Abstract: A valve shifting system is described for connecting a first conveying line selectively between two or more additional conveying lines. The system includes a conveying line connector mounted on a frame and connected to the first conveying line. A switching plate, also mounted on the frame, has ports therethrough for connection in communication with these additional conveying lines. An arm is slidably engaged to the switching plate and connected to the conveying line connector in a manner permitting rotation and longitudinal motion of the arm as it slides upon the switching plate. The system also includes a pivot tube which is coupled at one end to the arm which at the opposite end is coupled to the conveying line connector. A continuous passageway for the flow of material therethrough is formed from the first conveying line through the pivot tube and switching plate to the selected additional conveying line.