ES190096U - A valve of retention. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A check valve, characterized by being constituted by a cylindrical valve body open at its ends and equipped therewith with female threads for coupling to the conduction and in which its middle or internal area is provided with a projection toward the interior in the form of a circular crown constituting the seat of the valve, this latter comprising a conical piece with its base facing the projection of the valve body and provided with a plurality of fins whose ends are joined by a threaded crown for fixing this piece to the valve body, the fixing can be ensured by subsequent welding, said part being provided with a cylindrical recess in its base for coupling, a moving part with aerodynamic head provided with an O-ring housing on its perimeter and a central cylindrical stem that houses a pressure spring and slides inside the emptying of the conical piece, centered and limited or in its movements by the same and in such a way that being totally independent the position of the valve, whether horizontal, vertical, inclined or inverted, the fluid of the conduction exerts a pressure on the aerodynamic head of the moving part, overcoming the tension of the spring placed inside its cylindrical shank and allowing the passage of the fluid through the fastening vanes of the valve to the body of the same, until for some reason the tension of the spring is higher than the pressure of the fluid, moment in which said spring causes the moving part to retreat, which, by applying the O-ring on the breath projection of the valve body, will close the passage and prevent the direction of return of the fluid. (Machine-translation by Google Translate, not legally binding)