Expansion valve assembly for fluid having pre-adjusted and non-user-modifiable fixed pressure

摘要

The invention concerns an expansion valve assembly for a fluid with pre-adjusted expansion comprising a main body, fluid expansion means adapted to provide a fluid expansion from a first pressure value to a prefixed pressure value, and an outlet connection (12) for delivering said fluid after expansion to the pre-adjusted fixed pressure value and comprising, arranged on said internal fluid passage, at least a coupling valve (30) mobile in translation in said first internal passage. The invention also concerns a method for connecting a user take-off point (100) to such an assembly and a fluid transfer system comprising a user take-off point and such an assembly.