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SWEP Sealix® is a new BPHE range that feature a protective layer on all inner surfaces of the BPHE, resulting in enhanced behavior in terms of metal leaching, scaling, fouling and corrosion while maintaining thermal and hydraulic performance. The SXB85 combines Sealix® features with a high thermal performance in a compact geometry which offers an increased life-time solution for high-capacity water applications. All parts in contact with water are covered by the SiO₂-based layer.