Self-centering metal-to-metal seals for use with valves
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United States of America Patent
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Aug 15, 2017
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app pub date -
Feb 29, 2016
filing date -
Aug 27, 2015
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Abstract
An example apparatus includes a disc-shaped valve plug having a first metallic sealing surface extending circumferentially about a peripheral edge of the valve plug. The first metallic sealing surface has a first curved profile. The example apparatus further includes a valve seat defining an orifice and having a second metallic sealing surface having a second curved profile that is complementary to the first curved profile so that the first and second metallic sealing surfaces form a metal-to-metal seal when the first and second metallic sealing surfaces are in contact.
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