| 摘要 |
A metering valve for dispensing an aerosol, includes a metering chamber and a valve stem. The valve stem is equipped with one end disposed on the side of a container and a dispensing end mounted in the metering chamber such that it can slide under the force of a spring between a first high position, known as the rest position, and a second position, known as the intermediate position for filing the metering chamber. The final low position is defined when a shoulder provided on the valve stem abuts against a shoulder provided inside the metering chamber. |
