ACV 557A1057 safety valve 4bar 3/4

ACV Safety Valve 4 Bar (557A1057) – Pressure Relief for Low-Pressure Boilers Safety valve 557A1057 opens at 4 bar pressure, protecting smaller ACV heating systems from excess pressure. Compatible with: Compact Condens 27 Smart Line SL 25 Prestige 24 Solo Benefits: Precise activation point Prevents system overpressure Genuine ACV spare part