The piece shown at left is the “stabilizer” and it removes the need for a mounting/valve cup.
The stabilizer serves as the upper-valve housing, while the rest of the valve is mounted in the usual manner. The stabilizer is part of the valve containing the stem, gasket, spring and under valve housing. It is pushed into the can with a force of 900 newtons and 12,5 mm. This creates a tight seal inside the can. (There is also a version with an O-ring seal for higher pressures.) It also works normally for open can filling. The stabilizer makes filling the can easier and removes the need for a complex crimping station at the filling plant.
Instead of the industry-standard expensive aluminium or tinplate disc, the stabilizer is made of PA 6.6. The construction of the stem, steam seal, and spring is identical to standard valves.
Aluminium & PET Aerosol Cans
The specially-designed aluminium cans are tailor-made and differ slightly in appearance to traditional aerosol cans, but use the same machinery for production. The only difference is how the necking process is done. Any can manufacturer can produce these cans. This same necking is also applicable to PET Aerosol cans.