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- AVF234S _ AVF234SF132_AVF234SF232 - Valve Actuator With Spring Return & SUT
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AVF234S _ AVF234SF132_AVF234SF232 - Valve Actuator With Spring Return & SUT
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Product Description
How energy efficiency is improved
Automatic adaptation to valve, precision activation and high energy efficiency with minimal operating noise
Features
- Activation of 2-way and 3-way valves of the VQD/BQD, VQE/BQE, VUG/BUG, VUP, VUS/BUS and V6R/B6R series
- For controllers with switching (2- and 3-point) and continuous output (0...10 V, 4...20 mA)
- Spring return moves to end position in the event of a power failure/interruption or when a limit controller is activated
- Stepping motor with SAUTER Universal Technology (SUT) electronic control unit and electronic, force-dependent cut-off
- Simple assembly with valve; spindle is automatically connected after control voltage is applied (patented system)
- Automatic detection of applied control signal (constant or switched); indicated by two LEDs
- Coding switches for selecting characteristic and running time
- Type of characteristic (linear/quadratic/equal-percentage) can be set on the actuator
- Automatic adaptation to the stroke of the valve (min. valve stroke 8 mm, max. valve stroke 49 mm). The measured stroke is saved and is not lost even in the event of a power failure
- Direction of operation can be selected via screw terminals when making the electrical connection
- Crank handle for external manual adjustment with motor cut-off and as trigger for a re-initialisation
- Numerous adapters enable the unit to be fitted onto non-SAUTER valves
- Power supply 230 V with module or direct connection for 24 V~ or 24 V=; continuous activation also admissible with 230 V
- Maintenance-free gear unit made of sintered steel; gearbox base-plate made of steel
- Spring pack and mounting column made of stainless steel; mounting bracket made of cast light alloy for valve fitting
- Electrical connections (max. 2.5 mm²) with screw terminals
- Three pre-scored cable inlets for M20 × 1.5 (2×) and M16 × 1.5
- Fitting vertically upright to horizontal, not suspended
Technical Details
| Power Supply | |
| Power supply 24 V~ | ±20%, 50...60 Hz |
| Power supply 24 V= | ±15% |
| Power supply 230 V~ | ±15% (with accessories) |
| Power consumption* | 24 V~/24 V= 10 W/20 VA 230 V~ (with accessories) 13 W/28 VA |
| Parameters | |
| Running time | 2/4/6 s/mm |
| Running time of spring** | 15...30 s |
| Actuating power | 2000 N |
| Response time for 3-point | 200 ms |
| Number of spring returns | >40 000 |
| Parameters - Positioner | |
| Control signal 1 | 0...10 V, Ri = 100 kΩ |
| Control signal 2 | 4...20 mA, Ri = 50 Ω |
| Positional feedback 0...10 V | 0...10 V; load > 2.5 kΩ |
| Starting point U0 | 0 or 10 V |
| Control span ΔU | 10 V |
| Switching range Xsh | 300 mV |
| Ambient Conditions | |
| Admissible ambient temperature | –10...55 °C |
| Admissible ambient humidity | < 95% rh, no condensation |
| Temperature of medium | Max. 130 °C (180 °C or 240 °C with accessories) |
*Choose transformers for this value, otherwise malfunctions may occur
**Return time equates to a stroke of 14...40 mm and does not depend on the set running time
Overview
| Type | Stroke | Weight | Direction of operation of spring |
| AVF234SF132 | 14...40 mm | 5.6 kg | Spindle retracted |
| AVF234SF232 | 0...40 mm | 5.6 kg | Spindle extended |
AVF234SF132: Valve normally closed (NC) with: VQD/BQD, VQE/BQE, VUG/BUG, BUS; valve normally open (NO) with: VUS, VUP
AVF234SF232: Valve normally open (NO) with: VQD/BQD, VQE/BQE, VUG/BUG, BUS; valve normally closed (NC) with: VUS, VUP