HERMETIC SEAL OF VESSEL OPERATING UNDER PRESSURE

摘要

A hermetic sealed of the vessel operating under pressure is arranged as cover flange of which is connected to flange of vessel and equipped with circular pressing pin that rests on non-metal gasket arranged as a ring placed in annular groove at the flange of the vessel. The flange of the cover is equipped with circular protective pin height of which is larger than height of the circular pressing pin. The circular protective pin is placed concentrically inside the circular pressing pin and in cross section it is a trapezium inclined side of which is placed with possibility of interaction with the inner edge of the vessel flange when it connects with the cover flange.