Protects the heating system from frost damage The valve is maintenance-free Can be insulated to save energy LK 556 AntiFreeze protects your heating system if the fluid temperature drops below +3 °C. This prevents the heating system from freezing.
Parameter Value Max. working pressure 0.6 MPa (6 bar) Min. working pressure 0.05 MPa (0.5 bar) Operating temperature 0–75 °C Opening temperature 3 °C Ambient air temperature –30–60 °C Storage temperature –30–60 °C Thread standard G – male thread Valve body material Brass EN 12165 CW617N Seal material EPDM