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AVF125S Valve Actuator With Spring Return & SUT
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Product Description
How energy efficiency is improved
Electric cut-off and self-adjustment to save energy
Features
- Activation of 2-way and 3-way valves with female thread of the VUN/BUN, VUD/BUD and VUE/BUE series. For controllers with switching (2- and 3-point) or continuous output (0...10 V, 4...20 mA)
- Spring return moves the unit to the end position in the event of a power failure or when a limit controller is activated
- Stepping motor with SAUTER Universal Technology (SUT) electronic control unit and electronic, force-dependent cut-off
- Automatic recognition of applied control signal (continuous or switched)
- Coding switches for selecting characteristic and running time
- Type of characteristic (linear/quadratic/equal-percentage) can be set on the actuator
- Direction of operation can be selected via screw terminals when making the electrical connection
- Maintenance-free gear unit
- LED display
- Electrical connections (max. 1.5 mm²) with screw terminals
- Cable inlet M20 × 1.5
- Fitting vertically upright to horizontal, not suspended
Technical Details
| Power Supply | |
| Power supply: | 24 V~, ±20%, 50...60 Hz |
| Power consumption: | 5 W, 8.4 VA |
| Power consumption on starting*: | 30 VA (max. 1 s) |
| Parameters | |
| Running time of motor | 60/120 s |
| Running time of spring | 18 s ±10 |
| Actuating power | 500 N |
| Actuator stroke | 0...8 mm |
| 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 | 200 mV |
| Ambient Conditions | |
| Admissible ambient temperature | –10...55 °C |
| Admissible ambient humidity | < 95% rh, no condensation |
| Temperature of medium | Max. 100 °C |
*Only in the event of a restart or after a spring return
Overview
Valvedrive;spring;SUT24V~;8mm=60/120s;0-10V;NC
| Type | Reset function |
| AVF125SF132 | Actuator spindle retracted / Actuator spindle normally moved in; valve normally closed (NC) with VUD, BUD, VUE, BUE, VUN, BUN |
| AVF125SF232 | Actuator spindle extended / Actuator spindle normally moved out; valve normally open (NO) with VUD, BUD, VUE, BUE, VUN, BUN |