METHOD OF SELF-PACKING OF FLANGE CONNECTION Russian patent published in 2012 - IPC F16J15/48 F16L23/02 

FIELD: mechanical engineering.

SUBSTANCE: flange connection consisting of flanges and end semi-rings has a ring cavity. While the flanges are separated and the semi-rings are opened, the ring cavity is provided with gasket rings, a thrust ring and a model separator having gasket ring seats and a separator seat in the ring cavity. A pre-assembly change unit is made of the gasket rings and the separator. The flanges are pulled together, and the gasket rings are facially compressed thereby providing low and rise pressure packing. The pulled flanges are closed by the semi-rings. Pressure rise is generated by the gasket rings compressed in assembly. Further pressure rise involves a push ring displacing and strengthening compression of the gasket rings thereby providing self-packing of the flange connection.

EFFECT: invention provides higher packing reliability of the flange connection.

5 cl, 14 dwg