Spotlight Projects:

The Hopper Engineering Associates team provides practical and exciting solutions to unique problems in several industries. To showcase our recent work we choose a project of the month. An archive of previous winners can be found here.

April 2015 Project:

High Pressure Vessel Fitness for Service Evaluation
High Pressure Vessel Fitness for Service Evaluation

A high pressure vessel was found to have local erosion next to an inlet tee reinforcement and next to a weld between a channel and a tubesheet. Our client wanted to know if they can continue operation under the extant conditions without posing an imminent risk for collapse of the structure.


Our engineering team performed an FEA analysis as prescribed in API 579 "Fitness for Service" evaluation which accounts for the metal loss. It was determined that even considering the measured reduced thickness, there is ample margin against vessel collapse.

HEA has completed numerous jobs similar to the one shown above (Similar Projects)