Ideal for use in demanding industrial processes: the elastomer-lined butterfly valves Desponia and Desponia plus are available in sizes DN 25 to DN 1600 (Desponia) and DN 25 to DN 600 (Desponia plus). Robust body options and a wide range of discs and liners, available in a variety of materials, make the Desponia a versatile, modular and technically superior butterfly valve with exceptional reliability and durability.