Patent attributes
A quick coupling device for pressurized fluid, comprising a male coupling (2), a first adapter (36) applied to said male coupling (2) for connection to a first external element, a female coupling (1) associable with the male coupling (2), a second adapter (20) applied to said female coupling (1) for connection to a second external element, at least one adapter (36, 20) being made as an axially hollow piece exhibiting a first portion (100) having a cylindrical external cross section and at least a second portion (101) coaxial to the first portion (100) and having a polygonal external cross section, the polygonal external cross section of the second portion (101) being inscribed along the axial generatrices of the cylindrical external cross section of the first portion (100).
