SAUTER AVF 234S: SUT valve actuator with spring return
AVF 234S: SUT valve actuator with spring return
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 con
troller 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 (pa
tented 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 adaptors 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 al
loy 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 data
Power supply
Power supply 24 V~ ±20%, 50…60 Hz
Power supply 24 V= ±15%
Power supply 230 V~ ±15% (with accessories)
Power consumption1) 24 V~/24 V=
10 W, 20 VA
230 V~ (with accessories)
13 W/28 VA
Parameters
Running time of motor 2/4/6 s/mm
Running time of spring2) 15…30 s
Actuating power 2000 N
Response time for 3-point 200 ms
Number of spring returns > 40.000
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 V or 10 V
Control span ΔU 10 V
Switching range Xsh 300 mV
Ambient conditions
Admissible ambient temperature
Admissible ambient humidity
Temperature of medium3)–10…55 °C
< 95% rh, no condensation
Max. 130 °C (180 °C or 240 °C with
accessories)
Construction
Housing
Housing material
Two-part, yellow
Fire-retardant plastic
Standards and directives
Type of protection
Protection class
EMC Directive 2004/108/EC4)
Electrical safety 2006/95/EC
Over-voltage categories
Degree of contamination
IP66 (EN60529)
III (IEC 60730)
EN 61000-6-2. EN 61000-6-4
EN 60730-1. EN 60730-2-14
III
III
Overview of types
Type
AVF234SF132
Stroke
14…40 mm
AVF234SF132-5 14 mm
AVF234SF132-6 40 mm
AVF234SF232
Weight
5.6 kg
5.6 kg
Direction of operation of spring
Spindle retracted
Spindle retracted
6 kg
0…40 mm
5.6 kg
Spindle retracted
Spindle extended
A AVF234SF132: Valve normally closed (NC) with: VQD/BQD, VQE/BQE, VUG/BUG, BUS; valve normally
open (NO) with: VUS, VUP
A AVF234SF132-5. -6: Valve normally closed (NC) with: V6R, B6R
A AVF234SF232: Valve normally open (NO) with: VQD/BQD, VQE/BQE, VUG/BUG, BUS; valve normally
closed (NC) with: VUS, VUP
Accessories
Type
0313529001
Description
Split-range unit for adjusting sequences, fitted in separate junction box
Modules can be added for 2-point/3-point and continuous activation; additional power 2 VA
Type
0372332001
0372332002
Description
230 V ±15%, supply voltage
100 V ±15%, supply voltage
Auxiliary change-over contacts (2 each) 12…250 V~
Type
0372333001
0372333002
0372334001
0372334002
0372334006
0372336180
0372336240
Description
Infinitely variable, min. 100 mA and 12 V permissible load 6(2) A
Gold-plated contacts, from 1 mA, to max. 30 V, wider range 3(1) A
Potentiometer, 2000 Ω, 1 W; 24 V
Potentiometer, 130 Ω, 1 W; 24 V
Potentiometer, 1000 Ω, 1 W; 24 V
Adapter (required when temperature of the medium is 130…180 °C)
Adaptor (required when temperature of the medium is 180…200 °C)
Assembly kit for AVF234SF*32 on SAUTER valves (no adaptor needed for 0372338 002)
Type
0372338001
0372338002
0372338003
0372338004
Description
V/B6 to DN 50. V/BXD, V/BXE, to DN 50. stroke 14 mm
V/B6 DN 65…150. V/BXD, V/BXE from DN 65. stroke 40 mm
Conversion kit from AV*2*4SF132-5 to standard actuator AV*2*4SF132
Conversion kit from AV*2*4SF132-6 to standard actuator AV*2*4SF132
Adapter set for non-SAUTER valves
Type
0372376010
0372376014
Description
Siemens with 20 mm stroke or Ø 10 mm spindle
Siemens with 40 mm stroke or Ø 14 mm spindle