Ideal for use in corrosive and aggressive media, in potentially explosive atmospheres and in high-purity applications: the Bianca PTFE-lined butterfly valve is available in sizes DN 32 to DN 900 with a body made of ductile iron or stainless steel and various liner and disc materials. It is ideal for long-term use in demanding media and environments such as the semiconductor industry, hydrogen production, the chemical and petrochemical industries, the mining industry and life science applications.