Patents Assigned to Thompson Valves LTD
  • AUTOMATED VALVE TESTING APPARATUS
    Publication number: 20110114191
    Abstract: A method for partially stroking an emergency valve apparatus is provided. The emergency valve apparatus comprises an actuator (103) and a valve member (101). The apparatus is movable between a first position and a second position. The method comprises the step of initiating a partial stroke movement of the apparatus from the first position towards the second position. A parameter of the fluid acting on the apparatus is measured. Once the measured parameter reaches a threshold value, the partial stroke movement is reversed.
    Type: Application
    Filed: July 25, 2008
    Publication date: May 19, 2011
    Applicants: Norgren Limited, Thompson Valves LTD
    Inventors: Christopher John Wheater, David Horsfield