Key Features
- Fiberglass Shell: Thick FRP laminate with weather-resistant gelcoat.
- Liners Available: FRP (or PVC/PP) liners to protect even steel or concrete stacks.
- Modular Design: Fabricated in sections for on-site erection.
- Structural Support: External steel frames or guy-wires as required for tall structures.
Benefits
- Durability: FRP stacks outlast metal stacks in corrosive settings. Proven service of 30+ years in many installations.
- Low Maintenance: No painting; roughness stays constant. Inspectors often find minimal wear after years of exposure.
- Thermal Insulation: Fiberglass has low thermal conductivity, reducing condensation issues.
Applications
Used as final exhaust stacks for power plants, especially those with wet FGD. Also used as air emission chimneys in chemical plants. FRP stacks often accompany FRP scrubbers and ducts to form a completely composite FGD exhaust train.
Technical Specifications
- Height: Typically 30m–100m (components joined by flanges). Full FRP stacks usually <100m per Fiberrace guidance.
- Design Wind Loads: Engineered for local wind speed. Seismic considerations included as needed.
- Lining: Internal FRP liner thickness ~6–8mm; external FRP wall ≥10mm.
Unique Selling Points
Our FRP chimneys are engineered per international standards. Clients benefit from decades of FRP stack expertise: for example, Plasticon Projects has supplied FGD stacks across Europe and Asia since the 1980s. We also offer combined FRP-steel designs: a steel support structure with a full FRP liner. In all cases, FRP ensures “extremely little maintenance” over the stack’s lifetime.