Hybrid Algorithm for Hammerstein System Identification Using Genetic Algorithm and Particle Swarm Optimization

The invention relates to a sealing flange (14) which comprises a tubular structure which has an axis (22) and consists of an integral tubular outer body (20) which contains a series of annular seals (32a, 32b, 32c, 32d) which are disposed substantially coaxially according to the axis, these seals being suitable for surrounding a tube when the latter is inserted in the structure. The invention applies in particular to repair of gas pipes.