Patent ID: 6572077
Filing Date: 2003-06-03
Classification: F16K

Abstract:
A double safety magnetic valve comprising:a housing: first and second valves both being accommodated in said housing, where said first and second valves further include first and second corresponding axially displaceable valve disks which are disposed coaxially to one another and each lifts from its respective valve seat through an axial movement in the opening direction against the spring pressure of a first and second closing spring respectively, wherein: the first valve disk being the first one in flow direction of the double safety magnetic valve surrounds the second valve disk and both their valve seats are combined to a single common valve seat, which surrounds the only valve opening, and the second closing spring of the second valve disk is supported on the first valve disk or on an actuator element that axially moves the first valve disk, the surface of the common valve seat between the first and second valve disks being flat; the second valve disk further comprises a magnetic armature and the first valve disk is motion-coupled with the second valve disk in the opening direction, wherein the magnetic armature is coupled to axially move the second valve disk in the closing direction independent of the first valve disk.