FOAMING SYSTEM WITH MIXING CHAMBER PRESSURE CONTROL

摘要

A foam cleaning system and a foam cleaner which is provided with a control actuated by build-up of static pressure in a foaming chamber to cut off air pressure to the chamber thus ensuring that during periods when foam is not being produced the pressure on the foamer hose is minimized. The foamer also has a facility whereby any tendency of leakage of liquid back into the air system is prevented and automatic purging takes place on the pressure drop in the foam chamber.