Boronized valve seal
First Claim
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1. A control valve comprising:
- a first component defining a first surface, the first surface component comprising a steel material;
a second component defining a second surface, the second surface component comprising a steel material; and
a seal disposed between the first and the second surfaces, the seal comprising a boronized graphite material.
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Abstract
A control valve includes a first component, a second component, and a seal disposed there between. The first component defines a first surface that comprises a steel material, and the second component defines a second surface that comprises a steel material. The seal is disposed between the first and the second surfaces and comprises a boronized graphite material.
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Citations
24 Claims
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1. A control valve comprising:
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a first component defining a first surface, the first surface component comprising a steel material;
a second component defining a second surface, the second surface component comprising a steel material; and
a seal disposed between the first and the second surfaces, the seal comprising a boronized graphite material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A seal for a control valve comprising:
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a generally cylindrical body constructed from a boronized graphite material, the body including, an upper surface and a lower surface oriented generally parallel to each other, cylindrical inner and cylindrical outer surfaces substantially concentric to each other and generally perpendicular to the upper and the lower surfaces, wherein the outer surface engages a first component and the inner surface slidingly engages a second component. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A seal for a control valve comprising:
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a generally cylindrical body constructed from a boronized graphite material, the body including, an upper surface and a lower surface oriented generally parallel to each other, cylindrical inner and cylindrical outer surfaces substantially concentric to each other and generally perpendicular to the upper and the lower surfaces, wherein the upper surface engages a first component and the lower surface engages a second component. - View Dependent Claims (17, 18)
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19. A method of sealing a valve comprising:
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providing a valve cage constructed from metal having an inlet, an outlet, and a pathway therebetween;
providing a plug disposed in the valve cage, for opening and closing the pathway; and
inserting at least one boronized graphite seal between the valve cage and the valve plug. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification