Antifreeze Valve - DZR brass - DN25
The anti-freeze valve DN25 in dezincification-resistant brass protects heating and cooling installations against frost damage by automatically draining water when the temperature drops. It is designed as a safety component for modern heat pump systems and other outdoor or exposed pipework where reliable freeze protection is essential.
A thermostatic insert activates the valve at around 3°C and closes again above 4°C, so the system remains safeguarded without constant supervision. Operation at working pressures up to 10 bar and a Kvs of 9.57 m³/h suits demanding DN25 valve applications with stable flow. The valve works from 0 to 90°C medium temperature and up to 70°C ambient temperature, so it fits a wide range of residential and light commercial installations.
The body made of DZR brass resists corrosion and dezincification, extending service life in harsh conditions. The mechanical safety system is independent of power supply, so the valve remains active even during a power outage. It can be used with both monobloc and hydro-split heat pumps, supporting flexible system design without the need for glycol-based antifreeze.
The anti-freeze valve comes in a complete, eco-friendly package with all elements in one box and is covered by the FERRPLAY program. It is a solid choice wherever a durable DN25 installation valve with automatic frost protection and low operating costs is required.
- Minimum operating temperature [°C]:
- 0
- Maximum operating pressure [bar]:
- 10
- Maximum ambient temperature [°C]:
- 70
- Maximum operating temperature [°C]:
- 90