Reinert-Ritz compensators for absorbing axial movements in piping systems are manufactured from homogeneously extruded half-finished materials. They are characterised by high tensile strength and a plastic compatible design. They are built to resist tensile forces in accordance with ISO 3501. These fittings can be also be subsequently integrated into a piping system via the HP flange connection. The seal system consists of the tried-and-tested, drinking water quality EPDM lip seal. An integrated clamp seat as fixation for a compensator side enables the defined axial movement to be limited to one side.