Expanded by steam in pipe repair, which lining material is used?

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Multiple Choice

Expanded by steam in pipe repair, which lining material is used?

Explanation:
In steam-expanded pipe repair, the lining material must be able to be placed inside the existing pipe and then expand or cure to create a tight, continuous bore. PVC liner fits this need because it is a flexible thermoplastic liner that can be inserted into the damaged pipe and expanded or cured with heat to press firmly against the interior walls, forming a smooth, corrosion-resistant surface that restores flow. The other materials don’t work as well in this method: fiberglass sleeves are more rigid and not typically expanded by steam to fit perfectly; copper tube is a replacement option rather than a lining; rubber liners may not withstand the steam temperatures or long-term service. Therefore, PVC liner is the appropriate choice for this technique.

In steam-expanded pipe repair, the lining material must be able to be placed inside the existing pipe and then expand or cure to create a tight, continuous bore. PVC liner fits this need because it is a flexible thermoplastic liner that can be inserted into the damaged pipe and expanded or cured with heat to press firmly against the interior walls, forming a smooth, corrosion-resistant surface that restores flow. The other materials don’t work as well in this method: fiberglass sleeves are more rigid and not typically expanded by steam to fit perfectly; copper tube is a replacement option rather than a lining; rubber liners may not withstand the steam temperatures or long-term service. Therefore, PVC liner is the appropriate choice for this technique.

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