Air removal system for water pipes comprises vertical venting pipe connected to water supply pipe, and sensor for amount of air in vent pipe, connected to control unit which switches on air pump when amount of air exceeds threshold value

摘要

An air removal system for water pipes comprises a vertical venting pipe (11) which is connected to a water supply pipe (3b). A sensor (13) for the amount of air in the vent pipe is connected to a control unit (19). This switches on an air pump (15) when the amount of air exceeds a threshold value and switches it off again when it falls below this value.