Glass Column Packing

Raschig Rings are a popular choice for packing glass columns in various industrial applications. At Aarohi Scientific, we manufacture Raschig rings in Neutral Glass and Borosilicate 3.3 Glass, ensuring high-quality performance. Our Raschig rings come in a range of sizes:

Raschig rings up to 25mm (made from Neutral Glass, Borosilicate 3.3 Glass)
40mm & 50mm Raschig Rings (available in Borosilicate 3.3 Glass)

These rings are ideal for use in glass distillation columns, reaction units, and other chemical processing equipment, providing excellent surface area for heat and mass transfer.

Benefits of Glass Column Packing

Low Bulk Density: Glass Raschig rings have a low bulk density, making them particularly effective for column packing in glass reactors and other similar setups.
High Durability: Our Raschig rings are made from high-quality Borosilicate 3.3 Glass, known for its excellent chemical resistance and high thermal stability.
Improved Efficiency: These packings provide optimal performance in gas-liquid separation, distillation, and other applications requiring efficient mass transfer.

Guidelines for Using Glass Column Packing

To ensure the best performance and avoid operational issues, follow these guidelines when using Raschig rings in your glass columns:

Column Diameter to Packing Size: The diameter of the column should be at least 8:1 larger than the diameter of the packing. This ensures optimal flow dynamics and packing efficiency.
Layering for Small Packing Sizes: For smaller packing sizes, it’s recommended to place a layer of larger packing at the bottom, preventing the smaller packing from falling through the packing support.
Preventing Damage in Vacuum and High-Vapour Velocity Applications: In vacuum or high-vapour velocity systems, packing may be displaced, potentially causing damage. To prevent this, install a PTFE perforated plate or packing retainer above the packed section to maintain stability.

Additional Column Packing Options

In addition to Raschig rings, we also offer Pall Rings and other packing solutions for glass columns, designed to enhance the efficiency and durability of your systems. These rings are ideal for applications that require enhanced gas-liquid contact, such as fractionation and distillation.

At Aarohi Scientific, we provide customized packing solutions tailored to your needs. Whether you require jacketed glass reactors, reaction units, or rotary evaporators, our glass packing solutions are designed to optimize your system’s performance and longevity.

Random Column Packing

Random Column Packing - Metal

Cylindrical Rings
Bulk density: 200-900 kg/m3
Surface area: 90-600 m2 /m3
NTSM: 1.5-1.8
High mechanical strength.
Thickness: 0.3mm – 1.0mm

P-Rings
Bulk density: 220-350 kg/m3
Surface area: 120-500 m2 /m3
NTSM: 1.8-2.2
Thickness: 0.3mm – 0.6mm

C-Rings
Bulk density: 150-250 kg/m3
Surface area: 110-220 m2 /m3
NTSM: 2.2-2.5
Thickness: 0.3mm – 0.8mm

Low pressure drop, Suits vacuum systems, Good liquid distribution, High throughput, Low liquid hold-up.

Saddle Rings
Bulk density: 120-330 kg/m3
Surface area: 60-280 m2 /m3
NTSM: 2.2-2.5
Thickness: 0.3mm – 0.8mm

Very low pressure drop, Suits high vacuum application, Very low liquid hold-up.

HP Rings
Bulk density: 190-280 kg/m3
Surface area: 90-270 m2 /m3
NTSM: 1.8-2.2
Thickness: 0.3mm – 0.6mm

High capacity, lower pressure drop, high mechanical strength than P-Rings.

N Rings
Bulk density: 130-180 kg/m3
NTSM: 1.2-2.5

Very low pressure drop, Suits high vacuum application, Very low liquid hold-up.

Random Column Packing - Ceramics

Saddle Rings
Bulk density: 590-720 kg/m3
Surface area: 100-522 m2 / m3
NTSM: 1.8-2.6

P-Rings
Bulk density: 500-650 kg/m3
Surface area: 55-220 m2 / m3
NTSM: 1.4-1.8

Cylindrical Rings
Bulk density: 500-840 kg/m3
Surface area: 44-350 m m2 / m3
NTSM: 1.4-1.7

Random Packing - Plastics

P-Rings
MOC: PP, PVDF
Bulk density: 55-110 kg/m3
Surface area: 100-350 m2 / m3
NTSM: 1.8-2.5

Saddle Rings
Bulk density: 45-75 kg/m3
Surface area: 85-230 m2 / m3
NTSM: 2.0-2.5

Structured Column Packing

Structured Packing from Sheet Metal
MOC: Stainless steels, 904L, 254SMO, Duplex, SS410S, Titanium, Hastelloy, etc.
Sizes: 50 mm to 8.0 m diameter.
Application: Standard application, Moderate vacuum to high pressure, Low to high liquid loading.
F-factor: 1.2 to 3.5
Surface area: 60 to 750 m2 /m3
NTSM: 1.0 to 4.5

Structured Packing from Wire mesh
MOC: Stainless steels, Carbon steel, Phosphor bronze, or any metal/alloy according to customer request.
Sizes: 25 mm to 3.0 m diameter.
Application: High vacuum to low pressure. Good for where low pressure drop required. High no. of stages per meter. Highly efficient even at low liquid loading.
F-factor: 1.5 to 2.2
Surface area: 500 to 750 m2 /m3
NTSM: 6 to 9

High Capacity Structured Packing from Sheet Metal
MOC: Stainless steels, 904L, 254SMO, Monel, Hastelloy, or any metal/alloy according to customer request.
Sizes: Up to 8.0 m diameter.
Application: High liquid loading, High vapour loading, Useful for heat-sensitive systems. Very low pressure drop.
F-factor: 2.2 to 3.0
Specific surface area: 250-750 m2 /m3
NTSM: 2.2 to 5.0

Reactive Distillation Packing
MOC: According to customer request.
Application: High separation efficiency. Reaction capacity/rate can be high. Flexible design of catalyst element. Can be used in laboratory columns.
Diameter: 50 – 500 mm
Surface area: 150 to 450 m2 /m3
NTSM: 1.0 to 3.0

Structured Grid Packing
MOC: Stainless steels, SS410S, Duplex, Monel, Hastelloy, Carbon steel, or according to customer request.
Application: Fouling systems, corrosive environment, where frequent cleaning or replacement needed.
Sheet Thickness: 1.0 – 2.0 mm

Grid Packing
MOC: Stainless steels, SS410S, Duplex, Monel, Hastelloy, Carbon steel, or according to customer request.

Laboratory Packing (Wire mesh)
Standard MOC: SS, others on request. Suitable for heat-sensitive systems.
NTSM: 20 – 40 Pressure drop low, 0.1 to 0.4 mbar/stage. Suits low liquid load 0.05 m3 /m2 h. Can be used for high vacuum to 2 mbar. Can be scaled up easily.
Diameter: 25 – 100 mm

Knitted Structured Packing
MOC: Stainless Steel, others on request.
Application: Separations where high no of theoretical stages are required due to its high efficiency. Heat sensitive materials such as fine chemicals, flavors & fragrance, pharmaceutical intermediates due to lower pressure drop by this packing.

Packing for Liquid-Liquid Extraction
This is a specially designed packing combination made from sheet metal for liquid-liquid extraction.
MOC: Stainless steels, Carbon steel, or any metal/alloy according to customer request. Available up to 3 m diameter.

PTFE Structured Packing
This is specially designed packing material for use in absorption, distillation columns and chemical reactions. This is completely chemically inert, strong and light weight material.

Sizes: 100 mm to 300mm
Application: Corrosive systems
Temperature: Up to 150° C