Zilmet CAL PRO Floor Standing Heating Expansion Vessel 200l

CAL-PRO expansion vessels by Zilmet absorb water volume variations in closed heating systems. They maintain constant pressure, reducing energy consumption and saving money. Available in capacities from 4 to 900 litres, they suit domestic and commercial unvented central heating systems. CAL-PRO vessels accommodate increased water volume during heating in an unvented circuit. The pressurised membrane allows water to enter or leave only during heating and cooling. They consist of crimped or welded carbon steel shells and synthetic SBR rubber per DIN 4807-3 norms, maximising tank drawdown. The vessels have a red epoxy polyester powder coating for a long-lasting finish. Operating between -10C and 90C, they have a maximum working pressure between 1.5 bar and 6 bar. Capacities of 4 to 24 litres come with a bracket.. Zilmet CAL-PRO Floor Standing Heating Expansion Vessel - 200l