HFT40009Z-01 Thermostatic Mixing Valve, G3/4
The Legom HFT40009Z-01 Thermostatic Mixing Valve is a G3/4 thermostatic mixing valve with a spark pattern silk-screen handwheel and nickel-plated 57-3 copper body — the standard domestic connection size counterpart to the G1 HFT40004Z-01. Delivering the same thermostatic mixing performance as the wider HFT series — temperature adjustment range 20–60°C, control accuracy ±2°C, working pressure range 0.03–1 MPa — the HFT40009Z-01 combines reliable thermostatic function with a distinctive decorative handwheel finish at the most common domestic water heater connection size.
Manufactured from 57-3 copper with nickel plating, compatible with hot water inlet 30–99°C and cold water inlet 5–29°C, covering all standard electric, gas, solar thermal, and heat pump domestic water heaters. Factory-preset temperature ranges available for OEM orders.
Key Benefits
- Spark pattern silk-screen handwheel at standard domestic size – The distinctive spark pattern graphic finish differentiates the HFT40009Z-01 from plain and numbered handwheel models at the most common G3/4 domestic TMV connection size, suited to OEM product differentiation and visible installation locations
- Nickel-plated copper body – Consistent silver-toned surface finish with corrosion resistance for long-term potable hot water service, coordinating with the spark pattern handwheel for a unified premium appearance
- G3/4 — most common domestic water heater connection – Direct compatibility with standard domestic storage water heater outlets and G3/4 supply pipework without reducers or adapters
- ±2°C temperature control accuracy – Consistent mixed water delivery within ±2°C of the set point across varying supply conditions
- 20–60°C adjustment range – Full-range commissioning flexibility with factory-preset narrower ranges available
- No electricity required – Self-acting thermostatic operation requiring no electrical connection
- 57-3 copper with nickel plating – Premium construction for durable domestic hot water service
- Wide pressure range 0.03–1 MPa – Including gravity-fed low-pressure systems from 0.03 MPa
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HFT40009Z-01 |
| Body Material | 57-3 copper, nickel plated |
| Handwheel | ABS black, spark pattern silk-screen |
| Connection | G3/4 internal thread (DN20) |
| Temperature Adjustment Range | 20–60°C (standard); 35–55°C / 40–50°C / 30–60°C (preset options) |
| Temperature Control Accuracy | ± 2°C |
| Working Pressure Range | 0.03 MPa – 1 MPa |
| Ideal Working Pressure | 0.1 MPa – 0.5 MPa |
| Cold Water Temperature Range | 5°C – 29°C |
| Hot Water Temperature Range | 30°C – 99°C |
| Primary Use | Water heater (domestic) |
Spark Pattern Series — G3/4 vs G1
| Model | Connection | Bore | Typical Use |
|---|---|---|---|
| HFT40009Z-01 | G3/4 | DN20 | Standard domestic water heater |
| HFT40004Z-01 | G1 | DN25 | Larger domestic / light commercial |
Application & Use Cases
- Standard domestic water heater installations – The most common application — installed on G3/4 domestic water heater outlets where a distinctive handwheel finish is preferred over plain models
- OEM water heater product integration – Manufacturers specifying a distinctive handwheel graphic for product differentiation at the standard domestic TMV connection size
- Visible installation locations – Plant rooms, utility areas, and semi-exposed valve positions where the nickel-plated body and spark pattern handwheel provide a more finished appearance
- Solar thermal and heat pump domestic systems – Where G3/4 connection capacity matches the system and the nickel-plated body provides additional corrosion resistance
- All standard domestic heater types – Compatible with electric, gas, solar thermal, and heat pump water heaters with G3/4 outlet connections
Installation Notes
- Connect hot water to hot inlet (H), cold water to cold inlet (C), and mixed outlet (M) to distribution pipework using male G3/4 fittings with appropriate thread sealant
- Install isolation valves upstream of both hot and cold inlets
- Install a strainer on the cold inlet to protect the thermostatic cartridge
- The valve performs optimally at 0.1–0.5 MPa
- Verify outlet temperature at the furthest fixture with a calibrated thermometer after installation
- Flush supply lines before installation to remove debris
Frequently Asked Questions
How does the HFT40009Z-01 differ from the HFT30001 G3/4?
Both are standard inline G3/4 thermostatic mixing valves with identical pressure and temperature performance. The HFT30001 G3/4 has a plain or standard silk-screen black handwheel with nickel-plated body. The HFT40009Z-01 features the same nickel-plated body with a distinctive spark pattern silk-screen handwheel graphic. Choose the HFT40009Z-01 when the spark pattern handwheel finish is a product design or OEM specification requirement. Thermostatic performance is identical between the two models.
Can the handwheel graphic be customized for OEM orders?
Yes. Legom offers OEM customization including alternative handwheel graphic designs, color specifications, and branding. The spark pattern can be replaced with a custom OEM logo or design to meet specific product differentiation requirements. Contact the Legom team with your OEM handwheel specification.
Can the temperature range be factory-preset?
Yes. OEM and project orders can specify factory-preset temperature ranges of 35–55°C, 40–50°C, or 30–60°C that mechanically restrict handwheel travel. Contact the Legom team to specify the required preset range when ordering.
OEM & ODM Customization
Legom supports OEM and ODM services for the HFT40009Z-01 Thermostatic Mixing Valve. Customization options include handwheel graphic design, preset temperature range, connection size, and body finish. The spark pattern handwheel can be replaced with a custom OEM graphic or color specification. Contact us via WhatsApp or info@legomsmart.com.
Product information last reviewed by the Legom Technical Team. For the most current specifications, refer to the official datasheet or contact our sales team.
Custom OEM & ODM Solutions
Legom is a direct manufacturer offering end-to-end OEM and ODM services. With our in-house engineering and production capabilities, we work closely with distributors and system integrators to deliver fully customized solutions under strict NDA.
