Scrubber tower packing is an essential part of the system by providing an area for liquid and gas contact. Without proper or sufficient liquid gas contact a scrubber will not produce the designed results and could result it costly repairs and redesigns. Special consideration should be given to the selection of scrubber tower packing. Things to consider when evaluating and selecting scrubber tower packing include. Size, configuration, surface area, weight, void space and material of construction.

Scrubber Tower packing is manufactured in a variety of materials including thermoplastics, metals and ceramics. To determine the most suitable material of construction for your random packing the operating temperature and the composition of the gas and liquid must be considered. Applications that involve higher temperatures or highly corrosive elements may require high performance or exotic materials. For example, KemFlo manufactures plastic random packing in a variety of thermoplastic resins such as general purpose polypropylene, NSF polypropylene, polypropylene with glass, Polyvinylchloride, CPVC, PVDF, Tefzel and more in order to accommodate a wide variety of application. Make sure that the raw material used to manufacture the plastic random packing that you are utilizing is traceable back to the resin batch from which it was made. All of KemFlo’s plastic tower packing is traceable back to the resin manufacturer’s batch. In general metal packing may be made from a variety of materials including stainless steel, Inconel, Hastelloy and more.

The configuration or design of a specific tower packing varies greatly. Scrubber tower packing is designed to maximize efficiency and to be strong enough to withstand an acceptable amount of exposure to pressure, temperature, weight and flow. The purpose of scrubber packing is to provide surface area for liquid and gas contact but also provide enough open area as to not restrict flow. There are basic styles of scrubber tower packing to choose from and there are high performance tower packings. KemFlo manufactures several basic or traditional styles of plastic random packing including the Pall Ring and Saddle style. The Pall Ring is a barrel shaped or ring shaped packing that features an open wall construction which helps to maintain even liquid distribution. Kemflo manufactures the Pall Ring in three different sizes including 1”, 2” and 3.5”. Saddle style plastic random packing has serrated edges which promote high mass transfer rates. KemFlo manufactures the Saddle in 1”, 2” and 3” sizes. For those looking for more out of their scrubber tower packing KemFlo offers the Tri-Pack which is a high-performance plastic random packing. The Tri-Pack is a hollow spherical scrubber packing which is uniquely designed. The Tri-Pack offers a superior geometric shape which promotes high mass transfer rates. The spherical shape of the Tri-Pack also allows each part to roll into the packed position without creating any void spaces within the packed bed. The Tri-Pack offers an excellent surface area to void space ratio and is the most efficient plastic random packing on the market today. The Tri-Pack is available in 1”, 2” and 3.5” sizes.

Kemflo has been manufacturing plastic random packing since the 1980s and had developed a worldwide reputation for quality and efficiency.  Kemflo’s vast experience in injection molding a wide range of thermoplastics sets it apart from other plastic random packing manufacturers. Kemflo produces multiple styles of plastic tower packing including the Tripack, Pall Ring and Plastic Saddle style random packing. Each plastic random packing style is available in three different sizes and a variety of resins.  Some of the resins that Kemflo manufactures their plastic tower packing in include polypropylene, polyethylene, polypropylene with glass fill, polyvinylchloride, CPVC, Kynar, Tefzel, Teflon and Halar. Other resins are available upon request. Working with a vast array of thermoplastic resins, including high performance resins, requires skill, experience and a very high level of quality assurance.  Everything from the design of the mold and tooling to the final product requires strict oversite and quality assurance in order to produce Kempac plastic random packing. Kemflo’s random packing molds are subject to a strict maintenance schedule which ensures a quality product and greatly reduces the chances of a product flaw. 

One of the most common flaws associated with plastic random packing is flashing.  Flashing is excess resin attached to a finished part.  Flashing can be caused by a variety of things including mold damage, improperly supported mold, uneven flow in the cavity of the tool, clamp pressure too low or high, overfilling the mold cavity or resin viscosity too low.  Flashing is a problem for plastic tower packing because it may add excessive surface area to the random packing bed which is designed based on very specific physical properties of the random packing.  Excessive flashing also may create uneven liquid and gas flow and contact in a column resulting in an inefficient or under performing system.

