The encapsulated Back-To-Back Double Seal is specifically designed for viscous and slurry product applications, making it excellent for the pulp and paper industry, as well as for abrasives and light corrosives applications. It is structured like a mixer seal to ensure the highest seal performance, operating with two seals back-to-back in a unique compact cartridge design. This seal utilizes API Plan 53, featuring higher barrier fluid pressure for enhanced reliability. Additionally, its powerful pumping ring with a wide flow efficiently removes heat, allowing it to operate effectively under API Plan 53 with higher barrier fluid pressure.