Pneumatic connection system for connecting solenoid valve to vacuum system in e.g. motor vehicle, has downstream connection that is not placed in contact with depression zone of solenoid valve

摘要

The system has upstream and downstream connections (20, 30) comprising ends for piercing an external envelope of a cap (11) of a solenoid valve (10). The solenoid valve comprises a depression zone (13) and an atmospheric pressure zone (14) sealed with respect to each other, and respectively placed in contact with upstream and downstream connections. The shape of the zones and the different shapes of the connections are such that the downstream connection is not placed in contact with the depression zone. The connections are made of hard plastic material.