Sealing device i.e. sealing plug, for use in cover to seal and insulate pipe utilized to pass e.g. gas, under pressure in nuclear power plant, has fasteners whose shape falls under parallelepipedic volume defined by orthogonal dimensions

摘要

The device i.e. sealing plug (10), has a main body (110) formed approximately in a shape of a cylinder with diameter. Multiple seal elements (120) project around a lateral wall of the cylinder so as to seal a free space formed between the main body and an inner wall of a pipe (9). The main body includes multiple fasteners to be assembled together to form the cylinder shape. Each fastener comprises a shape falling under a parallelepipedic volume that is defined by three orthogonal dimensions, where two of the dimensions have length lower than diameter of a cylinder shape of the main body.