3Inch Environmental Protection Tower Packing Stainless Steel Metal
Pall Ring
Product Introduction of Metal Pall Ring
1. The metal pall ring random packing was developed by BASF company in 1940s on the basis of raschig
ring.
2. It is made of sheet metal by punching and rolling. Two rows of
window holes with tongue leaves extending inside are opened on the
ring wall. Each row of window has five tongue leaves bending into
the ring, pointing to the ring center, almost connecting at the
center, and the upper and lower layers of window holes are
staggered with each other.
3. Generally, the total area of the opening is about 35% of the
whole ring area. As a result of opening windows on the ring wall,
the distribution of gas and liquid in the packing bed and the mass
transfer performance are greatly improved compared with that in the
raschig ring. People have made plenty of study of its performance,
so pall ring is still one of the main random packing used at
present.
Metal pall ring's specification:
Size Dia.*Height (mm) | Thickness mm | Pack No. (m3) | Pack Density (kg/m3) | Specific Area (m2/m3) | Void Volume % | Dry Packing Factor |
| 16*16 | 0.3 | 214000 | 396 | 362 | 94.9 | 423 |
| 25*25 | 0.5 | 51940 | 393 | 219 | 95.0 | 255 |
| 38*38 | 0.6 | 15180 | 318 | 146 | 95.9 | 165 |
| 50*50 | 0.8 | 6500 | 314 | 109 | 96.0 | 124 |
| 76*76 | 1.2 | 1830 | 308 | 71 | 96.1 | 80 |
Application
Isolation , separation, absorption, desorption and pressure
reducing device.
Advantages
High efficiency
Easily Wettable
Good Liquid and Gas Distribution
Excellent stain resistance.
The packing is usually specified in the lowest cost material of
manufacture that will satisfy temperature and corrosion
requirements. Some of the most common materials listed in order of
relative cost are:
Polypropylene (mainly aqueous systems up to 100 deg. C)
Carbon steel (non-corrosive hydrocarbon systems)
Ceramic (sulphuric acid & nitric acid absorbers)
Stainless steels (most hydrocarbon systems)
PVDF, PFA (corrosive aqueous systems up to 150 deg. C)
PVC / C-PVC (corrosive aqueous systems up to 90 deg. C)
SS316L metal pall rings in various sizes:
Packing and Shipment
Plastic bag, Jumbo Bag, Wooden Case, Carton Box, On Pallet With PP
Film Wrapped
