Ball valve seal

Patent metadata

Field	Value
Publication number	US-2016161008-A1
Application number	US-201414565019-A
Country	US
Kind code	A1
Filing date	Dec 9, 2014
Priority date	Dec 9, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

The disclosed embodiments include a ball valve seal having a main body and a seal finger extending from the main body, wherein the seal finger is configured to extend from the main body and contact and flex against an outer surface of a ball body of the ball valve seal when the ball valve is assembled.

First claim

1 . A ball valve comprising:
a valve body; a ball body disposed within the valve body; and a first seal supported by the valve body, wherein the first seal comprises;
a first main body; and
a first seal finger extending from the first main body and contacting an outer surface of the ball body.

2 . The ball valve of claim 1 , wherein the first seal comprises an annular seal having the first main body and the first seal finger.

3 . The ball valve of claim 1 , comprising a seal housing supporting the first seal, wherein the seal housing is supported by the valve body.

4 . The ball valve of claim 1 , wherein the first seal finger comprises an elongated portion extending in a radial direction configured to flex against the ball body.

5 . The ball valve of claim 1 , comprising a second seal supported by the valve body, wherein the second seal comprises a second main body and a second seal finger extending from the second main body and contacting the outer surface of the ball body.

6 . The ball valve of claim 5 , wherein the first seal and the second seal each comprise an annular configuration, the first seal is disposed on a first side of the ball body, and the second seal is disposed on a second side of the ball body opposite the first side.

7 . The ball valve of claim 6 , wherein the first seal and the second seal are each configured to be disposed about an opening of the ball body when the ball valve is in an open position.

8 . The ball valve of claim 1 , wherein the first seal is formed from titanium or cobalt-chrome.

9 . The ball valve of claim 1 , wherein the first seal, the ball body, or both comprise a surface treatment and/or a surface coating.

10 . The ball valve of claim 9 , wherein the surface treatment and/or the surface coating comprises a carbon-based material.

11 . A system, comprising:
a ball valve seal, comprising:
a main body; and
a seal finger extending from the main body,
wherein the main body is formed from a first metallic material, the seal finger is formed from a second metallic material, and the seal finger comprises a surface coating.

12 . The system of claim 11 , wherein the second metallic material comprises titanium or cobalt-chrome.

13 . The system of claim 11 , wherein the ball valve seal comprises an annular configuration.

14 . The system of claim 11 , wherein the seal finger comprises an elongated portion configured to flex against a ball body of a ball valve when the ball valve seal is installed within the ball valve.

15 . The system of claim 11 , wherein the surface coating comprises a carbon-based coating.

16 . A ball valve, comprising:
a valve body; a ball body disposed within the valve body; a first seal supported by the valve body, wherein the first seal comprises;
a first main body; and
a first seal finger extending from the first main body and contacting an outer surface of the ball body; and
a second seal supported by the valve body, wherein the second seal comprises;
a second main body; and
a second seal finger extending from the second main body and contacting the outer surface of the ball body,
wherein the first seal is disposed on a first side of the ball body, and the second seal is disposed on a second side of the ball body opposite the first side.

17 . The ball valve of claim 16 , wherein the first seal and the second seal each comprise an annular configuration.

18 . The ball valve of claim 16 , comprising a first seal housing supported by the valve body, and a second seal housing supported by the valve body, wherein the first seal is supported by the first seal housing, and the second seal is supported by the second seal housing.

19 . The ball valve of claim 18 , comprising a first back-up seal disposed between the first seal and the first seal housing and a second back-up seal disposed between the second seal and the second seal housing, wherein the first and second back-up seals each comprises an elastomer.

20 . The ball valve of claim 16 , wherein the first seal finger comprises a first surface coating, the second seal finger comprises a second surface coating, and the outer surface of the ball body comprises a third surface coating.

Assignees

• Cameron Int Corp

Inventors

• Webb Ronald Wayne

Classifications

• F16K5/0673 Primary

  Composite packings · CPC title

• F16K5/0689 Primary

  between housing and plug · CPC title

• F16K5/0678

  in which only one of the components of the composite packing is contacting the plug · CPC title

• F16K5/0668

  Single packings · CPC title

• F16K5/0657

  Particular coverings or materials · CPC title