As a factory-direct HVAC valve manufacturer and supplier in China, we produce CE certified thermostatic mixing valves, pressure relief valves, freeze and scald protection valves, and flow balancing valves at our own facility in Jiaxing, Zhejiang Province. With in-house CNC machining, dedicated assembly lines, and 100% pressure and function testing on every unit, we supply OEM valve system integrators and HVAC distributors in 90+ countries with consistent, independently verified flow control components for hydronic heating, solar thermal, healthcare and industrial applications.
When you source HVAC valves from Legom, you specify components engineered to meet EN 1111, NHS D08, ASSE1070, ASSE1016, ASSE1017, CSA B125.3, NSF 61/372 and other international standards — backed by CE certification and, for selected TMV models, independent third-party laboratory verification.
We manufacture 68 HVAC valve models across six functional categories — thermostatic mixing valves, temperature and pressure relief valves, freeze and scald protection valves, flow balancing valves, fan coil components, and the HFT thermostatic series. All models are CE certified and manufactured at our own facility in Jiaxing, Zhejiang. OEM and ODM customization is available across the full range.
Blend hot and cold water to deliver a stable outlet temperature, protecting users from scalding and ensuring consistent delivery temperature in residential, commercial and healthcare applications.
| Model | Type | Key Specification | Standards | Typical Application |
|---|---|---|---|---|
| 910010CC | Standard TMV | Brass body, adjustable set point | CE | Domestic hot water, residential mixing |
| 910018CC | Solar TMV | Designed for solar water heater outlets | EN 1111, CE | Solar thermal hot water systems |
| 910064CC | Electronic TMV | Electronically controlled set point | CE | Smart building hot water management |
| 910054NT | Circulation TMV | Multi-point thermostatic circulation control | CE | Hot water circulation systems |
| 910021NT | High-Flow Central TMV | 60L/min; 4×G3/4″; 16 bar static; 30-65°C | CE | Central hot water mixing for multi-point distribution |
| 910034NT | Mini TMV | Integral check valves and strainers; auto shutoff | ASSE1070, CSA B125.3, NSF 61/372, CE | Point-of-use safety; healthcare; aged care |
| 910024CC | Solar Connection Kit | Thermostatic connection kit for solar collectors | CE | Solar thermal system connections |
Safety devices installed on boilers, water heaters and pressurised storage systems. They open automatically when pressure or temperature exceeds the rated threshold.
| Model | Key Specification | Typical Application |
|---|---|---|
| 930004NT | Automatic reset; wax inspection system; DN size options | Boilers, water heaters, pressurised storage vessels |
| 930008NT | High-capacity TP relief; larger body format | Commercial boilers, large-capacity hot water storage |
Guard pipework and end users from the two most common temperature-related failure modes in hydronic systems: pipe freezing and scalding at hot water outlets.
| Model | Type | Key Temperature Data | Typical Application |
|---|---|---|---|
| 910026NT | Freeze Protection | Initial open: 1.6°C; Full open: 4°C; Full close: 7°C | Outdoor pipework, heat pump systems, cold climates |
| 910028NT | Minimum Temperature Guard | Initial open: 36.7°C; Full open: 43.3°C; Closes below 35°C | Solar and storage hot water outlets; Legionella control |
Ensure equal flow distribution across all circuits in a hydronic system, preventing dominant circuits from starving other zones.
| Model | Type | Key Specification | Typical Application |
|---|---|---|---|
| 930001NT | Dynamic Balancing Valve | Automatic flow limiting; prevents excessive flow rate | Hydronic heating circuits, HVAC distribution |
| 930005NT | Dynamic Flow Balancing | Differential pressure independent flow control | Multi-zone HVAC, chilled water systems |
| 910033NT | Water Return Control | Controls hot water return circuit temperature | Domestic hot water recirculation systems |
Regulate the flow of water or glycol solution into fan coil units, enabling precise zone temperature control in buildings without ductwork.
| Model | Key Specification | Typical Application |
|---|---|---|
| 930019NT | KVS 2.7 m³/h; -10°C to 120°C; 25 bar; max 50% glycol | Fan coil units, HVAC zoning in hotels, offices, apartments |
With 68 models across 6 functional categories, selecting the correct HVAC valve requires matching three parameters from your system design to the correct product group:
Thermostatic mixing, pressure/temperature relief, freeze or scald protection, flow balancing, or fan coil flow regulation. Each function requires a different product category.
Confirm the maximum working pressure (bar) and operating temperature range. This determines which valve model, body material and safety relief threshold is appropriate.
Available in G1/2, G3/4 and G1 (BSP) thread sizes and selected NPT configurations. Confirm pipe diameter and thread standard before specifying a model.
| Production Location | Jiaxing, Zhejiang Province, China |
|---|---|
| MOQ | 1,000 units |
| Lead Time — Standard Models | Confirmed at order; contact the team for current scheduling |
| Lead Time — Custom / ODM | Project-based; agreed with the engineering team at specification stage |
| Primary Export Markets | Europe (primary); 90+ countries served globally |
| Shipping | Sea freight / Air freight / Express courier |
| Quality Inspection | 100% pressure and function testing before dispatch; batch test certificates available |
| Certifications | CE, RoHS |
| OEM Partners | 400+ globally |
68 models across six categories: thermostatic mixing valves (TMV), temperature and pressure relief valves (TP valves), freeze and scald protection valves, dynamic flow balancing and pressure limiting valves, fan coil component valves, and the HFT thermostatic series for faucet and shower valve integration.
It blends hot and cold water to deliver a consistent outlet temperature. At its core is a wax thermostatic element that expands as outlet temperature rises and contracts as it falls, mechanically adjusting the hot-to-cold ratio to maintain the set point without electrical input.
910026NT opens at 1.6°C to drain pipe and prevent ice damage, closing again at 7°C — it protects the pipe. 910028NT is a minimum temperature guard that stays closed below 35°C and opens above 36.7°C, ensuring only adequately hot water is delivered — important for Legionella control. Both are passively operated by wax elements.
CE certified across the full range. Selected models carry additional certifications: 910034NT Mini TMV holds ASSE1070, CSA B125.3 and NSF 61/372; 910018CC Solar TMV is certified to EN 1111.
Primarily brass — the industry standard for thermostatic mixing and flow control due to corrosion resistance and durability. Selected HFT models are available with electroplated or natural pickled finishes. Stainless steel options are available for marine or aggressive environments.
G1/2, G3/4 and G1 BSP thread configurations. 910021NT central mixing valve uses 4×G3/4″ ports. Other standards including NPT and larger bores are available on request.
We are a manufacturer. All HVAC valves are produced at our own facility in Jiaxing using in-house CNC machining, assembly and pressure-testing equipment. Factory visits are welcome by appointment.
MOQ is 1,000 units for both standard and custom models. Standard lead time is confirmed at order; custom or ODM orders are project-based and agreed at the specification stage.
Worldwide shipping from Jiaxing via sea, air or express, supporting EXW, FOB Ningbo, CIF and DDP, with full export documentation — commercial invoice, packing list, certificate of origin and production test reports.
Yes. Valves can be supplied under your brand with custom packaging, labelling and product documentation. All OEM and private label projects are handled under strict confidentiality agreements.
