Engineered for Reliability
Metal Fixed Valve Trays feature permanently open valve units that deliver sieve-tray simplicity with enhanced vapor-liquid contact. By eliminating moving parts, they prevent wear/sticking while achieving 20-30% higher capacity and 6:1 turndown ratios versus sieve trays – ideal for fouling services like FCC main fractionators and PVC slurry strippers.
Performance Advantages vs. Sieve Trays
| Parameter | Fixed Valve Tray | Sieve Tray |
|---|---|---|
| Turndown Ratio | 6:1 | 3:1 |
| Capacity Increase | 20-30% | Baseline |
| Entrainment Reduction | 40-60% (lateral vapor) | Baseline |
| Mechanical Wear | None (stationary) | N/A |
| Fouling Resistance | Excellent (large valves) | Moderate |
(Materials: CS/SS316L/Alloy 20/Duplex)
Key Operational Benefits
- Zero Moving Parts: Eliminates valve seizure in polymerizing/coking services
- Lateral Vapor Discharge: Reduces froth height 30% for lower entrainment
- Rigid Tray Deck: Withstands 50% higher hydraulic loads than movable valves
- Wide Operating Window: Stable efficiency at 20-120% design capacity
- Low-Maintenance Design: 10+ year service life in refinery environments
Industrial Applications
► Refining & Petrochemicals
- FCC main fractionators
- Delayed coker fractionation
- BTX extraction columns
- PVC slurry stripping towers
► Gas Processing
- NGL/LPG fractionation
- Amine contactor retrofits
- Glycol dehydration towers
► Specialty Systems
- Brewery beer columns
- Caustic wash stages
- Solvent recovery units
