Elliptical ball valve seal

  • US 10,883,613 B2
  • Filed: 04/27/2018
  • Issued: 01/05/2021
  • Est. Priority Date: 04/27/2018
  • Status: Active Grant
First Claim
Patent Images

1. A valve seal, comprising:

  • a tubular member defining an inner flow passage with an elliptical cross-section in a longitudinal direction;

    a downstream end of the tubular member having an annular flange having a flat face in communication with the inner flow passage; and

    an upstream end of the tubular member having a contoured sealing face having a hemispherical profile opposite the annular flange and in communication with the flow passage, in which the contoured sealing face is configured for sliding engagement with a spherical valve member, and the inner flow passage extends from the flat face to the contoured sealing face.

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