FIELD: fire-fighting equipment, particularly portable extinguishers with manually-operated pumps and nozzles thereof.
SUBSTANCE: spraying head 2 for aerosol sprayer acts upon squeezing vessel 1. The spraying head 2 comprises liquid channel 13 and air channel 15 adapted to supply flows of air and liquid to be sprayed into mixing chamber 18, in which liquid flow is broken into fine droplets. Finely dispersed aerosol jet flows out of mixing chamber through outlet orifice 23. Spraying device comprises push-pull valve 9. When valve 9 is installed in its closed position liquid is isolated from atmospheric air to prevent contamination and evaporation thereof.
EFFECT: increased efficiency.
13 cl, 5 dwg
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