Dual slide gate valve and method for using same

  • US 7,398,675 B1
  • Filed: 02/13/2006
  • Issued: 07/15/2008
  • Est. Priority Date: 04/11/2001
  • Status: Expired due to Fees
First Claim
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1. A kit for testing for leaks in a pipe line, comprising:

  • a main fitting having two ends each adapted to connect to an end of a pipe and align a fluid passage of the pipe with a fluid passage extending through the main fitting during use of the kit, the main fitting having a port opening on an exterior side of the fitting;

    a first test slide having a periphery corresponding in shape to a periphery of the fluid passage through the fitting, the first slide sized and configured to be removably inserted through the port to partially block fluid flow through the fitting, the first slide having a recess therein extending over a portion of the first slide that is positioned within the fluid passage, the first slide having a first hole through the slide located to be placed in the fluid flow path of the fitting when the first slide is inserted into the fitting;

    a second pressure release slide sized and configured to be received within the recess in the first slide and movable between a first position blocking the first hole sufficient for testing the line for leaks, and a second position allowing sufficient fluid flow through the first hole sufficient to relieve the pressure used to test the line.

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