Pennwalt Ltd. Offers Decanter Centrifuge with Centrifugal Solid-Liquid Separation. Pennwalt Ltd. Supplies anti-corrosive fluoropolymer coatings, linings, fabrication and welding of chemical process equipments. The Decanter Centrifuge with Centrifugal Solid-Liquid Separation is a specially developed continuous Solid-Bowl horizontal Scroll Discharge centrifuge for effective separation of slurries into clarified liquid and dewatered cake solid phases, with the application of centrifugal sedimentation principle.