Varem UR100371CS000000 - Expansion vessel (100L)

Expansion vessel for closed heating systems

The Varem UR100371CS000000 expansion vessel (100L) is designed for use in closed heating systems. It absorbs volume changes in heating water when the temperature rises, helping prevent unwanted pressure increase in the installation.

Pressure control during water expansion

When water inside a heating system is heated, it expands. Without an expansion vessel, this increase in volume can lead to excessive system pressure, faults or component stress. This Varem expansion vessel helps keep pressure stable and protects pipework, pumps, heat exchangers and boilers.

100 litre capacity

With a capacity of 100 litres, this expansion vessel is suitable for medium to larger heating installations. Correct sizing depends on system water volume, operating temperature, pre-charge pressure and maximum system pressure.

Fixed membrane for reliable operation

The expansion vessel is equipped with a fixed membrane that separates the heating water from the gas side of the vessel. This allows pressure fluctuations to be absorbed in a controlled way and keeps the installation stable.

Galvanized steel flange

The flange is made from galvanized steel, providing a strong and durable connection within the heating system. The construction is designed for long-term use in closed heating circuits.

Applications in heating installations

The Varem 100L expansion vessel is used in heating systems, boiler installations, buffer tank setups and other closed heating circuits. It is suitable for residential, commercial and technical installations where reliable pressure control is required.

Support from Hewa

Hewa supplies expansion vessels, valves and installation materials for professional heating systems. Installers can rely on technical advice and suitable components for a wide range of heating projects.