METHOD OF SECURING PIPES IN PIPE PLATE Russian patent published in 1997 - IPC

FIELD: power engineering. SUBSTANCE: pipe having outer projections is received in the opening of the pipe plate provided with ring grooves. The pipe is then locked against axial movement and secured to the pipe plate by axial pressing from the inner side of the pipe. The ring projections are arranged opposite to the ring grooves, and being received in the ring grooves the ring projections are secured. The cross-section of the ring projections is a trapezium. The length of the line joining midpoints of two sides of the trapezium is equal to the width of the ring groove in the pipe plate. EFFECT: enhanced strength and pressure-tightness. 4 dwg