Bed Stabilization Technology
Hold down grids (bed limiters) prevent packing fluidization and intermixing during gas surges (>3 m/s vapor velocity) or pressure transients. Engineered with ≥85% open area and 10,000 kg/m² load capacity, these grids maintain bed integrity while permitting unrestricted vapor/liquid flow in vacuum distillation, acid towers, and high-turndown scrubbers.
Core Technical Specifications
| Parameter | Performance Metric |
|---|---|
| Uplift Prevention | Stable at F-factors ≤3.5 Pa⁰·⁵ |
| Open Area | 85-92% |
| Load Capacity | 10,000 kg/m² |
| Material Options | CS/SS316L/Alloy 20/Hastelloy® |
| Packing Compatibility | All random/structured types |
(Modular designs for columns 0.3-12m diameter)
Critical Applications
► High-Turndown Systems
- Vacuum crude distillation columns
- Flue gas desulfurization (FGD) scrubbers
- Pressure-swing adsorption (PSA) units
► Aggressive Media Services
- Olefin plant quench towers
- 98% sulfuric acid concentrators
- Chlorine drying columns
► Surge-Prone Operations
- Compressor knockout drum internals
- Cyclone separator packing retention
- FCC reactor grid stabilization
