Expansion joints installed in many industrial facilities provide engineered solutions for thermal expansion, piping fit-up, equipment nozzle loads and vibration isolation issues. Despite the almost ubiquitous presence of expansion joints in process and manufacturing plants, safe operating principles and the effect of pressure thrust on joint integrity is not well understood.

A white paper published by the American Society of Mechanical Engineers (ASME) explains basic design principles of pressure thrust and how expansion joints affect it. Learn how lack of pressure thrust understanding can cause personnel safety and equipment damage issues. Examples illustrate how the concept of pressure thrust has not been understood and unfortunately has resulted in significant loss of life.

Guidance is also provided on selecting the right expansion joint and using it properly. The advantages and disadvantages of different types of expansion joints, including bellows, slip or packed and fabric, are outlined. Key takeaways include knowing how to calculate pressure thrust and understanding layout options so that pressure thrust and thermal expansion can be effectively handled.