
Universal M30 x 1.5mm Connection
Ultra-low 2W Power Consumption
IP45 Water-resistant Housing
Simple Open/Close Status Indicator
High-Quality Wax Element Drive
Wide Voltage Range (100-240VAC)
The SA91 Normally Open (NO) Electro-thermal Actuator is a core component for hydronic underfloor heating systems, utilizing a high-quality Paraffin Wax Core to regulate water flow in individual manifold loops based on thermostat signals. Featuring a universal M30 x 1.5mm thread and operating on a wide 100-240VAC supply with only 2W power consumption, the SA91 offers unparalleled compatibility, energy efficiency, and reliable ON/OFF control. Its robust IP45 design and simple visual indicator ensure accurate, maintenance-friendly zone temperature management.

Zonal Control
The actuator provides reliable ON/OFF flow regulation for individual manifold loops based on thermostat signals, enabling effective zonal temperature management for personalized comfort and efficient heating distribution.
Energy Saving
Operating with an ultra-low 2W power consumption, this actuator significantly reduces the running costs of the entire underfloor heating system compared to higher-wattage alternatives, enhancing overall energy efficiency.
High Compatibility
Equipped with the industry-standard universal M30 x 1.5mm connection, the actuator ensures seamless compatibility and easy installation with most common hydronic manifolds and valves found on the market.
Quick Diagnostics
A simple visual indicator on the housing allows users and technicians to immediately confirm the operational status of the valve (open or closed), facilitating rapid system diagnosis and troubleshooting.
Wide Voltage Adaptation
Designed with a wide 100–240VAC, 50/60Hz supply range, this actuator accommodates varying global electrical standards, greatly increasing product universality and market scope.
Wide Versatility
The IP45 protection rating ensures resistance against dust and splashing water, making the actuator perfectly suited for the humid and potentially harsh environments found inside UFH manifold cabinets.
| Model No. |
Nominal Force |
Voltage |
Stroke |
Control Signa |
Manual |
| SA91 | 80-130N | 220VAC | ≥3mm |
ON/OFF |
download |
Force:130N>F≥80N
Screw thread:M30 × 1.5mm
Ambient temperature:-10~+60°C
Ambient humidity:<90%
Protective housing:lP45
Dimensions: 40mm×40mm×60mm

Partnership & OEM/ODM Support
As a professional UFH component manufacturer, we provide tailored support for global distributors, installers, and control system partners, focusing on seamless operation and minimal after-sales burden.
Expert Technical Support
Detailed guidance on installation, wiring, and system commissioning, including 24-hour support for troubleshooting.
Deep Customization (OEM/ODM)
Full actuator body branding (LOGO, color), customized packaging, and labeling services.
Global QA & Warranty
Rigorous QC for product reliability. We offer a localized quick-response mechanism for global after-sales service to minimize operational costs.
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