Glass-lined reactors are used worldwide, in very severe environments in chemical industries as well as for the glass layer sanitary properties in pharmaceutical industries. The requirements for glass-lined reactoGlass-lined reactors are used worldwide, in very severe environments in chemical industries as well as for the glass layer sanitary properties in pharmaceutical industries. The requirements for glass-lined reactors are reliability, safety, flexibility, efficiency, cost-effective operation and availability for industrial processes.rs are reliability, safety, flexibility, efficiency, cost-effective operation and availability for industrial processes.