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Ball valve

  • US 6,253,791 B1
  • Filed: 10/07/1999
  • Issued: 07/03/2001
  • Est. Priority Date: 10/07/1998
  • Status: Expired due to Term
First Claim
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1. A ball valve comprising a housing having three fluid openings, two of the fluid openings being arranged coaxially with one another and the third fluid opening being arranged substantially at a right angle to the two fluid openings, a ball rotatable about a longitudinal axis A and accommodated in the housing on a pair of diametrically opposed first and second bearing points which lie on the longitudinal axis A wherein the ball is sized with respect to at least the third fluid opening such that the ball is inserted into the housing from the outside thereof through the third fluid opening between the diametrically opposed first and second bearing points, and means for rotatably mounting the inserted ball in said housing which comprises said diametrically opposed bearing points which substantially eliminate lateral movement of the ball within the housing while allowing for rotational movement, wherein the second bearing point comprises a bearing element and a corresponding guide, the bearing element being arranged on the ball and the guide being arranged on the housing, the guide comprises a recess provided with an opening by which the bearing element can be inserted into the recess wherein the opening provided for the insertion of the bearing element is aligned with the third fluid opening.

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