Data Sheet

GX Control Valve and Actuator
D103171X012
Product Bulletin
51.1:GX
March 2012
30
Table 24. Fisher GX, Equal Percentage Valve Plug, Flow Up Through the Port (continued)
Equal Percentage - Flow Up
Equal Percentage
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
13.8 25.0 40.0 60.0 90.0 139 201 271 344 401 0.88
K
v
11.9 21.6 34.6 51.9 77.9 120 174 234 298 347 ---
X
T
0.73 0.82 0.82 0.81 0.79 0.70 0.67 0.67 0.54 0.71 ---
F
d
0.45 0.39 0.33 0.28 0.24 0.22 0.20 0.18 0.17 0.16 ---
136
(3)
60
C
v
19.5 35.0 49.0 65.0 92.0 133 194 252 322 374 0.90
K
v
16.9 30.3 42.4 56.2 79.6 115 168 218 279 324 ---
X
T
0.58 0.51 0.55 0.56 0.58 0.55 0.53 0.66 0.72 0.76 ---
F
d
0.09 0.10 0.11 0.13 0.16 0.19 0.22 0.27 0.32 0.37 ---
90
(2)
40
C
v
7.90 16.0 23.0 33.0 45.0 60.0 81.0 126 159 192 0.95
K
v
6.83 13.8 19.9 28.5 38.9 51.9 70.1 109 138 166 ---
X
T
0.68 0.80 0.85 0.77 0.78 0.78 0.83 0.70 0.76 0.75 ---
F
d
0.39 0.49 0.52 0.48 0.45 0.44 0.33 0.36 0.39 0.41 ---
1. At 100% travel.
2. Restricted trim.
3. Balanced trim.
4. Balanced, restricted trim.