HFT40024Z-01 Side Outlet Thermostatic Valve, G1
The Legom HFT40024Z-01 Side Outlet Thermostatic Valve is a G1 thermostatic mixing valve with a side outlet configuration and natural color pickled inlet and outlet ports, designed for water heater installations where the mixed water outlet exits from the side of the valve body rather than the standard inline end-to-end configuration. The side outlet design accommodates specific pipework layouts where a 90° change of direction at the mixing point is required without a separate elbow fitting.
The natural color pickling surface treatment on the inlet and outlet ports is an acid-cleaning process that removes oxidation and surface contaminants from the copper alloy, leaving a clean, natural brass surface without an applied plating layer — providing a distinctive appearance and eliminating the plating adhesion failure risk in the connection areas most exposed to mechanical stress during installation. Temperature adjustment range 20–60°C, control accuracy ±2°C, working pressure range 0.03–1 MPa. Manufactured from 57-3 copper body with surface plating, compatible with hot water inlet 30–99°C and cold water inlet 5–29°C.
Key Benefits
- Side outlet configuration for specific pipework layouts – The mixed water outlet exits from the side of the valve body rather than inline, enabling a 90° change of direction at the mixing point without requiring a separate elbow fitting — reducing connection count, potential leak points, and installation space
- Natural color pickled inlet and outlet ports – Acid pickling removes surface oxidation from the connection areas, leaving a clean natural brass surface without an applied plating layer. This treatment is particularly valued in markets where natural brass connections are preferred and provides a clean, oxide-free surface for thread engagement and sealant adhesion
- G1 connection (DN25) for mid-commercial flow – The G1 bore sits between domestic G3/4 and larger commercial G1¼ and above, suited to light commercial and larger domestic water heater installations requiring more flow capacity than G3/4 provides
- ±2°C temperature control accuracy – Consistent mixed water delivery within ±2°C of the set point across varying supply pressure and temperature conditions
- 20–60°C adjustment range – ABS black handwheel for full-range commissioning adjustment, with factory-preset narrower ranges available for safety applications
- No electricity required – Self-acting thermostatic operation with no electrical connection needed at the valve
- 57-3 copper body – High-quality copper alloy construction for durable potable hot water service
- Wide pressure range 0.03–1 MPa – Covers gravity-fed low-pressure through standard mains-pressure systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HFT40024Z-01 |
| Body Material | 57-3 copper, surface plated body; natural color pickled inlet and outlet ports |
| Handwheel | ABS black |
| Connection | G1 internal thread (DN25) |
| 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 and light commercial) |
Application & Use Cases
- Pipework layouts requiring a 90° outlet direction change at the mixing point – The side outlet eliminates the need for a separate elbow on the mixed water outlet, reducing the connection count in installations where the distribution pipework runs perpendicular to the valve’s inline axis
- Wall-mounted water heater installations – Where the water heater is mounted against a wall and the mixed water outlet needs to exit horizontally to the side rather than straight down or forward from the heater connection
- Compact plant room configurations – Where space constraints require the mixed water outlet to change direction immediately at the valve body rather than via a separate fitting downstream
- Light commercial water heating systems – The G1 (DN25) connection serves light commercial applications with hot water demand above what G3/4 domestic models can provide
- OEM water heater product integration – The natural color pickled port finish and side outlet geometry make this model well suited for integration into OEM water heater products where a specific connection appearance and outlet orientation are design requirements
Installation Notes
- Identify the side outlet port before installation and plan pipework routing to align with the outlet direction — the mixed water exits from the side of the body, not from the end inline with the inlets
- Connect hot water supply to the hot inlet (H), cold water supply to the cold inlet (C), and distribution pipework to the side mixed outlet (M) using male G1 fittings with appropriate thread sealant
- The pickled port surfaces are clean and ready for thread sealant application — do not use abrasive tools on the pickled surfaces, which could damage the clean thread profile
- Install isolation valves upstream of both hot and cold inlets to enable servicing without shutting down the water supply
- Install a strainer on the cold inlet to protect the thermostatic cartridge from debris
- The valve performs optimally at 0.1–0.5 MPa
- Verify outlet temperature at the furthest fixture with a calibrated thermometer after installation before commissioning for occupant use
Frequently Asked Questions
What is a side outlet thermostatic valve?
In a standard inline thermostatic mixing valve, the hot inlet, cold inlet, and mixed outlet are all aligned on the same axis — water enters from one end and exits from the other. In a side outlet configuration, the mixed water outlet exits from the side of the valve body at 90° to the inlet axis. This allows the valve to change the flow direction at the mixing point without requiring a separate elbow fitting on the mixed outlet, which reduces connection count and simplifies pipework in layouts where the distribution pipework runs perpendicular to the water heater connections.
What is natural color pickling and how does it differ from plating?
Pickling is an acid-cleaning process that removes surface oxides, scale, and contaminants from copper alloy surfaces, leaving a clean, bright natural brass finish without applying any additional metal coating. Unlike nickel or chrome plating — which deposit a thin layer of a different metal onto the surface — pickling simply cleans the existing copper alloy surface to its natural state. The result is a clean, oxide-free surface with the natural colour of the 57-3 copper alloy, which is valued in applications where a natural brass appearance is preferred and where the absence of a plating layer eliminates any risk of plating adhesion failure 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 any specific outlet orientation requirements when ordering.
OEM & ODM Customization
Legom supports OEM and ODM services for the HFT40024Z-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.
