VSP® Tower Packing
MACH Engineering’s VSP® arch ring is a type of tower packing formed from a single sheet of metal. Its unique spherical shape maximizes surface-area-to-void-space ratio while providing structural integrity and mechanical strength. The sizes of Arch Ring are proportional in all dimensions for accurate scale-up. The result is a unique packing material that delivers significant performance improvements over a standard pall ring design.
Use VSP® tower packing in a variety of industrial applications that require minimal pressure drop. For detailed specifications, contact MACH Engineering directly.
Product Overview
MACH Engineering VSP® rings have a spherical shape that is proportional and symmetrical in all dimensions, allowing for accurate scale-up without the risk of nesting. They feature heavy ribs for added strength, making them suitable for use in high bed heights. A series of longitudinal perforations create tabs that fold inward — a unique design element that promotes the formation of small, trickle-down droplets that improve liquid-gas mixing and distribution.
We manufacture our VSP® tower packing in 1″, 1 1/2″ and 2″ sizes, using the following materials:
- VSP Tower Packing304 and 316 stainless steel
- 304L and SS316L low-carbon stainless steel
- Carbon steel
- Aluminum
- Titanium
- Copper
For the best corrosion resistance, choose stainless steel, aluminum or titanium. For cost-effective strength in non-corrosive environments, choose carbon steel.
Not sure which metal is best for your application or budget? Contact MACH Engineering for advice from one of our experts.
| Nominal Size (in) | 1 (25 mm) | 1.6 (40 mm) | 2 (50 mm) |
| Void Fraction (%) | 98 | 98 | 98 |
| Geometric Surface Area (ft2/ft3) | 62.5 | 40.2 | 33.5 |
| Weight – SS304 (lb/ft3) | 11.2 | 10.6 | 11.86 |
| Pcs/ft3 | 1458 | 382 | 190 |
Benefits and Applications
MACH Engineering VSP® ring packing offers several benefits, including:
- A 15 to 30 percent improvement in flux compared to pall rings
- A 20 to 30 percent reduction in pressure drop compared to pall rings
- Even gas and liquid distribution
- Large void space
- High strength-to-weight ratio
- High mass and heat transfer rates
- High throughput capacity
- High flooding point
- Low wetting point
Clients typically use our VSP® arch ring packing in purification, washing or vacuum distillation towers — or any application involving materials that aggregate or decompose easily. Specific use cases include atmosphere-vacuum distillation, synthesis ammonia decarburization or desulfuration, and ethylbenzene, isooctane or methylbenzene separation.
Available From MACH Engineering
MACH Engineering is a dedicated expert in the field of industrial tower packing. We offer a wide range of packing products, from pall rings and Tri-Packs® to specialized products like our VSP® ring packing. We also provide engineering consulting services such as process simulation to help you determine the best packing for your needs.
Make us your source for VSP® ring packing in a variety of materials and sizes. Contact our head office by email or phone to learn how we can help.
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