FIELD: process engineering.
SUBSTANCE: set of invention relates to sprayers of compressed medium, for example, one-component polyurethane foam. Gasket 2 for container aerosol valve defining channel 3 that has inlet end 4 and outlet end 5 comprises first part 7 arranged at said inlet end 4 and second part 8 arranged at said outlet end 5. Note here that hardness of said first part exceeds that of second part 8.
EFFECT: reliable and safe operation.
15 cl, 19 dwg
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