MACH plastic Tri-Packs® tower packing provides reliable performance in a variety of industrial mass transfer and separation processes. Use them for distillation, scrubbing, degasifying, stripping and more. MACH can supply products in different sizes for nearly any application.

Compared to older types of tower packing, Tri-Packs — which were first developed in the late ’70s and came to find broad acceptance throughout the next decade — have multiple advantages. Their unique spherical shape prevents nesting and settling, while a network of interior ribs maximizes surface area and helps ensure uniform liquid distribution. This, in turn, improves wetting qualities without impeding gas and liquid contact.

Large Tri-Packs

Other benefits to Jaeger Tri-Packs® include their lower pressure drop and high mass transfer rates. Manufactured from injection-molded plastic, they are corrosion- and temperature-resistant. Select materials meet NSF® standards for potable water use. For more information, get in touch with MACH Engineering directly.

Product Options

MACH Engineering offers Jaeger Tri-Packs tower packing in a wide range of plastic materials — each of which offers different properties suitable to different applications. Current options include:

Material Options

Max. Operating Temperature 180 160 140 230 280 400
Bulk Density Factor 1.00 1.02 1.50 1.74 1.98 2.45

Product Data

Nominal Size (in) 1 2 31/2
Void Fraction (%) 90 93.5 95
Geometric Surface Area (ft2/ft3) 85 48 38
Weight – (lb/ft3) 6.2 4.2 3.3
Packing Factor (1/ft) 28 16 12

Other materials are available upon request. All of the above figures are approximate — performance may be affected in applications that involve solvents, free radicals and other harsh substances. If you’re unsure which option is best for your needs, please get in touch with our team. One of our engineers would be happy to provide guidance.

Tri-Packs Applications and Performance Examples

As an experienced Tri-Packs partner, MACH Engineering has supplied Tri-Packs to serve in the following applications:

  • 3.5’’ Tri-Packs for a CO2 Scrubber in Garden City, KS
  • 2” Tri-Packs for a Chlorine Stripper Tower in Maple, ON
  • 1” Tri-Packs in PVDF for a NOx Scrubber in Henderson, Nevada
  • 2” Tri-Packs for a Coffee Scrubber in El Cajon, CA
  • 2” Tri-Packs for an Ethanol Plant in Mt. Vernon, IN
  • 2’’ Tri-Packs for a Hydrogen Peroxide Scrubber in a pharmaceutical industry

Whether you’re trying to optimize performance in an existing tower or designing a new system from the ground up, you’ll save money and get the benefit of working with a dedicated partner by choosing MACH.

Group of 3 Tri-Packs Sizes


Its spherical shape offers good surface area to void space ratio, resulting in a high active surface area.

  • It confers extremely low pressure drops and maximizes the operating capacity.
  • There is virtually no nesting or settling which makes the removal and the installation of this packing easy.
  • The round Tri-Pack generates predictable performance data which helps to design the column.
  • The circular and consistent design of each packing helps achieve high mass transfer and heat transfer rates.

MACH Tri-Packs Tower Packing

MACH Engineering has more than 25 years of experience in the mass transfer industry. From our headquarters in Houston, TX, we provide dedicated design and engineering services for clients around the world.

Working with molding facilities in the U.S. and overseas, we can turn around custom orders to a high standard of quality. We also keep an extensive selection of ball tower packing products in stock and ready to ship. To learn more or request a quote, contact us today, and check out our Tri-Packs video on YouTube!


Tri-Packs® is a registered trademark of Raschig USA Inc.

MACH Engineering

MACH Engineering