Data Sheet
GX Control Valve and Actuator
D103171X012
Product Bulletin
51.1:GX
March 2012
34
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
150
(NPS 6)
136 60
C
v
48.9 83.0 114 144 179 212 248 308 370 413 0.87
K
v
42.3 71.8 98.6 125 155 183 215 266 320 357
---
X
T
0.69 0.79 0.82 0.81 0.70 0.70 0.71 0.65 0.65 0.70 ---
F
d
0.29 0.27 0.24 0.22 0.20 0.19 0.17 0.16 0.15 0.14 ---
136
(2)
60
C
v
59.0 105 153 203 249 301 334 362 375 391 0.90
K
v
51.0 90.8 132 176 215 260 289 313 324 338
---
X
T
0.55 0.64 0.63 0.63 0.65 0.66 0.72 0.72 0.78 0.80 ---
F
d
0.13 0.19 0.23 0.27 0.32 0.36 0.40 0.43 0.47 0.50 ---
90
(3)
40
C
v
22.1 46.0 65.0 88.0 111 136 160 187 209 233 0.91
K
v
19.1 39.8 56.2 76.1 96.0 118 138 162 181 202
---
X
T
0.67 0.72 0.85 0.84 0.85 0.84 0.85 0.81 0.82 0.83 ---
F
d
0.26 0.36 0.41 0.43 0.45 0.46 0.47 0.48 0.48 0.48 ---
1. At 100% travel.
2. Balanced trim.
3. Restricted trim.
4. Micro-Flow trim.
Table 26. Fisher GX, Whisper Trim III, Flow Up Through the Port
Whisper Trim III- 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 80
(NPS 3)
Level A1
70 40
C
v
2.2 11.2 22.4 31.6 40.4 51.2 60.2 68.5 76.9 85.5 0.818
K
v
1.9 9.7 19.4 27.3 34.9 44.3 52.1 59.3 66.5 74.0
---
X
T
0.861 0.714 0.584 0.600 0.589 0.572 0.590 0.616 0.637 0.646 ---
F
d
0.431 0.176 0.131 0.110 0.096 0.085 0.078 0.072 0.067 0.063 ---
DN 100
(NPS 4)
Level A1
90 40
C
v
2.6 14.0 29.1 41.5 53.6 67.9 81.3 93.8 107 119 0.785
K
v
2.2 12.1 25.2 35.9 46.4 58.7 70.3 81.1 92.6 103
---
X
T
0.870 0.726 0.573 0.561 0.558 0.533 0.537 0.548 0.581 0.602 ---
F
d
0.379 0.155 0.115 0.097 0.084 0.075 0.069 0.063 0.059 0.055 ---
70
(2)
40
C
v
2.2 11.2 22.4 31.6 40.4 51.2 60.2 68.5 76.9 85.5 0.818
K
v
1.9 9.7 19.4 27.3 34.9 44.3 52.1 59.3 66.5 74.0
---
X
T
0.861 0.714 0.584 0.600 0.589 0.572 0.590 0.616 0.637 0.646 ---
F
d
0.431 0.176 0.131 0.110 0.096 0.085 0.078 0.072 0.067 0.063 ---
DN 150
(NPS 6)
Level A1
136 60
C
v
53.8 89 124 166 201 233 263 296 315 324 0.809
K
v
46.5 77 107 144 174 202 227 256 272 280
---
X
T
0.540 0.559 0.557 0.517 0.534 0.550 0.566 0.564 0.594 0.659 ---
F
d
0.134 0.087 0.070 0.060 0.053 0.048 0.044 0.041 0.039 0.037 ---
90
(2)
40
C
v
2.6 14.0 29.1 41.5 53.6 67.9 81.3 93.8 107 119 0.785
K
v
2.2 12.1 25.2 35.9 46.4 58.7 70.3 81.1 92.6 103
---
X
T
0.870 0.726 0.573 0.561 0.558 0.533 0.537 0.548 0.581 0.602 ---
F
d
0.379 0.155 0.115 0.097 0.084 0.075 0.069 0.063 0.059 0.055 ---
1. At 100% travel.
2. Unbalanced, restricted trim.