Zilmet CAL-PRO 250 Litre Expansion Vessel 6 Bar Z1-302250 1300025000
SKU
125926
£549.40
Overview
Operation
The CAL-PRO range of Expansion Vessels is specifically designed for domestic and commercial unvented central heating systems. The purpose of these vessels is to accommodate the increased liquid volume which occurs during system heating in an Unvented Circuit. A pressurised membrane allows ingress/egress of the liquid only during periods of heating / cooling.
The Expansion Vessel must be fitted to the Return Side of the Central Heating System and in such a way that there can at no time be an obstruction between the vessel and the system. The orientation of the expansion vessels Water Connection should be downwards to avoid risk of sediment ingress or other debris from the system. Some provision for the prevention of air ingress into the vessel must also be made as this will degrade the vessel very quickly.
