SA905-T Auto Balancing Actuator | ΔT Stepper UFH Control

SA905-T

Underfloor Heating Auto Balancing Actuator

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Automatic Hydronic Balancing; Eliminates Hot/Cold Spots.

Stepper Motor Drive for Fast and Precise Response.

Built-in ΔT Algorithm ensures High Control Accuracy.

Bluetooth App Diagnostics and Remote Monitoring.

Ultra-Low Power Consumption ( ≤2W) and Efficiency.

M30x1.5mm Interface, Perfect for New & Retrofit Systems.

Home Product Residential Valves and Actuator Underfloor heating (UFH) actuator

Product Description

The Saswell SA905-T is a smart, stepper-motor-driven electric actuator designed specifically for underfloor heating systems. It integrates advanced ΔT automatic balancing control technology to precisely measure the supply and return water temperature difference and adjust the valve opening. This effectively eliminates hydronic imbalance issues, ensuring accurate flow in every circuit. Supporting mobile App remote diagnostics and parameter settings via Bluetooth, it is a core component for achieving efficient and comfortable underfloor heating operation.

Key Functions

Constant ΔT

Real-time monitoring of supply/return temperature difference (ΔT) to actively modulate valve position.
Precise Drive

Stepper motor achieves millisecond-level accurate valve positioning and rapid response.
App Access

Connects via Bluetooth to the "E-Control" App to view operational data and history.

Uniform Heat

Ensures constant water ΔT, eliminating floor hot/cold spots for superior comfort.
IP54 Rated

Features IP54 rating for protection against dust and water splash in humid environments.
Wide Versatility

Compatible with various non-UFH terminals, such as fan coil units and radiators.

Product Selector

Model No.	Nominal Force	Voltage	Stroke	Control Signa	Manual
SA905-T(220V)	80-130N	220VAC	4.5mm	Automatic hydronic balancing valve actuator	download
SA905-T(24V)	80-130N	24VAC	4.5mm	Automatic hydronic balancing valve actuator	download
SAS905-V(220V)	160N	220VAC	6mm	Modulating 0-10V	download
SAS905-V(24V)	160	24VAC	6mm	Modulating 0-10V	download
SAS905-S	80-130N	220VAC	4.5mm	ON/OFF	download

Product Parameters

Power supply: SA905-T(220V):100-240VAC; SA905-T(24V):24VAC

Power consumption: ≤2W

Stroke: 4.5mm

Force: 80N~130N

Ambient temperature: 0 ~ +50°C

Ambient humidity: 10%~90%,non-condensing

Protective housing: IP 54

Valve interface: M30x1.5mm

Temperature sensor: NTC 100K, clip for pipe outer diameter from 12~20mm

Fluid temperature:10~60°C(Flow temperature limitation is active when lever is closed )

Automatic hydraulic balancing

Includes temperature sensor, △T algorithm ensures proper balance and control of each circuit. ±1.5°C temperature control accuracy.

Comfort & energy efficiency

High-end Residential Projects, Underfloor Heating Energy-Saving Retrofits, Smart Home Temperature Control Systems, Precision Manifold Control for Villas/Large Apartments.

LED status indicator for clear device monitoring

Keep on（Green）: Normal working standby state

Flashing（Green）: In operation

Keep on（Red）: Sensor high temperature alarm

Flashing（Red）: Sensor malfunction

Keep on（Blue）: Bluetooth connection successful

Fast and precise response

Stepper motor replaces wax core for precise and quicker temperature adjustments.

Actuation time: 150 seconds to open, 30 seconds to close

Smart app control for maintenance and compatibility

Monitor real-time supply/return temperatures, ΔT(Cooling/Heating), and valve position via “E-Control”app. Access 24-hour temperature history for quick troubleshooting. Bluetooth-enabled parameter adjustment ensures compatibility with fan coil units, radiators, and other non-floor heating terminals.

Partnership Support

As a professional manufacturer, we offer customized support for global UFH distributors, installers, and control system manufacturers. Our goal is to ensure smooth installation and operation, minimizing your after-sales service burden.

Technical Consulting

Expert teams provide detailed guidance on actuator installation, wiring, and Bluetooth App setup, including 24-hour support for hydronic balancing and commissioning troubleshooting.

Deep Customization

We support full actuator body branding (LOGO, color adjustment), as well as customized packaging and labeling services.

Global QA & Warranty

Rigorous Quality Control ensures product reliability and longevity. We establish a localized quick-response mechanism for global after-sales service to reduce operational costs.

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Get In Touch

Contact our friendly Customer Service team for any Question,Concern, or Suggestion. We'd love to hear from you!

8675561218391/2/3/4/5

info@saswell.com