The Tri-Pack is a high-performance plastic random packing specifically designed to maximize efficiency. The geometric shape and unique network of ribs, struts and drip rods of the Tri-Pack provides the optimum surface area to open area ratio. The Tri-Pack is available is three sizes and a variety of resins.

Tripacks is a hollow spherical column packing constructed of a unique network of ribs, struts, and drop rods. Plastic Tripacks are distinguished from other packing by its superior geometric shape.

Their spherical shape allows each element to roll into the “packed position” without forming void areas common to irregular shaped packing or those with excessive pins and appurtenances. With Tripacks, there is no need for allowances for settling and nesting is virtually impossible.
The round Tripacks offers reliable and predictable loading of your tower which means reliable and predictable performance. In addition to the superior geometric shape, an active surface area is vital to mass transfer. The unique network of ribs, struts and drip rods have proven to give the Tripacks a distinct advantage in providing excellent wetting qualities and maintaining liquid distribution through the packed bed. Some suppliers claim more surface area, but surface area alone is not an indication of performance. Excessive surface area can impede proper gas and liquid contact and always results in higher pressure drop which increases horsepower requirements and operating costs. The Tripacks offers an optimum surface area to open area ratio which yields excellent mass transfer efficiency and reduced operating costs.
Tripacks are available in three sizes, 1”, 2”, and 3.5”. Kempac products uses only prime, virgin resins and no recycled materi- als are ever used. Almost any injection moldable resin is available; the most common include PP, PE, PP-G, CPVC, Noryl, Kynar®, Halar®, Teflon® and many more. Tripacks made of Polypropylene (PP) have been certified by NSF to Standard 61 for water treatment plant applications.

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Applications of Plastic Random Packing

Air Scrubbing

The process of removing unwanted pollutants from a gas stream. The scrubber uses liquid to wash unwanted pollutants from a gas stream.

Air Stripping

Air Stripping transfers volatile components of a liquid into an air stream. Air Strippers are usually packed towers operated with a countercurrent flow.


Distillation separates a mixture into two or more products by boiling to remove the more volatile components out of the mixture.


Biofiltration is a pollution control technique using living material to capture and biologically degrade process pollutants.


Degasification is the removal of dissolved gases from liquids, especially water and aqueous solutions. A packed column may be utilized.

For over 25 years KemFlo has been a leading manufacturer of plastic random packing.

KemFlo’s Kempac plastic random packing has earned a reputation as one of the highest quality products in the market today. Our state of the art facility and equipment, along with KemFlo’s stringent quality control program, ensures that our customers receive the best plastic random packing available. KemFlo’s Kempac product line includes a variety of high performance plastic random packing configurations and sizes, manufactured in numerous resins to meet the most demanding applications.