| 摘要 |
A valve actuator for a valved container containing a pressurised fluid, t he actuator comprising a mounting to attach the actuator to the container, a nd characterized by a post-expansion chamber in communication with the outle t of the actuator in which residual fluid remaining in the outlet after use can expand, and a separate suction chamber in communication with the outlet conduit via a suction opening to suck residual fluid back toward the expansi on chamber.
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