MODEL:
MOA (52 020 - 52 026, 52 029)
Electric rotary multi-revolution actuators for nuclear power
plants - Outside containment
Technical Data
MOA
Type number
52 020
52 021
52 022
52 024
52 025
52 026
52 029
Tripping torque [Nm]
20-63
63-160
160-250
160-630
630-1250
1250-2000
10-30
Tripping force [kN]
Adjusting time [s/90°]
Adjusting speed
[min-1]
25-40
40-100
40-80
40-100
30-63
32
9-40
[mm/min]
Working stroke
[°]
[ot.] / [r]
2-250
2-250
2-250
2-240
2-240
1-100
1,5-38
[mm]
Supply voltage
1x 230 V, 50 Hz
24 V, 50 Hz
1 x 110 V, 50 Hz
3 x 230 / 400 V, 50 Hz
Control
Two position On-Off
Three position
Continuous
PROFIBUS
Position sensing
Resistance transmitter (R)
Current transmitter (I)
Position interrupt
Torque-initated interrupt
Manual actuation
Explosion-proof design
Type of enclosure
IP 55
IP 55
IP 55
IP 55
IP 55
IP 55
IP 67
Weight - depending on design (Al/cast iron) and on motor [kg]
35-37
65-68
68
128-131
210-212
318
17
Usage
Electric rotary multi-revolution actuators MODACT® MOA are designed for remote control of special valves installed in attended areas of nuclear power plants with reactors VVER or RBMK. The type series includes 5 sizes of electric actuators with tripping torque from 20 Nm to 2000 Nm. The actuators are suitable for controlling sliding valves and valves with nuts. For valves, the pitch angle of thread of the spindle nut must not be higher than 5°.
