SAUTER AVM234SF132 | Universal Valve Actuator with SUT Technology · 24V/230V

The SAUTER AVM234SF132 is a high-performance, universal valve actuator designed to provide precise control for heating, ventilation, and air conditioning (HVAC) systems. As part of the renowned AVM234S series, this unit incorporates SAUTER’s proprietary “SUT” (SAUTER Universal Technology), which significantly enhances energy efficiency and operational quietness.

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Description

The SAUTER AVM234SF132 is a high-performance, universal valve actuator designed to provide precise control for heating, ventilation, and air conditioning (HVAC) systems. As part of the renowned AVM234S series, this unit incorporates SAUTER’s proprietary “SUT” (SAUTER Universal Technology), which significantly enhances energy efficiency and operational quietness. The AVM234SF132 is engineered to drive both 2-way and 3-way valves, including the VQD/BQD, VQE/BQE, and various other compatible series. Its intelligent design allows it to automatically adapt to the specific stroke of the valve it is mounted on, ensuring optimal positioning accuracy without complex manual calibration.Operating on either 24V or 230V power supplies, the SAUTER AVM234SF132 offers exceptional versatility for diverse building management infrastructures. It supports multiple control signal types, including continuous inputs (0…10 V or 4…20 mA) and switching inputs (2-point or 3-point control), making it a flexible choice for retrofitting or new installations. The actuator features a maintenance-free gear unit made of sintered steel and a stepping motor that ensures reliable force transmission. With its ability to automatically detect control signals and save stroke data even during power failures, the AVM234SF132 stands out as a robust solution for maintaining thermal comfort and system efficiency in commercial and industrial buildings.

Technical Specifications

Parameter Name Parameter Value
Product Model SAUTER AVM234SF132
Manufacturer SAUTER (Switzerland)
Product Type Valve Actuator / Valve Drive
Series AVM234S (Universal Series)
Power Supply 24V AC/DC or 230V AC
Control Signal 0-10V, 4-20mA, 2-Point, 3-Point
Valve Compatibility 2-Way & 3-Way (VQD, VQE, VUG, etc.)
Stroke Range 8 mm to 49 mm (Automatic Adaptation)
Motor Type Stepping Motor with SUT Technology
Gear Material Sintered Steel (Maintenance-Free)
Electrical Connection Screw Terminals (Max 2.5 mm²)
Mounting Orientation Vertical Upright to Horizontal

 

Main Features and Advantages

Intelligent SUT Technology:
At the heart of the SAUTER AVM234SF132 lies the advanced SUT electronic control unit. This technology enables the actuator to operate with minimal noise and maximum energy efficiency. Unlike traditional actuators that may consume power constantly to hold a position, the AVM234SF132 utilizes a stepping motor that only draws power when movement is required. This results in significant energy savings over the lifecycle of the building. Furthermore, the SUT system provides an electronic, force-dependent cut-off, protecting both the actuator and the valve from mechanical damage due to obstruction or excessive pressure.Automatic Adaptation and Flexibility:
One of the most distinct advantages of the SAUTER AVM234SF132 is its ability to automatically adapt to the valve stroke. Upon installation, the actuator measures the valve’s travel distance (between 8 mm and 49 mm) and saves this parameter in its non-volatile memory. This means that even in the event of a power failure, the AVM234SF132 retains its calibration. Additionally, the unit can automatically detect whether it is receiving a constant or switched control signal, indicated by LED status lights, which simplifies commissioning. Users can also select the flow characteristic (linear, quadratic, or equal-percentage) via coding switches, tailoring the control behavior to the specific hydraulic requirements of the system.Robust Construction and Ease of Use:
Built for durability, the SAUTER AVM234SF132 features a mounting column made of stainless steel and a base plate constructed from steel, ensuring long-term stability in demanding environments. The gear unit is sealed and maintenance-free, reducing the total cost of ownership. For manual operation, the actuator is equipped with a crank handle that allows for external manual adjustment; this handle also serves as a trigger for re-initialization if needed. The patented system allows for simple assembly where the spindle connects automatically after the control voltage is applied, saving valuable installation time.

 

Application Field

The SAUTER AVM234SF132 is extensively used in modern building automation to regulate water flow in heating and cooling circuits. In district heating substations, for example, these actuators are mounted on heat exchanger valves to precisely control the temperature of the water supplied to the building. By modulating the valve position based on outdoor temperature or internal demand, the AVM234SF132 helps optimize energy consumption and ensure occupant comfort. Its ability to handle both 2-way and 3-way mixing or diverting applications makes it suitable for a wide variety of hydraulic configurations found in boiler rooms and plant rooms.In commercial HVAC systems, such as those in hospitals, office complexes, or shopping centers, the SAUTER AVM234SF132 plays a critical role in air handling units (AHUs). It controls the heating and cooling coils to maintain specific air temperatures. The actuator’s compatibility with standard control signals (0-10V) allows it to integrate seamlessly with Building Management Systems (BMS). Furthermore, because the AVM234SF132 can be fitted to non-SAUTER valves using various adapters, it is an ideal replacement part for upgrading aging facilities where original valve manufacturers may no longer be supported, extending the life of existing infrastructure.

Related Products

  • SAUTER AVM234SF132-5: A variant of the standard model, likely featuring specific cable entries or voltage configurations tailored for particular regional markets or applications.
  • SAUTER AVM234SF132-6: Another derivative in the AVM234 series, potentially offering different accessory kits or modified electrical connection options.
  • SAUTER VQD/BQD Valves: The primary range of 2-way and 3-way flanged valves that the AVM234SF132 is designed to control directly.
  • SAUTER VQE/BQE Valves: Threaded valve series compatible with the AVM234SF132, commonly used in smaller diameter piping applications.
  • SAUTER ASV234F: A spring-return actuator from the same family, used in applications where fail-safe closure or opening is required for safety reasons.

 

Installation and Maintenance

Pre-installation preparation: Before installing the SAUTER AVM234SF132, ensure that the valve stem is clean and free of burrs to allow for smooth coupling. Verify that the power supply matches the actuator’s rating (24V or 230V) to prevent damage to the electronics. The actuator is designed for mounting in orientations ranging from vertical upright to horizontal, but it should not be suspended upside down. Ensure there is sufficient clearance around the unit for the electrical connections and the manual override crank. When wiring, use the provided screw terminals and ensure the cable glands (M20 or M16) are tightened to maintain the enclosure’s ingress protection.Maintenance recommendations: The SAUTER AVM234SF132 is largely maintenance-free due to its sealed sintered steel gear unit. However, periodic visual inspections should be conducted to check for physical damage or loose electrical connections. If the actuator fails to move, check the LED indicators to determine if it is receiving a valid control signal. The manual override crank can be used to verify that the valve itself is not seized. If the valve has been stationary for a long period, exercising the actuator through its full stroke can help prevent sticking. Always disconnect power before attempting any physical adjustments or replacing the unit.