The 1" Anti-Freeze Valve helps protect air source heat pump and hydronic heating systems from freezing during low-temperature conditions. If the fluid temperature falls to approximately 3°C, the valve automatically opens to discharge water from the system, helping to prevent ice formation and potential damage to external pipework and components.
As the fluid temperature rises to approximately 4°C, the valve closes automatically. Its mechanical operation does not rely on an electrical supply, making it a simple and reliable addition to suitable heating installations.
Max. working pressure | 5 bar |
| Temp range | 0-65 °C |
| Ambient temp range | -30–60 °C |
Opening temperature | 3 °C |
Closing temperature | 4 ° |