Title
This page is meant to show how we can provide more information to the field crews.
Steps:
- Add a link to the PDR checklist that will take the user to a page (Vessel, Tank, Pipe) and to a specific "anchor".
- Create corrisponding anchors on the given pages. This allows us to add information at will.
- Incorporate the Damage Matrix to the web-page(s)
Examples of nonstandard vessels include:
a. A vessel fabricated to a recognized construction code
but has lost it’s nameplate or stamping.
The inspection interval is within the maximum permitted as long as the projected MAWP of the limiting component is not less than the lower of the name plate or rerated MAWP. The maximum inspection interval using this method is also 10 years. When problems are experienced with external
For pressure vessels that have no nameplate and minimal or no design and construction documentation, the following steps may be used to verify operating integrity:
i. Perform inspection to determine condition of the vessel. Make any necessary repairs
ii. Define design parameters and prepare drawings and
calculations. iii. Base calculations on applicable codes and standards and condition of the vessel following any repairs. Do not use allowable stress values based on design factor of 3.5
Pneumatic testing may be used when hydrostatic testing is impracticable because of temperature, foundation, refractory lining, or process reasons; however, the potential personnel and property risks of pneumatic testing shall be considered before such testing is carried out. As a minimum, the inspection precautions contained in the ASME Code shall be applied in any pneumatic testing. Before applying a hydrostatic test to equipment, consideration should be given to the supporting structure and the foundation design