Framing a new design mindset around fiberglass reinforced plastic piping - Plant Engineering
What happened
The article explains why fiberglass reinforced plastic (FRP) piping behaves differently from steel and why expansion joints and supports must be specified and installed differently. It highlights FRP’s larger axial thermal movement and the need for lower spring‑rate joints and tight alignment tolerances. Watch whether manufacturers and projects begin repackaging joint kits and installer qualifications to match FRP practice
Why the category manager should care
Reclassify expansion joints, supports and associated spares when FRP is on scope; standard steel specs will underperform and drive emergency repairs
Key facts
- FRP expands at roughly twice the axial rate of steel
- Industry practice recommends tight alignment tolerances at joints