METHOD OF ASSEMBLY OF RECEIVING AND STARTING CHAMBERS OF FLOW DEVICES INTO PIPE LINES Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: first, end gate is assembled and prepared; then gate provided with technological branch pipe is welded to housing of chamber. After assembly, gate is welded to hydraulic test stand. Upon completion of tests, gate is cut off stand and ends of branch pipe are prepared for welding at the Manufacturing plant. Welding the branch pipe to housing is effected under field conditions. Diameter of branch pipe shall correspond to diameter of chamber and its length shall be no less than 400 mm. EFFECT: enhanced reliability. 2 cl, 3 dwg