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Eight-four arc alternation boosts throughput by 15‑30% over standard packings, handling higher loads without flooding.
Large open-wall area and smooth flow paths reduce resistance, cutting energy and operating costs.
Continuous unbroken surface prevents solids build‑up, ensuring stable long-term operation with less downtime.
304 / 316 stainless steel withstands aggressive media, high temperatures, and erosion for extended service life.
Multi-arc ribs create fine droplets and a large effective interfacial area for faster mass transfer.
Consistent dimensions and mechanical strength under strict quality control, guaranteeing reliable batch-to-batch performance.
| Size (mm) | D×H×T (mm) | Surface Area (m²/m³) | Void Ratio (%) | Number per m³ | Bulk Density (kg/m³) | Packing Factor (m⁻¹) |
|---|---|---|---|---|---|---|
| φ25 | 25×25×0.6 | 250 | 93 | 59200 | 420 | 310 |
| φ38 | 38×38×0.6 | 138 | 94.7 | 14000 | 350 | 163 |
| φ50 | 50×50×0.8 | 121 | 95 | 7000 | 300 | 144 |
| φ76 | 76×76×1.0 | 75 | 95 | 1950 | 280 | 86 |
The Metal VSP Ring (Very Special Packing), commonly known as the 84 Inner Arc Ring or Mellaring, is an advanced random tower packing featuring an alternating multi-arc open structure. It provides superior interfacial gas-liquid contact and optimized hydraulic performance in column operations.
Thanks to its unique arc geometry and continuous inner surfaces, the Metal VSP Ring boosts throughput by 15% to 30%, reduces system pressure drop significantly, and offers superior resistance to liquid holdup and clogging compared to standard Pall rings.
Metal VSP Rings are predominantly manufactured from 304 and 316 grade stainless steel, as well as carbon steel and special corrosion-resistant alloys, ensuring reliable mechanical integrity in aggressive, corrosive, and high-temperature environments.
They are widely deployed in chemical, petrochemical, and environmental systems, including absorption towers, desulfurization units, stripping columns, sour gas scrubbing, and thermal separation processes.
Standard configurations include φ25mm, φ38mm, φ50mm, and φ76mm, offering high void ratios ranging from 93% to 95% to meet versatile hydraulic capacity and separation requirements.
The smooth, unbroken internal curved surface facilitates continuous washing by the liquid phase, preventing solids deposition and foulant accumulation for extended operational cycles and minimal maintenance shutdowns.
