Data Sheet
V500 Valve
D100054X012
Product Bulletin
51.3:V500
May 2012
22
Table 19. Fisher V500 Reverse Flow, Level 4 Trim Reduced Port
Coefficients
Valve
Size,
NPS
Valve Rotation, Degrees
Modified Linear
Characteristic
10 20 30 40 50 60 70 80 90
C
v
1
1.90 3.80 4.85 5.82 5.90 5.90 5.90 5.90 5.90
K
v
1.63 3.27 4.17 5.01 5.07 5.07 5.07 5.07 5.07
F
d
(1)
0.54 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.56 0.67 0.68 0.69 0.73 0.75 0.75 0.75 0.75
X
T
0.312 0.386 0.427 0.409 0.448 0.448 0.448 0.448 0.448
C
v
1-1/2
1.95 4.45 5.75 7.75 11.4 11.8 11.8 11.8 11.8
K
v
1.68 3.83 4.95 6.67 9.80 10.2 10.2 10.2 10.2
F
d
(1)
0.53 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.83 0.77 0.78 0.76 0.68 0.72 0.73 0.73 0.73
X
T
0.395 0.415 0.527 0.519 0.421 0.459 0.459 0.459 0.459
C
v
2
2.70 4.65 6.30 11.1 18.3 19.8 20.2 20.4 21.0
K
v
2.32 4.00 5.42 9.55 15.7 17.0 17.4 17.5 18.1
F
d
(1)
0.54 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.91 0.89 0.84 0.71 0.58 0.61 0.62 0.62 0.60
X
T
0.459 0.464 0.594 0.453 0.307 0.358 0.366 0.337 0.328
C
v
3
4.41 9.60 13.7 19.5 37.3 53.3 56.7 57.9 57.9
K
v
3.81 8.30 11.9 16.9 32.3 46.1 49.0 50.1 50.1
F
d
(1)
0.53 0.66 0.75 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.96 0.93 0.93 0.87 0.73 0.64 0.62 0.62 0.63
X
T
0.469 0.578 0.578 0.537 0.319 0.258 0.265 0.268 0.268
C
v
4
9.78 11.1 19.4 32.1 49.7 67.8 80.5 84.6 86.6
K
v
8.46 9.60 16.8 27.8 43.0 58.6 69.6 73.2 74.9
F
d
(1)
0.52 0.65 0.74 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.93 0.93 0.89 0.84 0.79 0.72 0.64 0.65 0.65
X
T
0.620 0.620 0.593 0.605 0.570 0.522 0.476 0.459 0.436
C
v
6
10.6 30.0 43.4 77.1 122 168 198 223 226
K
v
9.17 26.0 37.5 66.7 106 145 171 193 195
F
d
(1)
0.52 0.65 0.74 0.82 0.88 0.92 0.96 0.99 1.00
F
L
0.77 0.79 0.77 0.75 0.69 0.64 0.63 0.58 0.58
X
T
0.640 0.369 0.476 0.410 0.381 0.357 0.336 0.284 0.278
C
v
8
19.8 55.8 125 222 323 413 488 549 569
K
v
17.1 48.3 108 192 279 357 422 475 492
F
d
(2)
0.48 0.63 0.73 0.81 0.87 0.92 0.96 0.99 1.00
F
L
0.75 0.77 0.78 0.75 0.70 0.68 0.70 0.68 0.70
X
T
0.459 0.581 0.462 0.394 0.375 0.381 0.391 0.391 0.391
1. Measured at 60% Port.
2. Measured at 40% Port.