As a factory-direct manufacturer of Thermal actuator in Jiaxing, China, we produce CE and RoHS certified electric valve actuators in both Normally Closed (NC) and Normally Open (NO) configurations. With in-house injection moulding, dedicated assembly lines and end-of-line durability and function testing on every unit, we supply OEM manifold manufacturers, underfloor heating system integrators and HVAC distributors in 90+ countries with reliable zone-control components for residential, commercial and smart-home hydronic systems.
When you source thermal actuators from Legom, you specify components built to the EN 60730 standard for automatic electrical controls, CE and RoHS certified, with a low 2W power consumption across the range.
We manufacture a full range of thermal actuators for zone control in underfloor heating, radiant cooling and hot-water HVAC systems, divided into first-open, manual & automatic, easy-to-disassemble, water pump control and multi-stage intelligent control types. The range covers Normally Closed (NC) and Normally Open (NO) configurations, 12V to 230V, on/off and 0-10V modulating control, and App-controlled smart models. Every unit is CE and RoHS certified, compliant with EN 60730, with a PA66+30% glass-fibre housing and a low 2W operating power.
First-open actuators ship in the open position so the heating system can be filled, flushed and tested before the actuators are commissioned.
| Model | Voltage | Control | Force | Stroke | IP | Thread | Key Feature |
|---|---|---|---|---|---|---|---|
| 920059PL | 230/220/210/24/12V | NC | 100±10N | ≥4mm | IP41 | M30x1.5mm | Single adapter, NC standard |
| 920067PL | 230/220/210/24/12V | NC | 100N | ≥3.4mm | IP41 | M30x1.5mm | Compact-stroke NC actuator |
| 920075PL | AC 220V | Smart (WiFi/ZigBee/Tuya) | On demand | 4mm | IP41 | M30x1.5mm | Smart floor-heating actuator, 8 shell colours |
Combine thermostat-driven automatic operation with a manual open lever and visual position indicator for commissioning, balancing and power-out operation.
| Model | Voltage | Control | Force | Stroke | IP | Thread | Key Feature |
|---|---|---|---|---|---|---|---|
| 920018PL | 230/24/12V | NC/NO | 100±10N | ≥4mm | IP54 | M30/M28x1.5mm | Manual open lever + visual position indicator |
| 920083PL | 230/24/12V | NC/NO | 100±10N | ≥4mm | IP54 | M30/M28x1.5mm | Manual open lever + visual position indicator |
| 920062PL | 230/220/210/24/12V | NC | 100±10N | ≥4mm | IP54 | M30x1.5mm | Optional fast action (60-90s); standard 3-5 min |
Designed for rapid installation and tool-free removal, adapting to multiple adapters, multiple voltages, with a long service life for on-site maintenance and replacement.
| Model | Voltage | Control | Force | Stroke | IP | Thread | Key Feature |
|---|---|---|---|---|---|---|---|
| 920039PL | 230/220/210/24/12V | NC/NO | 100±10N | ≥4mm | IP54 | M30/M28x1.5mm | Dual-adapter all-rounder; full voltage; NC or NO |
| 920066PL | 230/220/210/24/12V | NC/NO | 100±10N | ≥4mm | IP54 | M30/M28x1.5mm | Standard NC/NO manifold zone-valve actuator |
| 920071PL | AC 220V | Smart (WiFi/ZigBee/Tuya) | 100±10N | ≥4mm | IP54 | M30x1.5mm | App & voice-control smart floor-heating actuator |
A dedicated actuator with an integrated micro-switch that starts the circulation pump on heat demand for single-zone and distributed heating layouts.
| Model | Voltage | Control | Force | Stroke | IP | Key Feature |
|---|---|---|---|---|---|---|
| 920074PL | 220V AC | NC | 110N | ≥3.4mm | IP54 | Integrated micro-switch (max 700mA/3A) and 800mm cable; starts circulation pump on heat demand |
A plug-in proportional actuator accepting a 0-10V control signal for multi-stage regulation, supporting energy-saving, comfort, heating and off modes in advanced controllers and building management systems. Highest force in the range.
