Pall Ring vs Raschig Ring
A Pall ring is a ring with windows in the wall, which gives higher capacity and efficiency than a plain ring. A Raschig ring is a simple ring with its height equal to its diameter, at lower cost. Choose a Pall ring for separation, absorption and desorption duties, and a Raschig ring for simple, low-cost service.
Side by Side
| Pall ring | Raschig ring | |
|---|---|---|
| Shape | Ring with windows in the wall. | Simple ring. Height equal to diameter. |
| Capacity and efficiency | Higher. | Lower. |
| Cost | Higher than a Raschig ring. | Lower. |
| Materials | Metal or polypropylene (PP). | Metal. |
| Sizes | 16 to 76 mm (range for our random packing). | 16 to 76 mm (range for our random packing). |
| Typical use | Separation, absorption and desorption; amine desulphurisation. | Simple ring packing for general use. |
Choose a Pall Ring When
- You need higher capacity and efficiency.
- Your duty is separation, absorption or desorption.
- You need plastic (PP) packing for corrosive service.
- You are packing an amine desulphurisation tower.
Choose a Raschig Ring When
- You want a simple ring at lower cost.
- Your duty is not demanding.
- Metal packing is suitable for your service.
Other Random Packing
We also supply cascade mini rings (good anti-fouling), saddle rings (vacuum distillation), Tellerette rings (dirty systems and gas scrubbers), polyhedral hollow balls and ceramic packing, in sizes from 16 to 76 mm.
Related Terms
Random packing · Pressure drop · Specific surface area
See the product: Random Packing Not sure? Request an Estimate
← Compare Products
Last updated: