Zilmet expansion vessel code 13B6001200, 12-litre capacity, model 531/L, round shape with 3/4" connection.
Designed for domestic and industrial heating systems, it absorbs variations in water volume due to temperature changes, protecting the system from overpressure and ensuring stable, safe operation.
MAIN FEATURES
Capacity 12 litres.
Diameter 387 mm, height 138 mm.
Maximum operating pressure 3 bar.
Factory precharge 1 bar (±20%).
Maximum operating temperature 90 °C.
Grey colour.
3/4" G connection.
Sturdy steel construction with internal membrane for closed heating systems.
APPLICATIONS
Original Zilmet spare part for wall-mounted and central heating boilers.
Compatible with several models and brands, including:
Riello 4051012 – Beretta KG46 – Ferroli 39817290.
Ideal for replacing a damaged expansion vessel, ensuring proper pressure balance and overall efficiency of the heating system.