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AVN224S Valve Actuator with Safety Function & 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
- Actuation of 2-way or 3-way valves of type series VUG/BUG and VUP as per DIN EN 14597
- For controllers with constant output (0...10 V or 4...20 mA) and switching output (2-point or 3-point control)
- Valve actuator with safety function (as per DIN EN 14597) and pushing force of 1100 N, in normally closed (NC) or normally open (NO) version
- 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 recognition 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 valve stroke (min. valve stroke 8 mm, max. valve stroke 49 mm); the measured stroke is stored and is not lost in the event of a power failure
- Direction of operation can be selected via screw terminals when making the electrical connection
- Push-buttons on outside of housing for manual adjustment with motor cut-off and as trigger for reinitialisation
- Numerous adapters enable the unit to be fitted onto non-SAUTER valves
- 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 break-out 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, 18 VA 230 V~ (with accessories) 11 W / 24 VA |
| Parameters | |
| Running Time of Motor | 2/4/6 s/mm |
| Running Time of Spring* | 15...30 s |
| Actuating Power | 1100 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 Signal | 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 |
*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 |
| AVN224SF132 | 0...40 mm | 5.6 kg | Spindle retracted |
| AVN224SF232 | 0...40 mm | 5.6 kg | Spindle extended |
AVN224SF132: Valve normally closed (NC) with: VUG, BUG (as per DIN EN 14597); valve normally open (NO) with: VUP
AVN224SF232: Valve normally open (NO) with: VUG, BUG; valve normally closed (NC) with: VUP (as per DIN EN 14597)