TL-51
Thermal Actuator
A water-resistant PVC thermal actuator for underfloor-heating manifolds and thermostatic mixing valves. The TL-51 listing supports normally-closed and normally-open configurations for controlled hydronic heating applications.

Compact valve control for hydronic systems
TL-51 is presented for hydronic floor-heating systems and thermostatic mixing-valve assemblies. Its compact actuator body and water-resistant PVC construction are suited to apartment, home-office and residential room applications listed on the product page.
Built for practical manifold integration
NC / NO Flexibility
The TL-51 product title identifies normally-closed and normally-open options, allowing selection according to the control logic of the heating system.
Water-Resistant PVC
The listing specifies PVC material and water-resistant performance for a compact actuator used around hydronic valve assemblies.
Thermostatic Mixing Valve
Designed for integration with compatible thermostatic mixing valves and underfloor-heating manifolds after mechanical verification.
Residential Applications
The page lists apartment, home office, living room, bedroom and dining applications for hydronic heating projects.
5A Relay Attribute
A 5A relay attribute appears in the product information; confirm the exact electrical rating and wiring for the ordered batch.
Project Supply
The listing shows a minimum order quantity of 50 units and supports supplier-side customization discussion for project requirements.
Five images from this product listing
Every image below comes from the specific TL-51 Alibaba listing. The gallery combines product views, cable details and the listing’s own manifold installation photograph.





Manifold-mounted hydronic valve control
Application shown in the TL-51 listing
This is the product page’s own TL-51 installation visual. It shows the actuator mounted within a hydronic underfloor-heating manifold assembly, matching the listed heating-system application.
Before installation, verify valve compatibility, NC/NO selection, AC 220V electrical requirements, terminal definition, actuator travel and system pressure/temperature conditions.
Confirm the ordered configuration before commissioning
TL-51 is described on the linked page as a 230V thermal actuator for hydronic floor-heating systems, with PVC material, water-resistant performance and normally-closed/normally-open options. Product-page attributes should be confirmed against the supplier’s technical drawing and the exact ordered batch.
TELIN · TL-51 · 230V thermal actuator · NC / NO · PVC · Hydronic floor-heating manifold application