AEROSOL CONTAINER AND VALVE ASSEMBLY Flashcards
Pressurizable containers
Glass
Tin
Aluminum
High aesthetic value & minimal incompatibilities; use is limited to products w/ low pressure & propellant percentage
Glass
Prone to breakage
Glass
Plated steel
Tin
Light & relatively inexpensive
Tin
Most widely used container
Tin
preferred for use w/ most MDIs, strong & less reactive than the other metals
Aluminum
Seamless and more inert
Aluminum
Most basic part through which the contents of the package are emitted;
Valve
Regulates the flow of product from the container
Valve
Valve is either _ valve or _ valve.
Spray or foam valve
To permit expulsion of the contents of the can in the desired form at the desired rate, & in the case of metered valves, in the proper amount of dose.
Valve assembly
Parts of Aerosol Valve Assembly
Actuator
Stem
Gasket
Spring
Mounting cup
Housing
Dip tube
Being pressed for emission of the product
Actuator
Allows the product to be dispensed in the desired form, & in a rapid & convenient way
Actuator
Permits easy opening & closing the valve
Actuator
Supports the actuator & delivers the formulation in the proper form to the chamber of the actuator
Stem
placed snugly w/ the stem, prevents leakage of the formulation when the valve is closed
Gasket
holds the gasket in place & is the mechanism by which the actuator retracts when pressure is release, returning the valve to the dose position
Spring
attached to the aerosol can or container, hold the valve in place
Mounting cup
directly below the mounting cup, links the dip tube & the stem & actuator
Housing
Extends from the housing down into the product; brings the formulation form the container to the valve
Dip tube
