Abstract: The present invention concerns a gasket for quick couplers, in particular for the fluid tightness of the first valve of a male coupler. It is characterised in that it must be a composite gasket, having a toroidal shape and circumferentially comprising an O-Ring at its outer surface. The gasket according to the present invention allows a number of advantages to be achieved in terms of the stability and greater reliability of the gasket, which is not subject to extrusion and crushing phenomena during the coupling and decoupling steps of the pressurised coupler.

Abstract: The present invention concerns a gasket for quick couplers, in particular for the fluid tightness of the first valve of a male coupler. It is characterised in that it must be a composite gasket, having a toroidal shape and circumferentially comprising an O-Ring at its outer surface. The gasket according to the present invention allows a number of advantages to be achieved in terms of the stability and greater reliability of the gasket, which is not subject to extrusion and crushing phenomena during the coupling and decoupling steps of the pressurised coupler.

Abstract: The present invention relates to a female coupling of the screw type comprising a ball bearing which guarantees the rotation of the block intended to couple the male coupling with respect to the block which can be gripped by the user and connected to the line. In particular, the present invention is characterized in that said female coupling is configured so as to facilitate the assembly of the bearing in the female coupling. The female coupling according to the present invention is further characterized in that the bearing is maintainable by the end user.

Abstract: A hydraulic assembly comprises a one-piece body attachable to the outside of the hydraulic machine near the hydraulic equipment and provided with at least one input hydraulic linkage connectable to a pressure line of the hydraulic circuit of the vehicle, at least one coupling suitable for the connection with a feeding input of a removable equipment and a pressure discharge hydraulic linkage connectable to a draining line, at least one normally closed discharge valve positioned between the linkage to a pressure line and the linkage to a draining line and a pressure discharge control operable so as to cause the opening of the at least one normally closed valve for the connection the pressure line to the draining line for discharging the pressure existing in the hydraulic circuit of the vehicle.

Abstract: There is described a hydraulic connection assembly with a pressure discharge control, which is positionable between an onboard hydraulic circuit of an engineering vehicle and a removable hydraulic equipment.