Hydronic balancing solution for residential underfloor heating systems

SA Series Electric Thermal Actuators for UFH and FCU Systems

Reliable SA Series electric thermal actuators for underfloor heating (UFH) and fan coil unit (FCU) systems. Covering wax thermal, stepper motor, hydronic balancing, and 0-10V modulating actuator technologies.

Selection Guide

Still evaluating your options?
Select the optimal actuation technology and control capability based on your project requirements, performance targets, and system design objectives.
Comparison of three electric thermal actuator types for terminal system architectures
Control Type Drive Technology Core Function Typical Application Recommended Products
ON/OFF Control Wax Thermal / Stepper Reliable On/Off zone control with optional fail-safe protection Underfloor heating, conventional hydronic control, PICV Application SA91, SA93, SA95X, SA96L, SA905-S
0–10V Modulating Stepper Motor (High-Resolution) Continuous proportional modulation Fan coil units, heat pumps, commercial HVAC SA905-V
ΔT Automatic Balancing Stepper Motor (Self-Optimizing) Self-optimizing temperature differential control Hydronic balancing systems, heat pump systems SA905-T

Pro Tip: How to Optimize Your Selection

● For standard residential and commercial HVAC projects, choose Wax Thermal Actuation for proven reliability, silent operation, and cost-effective On/Off control.Stepper Motor vs. Wax Thermal Actuator Technical Analysis →
● For high-performance buildings, hospitality projects, office complexes, and energy retrofit applications, select Intelligent Stepper Actuation to unlock advanced modulation, automatic balancing, fail-safe protection, and intelligent commissioning capabilities.Stepper Motor vs. Thermal Actuator Technical Analysis →
Not certain which control architecture applies?
Our engineering team offers complimentary project-specific matching.
英雄卡双列样式

System Solutions

Connectivity & Integration

Standard HVAC Control Compatibility
Compatible with conventional thermostats, building automation systems, and hydronic control architectures.

Bluetooth Commissioning
Selected intelligent actuator models support wireless parameter configuration, diagnostics, and commissioning via mobile application. Extended Reading: Digital Commissioning & Bluetooth O&M →

Universal Mechanical Interface
Standard M30×1.5 threaded connection ensures compatibility with mainstream valves, manifolds, and PICV systems.

OEM/ODM Co-Development Support
Flexible hardware platforms and customized control strategies support OEM integration and joint development projects.

Electric thermal actuator integration architecture for residential and building hydronic and fan coil control

Global Market Readiness

SA Series electric thermal actuators are designed to meet major international HVAC standards and certification requirements, including CE (LVD+EMC), CE-LVD (EN60730-1 / EN60730-2-14), and RoHS 2.0, ensuring reliable performance across global markets.
Beyond regulatory compliance, our engineering team holds multiple proprietary patents that reflect continuous innovation in hydronic control —— including a valve stroke detection method (Invention Patent, CN202511572216.X) and a quick-install normally closed electric thermal actuator (Utility Model Patent, CN202220147002.3), delivering both certified quality and application-driven reliability.
OEM Manufacturing Capability
Scalable production capacity supports large-volume OEM and private-label manufacturing projects.
Engineering Collaboration
Professional engineering support for product selection, system integration, and co-development programs.
Long-Term Supply Reliability
Stable manufacturing processes and supply chain management ensure dependable long-term product availability for global HVAC partners.
Global market compliance certifications for SA series electric thermal actuators
Get in Touch

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