Valve for the metering of highly pressurized fluid

A seal assembly for a connector of a fluid supply line, comprising:

• an inlet connector that can be placed in a connection socket of a fluid supply line;
• and
• a sealing assembly situated on the inlet connector, the sealing assembly having an elastically deformable sealing ring and a support ring made of plastic, the sealing assembly being supported on a radial support shoulder present on the inlet connector and sealing against the connection socket, the support ring being situated between the sealing ring and the support shoulder and being made of an elastically deformable plastic material, the support ring being made such that under a fluid pressure acting on the sealing ring, the support ring experiences an elastic deformation that brings about a gap-free radial seating on the inlet connector and the connection socket;
• wherein the elastic deformation of the support ring is brought about through a constructive design of the support ring;
• wherein the support ring has two frustum-shaped end faces parallel to one another, and an outer and an inner ring surface, one of the ring surfaces is made cylindrical and one is made conical in such a way that of the two frustum-shaped end faces limited by the ring surfaces, one of the frustum-shaped end faces has a smaller surface than does the other of the frustum-shaped end faces, and the support ring is situated on the inlet connector in such a way that the smaller-surface frustum-shaped end face is oriented toward the support shoulder;
• and
• wherein the inner ring surface is cylindrical, and the outer ring surface runs conically in such a way that the smaller-surface frustum-shaped end face has a smaller outer diameter compared to the larger-surface frustum-shaped end face.