278 - Valvola antigelo

Antifreeze Valve working up to 90°C (194°F)
It prevents the formation of ice in heat pump circuit by discharging the water when the medium temperature falls down to 3°C (37,4°F) avoiding potential damage to the system.
The thermal element is located in direct contact with water, so the system drain is activated only when it is really necessary.
Thanks to the integrated stopvalve the thermal element cartridge can be easily replaced without empting the system.
Vacuum breaker also available as spare part.

Working pressure max.: 10 bar (145 psi)
Working temperature range: 0°C - 90°C (32°F - 194°F)
Ambient temperature range: -30 - 60°C (-22°F - 140°F)
Opening temperature: 3°C (37,4°F)
Closing temperature: 4°C (39,2°F)
Accuracy: ± 1°C (33,8°F)
Kv: Version G 1”: 55 m3/h
Version G 1¼”: 70 m3/h
Version Ø28 for copper pipe: 64 m3/h
Discharge flow rate (3 bar): 1 l/h
Fluid: Water
Brass body
Springs in Stainless Steel
Seals in EPDM Perox