| Model | Voltage | Control | Force | Stroke | IP | Key Feature |
|---|---|---|---|---|---|---|
| 920080PL | 24V DC | 0-10V modulating (NC) | 120±10N | ≥4mm | IP54 | Plug-in linear modulating actuator; energy/comfort/heating/off modes; highest force in range |
| Power Consumption | 2W (full range) |
|---|---|
| Compliance | EN 60730 |
| Housing Material | PA66 + 30% glass-fibre |
| Working Temperature | -5°C to 60°C (0-10V modulating model 920080PL: 0°C to 60°C) |
| Opening/Closing Time | Standard 3-5 minutes |
Match three key parameters from your system design to the correct actuator:
Most European residential systems use 230V on/off; central controllers and smart platforms usually use 24V; proportional systems need 0-10V modulating (e.g. 920080PL). Smart floor heating can use WiFi, ZigBee and Tuya models.
Normally Closed (NC) is the standard energy-saving fail-safe for floor heating. Normally Open (NO) suits applications where continuous flow is the safe default.
We offer M30x1.5mm and M28x1.5mm. Standard models deliver 100N; higher spring-resistance valves use 920074PL (110N) and 920080PL (120N).
| Production Location | Jiaxing, Zhejiang Province, China |
|---|---|
| Model Range | First-open, manual & automatic, easy-to-disassemble, pump-control, multi-stage modulating |
| Voltage Options | 12V, 24V, 210V, 220V, 230V; plus 24V DC modulating |
| Control Direction | Normally Closed (NC) and Normally Open (NO) |
| Power Consumption | 2W |
| Thread Options | M30x1.5mm and M28x1.5mm |
| Protection Rating | IP41 / IP54 by model |
| Compliance | EN 60730 |
| Certifications | CE, RoHS |
| Housing Material | PA66 + 30% glass-fibre |
| Quality Inspection | Durability and force/stroke testing before dispatch; user manuals and batch records available |
| Primary Export Markets | Europe (primary); 90+ countries served globally |
| Shipping | Sea / Air / Express |
| OEM Partners | 400+ globally |
An electric valve actuator for zone control in underfloor heating, radiant cooling and hot-water HVAC systems. On power, a PTC element heats the internal wax, which expands to drive the piston and open or close the manifold valve. On power-off, the wax cools and a return spring resets the valve, giving quiet, progressive motion with no solenoid noise or water hammer.
We are a manufacturer. Thermal actuators are produced at our own factory in Jiaxing, Zhejiang, with in-house injection moulding, sub-assembly, wiring and end-of-line endurance testing. Factory visits are welcome by appointment.
Normally Closed (NC): valve stays closed without power and opens when energised — the standard for floor heating. Normally Open (NO): valve stays open and closes when energised — for systems where maintaining flow is the safe default.
Match the output of your thermostat or controller: most European residential systems use 230V direct wiring; central controllers and smart platforms usually use 24V; 12V suits low-voltage DC systems.
We use M30x1.5mm and M28x1.5mm adapter threads, the two most common standards. Confirm the valve-head thread before ordering; adapters or OEM customization are available for other sizes.
Standard models complete a cycle in 3-5 minutes. 920062PL offers an optional 60-90 second fast-action version.
CE and RoHS certified, compliant with EN 60730. Protection rating is IP41 or IP54 depending on model.
Yes. 920071PL and 920075PL are smart actuators connecting WiFi and ZigBee through the Tuya platform, supporting App control and voice assistants. 920075PL is available in 8 housing colours.
Standard 12-month warranty from the date of shipment against defects in materials and workmanship. Warranty claims require a sample return for inspection.
Worldwide shipping from Jiaxing via sea, air or express, supporting EXW, FOB Ningbo, CIF and DDP, with full export documentation.
Yes, full customization of voltage, NC/NO direction, control signal, thread, cable length, force and housing colour under strict NDA.
On/off: two states — fully open when energised, fully closed when not (or the reverse for NO). 0-10V modulating (920080PL): positions the valve proportionally across the stroke for finer flow control and energy, comfort, heating and off modes.
