Flue-gas desulfurisation (FGD) is a set of technologies used to remove sulfur dioxide (SO2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes. SO2 is an acid gas, and, therefore, the typical sorbent slurries or other materials used to remove the SO2 from the flue gases are alkaline (limestone slurry). InterApp has developed our range of resilient seated butterfly valve technology for these arduous applications, using our field proven FLUCAST abrasion resistant liners, with PEEK™ coated discs….. InterApp – Deeper insights, better outcomes