Technical Specifications
6 | GE Oil & Gas
Valve Size
Factor
Flow to Open
Flow to Close
inches DN
Rated C
V
F
L
Rated C
V
F
L
0.036 .5 0.98 .5 0.86
0.07 1 0.98 1 0.86
0.2 2.8 0.88 3 0.7
1 25 0.4 5.6 0.88 6 0.7
0.6 8.4 0.88 9 0.7
1 14 0.85 15 0.68
DVD 5
0.4 13.2 0.88 15.6 0.7
1.5 40 0.6 19.8 0.88 23.4 0.7
1 33 0.85 39 0.68
DVD 12.5
0.4 20 0.88 21.2 0.7
2 50 0.6 30 0.88 31.8 0.7
1 50 0.85 53 0.68
DVD 18
0.4 54 0.88 58 0.7
3 80 0.6 81 0.88 87 0.7
1 135 0.85 145 0.68
DVD 48
0.4 92 0.88 92 0.7
4 100 0.6 138 0.88 138 0.7
1 230 0.85 230 0.68
DVD 78
0.4 200 0.88 200 .07
6 150 0.6 300 0.88 300 0.7
1 500 0.85 500 0.68
DVD 181
0.4 340 0.88 340 0.7
8 200 0.6 510 0.88 510 0.7
1 850 0.85 850 0.68
DVD 308
0.4 520 0.88 520 0.7
10 250 0.6 780 0.88 780 0.7
1 1300 0.85 1300 0.68
DVD 486
0.4 700 0.88 700 0.7
12 300 0.6 1050 0.88 1050 0.7
1 1750 0.85 1750 0.68
DVD 684
Note:
Low flow trims (.036+.07 factor) require use of SVI II AP, or FVP digital positioners.
Maximum Rated Flow Coefficients (C
V
) and Critical
Flow Factors (F
L
) at Maximum Opening (50°)
750°F (400°C)
650°F (340°C)
550°F (300°C)
450°F (230°C)
350°F (180°C)
250°F (120°C)
150°F (70°C)
Temperature Gradient Across Standard Integral Bonnet
The ability of the Camflex valve to handle a wide range of process fluid
temperatures is due to the long, integrally-cast bonnet. This affords ample
radiation surface to normalize the packing temperatures.
Measured with direct positioner at 30 psi (2 bar) supply
4700P positioner with tubing size ¼ in.
* For Stainless Steel Bodies Only.
**Temperature Limited by Teflon
®
Seal.
Standard Actuator Characteristics and Travel Times
Temperature/Seat Leakage
Travel Time (sec.)
Actuator
Diaphragm
Actuator
Increasing Decreasing
Diameter
Effective
Stroke
Instrument Instrument
Area
Signal Signal
in. cm sq. in. cm
2
in. cm
4½ 11.4 14 90 3½ 8.9 1.2 2.4
6 15.2 24 155 5¾ 14.6 3 6.3
7 17.8 36 232 7¼ 18.4 7.6 9.8
9 22.9 75 483 7¼ 18.4 17 24
Valve Size
Seat
Type
Temp. Range* Max. Seat
Leakage, ANSI
FCI/70.2 Class
Min. Max.
in. DN
1-12
25 to
300
Metal
-320˚F*
(-196°C)
+750˚F
(400°C)
IV
Soft
Seat**
-320˚F*
(-196°C)
+450˚F
(232°C)
VI
Description Material
Yoke Cast Iron
Yoke Covers Polycarbonate
Spring Barrel Die Cast Aluminum
Diaphragm Case Die Cast Aluminum
Piston Die Cast Aluminum
Diaphragm Buna-N with Dacron Insert
Piston Rod 303 St. St.
Clevis Carbon Steel Zinc Dichromate Plated
Clevis Pin 17-4 PH (H1075) St. St.
Lever Steel With Epoxy Surface
Lever Bearing
PTFE Filament Surface Bonded to
Glass Reinforced Plastic Backing
Handwheel and
Locknut
Aluminum
Standard Spring Diaphragm
Actuator Materials
General Data