Burkert Type 3004 - Manual (Page 7)

7
SystemDescription
5. SYSTEM DESCRIPTION
5.1. Designated Application Area
The explosion-protected electromotive rotary actuator Type 3004
(designated below as rotary actuator) was developed to control ball
valves or flap valves with a quarter turn. Optionally the actuator is also
available at a rotation angle of 180° and 270°.
5.2. Options
• Three-position rotary actuator (180°)
• Rotation angle 180° or 270°
• Rotary actuator with feedback potentiometer
- Potentiometer with resistance values 100 W, 1 KW, 5 KW
or 10 KW
- Analogue feedback via signal: 0 – 10 V, 0 – 20 mA, 4 – 20 mA
• Rotary actuator with emergency current model
• 2 additional limit switches
5.3. Exploded views
Motor 25 - 75 Nm No. Designation
1 Position indicator
2 Hood
3 Stainless steel screws
4 Motor
5.a Control and power supply
card
5.b Power supply card
6 Gear plate
7 O-ring
8 Gears
9 Push-button
10 Housing
11 Rating plate
12 Additional limit switch
13 Cams
14.a Control and power supply
14.b Terminal strip for power
supply
15 Threaded connection ISO
M20
16 Screw for earthing
17 Control card (for variable
speed actuator only)
Motor 25 - 75 Nm with control
card
Fig. 1: Exploded view of motor 25 – 75 Nm
english
Type 3004