Technical Specifications

14 | GE Oil & Gas
C
v
and F
L
versus Travel
Contoured Trim
Direction: FLOW-TO-OPEN (FTO)
Flow Characteristic: MODIFIED PERCENT
Rating: ASME 2500 (PN 420)
Percent of Travel 10 20 30 40 50 60 70 80 90 100
FL 0.93 0.93 0.93 0.93 0.93 0.92 0.92 0.91 0.91 0.90
Valve Size
ASME
Rating
Orifice
Diameter
Travel
Rated Cv
Inch mm Inch mm Inch mm
0.75 20 2500
0.25 6.4 0.8 20.3 0.04 0.07 0.14 0.28 0.5 0.73 0.99 1.28 1.52 1.7
0.375 9.5 0.8 20.3 0.09 0.15 0.31 0.64 1.13 1.64 2.22 2.86 3.4 3.8
0.5 12.7 0.8 20.3 0.14 0.24 0.49 1 1.78 2.59 3.5 4.5 5.38 6
0.812 20.6 0.8 20.3 0.21 0.49 0.87 2.17 3.65 5.19 6.4 7.23 7.71 8
1 25 2500
0.25 6.4 0.8 20.3 0.04 0.07 0.14 0.28 0.5 0.73 0.99 1.28 1.52 1.7
0.375 9.5 0.8 20.3 0.09 0.15 0.31 0.64 1.13 1.64 2.22 2.86 3.4 3.8
0.5 12.7 0.8 20.3 0.14 0.24 0.49 1 1.78 2.59 3.5 4.5 5.38 6
0.812 20.6 0.8 20.3 0.26 0.58 1.06 2.71 4.56 6.48 8.0 9.04 9.64 10
1.5 40 2500
0.25 6.4 0.8 20.3 0.04 0.07 0.14 0.28 0.5 0.73 0.99 1.28 1.52 1.7
0.375 9.5 0.8 20.3 0.09 0.15 0.31 0.64 1.13 1.64 2.22 2.86 3.4 3.8
0.5 12.7 0.8 20.3 0.14 0.24 0.49 1 1.78 2.59 3.5 4.5 5.38 6
0.812 20.6 0.8 20.3 0.29 0.52 1.07 2.18 3.86 5.62 7.6 9.77 11.65 13
0.994 25.2 0.8 20.3 0.41 0.71 1.48 3.01 5.34 7.78 10.53 13.53 16.13 18
1.25 31.8 0.8 20.3 0.68 1.55 2.66 6.77 11.4 16.2 20 22.6 24.11 25
1.625 41.3 0.8 20.3 0.95 2.17 3.72 9.48 15.97 22.69 28 31.65 33.76 35
2 50 2500
0.25 6.4 0.8 20.3 0.04 0.07 0.14 0.28 0.5 0.73 0.99 1.28 1.52 1.7
0.375 9.5 0.8 20.3 0.09 0.15 0.31 0.64 1.13 1.64 2.22 2.86 3.4 3.8
0.5 12.7 0.8 20.3 0.14 0.24 0.49 1 1.78 2.59 3.5 4.5 5.38 6
0.812 20.6 0.8 20.3 0.34 0.59 1.23 2.51 4.45 6.48 8.77 11.28 13.44 15
0.994 25.2 0.8 20.3 0.43 0.75 1.56 3.18 5.64 8.21 11.11 14.28 17 19
1.25 31.8 0.8 20.3 0.59 1.03 2.14 4.35 7.71 11.23 15.2 19.54 23.3 26
Note:
1. 2 inch size valve with 2 inch (50.8mm) orifice diameter is only available with quick change trim for ASME Class 150 to 600.
2. The .75 and 1 inch valves with Cv 8 is available in quick change trim only.