| 摘要 |
The equipment introduces wetting agents, washing substances or solutions etc. in a current of water under pressure in a cleaning machine. The equipment is mounted between the stop valve and the spray nozzle. It has a pump with a differential piston (6), driven by part of the current flowing to the nozzle. This has sliding control valves (5, 7), extracting the additive from a vessel (10) and delivering it into the current of water. |
