FIELD: machine building.
SUBSTANCE: proposed valve comprises body with two ring-shape seats accommodating spherical shutoff member engaged with its rotary drive. Every said seat is made of foil including layer of TEG with at least one fused carbon bundle uniformly distributed over its width owing to coiling with compaction along ring axis.
EFFECT: higher wear and erosion resistance and reliability, longer life.
2 cl, 2 dwg
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Authors
Dates
2013-12-27—Published
2012-08-20—Filed