Patented LANPAC® Tower Packing

Reduce tower heights by 30%

LANPAC® delivers a combination that shouldn't be possible: lower pressure drop than packings half its size, with higher mass transfer efficiency. That combination reduces packed bed depth, tower height, and blower energy in air strippers, scrubbers, degasifiers, and absorption systems — without sacrificing performance.

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Patented LANPAC® Tower Packing

Patented Geometry, Measurable Results

LANPAC's patented single-piece design creates a geometry that outperforms the theoretical expectation for its size class: lower pressure drop than smaller packings, higher mass transfer efficiency than larger ones. The result is shorter packed beds that achieve the same or better removal in less tower volume — directly reducing capital cost on new towers and increasing throughput capacity on retrofits.

Fouling Resistance in Difficult Streams

LANPAC's superior wetting capability eliminates the dry spots where scale nucleates and biological deposits accumulate. The surface stays wetted under variable liquid loading conditions, promoting self-cleaning rather than buildup. This makes LANPAC a reliable choice for streams with mineral content, biological loading, or variable flow — applications where conventional packings require frequent cleaning or early replacement.

Materials and Sizing

LANPAC is available in 3.5" and 2.3" sizes across a range of thermoplastics: polypropylene, polyethylene, PVDF, ISOPLAST, and Teflon. The 3.5" size carries NSF certification for direct contact with potable water. Multiple materials and diameters allow LANPAC to be specified for towers from two feet in diameter to large-scale industrial installations, including aggressive chemical service.

NSF Certified
NSF Certified

Key Benefits

  • Shorter packed beds — Lower pressure drop and higher mass transfer efficiency combine to reduce required bed depth, shortening towers and cutting capital cost
  • Lower blower energy — Reduced pressure drop across the packed section means smaller motors and lower operating cost over the system's life
  • Fouling and plugging resistance — Superior wetting eliminates dry spots, preventing scale and biological deposit buildup in variable or contaminated streams
  • NSF certified for potable water — 3.5" LANPAC meets NSF requirements for direct contact with drinking water
  • Wide material and size selection — PP, PE, PVDF, ISOPLAST, and Teflon; two sizes for towers from 2 feet diameter to large-scale industrial

Performance Data & Literature

Case Studies

Technical Specifications

LANPAC® Physical Properties — British Units

Property 2.3" LANPAC® 3.5" LANPAC®
Nominal Size 2.3 in 3.5 in
Void Fraction 89% 92.5%
Geometric Surface Area 68 ft²/ft³ 44 ft²/ft³
Weight (polypropylene) 5.6 lb/ft³ 4.2 lb/ft³
Piece Count 200/ft³ 50/ft³
Packing Factor 21/ft 14/ft
NSF Certified — Yes

LANPAC® Physical Properties — Metric Units

Property 2.3" LANPAC® 3.5" LANPAC®
Nominal Size 58 mm 89 mm
Void Fraction 89% 92.5%
Geometric Surface Area 223 m²/m³ 144 m²/m³
Weight (polypropylene) 90 kg/m³ 67 kg/m³
Piece Count 7,060/m³ 1,770/m³
Packing Factor 69/m 46/m
NSF Certified — Yes