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Braided high-temperature packing comprising a core of folded flexible graphite sheet
Braided high-temperature packing comprising a core of folded flexible graphite sheet
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机译:编织高温填料,包括折叠的柔性石墨片芯
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摘要
A high temperature, high pressure resistant packing (e.g., for the packing gland of a valve stem) has a core of density 1.3-1.6 gm/cc that includes a plurality of strands, each strand including a flexible graphite tape, longitudinally corrugated and folded into at least two longitudinally extending partially superimposed layers. Preferable, each strand is overknitted with a reinforcing wire, the strands in the core are braided, and a jacket, which includes a carbide fiber, an inorganic fiber, and a phenolic fiber, is disposed about the core.
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