% Open Cv
100%  196
90% 184
80% 169
70% 157
60% 115
50% 57
40% 36
30% 24
20% 15.4
10% 10.7

Trim Size (TN)
2.63 (67)

% Open Cv
100% 132
90% 122
80% 110
70% 99
60% 66
50% 42
40% 27
30% 17.2
20% 10.3
10% 6.7

Trim Size (TN)
2.25 (57)

% Open Cv
100% 97
90% 89
80% 80
70% 66
60% 41
50% 26
40% 16.3
30% 10.3
20% 6.2
10% 4.2

Trim Size (TN)
1.63 (41)

% Open Cv
100% 57
90% 53
80% 43
70% 28
60% 17.6
50% 11.5
40% 7.5
30% 4.9
20% 3.2
10% 2.2
 
 

GLS – 6.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
5.00 (187)

% Open Cv
100% 401
90% 374
80% 340
70% 298
60% 250
50% 148
40% 62
30% 35
20% 18.3
10% 13.7

Trim Size (TN)
3.50 (89)

% Open Cv
100% 225
90% 203
80% 177
70% 153
60% 115
50% 65
40% 41
30% 26
20% 16.5
10% 10.8

Trim Size (TN)
3.00 (76)

% Open Cv
100% 169
90% 152
80% 133
70% 114
60% 73
50% 37
40% 25
30% 16.9
20% 10.9
10% 7.8

Trim Size (TN)
2.63 (67)

% Open Cv
100% 129
90% 118
80% 105
70% 92
60% 67
50% 37
40% 23
30% 14.8
20% 8.8
10% 5.5
 
 

GLS – 8.0″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
6.25 (159)

% Open Cv
100% 693
90% 645
80% 591
70% 498
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28

Trim Size (TN)
5.00 (127)

% Open Cv
100% 462
90% 429
80% 370
70% 291
60% 202
50% 125
40% 59
30% 33
20% 20
10% 14.0

Trim Size (TN)
3.50 (89)

% Open Cv
100% 244
90% 219
80% 195
70% 160
60% 114
50% 65
40% 41
30% 26
20% 15.9
10% 11.0

Trim Size (TN)
2.63 (67)

% Open Cv
100% 141
90% 130
80% 115
70% 99
60% 67
50% 36
40% 23
30% 14.8
20% 8.6
10% 5.9
 
 

GLS – 10″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
8.00 (203)

% Open Cv
100% 1015
90% 923
80% 819
70% 724
60% 604
50% 425
40% 191
30% 112
20% 70
10% 41

Trim Size (TN)
6.25 (159)

% Open Cv
100% 691
90% 623
80% 543
70% 469
60% 343
50% 189
40% 118
30% 78
20% 47
10% 29

Trim Size (TN)
5.00 (127)

% Open Cv
100% 479
90% 431
80% 376
70% 296
60% 211
50% 133
40% 65
30% 36
20% 18.9
10% 13.9

GLS – 12″

Control Valve
Unbalanced Trim
Flow Under the Plug
Linear

Trim Size (TN)
9.50 (241)

% Open Cv
100% 1407
90% 1287
80% 1138
70% 958
60% 764
50% 533
40% 268
30% 158
20% 99
10% 58

Trim Size (TN)
7.38 (187)

% Open Cv
100%  937
90% 860
80% 758
70% 638
60% 481
50% 268
40% 142
30% 97
20% 65
10% 44

Trim Size (TN)
6.25 (159)

% Open Cv
100% 752
90% 685
80% 614
70% 509
60% 335
50% 185
40% 115
30% 76
20% 46
10% 28