FIELD: engineering elements.
SUBSTANCE: invention relates to ball valve sealings. The ball valve sealing comprises an elastic ring forming an engaging element. The seal also comprises a first polymer ring located adjacent to the first longitudinal end of the elastic ring and coupled with the engaging element. The sealing also comprises a second polymer ring located adjacent to the second longitudinal end of the elastic ring and coupled with the engaging element. The first polymer ring therein comprises a first compatible engaging element configured to engage with the engaging element of the elastic ring. The first compatible engaging element therein comprises a groove configured to engage with the engaging element of the elastic ring. Also described are a polymer sealing ring and a method for assembling a sealing assembly.
EFFECT: invention is aimed at preserving the effective structural integrity of the ball valve at elevated pressure.
13 cl, 4 dwg
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