MULTIPASS PNEUMATIC PIPE CHANGEOVER SWITCH Russian patent published in 1994 - IPC

FIELD: pipe engineering. SUBSTANCE: switch comprises carriage 1 mounted on which are straight bypass union 7 and curved side unions 8 and 9. Pipe unions are connected to rods of power cylinders and to levers. Bypass unions are brought in alignment with outlet union flanges of supercharger or unions of concrete pump are aligned with flanges of initial sections of pipelines in vertical plane by setting the travel length of drive rods and by turning the parts of levers whereas in horizontal plane, by limiters installed on guides. Curved pipe unions are made so as to ensure the shortest path for the particles of moving mixtures. EFFECT: improved design. 7 dwg