An imperfection on a few individual plastic random packing parts my not seem like a serious thing but high performance random packing such as the Tri-Pack is typically utilized in critical applications that are designed around tight specifications.  KemFlo has an inhouse maintenance crew who is dedicated to ensuring that all molds and tools are in excellent working condition.  Another critical element in ensuring that Kemflo produces the highest quality plastic random packing on the market today is our resin selection.  Utilizing high end resins is critical in producing quality packing and ensuring optimal product life.  KemFlo utilizes only high end resins that are all traceable back to their production batch to make their plastic tower packing.  Many manufactures of plastic random tower packing do not offer products that are traceable all the way back to the raw material or resin.  Kemflo’s quality control program continues to utilize state of the art technology to ensure our customers always receive high quality plastic random packing.  Kemflo manufactures the Tri-Pack in 1”, 2” and 3.5” sizes, the Pall Ring in 1”, 2” and 3.5” and the Saddle Packing Style in 1”, 2” and 3”.

Kemflo is well known for their plastic random packing product line which includes three styles including the Tripacks, Pall Ring and saddle plastic random packing.  Now Kemflo offers a variety of column internals to compliment their plastic tower packing products through a third-party partner in the United States. Kemflo is continuously seeking ways to support our customers and provide high quality products that not only meet but exceed our customer’s expectations.  

Kemflo manufactures three different styles of plastic random media including the Tripacks, Pall Ring and Saddles plastic random packing style.  The Tri-packs is a hollow spherical column packing that is designed with a network of ribs, struts and drop rods.  Unlike irregular shaped plastic random media the Tri-Packs is specifically designed to roll into the packed bed without creating any void areas within the packed bed unlike other plastic random media styles.  The unique design of Tri-Packs offers predictable and reliable performance.  The geometric shape of Tri-Packs provides an excellent active surface area which is critical to mass transfer.  The Tri-Packs plastic random packing is available in 1”, 2” and 3” Sizes.  Kemflo manufactures the Tri-Packs in a variety of resins.  The Pall Ring is another popular plastic random media and offer many advantages over other products.  The Pall Ring has an open wall construction which maintains even liquid distribution.  The Pall Ring plastic random media is available in 1”, 2” and 3.5” sizes and can be made in a variety of resins.  KemFlo also manufactured a Saddle Style plastic random media which consist of serrated edges that promote high mass transfer rates through effective liquid surface renewal.  The Saddle style plastic random packing is available in 1” 2” and 3”. The Saddles style plastic tower packing comes in a variety of resins. 

Other Column internals offered by Kemflo include Mist Eliminators which are available is a variety of styles including wire-mesh and chevron.  The Mist Eliminator is used to remove liquid droplets from a gas stream which contain contaminates or particulate matter.  Mist Eliminators are available in a variety of materials and are custom built to meet the customer’s specific application.  We also offer Liquid Distributors in a variety of materials.  A Liquid Distributor ensures that the liquid is evenly distributed above the plastic random packing bed and is critical to efficiency of the overall system. Another critical component in a column is the Bed Limiter which is located directly above the plastic packing media bed.  The purpose of the Bed Limited is to keep the plastic random packing in place and prevent the upward gas flow from blowing the plastic random packing into the upper areas of the column.  Lastly, Kemflo offers a Packing Support in which the plastic packing media is supported on.  Similar to the Bed Limiter, the Packing Support is a grate with openings small enough as to the plastic random packing from falling through and supports the entire packing bed.

​While Kemflo may be best known for their Kempac plastic random packing product line, we are also known for our tank accessory product line also referred to as AIK. In addition to our plastic random packing product line which includes the Tripack, Pall Ring and Plastic Saddle style, we manufacture a variety of tank accessory products under the AIK product name. The AIK product line includes the following products: 

Man-Way Covers: Our new and improved Man-Way Covers and Rims are constructed from High Density Polyethylene which provide excellent impact properties especially in cold weather. The newly designed center air breather provides optimum venting performance and extremely easy to install and remove air breather which is designed with a tether connection that fastens into the rim helping to reduce misplacement. The Man-Way Lids are offered in closed and vented versions depending on the customer’s specifications. We also offer a variety of lid vents.  Private labeling is available on request as well as custom colors and application specific resins to meet our customer’s needs. Man-Way Lids are available in 8” to 22” sizes. 

Screw Caps: Our Screw Caps are constructed of Black High Density Polyethylene and are available in 6”, 7” and 12” sizes. When used with a gasket these screw caps are designed for use in liquid-tight applications. The 6” and 7” caps are also available with a 2” NPT insert as a standard. Although not offered as a standard, private labeling, various color options, specialty resins and different inserts are available upon request. Ask our sales representatives about the options available. 

