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Plastic raschig rings (PE, PP, PVC, CPVC, PVDF)
Plastic raschig rings are small cylindrical pieces of tube, with diameter and height roughly equal. They were invented by German chemist Friedrich Raschig. As the first-generation tower packing, plastic raschig rings feature a simple hollow cylindrical design. This design allows high efficiency in gas-liquid separation processes.
Thanks to their simple structure and low weight, plastic raschig rings are easy to manufacture and operate. They are known for large liquid flux, low pressure drop, and high corrosion resistance. These advantages make them ideal for use in distillation, absorption, stripping, and degassing columns.
Plastic raschig rings offer a cost-effective solution for chemical engineering processes. Whether in the petroleum industry or the alkali-chloride sector, these rings ensure high separation performance and operational stability.
Main Features
- Available in PE, PP, RPP, PVC, CPVC, and PVDF materials
- Large fluid flux with low pressure drop
- Strong chemical and corrosion resistance
- Economical and easy to install
- High mass transfer efficiency
Specifications of Plastic Raschig Rings
| Size(mm) | Number per m³ | Bulk Density(kg/m³) | Free Volume (%) | Surface Area (m²/m³) |
|---|---|---|---|---|
| Φ15*15*0.3 | 240,000 | 385 | 94 | 360 |
| Φ25*25*0.3 | 51,000 | 231 | 96 | 215 |
| Φ38*38*0.4 | 14,500 | 207 | 96 | 135 |
| Φ50*50*0.5 | 6,300 | 200 | 96 | 105 |
| Φ80*80*0.8 | 1,600 | 200 | 96 | 80 |
Applications of Plastic Raschig Rings
Plastic raschig rings are widely applied in industrial separation devices. They can be used in ethylene extraction towers, carbon dioxide absorbers, flash towers, liquid-liquid extractors, and petrochemical processing equipment. In addition, plastic raschig rings are suitable for hydrogen sulfide stripping, ammonia extractors, and even medical processing equipment.
This type of packing material is also compatible with devices handling corrosive media, where traditional metal or ceramic raschig packing may not be suitable.
Advantages Over Other Packing Media
Compared with ceramic or metal types, plastic raschig rings are lighter and easier to install. Their high resistance to acids, alkalis, and solvents makes them reliable even in extreme conditions. These advantages set them apart from other options like raschig balls or traditional raschig packing.
In low-pressure applications and packed bed towers, plastic raschig rings ensure improved performance and durability.
Packing and Delivery
Plastic raschig rings are packed in woven bags or bulk containers, depending on customer needs. All packing ensures safety in transport and easy loading. Quick delivery can be arranged to reduce downtime in your systems.
Conclusion
Plastic raschig rings are a cost-efficient, high-performance solution for industrial separation processes. Their versatility, strong chemical resistance, and ease of use make them a preferred choice across industries. If you are looking for reliable raschig packing, plastic raschig rings deliver excellent performance. Whether replacing raschig balls or upgrading your current system, plastic raschig rings are a smart investment.