Like all materials, pipe experiences dimensional changes as a result of changes in temperature, expanding when heated and contracting when cooled. The key to accommodating thermal expansion and contraction in a piping system is to allow predictable and controlled piping-system movement. Inadequate movement accommodation can cause excess stress on a piping system, resulting in ruptures and leaks; increased stress on boilers, chillers, valves, and other equipment/components; and escalating ...

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