Systems for manufacturing bulked continuous carpet filament from polymer, where the systems are configured for: (1) passing polymer flakes through a crystalliers; (2) melting the polymer to create a first single stream of polymer melt; (3) separating the first single stream of polymer melt into multiple streams of polymer melt; (4) exposing the multiple streams of polymer melt to a pressure of between about 0 millibars and about 25 millibars in a chamber; (5) recombining the multiple streams of polymer melt into a second single stream of polymer melt; and (6) providing the second single stream of polymer melt to one or more spinning machines that are configured to form the second single stream of polymer melt into bulked continuous carpet filament.

A planetary roller extruder for homogenizing, dispersing, pasteurizing, and purposefully controlling the temperature of biodegradable materials that are prone to altering their properties during processing, in particular the properties that rule out further use after the materials have been processed, such as food, medicinal products or pharmaceutical products, different regions being present in the planetary roller extruder. The planetary roller extruder includes a flow conduit having various transitions from one region to a next region in an interior and components being statically and movably installed. A seal is installed between statically installed components, by which seal gaps or cavities present are configured to be closed. A slide ring seal provides sealing between moving components, which are led from the flow conduit in the interior outward to a surrounding area, so as to avoid steps and/or notches along flow surfaces in a transition region of the moving components.

A planetary roller extruder for homogenizing, dispersing, pasteurizing, and purposefully controlling the temperature of biodegradable materials that are prone to altering their properties during processing, in particular the properties that rule out further use after the materials have been processed, such as food, medicinal products or pharmaceutical products, different regions being present in the planetary roller extruder. The planetary roller extruder includes a flow conduit having various transitions from one region to a next region in an interior and components being statically and movably installed. A seal is installed between statically installed components, by which seal gaps or cavities present are configured to be closed. A slide ring seal provides sealing between moving components, which are led from the flow conduit in the interior outward to a surrounding area, so as to avoid steps and/or notches along flow surfaces in a transition region of the moving components.