FRP Dampers & Expansion Joints
Crimar supplies FRP isolation dampers, seal (guillotine) dampers and flue-gas expansion joints for corrosive duct and scrubber systems — including a program of over 100 flue-gas expansion joints installed across three U.S. states.
Applications
- Flue-gas isolation & diverter dampers
- Seal (guillotine) dampers
- Duct & scrubber expansion joints
- FGD & emission-control systems
Specifications
- Manual or actuated operation
- Single- and double-blade designs
- Fabric and molded-FRP expansion joints
- Corrosion-resistant FRP & alloy hardware
Standards
- Engineered to duct design conditions
- ASTM-grade corrosion laminates
- Third-party inspection available
Materials & resins
We select the corrosion barrier and structural laminate for each service — vinyl ester, isophthalic and Dow Derakane™ systems — matched to the chemistry, temperature and abrasion of your process. Common choices and datasheets:
Derakane 411 — general corrosion · Derakane 470HT — high temperature · Derakane 510A — oxidizing / chlorine · Derakane 8084 — abrasion / elastomer-modified · AROPOL 7334T — isophthalic
Request a quote for FRP Dampers & Expansion Joints
Send your drawings or service conditions and our engineers will spec it with you.