Patent ID: 9671021
Date: 2017-06-06
CPC Classifications: F16J,F16L

Claim:
1. An arrangement comprising: a biconical annular seal including a laid down V shaped cross-section, in an annular groove having a trapezoid shaped cross-section, a small base of the trapezoid corresponding to a cylindrical bottom of the groove and being radially inwardly open at a great base of the trapezoid, and a first side wall of the trapezoid is provided in a first flange and a second side wall of the trapezoid is provided in a second flange, wherein the seal includes a radially outer annular heel and two generally conical annular wings extending radially inwardly from the heel, an inner radial end of each wing being axially bearing against an associated wall of the groove, and wherein the seal is mounted in the groove such that the heel of the seal is located radially distal to a bottom of the groove so as to present a radial clearance between the heel of the seal and the bottom of the groove, when the first and second flanges are fixed to each other and the seal is mounted in the groove.