Bellows mechanical shaft seals R-10T, 10R for chemical pumps. PTFE seals are designed for extremely aggressive applications. For use in neutral and corrosive environments: strong acids, organic compounds, saline solutions. Rotating bellows made of various grades of fluoroplastic. Friction pairs made of graphite, silicon carbide and other materials.
Analogue of mechanical seals: John Crane 10T/10R.