A significant liquid hammer event on a flair line at the top level of a pipe rack resulted in pipe movement at the expansion loop. The 18” stainless steel flair line had welded shoes with horizontal guides to restrict line movement. Two support locations immediately before and after the expansion loop received damage as the line moved horizontally out of position.

For support of pipe where longitudinal movement may occur due to expansion and contraction and where vertical adjustment is not necessary

Special Clamp Shoe Support

Designed for use in directing thermal expansion of insulated or non-insulated pipe in the direction permitted by expansion joints or loops

Adjustable Pipe Roll Stand with Base

PSA have a broad range of experience in many aspects of piping engineering and pipe stress analysis. Through our pipe stress analysis services, we can help you design a safe and efficient piping system that’s built to last.

Pipe stress analysis expertise
We are highly experienced in working on the entire lifecycle of many piping installations, and therefore have a great understanding of all aspects involved from initial concept to completion.
This makes us well-positioned to offer detailed pipe stress analysis services to our clients. We have the ability to identify potential piping challenges and determine the root cause of the problem, before proposing a fully engineered solution.
Our pipe stress analysis services include:
1-Static & dynamic thermal stress analysis for given load cases
2-Analysis of occasional conditions such as wind loads & pressure relief valve loads
3-Nozzle assessments including nozzle loads, stiffnesses and local stress analysis
4-Assessment of design modifications including expansions joints, spring supports, ...
5-Pipeline lifting assessments
6-Structural support Analysis and detailed design of piping supports
7-Seismic analysis
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Shell and Tube Heat Exchanger

Spring support failure due to thermal displacement and friction load

Pipe hangers and supports, which support piping from above (hangers) or below (props), alleviate stress on pipes as they transport fluids from one location to another. An improper supporting system spaced too far apart adds stress to piping and may cause damage to the entire system, leading to fractures, sagging pipes, and leaks.