Membrane expansion container, e.g. for a heating installation, has a conductivity sensor in its gas filled volume to detect possible water leaks so that a warning signal can be generate

摘要

Membrane expansion container (1) has a membrane (3) between a water volume (4) and a gas volume (6) together with a sensor that extends into the gas volume. The sensor comprises two electrodes (8) that are connected, via leads (9), to monitoring electronics (10) that measure the conductivity between the electrodes.