Expansion valve fitted with a connector that is designed for the connection of a user socket

摘要

The invention relates to a fluid expansion valve (50) comprising a main body (30) with an internal fluid passage (32, 32a, 32b) and an outlet connector (1). Said outlet connector is used to deliver the expanded fluid and is provided with an external profile that is suitable for the connection of a user socket having an internal profile that is adapted and/or complementary to the external profile of the connector. The outlet connector (1) comprises at least three cylindrical connection sections (P1 to P3) which are arranged in succession from the outlet end (11) of said outlet connector (1) to the connection end (10) of the outlet connector (1) on the body (30) of the expansion valve. Said connection sections (P1 to P3) are provided with increasing external diameters (D1 to D3). The invention also relates to the use of one such expansion valve to deliver a pressurised gas that is intended to pressurise a food drink, particularly beer or soft drinks. Moreover, the invention relates to a fluid transfer system comprising one such expansion valve and a connector socket having a complementary internal profile.