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SWEP Sealix®¹ 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 and corrosion while maintaining thermal and hydraulic performance. The SXB15T combines Sealix® features with excellent heat transfer offering an increased life time solution for water applications. All parts in contact with water are covered by the SiO₂-based layer.