Vent-O-Caps: KemFlo manufactures the Vent-O-Cap which combines the functions of a screw cap, a pressure relief vent and a vacuum relief vent. Constructed of Black High Density Polyethylene and is available in 6”, 7” and 12” sizes. This product is available with EPDM or Viton vent seals and Hastelloy-C or 316 stainless steel springs. When used with a gasket the Vent-O-Cap is designed for use in liquid tight applications. 

Maximus Caps: The Maximus is a well-engineered vent which provides a cost-effective venting solution for your tank and intermediate bulk container. This product Is molded from a engineered Co-Polypropylene resin which gives the vent excellent chemical and impact resistance. The vent is available with EPDM in Viton gasket materials. The springs are available in 316 stainless steel or Hastelloy-C. The Maximus is available in various configurations to offer different pressure and vacuum relief options for custom venting requirements. They are color coded for easy identification of the gasket and springs used. 

Bulkhead Fittings: Our new and improved Bulkhead Fitting line provides our customers with a sense of security of installing a robust fitting which will stand up to almost any extreme application. The design features of these fittings include the following.  Extended body height to compensate for thick tank wall applications. Heavy duty cross-sectional wall thickness to with stand high torque tightening avoiding thread stripping and damage. Double tapped NPT threads with left hand self tightening nut. Made from high quality resins.  Specialty resins may be available upon request. Standard gasket materials are EPDM and Viton.  

The Kemflo product line continues to expand providing customers with numerous quality product options. Like Kemflo’s plastic random packing product line, their AIK tank accessory product line continues to expand.  While Kemflo’s current plastic random packing product line includes the Tripack, Pall Ring and Plastic Saddles styles of packing, we are looking to expand all product offerings as well. 

Kemflo has been a leader in the injection molding industry since 1988, manufacturing a broad range of products for numerous industries including industrial, energy, chemical, medical, construction, agricultural and environmental. Kemflo’s manufacturing capabilities are demonstrated by the diversity of the products that they manufacture which include but are not limited to pipe fittings, plastic scrubber packing, chevron mist eliminators, electrical components, pool / spa fittings, tank manway covers, specialty tank accessories, medical equipment connections and many more products. Kemflo separates itself from other plastic injection molding companies by offering their customer a host of inhouse services including product design, prototyping, mold making , post mold capabilities, assembly capabilities and a complete quality assurance program. Whether a customer needs assistance in manufacturing an existing product or a customer product Kemflo can has the experience and capabilities to get the job gone.

While Kemflo takes immense pride in all of the products that we manufacture, we are especially proud of our Kempac plastic random packing product line which we have significantly grown. The Kempac plastic random packing product lines includes three different styles of plastic tower packing including the Tri-Pack, Saddle and Plastic Pall Ring Packing. Within the plastic tower packing product group the Tri-Pack stands out. The Tripack is a high performance plastic tower packing and is one of the most efficient plastic tower packing products on the market today. Tripacks is a round tower packing made up of a distinctive network of ribs, struts and drip rods. Tripacks are different from other plastic random column packing due to its round shape. The round shape allows for each part to roll into the packed bed position without forming gaps or open areas which are common to irregular shaped packing or those with multiple pins and appendages. Tripacks eliminate the need to calculate quantities based on settling and nesting is basically impossible due to its round shape. The Tri-Pack offers dependable and predictable load performance of your tower which means reliable and consistent performance. In addition to the Tripacks superior geometric shape, a significant service area is extremely important to mass transfer. The network of ribs, structs and drip rods give the Tri-Pack a significant advantage in providing superior wetting qualities and providing consistent liquid distribution through out the packed bed. The Tri-Pack provides the ideal combination of surface area to open space which results in maximum mass transfer efficiency thus reducing operating cost. Too much surface area can prohibit proper gas and liquid contact and result in higher pressure drop.

Kemflo manufactures the Tripack in three different sizes 1”, 2” and 3.5”. In addition to the Tripack we also manufacture a Plastic Pall Ring and Saddle style plastic random packing. Another important aspect that separates Kemflo from other manufactures of plastic column packing is our ability to manufacture utilizing numerous resins including exotic and high-performance resins. KemFlo’s Tripack, Plastic Pall Ring and Saddles style plastic column packing is available in Polypropylene, Polypropylene with glass, Polyethylene, PVC, CPVC, Kynar, Tefzel, Teflon and Halar. Other resins are available upon request. Please feel free to contact us for more information regarding available resins.

For more information on Tripacks, Plastic Pall Rings, Saddle Style tower packing or any other products manufactured by Kemflo please visit our website at www.kempac-packing.com. We look forward to working with you.