ИСТИНА

FIELD: sealing technology. SUBSTANCE: sealing ring is formed by winding the expanded graphite tape whose surface are embossed. These surfaces are also provided with continuous grooves along tape; grooves on one surface are located between grooves on opposite surface; depth of grooves does not exceed half thickness of tape but is no less than depth of embossing. Sealing ring is formed in closed volume at specific load ranging from 1 to 3 MPa. EFFECT: enhanced reliability. 2 cl, 3 dwg