Data Sheet
GX Control Valve and Actuator
D103171X012
Product Bulletin
51.1:GX
March 2012
33
Table 25. Fisher GX, Linear Valve Plug, Flow Up Through the Port (continued)
Linear - Flow Up
Linear
Characteristic
Valve
Size
Port
Diameter
Maximum
Travel
Flow
Coeffi-
cient
Valve Opening–Percent of Total Travel
F
L
(1)
mm mm 10 20 30 40 50 60 70 80 90 100
DN 50
(NPS 2)
46 20
C
v
2.90 7.53 12.6 17.5 22.1 27.8 34.1 41.6 45.7 48.6 0.91
K
v
2.51 6.51 10.9 15.1 19.1 24.0 29.5 36.0 39.5 42.0
---
X
T
0.71 0.87 0.81 0.87 0.85 0.82 0.79 0.82 0.85 0.84 ---
F
d
0.25 0.36 0.42 0.46 0.47 0.46 0.46 0.47 0.48 0.50 ---
36 20
C
v
1.69 5.05 8.37 11.6 14.8 17.9 20.9 24.7 29.2 33.9 0.93
K
v
1.47 4.37 7.24 10.0 12.8 15.5 18.0 21.3 25.3 29.3
---
X
T
0.73 0.76 0.84 0.81 0.82 0.84 0.87 0.85 0.84 0.82 ---
F
d
0.30 0.42 0.47 0.49 0.51 0.52 0.50 0.48 0.47 0.48 ---
22 20
C
v
1.58 3.01 4.51 6.02 7.63 9.10 10.9 13.1 15.1 17.2 0.93
K
v
1.37 2.60 3.90 5.21 6.60 7.87 9.40 11.3 13.0 14.9
---
X
T
0.66 0.62 0.62 0.61 0.61 0.60 0.58 0.55 0.62 0.68 ---
F
d
0.08 0.10 0.13 0.15 0.17 0.19 0.22 0.24 0.26 0.28 ---
DN 80
(NPS 3)
70 40
C
v
9.74 20.9 32.9 46.2 59.6 74.3 87.5 97.2 109 117 0.89
K
v
8.43 18.1 28.5 40.0 51.6 64.3 75.7 84.1 94.3 101
---
X
T
0.62 0.85 0.83 0.81 0.81 0.81 0.81 0.85 0.80 0.77 ---
F
d
0.33 0.43 0.47 0.48 0.49 0.50 0.50 0.51 0.51 0.51 ---
70
(2)
20
C
v
10.6 21.3 31.9 42.7 53.6 63.8 74.1 85.0 94.4 102 0.85
K
v
9.17 18.4 27.6 36.9 46.4 55.2 64.1 73.5 81.7 88.2
---
X
T
0.67 0.68 0.66 0.65 0.64 0.67 0.66 0.63 0.63 0.65 ---
F
d
0.12 0.17 0.21 0.25 0.28 0.31 0.34 0.36 0.39 0.41 ---
46 20
C
v
2.09 7.74 12.0 16.5 21.2 26.6 33.0 40.6 46.5 51.8 0.97
K
v
1.81 6.70 10.4 14.3 18.3 23.0 28.5 35.1 40.2 44.8
---
X
T
0.65 0.62 0.79 0.85 0.88 0.85 0.88 0.83 0.88 0.90 ---
F
d
0.25 0.36 0.42 0.46 0.47 0.46 0.46 0.47 0.48 0.50 ---
36 20
C
v
1.17 4.87 7.76 11.1 14.3 17.3 19.3 23.2 27.8 33.3 0.97
K
v
1.01 4.21 6.71 9.58 12.4 14.9 16.7 20.1 24.1 28.8
---
X
T
0.74 0.59 0.81 0.80 0.82 0.83 0.94 0.96 0.93 0.87 ---
F
d
0.30 0.42 0.47 0.49 0.51 0.52 0.50 0.48 0.47 0.48 ---
DN 100
(NPS 4)
90 40
C
v
18.2 39.6 59.0 82.4 10 4 124 141 156 171 184 0.91
K
v
15.8 34.3 51.0 71.3 90.0 108 122 135 147 159
---
X
T
0.78 0.84 0.90 0.85 0.86 0.91 0.91 0.90 0.85 0.82 ---
F
d
0.26 0.36 0.41 0.43 0.45 0.46 0.47 0.48 0.48 0.48 ---
90
(2)
20
C
v
12.3 28.5 44.6 60.2 77.6 95.4 112 130 143 151 0.82
K
v
10.6 24.7 38.6 52.1 67.1 82.5 96.9 112 124 131
---
X
T
0.71 0.65 0.58 0.67 0.59 0.57 0.58 0.61 0.59 0.64 ---
F
d
0.11 0.16 0.20 0.23 0.27 0.29 0.31 0.34 0.36 0.39 ---
90
(3)
20
C
v
5.99 13.6 22.3 31.5 40.4 49.6 59.2 69.0 79.6 92.3 0.82
K
v
5.18 11.8 19.3 27.2 34.9 42.9 51.2 59.7 68.9 79.8
---
X
T
0.60 0.59 0.61 0.58 0.59 0.62 0.59 0.58 0.57 0.52 ---
F
d
0.07 0.11 0.14 0.16 0.18 0.20 0.22 0.24 0.25 0.27 ---
70 40
C
v
9.04 22.1 33.8 47.0 60.8 76.9 92.0 107 119 128 0.94
K
v
7.82 19.1 29.2 40.7 52.6 66.5 79.6 92.6 103 111
---
X
T
0.80 0.82 0.84 0.83 0.81 0.80 0.79 0.81 0.81 0.82 ---
F
d
0.33 0.43 0.47 0.48 0.49 0.50 0.50 0.51 0.51 0.51 ---
46 20
C
v
2.37 7.98 13.1 17.3 21.9 27.1 33.2 40.3 46.8 52.2 0.96
K
v
2.05 6.90 11.3 15.0 19.0 23.5 28.7 34.8 40.5 45.2
---
X
T
0.70 0.70 0.78 0.88 0.90 0.88 0.85 0.83 0.83 0.83 ---
F
d
0.25 0.36 0.42 0.46 0.47 0.46 0.46 0.47 0.48 0.50 ---
1. At 100% travel.
2. Balanced trim.
3. Balanced, restricted trim.
4. Micro-Flow trim.
-continued-