Piping Design for Removal of Expansion Joints Case Study

Problem

Due to changes in regulations, the client needed to replace expansion joints installed in process transport piping with hard piping components. KHE was contracted to design a new piping system to mate with the existing tanks and pumps while providing sufficient flexibility for reliable operation.

Solution

KHE conducted a series of site visits to develop “as-built” drawings of the various runs of pipe. We used pipe stress analysis to analyze the existing piping with the expansion joints simply removed. Using the same method, we developed pipe modifications to incorporate the required flexibility while insuring the equipment loadings were within acceptable limits. Working with facility personnel, KHE developed piping isometrics to not only reliably replace the expansion joints, but also to improve operations and equipment access. Detailed drawings were provided to the client.

Results

The client’s emission exposure was greatly reduced, which allowed them to comply with the new federal and state regulations. The new design greatly improved the reliability and accessibility of the equipment, thus reducing the long-term cost of ownership.