SPRAY VALVE ARRANGEMENT

摘要

: The invention relates to a spray valve assembly for an aerosol can. The valve is capable of allowing the can to operate properly either in the normal or inverted position. This is achieved by providing a main passage through the assembly and an auxiliary passage. An auxiliary valve is located in the auxiliary passage and is arranged to open the main passage only in the normal position of the can and the auxiliary passage only in the inverted position. The auxiliary valve is formed eccentrically in the valve housing portion which surrounds the auxiliary valve chamber, and the predominant part of the cross section of the main passage extending by the auxiliary valve is disposed on the side which is towards the axis of the valve housing, of an auxiliary valve axial plane which is disposed perpendicularly to a common axial plane of the valve housing and the auxiliary valve chamber. This minimizes flow resistance and consequently flow losses.