FIELD: manufacturing technology.
SUBSTANCE: invention relates to a contact seal ring system. End seal includes rotating contact ring (2), stationary contact ring (3) and auxiliary seal device (5). Auxiliary seal device (5) is made as integral part and comprises auxiliary seal (51) and ring element (52) made of various materials, wherein ring element (52) is located on auxiliary seal (51) on side facing stationary contact ring (3).
EFFECT: invention ensures higher reliability of sealing.
13 cl, 10 dwg
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