Glass Lining vs. PTFE Lining in Chemical Process Equipment

Material Overview

Performance Comparison

Cost Comparison

Application Suitability

Summary: Pros & Cons

Conclusion

Glass-lined equipment is ideal for processes involving strong acids and steady-state thermal/pressure conditions, especially where abrasion resistance is important and hydrofluoric acid or alkalis are not present. However, its fragility, repair difficulty, and higher cost limit its flexibility.

PTFE-lined equipment, on the other hand, provides broader chemical resistance, better thermal shock tolerance, and lower cost, making it ideal for multi-chemical processes, organic solvents, and alkalis. However, it must be used within its mechanical and pressure limits, and permeation monitoring is critical in long-term applications.

Final Selection Criteria should include:

• 1. Chemical nature of the process fluids

• 2. Operating pressure and temperature

• 3. Mechanical stress and abrasion

• 4. Maintenance accessibility

• 5. Budget constraints