In coal-fired power stations, flue gas desulphurisation plants are standard. For more than 30 years, CERA SYSTEM has been supplying valves for controlling abrasive slurries such as limestone / limewater suspensions. The pneumatic transport of fly-ash can likewise be continuously ensured using ceramic valves and pipe wear protection. Coal gasification and liquification plants are fitted with ceramic pressure-release and flashing systems. Even in biogas facilities, we have our first references for partial-ceramic and ceramic valves, and for ceramic pipe wear protection.