Apparatus for mixing and dispensing a plurality of components with injected low pressure gas

摘要

A foam dispensing system and apparatus for mixing a plurality of foam components into an expanded foam and dispensing the mixed foam components, the apparatus having a body portion and a cartridge assembly mounted on said body portion. The cartridge assembly includes a mix chamber having a longitudinal bore and an aftermix chamber in communication with the mix chamber. The apparatus further includes inlets and passageways for supplying the plurality of foam components to the longitudinal bore of the mix chamber and a slidable valve rod for controlling the flow of the plurality of foam components into the mix chamber. A pressurized gas is injected into the aftermix chamber to aid in the mixing of the plurality of foam components and to provide an improved spray pattern of foam.