Knight Materials
FLEXISADDLE® Ceramic Random Packing
FLEXISADDLE® ceramic random packing is manufactured from a chemical porcelain body meeting ASTM C515 standards, with water absorption, bulk density, apparent porosity and apparent specific gravity certified to ASTM C373.
| SIZE |
CRUSH STRENGTH |
PIECE COUNT |
PACKING DENSITY |
VOID SPACE |
ALUMINA (AL203) |
|---|---|---|---|---|---|
| 0.75 in |
153 lbs
69 kg |
4,900 pcs/ft3
172,970 pcs/m3 |
44 lbs/ft3
705 kg/m3 |
69% | 28% |
| 1 in |
211 lbs
95 kg |
2,100 pcs/ft³
74,100 pcs/m³ |
42 lbs/ft³
673 kg/m³ |
70% | 28% |
| 1.5 in |
200 lbs
90 kg |
575 pcs/ft³
20,300 pcs/m³ |
39 lbs/ft³
625 kg/m³ |
74% | 28% |
| 2 in |
200 lbs
90 kg |
320 pcs/ft³
11,700 pcs/m³ |
34 lbs/ft³
545 kg/m³ |
76% | 28% |
| 3 in |
1087 lbs 487 kg |
59 pcs/ft³
2,080 pcs/m³ |
33 lbs/ft³
529 kg/m³ |
77% | 28% |
Ceramic Saddle Size Selection Guidance
- Smaller sizes → higher surface area, higher efficiency, higher pressure drops
- Larger sizes → lower pressure drop, better suited for high flow applications
- Application-based recommendations: Knight’s technical team can assist with size selection based on your specific system requirements
Applications of Ceramic Saddles
Chemical Processing
- Distillation columns: ceramic/porcelain saddle packing provides the vapor-liquid contact surface for fractionation in corrosive and high-temperature distillation service
- Absorption towers: ceramic packing saddles facilitate selective transfer of soluble gas components from rising process gas into descending liquid solvent
- Stripping columns: ceramic saddle media supports transfer of dissolved volatile compounds from liquid process streams into upward-flowing gas or steam phases
- Quench columns: ceramic saddles facilitate the complete cooling of the gas as it approaches the adiabatic saturation. The ceramic saddles facilitate the condensing of dissolved acid gases into the quenching light phase. Ceramic saddles also help capture particulate matter.
Acid Plants & Corrosive Systems
- Sulfuric acid drying towers: ceramic saddle packing withstands direct contact with concentrated sulfuric acid and oleum streams where metallic or polymer alternatives are chemically incompatible
- Absorbers: SO₃ absorption towers and inter-pass absorbers in sulfuric acid manufacturing depend on ceramic packing saddles for their superior role in acid resistance, surface area, and mechanical durability
Petrochemical & Refining
- Separation processes: amine treating columns, gas processing towers, and separation units in petrochemical and refining operations use ceramic saddle packing where corrosive or high-temperature service conditions are present
Why Choose Knight Materials for Ceramic Saddles
- Inventory availability: comprehensive stock of ceramic saddle packing across all standard sizes for fast fulfillment on new construction and replacement projects
- Custom sizing options to meet non-standard column and tower design specifications
- Fast shipping and reliable sourcing to support project schedules and unplanned packing replacement requirements
- Technical expertise in packed column design, packing selection, and mass transfer bed sizing for chemical and corrosive process service
- Industry partnerships with leading chemical process equipment and tower internals suppliers
- Made in the USA
Ceramic Saddles for Mass Transfer Applications
Ceramic saddles are a proven industrial tower packing material used in absorption towers, quench towers, distillation columns, stripping systems, and corrosive chemical process applications across the globe. Their distinctive saddle profile generates high geometric surface area and supplies structural strength, promotes even gas-liquid distribution, and resists the corrosive and environmental stresses associated with a packed bed. Engineered for high chemical resistance, outstanding thermal stability, and optimized mass transfer efficiency, ceramic saddles deliver dependable, long-life performance in the most challenging packed tower applications.
Knight Materials Handling supplies ceramic saddle packing to chemical process engineers, acid plant operators, petrochemical facilities, and construction (EPC) contractors requiring reliable, high-performance tower packing from an original equipment manufacturer (OEM) trusted supplier.
What Are Ceramic Saddles?
Ceramic or porcelain saddles are saddle-shaped packing elements randomly loaded into towers and columns to promote contact between gas and liquid phases. In absorption towers, distillation columns, and stripping systems, packed beds of ceramic saddle media serve as the mass transfer core — creating the continuous, intimate gas-liquid contact required to drive component separation across every level of the packed bed.
The random packing arrangement of a ceramic saddle bed generates a high-surface-area, three-dimensional flow matrix throughout the column depth. Each saddle orients randomly, producing infinite gas/liquid flow paths through the bed that results in high mass transfer rates from top to bottom of the packed section.
The curved saddle profile prevents channeling — where liquid finds preferential paths within the bed and bypasses portions of the packing, degrading separation efficiency. By continuously redirecting both phases laterally, the saddle geometry improves distribution across the full cross-section of the column, maintaining consistent mass transfer performance across varying vapor and liquid loads.
Key Features & Benefits of Ceramic Saddles
High Chemical Resistance
- Resistant to acids and solvents
- Ideal for corrosive environments
Thermal Stability
- Maintains structural integrity
- Performs reliably across a wide range of operating temperatures and concentrations
High Surface Area & Efficiency
- Improves gas-liquid contact throughout the packed bed
- Enhances separation performance per unit of bed depth
Low Pressure Drop
- Better flow dynamics versus Raschig rings
Mechanical Strength & Longevity
- Low breakage during installation and operation
- Long service life reduces replacement frequency and operating costs
Ceramic saddles offer high resistance to temperature extremes and corrosive chemical attack while improving capacity and efficiency.