Canada Piping Engineering Services

“WHAT IS REQUIRED FOR ME TO BE SAFE STANDING NEXT TO THIS PIPE WHILE IT IS OPERATING?”

A special caution for plant modifications: A system that is modified needs to be completely reconsidered, even if only a small section of pipe is being replaced. The assumptions that may have been entirely appropriate for the original design may be violated by what is seemingly a minor change. Most petrochemical plants have a formal Management of Change (MOC) procedure to consider these issues. The procedure is extremely important. If an engineer is working on a plant without a formal MOC approval procedure, the engineer should assure that the entire piping system is still acceptable when a design or operational change is being made.

Pipe stress analysis results are only approximate models compared to actual installed systems. The great variety in components, materials, fabrication and supports leads to this inherent inaccuracy. For this reason, it is always recommended to be conservative in evaluating pipe stresses and movements. If a small increase in pipe stress would cause an excessive stress, or a small increase in loads would over load a nozzle, if at all possible, it is best to make modifications to increase the safety margin.

“To assure the installed pipe will perform reliably and safely in all expected conditions for its design life”

“WHAT IS REQUIRED FOR ME TO BE SAFE STANDING NEXT TO THIS PIPE WHILE IT IS OPERATING?”

Are you looking for the reliable partner for the stress analysis of the piping system at your Client’s plant or refinery ? We are here to help. littlepeng.com

Are you looking for the reliable partner for the stress analysis of the piping system at your Client’s plant or refinery ? We are here to help. littlepeng.com