Charles Ross & Son Co.: The new B-Blenders will blend materials up to 32 lbs. cu. ft. They are available in working-capacity sizes of 10, 18 and 36 cu. ft. Manually operated knife gate valves located in the bottom center of the trough are included. Standard options include sanitary stuffing boxes, jackets for heating or cooling, vacuum or pressure design, sanitary designs, covers to meet customers’ production needs and special controls for full-load starting.