Complaint
Plastic pall ring is also called plastic pall ring packing. It is a type of random packing, which modifies directly at the shortcomings of raschig ring. This type pall ring makes some structural improvements on the basis of raschig ring. It adds many small rectangular windows on its wall. The blades of these small rectangular windows join together in the center of the pall ring.The openings on plastic pall ring's lateral wall fully utilize its internal surface area and greatly increase the gas-liquid agitation. Therefore, plastic pall ring has better gas-liquid distribution performance than plastic raschig ring.
| Item | PP Pall Ring | |||||||
| PP Pall Ring | D*T | Number per m³ | Bulk density | Surface area | Free volume | Dry Packing Factor | Material | |
| (mm) | PCS | (kg/m³) | (m²/m³) | (%) | (m-1) | The material is depend on PP | ||
| D16 | 16×1.0 | 170000 | 80 | 188 | 91 | 275 | ||
| D25 | 25×1.2 | 53500 | 69 | 175 | 90 | 239 | ||
| D38 | 38×1.4 | 15800 | 58 | 115 | 89 | 220 | ||
| D50 | 50×1.5 | 6500 | 54 | 93 | 90 | 127 | ||
| D76 | 76×2.6 | 1927 | 48 | 73.2 | 92 | 94 | ||
| D100 | 100×3 | 1000 | 48 | 52.8 | 94 | 82 | ||
| Feature | Material | |||||||
| -- High free volume | Pall ring packing is divided into three materials: metals, ceramics, plastics and the like. | |||||||
| -- Low pressure drop | ||||||||
| -- Low mass-transfer unit height | Wherein the metal material: 304, 316, 316L, carbon steel, 201 and so on. | |||||||
| -- High flooding point | ||||||||
| -- Uniform gas-liquid contact | The plastic material: PP, RPP, CPVC, PVDF, PVC, ETC. | |||||||
| -- Small specific gravity | ||||||||
| -- High mass transfer | ||||||||
