Data Sheet
V500 Valve
D100054X012
Product Bulletin
51.3:V500
May 2012
17
Table 14. Fisher V500, Forward Flow, Level 1, 2, and 3 Trims Reduced Port
Coefficients
Valve
Size,
NPS
Valve Rotation, Degrees
Modified Linear
Characteristic
10 20 30 40 50 60 70 80 90
C
v
1
0.777 2.09 3.02 3.62 4.53 4.90 4.93 4.96 5.01
K
v
0.672 1.81 2.61 3.13 3.92 4.24 4.26 4.29 4.33
F
d
(1)
0.54 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.89 0.89 0.88 0.85 0.82 0.79 0.75 0.74 0.74
X
T
0.487 0.391 0.497 0.597 0.508 0.439 0.436 0.429 0.419
C
v
1-1/2
0.632 2.56 4.47 7.15 9.62 10.7 10.8 10.9 10.9
K
v
.547 2.21 3.87 6.18 8.32 9.26 9.34 9.43 9.43
F
d
(1)
0.53 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.84 0.84 0.84 0.82 0.79 0.75 0.73 0.73 0.73
X
T
0.559 0.397 0.522 0.574 0.585 0.508 0.497 0.490 0.490
C
v
2
1.30 3.49 5.31 9.64 15.1 17.3 17.3 17.3 17.3
K
v
1.12 3.02 4.59 8.34 13.1 15.0 15.0 15.0 15.0
F
d
(1)
0.54 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.85 0.85 0.84 0.84 0.82 0.79 0.79 0.79 0.79
X
T
0.391 0.336 0.452 0.563 0.529 0.462 0.462 0.462 0.462
C
v
3
6.78 11.5 16.0 26.7 40.2 47.7 48.4 48.4 48.4
K
v
5.86 9.95 13.8 23.1 34.8 41.3 41.9 41.9 41.9
F
d
(1)
0.53 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.90 0.88 0.87 0.86 0.85 0.82 0.77 0.77 0.77
X
T
0.487 0.501 0.487 0.429 0.459 0.429 0.429 0.429 0.429
C
v
4
10.0 18.2 24.4 43.7 69.2 90.6 98.2 98.2 98.2
K
v
8.65 15.7 21.1 37.8 59.9 78.4 84.9 84.9 84.9
F
d
(1)
0.52 0.65 0.74 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.95 0.89 0.85 0.84 0.84 0.81 0.77 0.77 0.77
X
T
0.426 0.459 0.570 0.504 0.487 0.462 0.426 0.426 0.426
C
v
6
9.50 26.6 41.8 76.0 129 170 200 200 200
K
v
8.22 23.0 36.2 65.7 112 147 173 173 173
F
d
(1)
0.52 0.65 0.74 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.97 0.96 0.92 0.86 0.80 0.76 0.74 0.74 0.74
X
T
0.995 0.351 0.403 0.487 0.416 0.462 0.410 0.410 0.410
C
v
8
39.9 87.8 155 241 343 448 541 606 623
K
v
34.5 75.9 134 208 297 388 468 524 539
F
d
(2)
0.48 0.63 0.73 0.81 0.87 0.92 0.96 0.99 1.00
F
L
0.96 0.81 0.80 0.79 0.78 0.76 0.74 0.72 0.70
X
T
0.400 0.446 0.459 0.449 0.429 0.413 0.413 0.413 0.391
1. Measured at 60% Port.
2. Measured at 40% Port.