Work with ASME and API and develop a white paper to the Valve Manufacturers Association of America addressing the issue of plug valve design with a focus on the following:
a. Recommend as an industry good practice that facilities using plug valves establish written procedures detailing the correct way to remove the plug valve actuator or gearbox for each specific plug valve design.
b. For existing plug valves, recommend as an industry good practice for facilities to clearly mark all pressure-retaining components (for example, with paint, accompanying warning signs, etc.). Work with ASME and API to ensure a consistent methodology is specified to the industry.
c. Recommend new plug valves be designed, consistent with Prevention through Design principles, to prevent the inadvertent removal of pressure-retaining components when removing the actuator or gearbox. Evaluate past plug valve incidents, and the associated plug valve designs involved in those incidents, when formulating a new plug valve design recommendation. Work with ASME and API to ensure a consistent design is recommended to the industry.