Abstract: A structural chassis for a pipe repair stent includes a first reinforcement ring configured to be received in a first circumferential groove of a gasket; a second reinforcement ring, wherein a chassis axis extends centrally through the first reinforcement ring and the second reinforcement ring, the second reinforcement ring axially spaced from the first reinforcement ring and configured to be received in a second circumferential groove of the gasket; a first groove cover axially aligned with and disposed radially outward of the first reinforcement ring, relative to the chassis axis, to cover and protect the first reinforcement ring; and a second groove cover axially aligned with and disposed radially outward of the second reinforcement ring, relative to the chassis axis, to cover and protect the second reinforcement ring.