HFT40022Z-01 Side Outlet Thermostatic Valve, G1/2
The Legom HFT40022Z-01 Side Outlet Thermostatic Valve is a compact G1/2 thermostatic mixing valve with a side outlet configuration and natural color pickled inlet and outlet ports — the smallest connection size in the Legom HFT side outlet series. The mixed water outlet exits from the side of the valve body at 90° to the inlet axis, accommodating compact domestic pipework layouts where the distribution pipe runs perpendicular to the water heater connection without requiring a separate elbow fitting.
Manufactured from 57-3 copper with surface plating and natural color pickled connection ports, the HFT40022Z-01 suits single-fixture point-of-use applications and small domestic water heaters where G1/2 is the standard connection size. Temperature adjustment range 20–60°C, control accuracy ±2°C, working pressure range 0.03–1 MPa, compatible with hot water inlet 30–99°C and cold water inlet 5–29°C.
Key Benefits
- Smallest side outlet TMV in the HFT range — G1/2 – Brings the 90° side outlet configuration to the most compact domestic TMV connection size, suited to single-fixture, under-sink, and small water heater installations where space is the primary constraint
- Natural color pickled ports – Acid-cleaned natural brass surface on inlet and outlet connection areas with no plating layer — clean thread profile, oxide-free surface for reliable thread sealant adhesion
- Side outlet eliminates separate elbow fitting – The 90° outlet direction at the valve body removes the need for a downstream elbow on the mixed outlet in perpendicular pipework layouts, reducing connection count and installation complexity
- ±2°C temperature control accuracy – Consistent mixed water delivery within ±2°C of the set point
- 20–60°C adjustment range – ABS black handwheel with factory-preset narrower ranges available
- No electricity required – Self-acting thermostatic operation
- 57-3 copper body – Durable copper alloy for potable hot water service
- Wide pressure range 0.03–1 MPa – Including low-pressure gravity-fed systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HFT40022Z-01 |
| Body Material | 57-3 copper, surface plated body; natural color pickled inlet and outlet ports |
| Handwheel | ABS black |
| Connection | G1/2 internal thread (DN15) |
| Outlet Configuration | Side outlet |
| Port Surface Treatment | Natural color pickling (acid cleaned, no plating layer) |
| 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) |
HFT Side Outlet Series — Complete Range
| Model | Connection | Bore | Typical Use |
|---|---|---|---|
| HFT40022Z-01 | G1/2 side outlet | DN15 | Single fixture, compact domestic |
| HFT40023Z-01 | G3/4 side outlet | DN20 | Standard domestic water heater |
| HFT40024Z-01 | G1 side outlet | DN25 | Light commercial / larger domestic |
Application & Use Cases
- Single-fixture point-of-use installations – Under-sink basin, shower, or bath TMV where G1/2 is the standard fixture supply size and the side outlet directs mixed water to a perpendicular distribution pipe without a separate elbow
- Small compact water heaters with G1/2 outlets – Instantaneous water heaters, small electric storage units, and compact solar thermal systems where G1/2 is the outlet connection and the distribution pipe runs at 90° to the heater
- OEM water heater product integration – The natural pickled port finish and side outlet geometry suit integration into compact OEM water heater assemblies with specific connection appearance and outlet direction requirements
- Confined under-sink and in-cabinet installations – Where the available space makes inline pipework impractical and the side outlet eliminates the need for an elbow in an already tight cabinet
Installation Notes
- Identify the side outlet port before installation and route distribution pipework to align with the side exit direction
- Connect hot water to the hot inlet (H), cold water to the cold inlet (C), and distribution pipework to the side mixed outlet (M) using male G1/2 fittings with appropriate thread sealant
- The pickled port surfaces are clean and oxide-free — apply thread sealant directly without additional surface preparation
- 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 fixture with a calibrated thermometer after installation
Frequently Asked Questions
When should I choose the HFT40022Z-01 over the HFT40023Z-01?
Choose the HFT40022Z-01 when your water heater outlet or fixture supply pipework is G1/2 (DN15). Choose the HFT40023Z-01 when the connection is G3/4 (DN20). Both have side outlet configurations, natural color pickled ports, and identical thermostatic performance — the only difference is connection size. G1/2 suits single-fixture point-of-use and compact heater installations; G3/4 is the standard for most domestic storage water heaters.
What is natural color pickling on the ports?
Pickling is an acid-cleaning process that removes surface oxides and contaminants from the copper alloy connection ports, leaving a clean, bright natural brass surface without any applied plating layer. Unlike nickel or chrome plating, there is no additional metal coating — just the clean, natural surface of the 57-3 copper alloy. The result is a clean thread profile with an oxide-free surface for reliable thread sealant adhesion and a natural brass appearance at the connection points.
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 and outlet orientation when ordering.
OEM & ODM Customization
Legom supports OEM and ODM services for the HFT40022Z-01 Side Outlet Thermostatic Valve. Customization options include outlet orientation, preset temperature range, connection size, body finish, and port surface treatment. 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.
