Mobile foam mixing and injection trolley - for blending and discharging e.g. urea!-formaldehyde! foam insulation for cavity walls

摘要

A mobile unit for preparing and injecting foam insulation comprises a portable trolley carrying a small compressor plus a motor in which drive twin pumps for transferring resin and foam reagents from reservoirs alongside the trolley to a blending nozzle connected to the pumps by flexible hoses. Used esp. suitable for injecting foams based on ureaformaldehyde or similar resins into e.g. cavity walls.