Kemflo, established in 1988, has developed a solid reputation for the design and manufacturing of high quality injection molded products. KemFlo has extensive experience in the injection molding of a wide range of thermoplastic resins both in commodity and specialty type resins. Our wide range of services in part, design, prototyping, mold design and post mold services allows us to provide our customers with a single complete source for their injection molding needs. Today Kemflo provides products and services into many different markets and has accumulated a wealth of experience in materials, design and processes. One of KemFlo’s most successful product lines is the Kempac plastic random packing line.  The Kempac plastic random packing line includes several different styles of high performance packing including the Tri-Pack style, plastic saddle packing and the plastic Pall Ring.  

The Kempac plastic Pall Ring is a Robust ring featuring an open wall construction which efficiently maintains liquid distribution. The Pall Ring has reinforced struts which provide additional surface area for gas and liquid contact and support the outer ring. The Kempac Pall Ring is available in 1”, 2” and 3.5” sizes. The Kempac Pall Ring is available in a variety of thermoplastic resins including Polypropylene, Polypropylene with Glass, High Density Polyethylene, Low Density Polyethylene, PVC, CPVC and PVDF.  Other resins may be available as well. Please feel free to contact Kemflo for more information regarding available resins.

The Pall Ring is utilized in a variety of applications including:

  • Air Scrubbing: This is a process used to clean industrial exhaust streams and gas emissions. An example would be the removal of Sulphur from a power plant exhaust system.
  • Air Stripping: Air Stripping is transfer of volatile compounds of a liquid into an air stream which is then treated. This process may be used to treat contaminated groundwater.
  • Distillation: Distillation is the process of separating the components or substances from a liquid by using selective boiling and condensation.
  • Deaeration: The removal of air molecules from another gas or liquid, such as the removal of oxygen from liquids.

Other applications include Absorption, extraction, humidification, dehumidification, biofiltration and more.

The Kempac plastic pall ring is typically shipped in either five for ten cubic foot cardboard boxes. The boxes may either ship loose or on wood pallets.  Super sacks or poly bags are also available upon request. Storage and handling of the packing filled cardboard boxes is important in order to keep the packing clean and to prevent the boxes from breaking thus the potential of loosing packing. Please note that the cardboard boxes are not designed for outside storage. Boxes should be stored indoors on level flooring and free from water damage or condensation.  

Proper installation of the plastic pall ring as with any random packing is important.  There are many different ways to install plastic pall rings depending on the tower size, packed bed height and the position of other internals.  Typically the pall ring can installed by simply dry dumping with reasonable care. Make sure that the packing fills all of the space in the packed bed area.

For more information on Kempac’s plastic pall ring of other plastic random products such at the Tri-Pack or plastic saddle packing please visit our website at