Data Sheet

Electronic Actuators
D103347X012
Product Bulletin
52.1:ECV
November 2012
3
Table 2. MV-1020 Valve Pressure Drop Limitations (Based on 200 lbf thrust @ 0.13 in/sec)
ORIFICE DIAMETER
(1)
SEAT AREA
(in
2
)
STEM TRAVEL
MAXIMUM SHUTOFF PRESSURE
(2)
Class IV Class VI
mm inch mm inch bar psi bar psi
6.35 0.25 0.08 12.7 0.50 172 2500 157 2281
7.94 0.3125 0.11 12.7 0.50 --- --- 111 1619
9.53 0.375 0.15 12.7 0.50 91 1333 79 1158
20.64 0.8125 0.60 12.7 0.50 22.9 333 16.4 238
27.0 1.0625 0.89 12.7 0.50 13.8 201 8.5 126
31.80 1.25 1.35 19.1 0.75 10.2 148 5.7 83
38.10 1.50 1.92 19.1 0.75 7.1 104 3.4 49
50.80 2.00 3.34 19.1 0.75 4.0 59 1.2 18
1. See respective valve bulletins for port diameters.
2. Do not exceed valve body pressure-temperature rating.
Table 3. VA-1020 Valve Pressure Drop Limitations (Based on 750 lbf thrust @ 0.018 in/sec)
ORIFICE DIAMETER
(1)
SEAT AREA
(in
2
)
STEM TRAVEL
MAXIMUM SHUTOFF PRESSURE
(2)
Class IV Class VI
mm inch mm inch bar psi bar psi
6.35 0.25 0.08 12.7 0.50 206 3000 206 3000
7.94 0.3125 0.11 12.7 0.50 --- --- 206 3000
9.53 0.375 0.15 12.7 0.50 206 3000 206 3000
20.64 0.8125 0.60 12.7 0.50 85.8 1245 80.6 1170
27.0 1.0625 0.89 12.7 0.50 51.8 752 47.9 695
31.80 1.25 1.35 19.1 0.75 38.0 552 34.6 502
38.10 1.50 1.92 19.1 0.75 26.9 390 23.9 347
50.80 2.00 3.34 19.1 0.75 15.3 223 13.1 190
1. See respective valve bulletins for port diameters.
2. Do not exceed valve body pressure-temperature rating.