Method and apparatus for extrusion of food products including back pressure valve/diverter

摘要: An extruder system (10, 124) for the processing of feed materials is provided including an (12), adjustable back pressure valve assembly (14) and a superatmospheric post-extrusion product treatment (16, 124). The includes member (48) which can be shifted to alter effective cross-sectional open area passageway (36), alternately diverting position wherein diverted from downstream processing. (16) sealed housing (78) directly coupled so that emerging passes into without experiencing atmospheric pressure. (124) product-guiding cowlijng (128) atmosphere, together with (134) effecting above extruded product.