Siemens -Valve Actuator SFA Series
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Enhance Zone Valve Control with Siemens SFA21/18 and SFA71/18 Electromotoric Actuators

Description: Siemens introduces the SFA21/18 and SFA71/18 Electromotoric Actuators, designed to optimize control and efficiency for zone valves in various heating, ventilation, air conditioning, and refrigeration systems. With a focus on simplicity, reliability, and performance, these actuators offer seamless integration with Siemens zone valves, providing precise control over water-based systems for low-temperature hot water and cooling water applications.

Key Features:

1. Operating Voltage Options:

  • The SFA21/18 operates on AC 230 V, while the SFA71/18 operates on AC 24 V, catering to different voltage requirements and ensuring compatibility with various power systems.

2. Precise 2-Position Control:

  • Both actuators support 2-position control signals, allowing for precise positioning of zone valves to regulate the flow of low-temperature hot water and cooling water with accuracy and efficiency.

3. Robust Positioning Force:

  • With a positioning force of 200 N, these actuators deliver robust performance, ensuring reliable operation and effective control over zone valves in demanding HVAC and refrigeration applications.

4. Spring Return Mechanism:

  • Featuring a spring return mechanism, these actuators provide fail-safe operation, ensuring that valves return to their default positions in the event of power loss or system failure, enhancing system safety and reliability.

5. Easy Installation and Adjustment:

  • Designed for hassle-free installation, these actuators offer direct mounting with a union nut, eliminating the need for additional tools and streamlining the setup process. Manual adjustment capabilities further simplify operation and maintenance tasks.

6. Auxiliary Switch Compatibility (Optional):

  • The actuators are compatible with the optional ASC2.1/18 auxiliary switch, providing additional functionality and flexibility for system integration and control customization.

Application:

  • The SFA21/18 and SFA71/18 Electromotoric Actuators are ideal for use with Siemens zone valves V..I46.., serving as reliable control solutions for water-based systems in HVAC, refrigeration, and other industrial applications.
  • Whether in heating systems, ventilation setups, air conditioning units, or refrigeration plants, these actuators offer dependable performance and precise control over zone valves, ensuring optimal system operation and energy efficiency. 

Part Numbers:
SFA21 Valve Actuator 200N 2.5mm Stroke AC 230V 2-Pos SR (15cm cable)
SFA21/18 Valve Actuator 200N 2.5mm Stroke AC 230V 2-Pos SR (1.8m cable)
SFA71/18 Valve Actuator 200N 2.5mm Stroke AC 24V 2-Pos SR (1.8m cable)

Frequently Bought Together

Total price $272.00