| 摘要 |
A flushing apparatus 10 for internal cleaning of central heating systems and which comprises a reservoir 11 for a flushing liquid, a pump 15 for pumping flushing liquid around the system, service ports 32,33 by which pumped liquid leaves from and returns to the reservoir 11, and a diverter valve (35 Fig.4A) which changes the direction of flow between service ports 32,33. The pump 15 is fully located within the reservoir for immersion in the liquid being pumped so that the pump motor is cooled by the pumped liquid. A sump 16 may be located in the reservoir for collection of sludge flushed from the system. The reservoir may be mounted on wheels 18 to facilitate movement. |
