Pall ring is made from heat resistant and chemical corrosion resistant plastic , for instance.polypropylene (PP). An advance on the Raschig Ring, the Pall Ring has similar cylindrical dimensions but has two rows of punched out holes, with fingers or webs turned into the centre of the cylinder, which significantly increases the performance of the packing, in terms of throughput, efficiency and pressure drop.
Technical data
Item |
Plastic Pall Rings |
Model |
Dimension |
No. per volume |
Surface Area |
Void Volume |
Dry packing factor |
DiaxHgtxThk mm |
Pcs/m3 |
m2/m3 |
% |
m-1 |
PPR-16 |
16X16X1.0 |
180000 |
188 |
91.1 |
275 |
PPR-25 |
25X25X1.2 |
49000 |
175 |
90 |
239 |
PPR-38 |
38X38X1.4 |
13600 |
155 |
89 |
220 |
PPR-50 |
50X50X1.5 |
6300 |
93 |
90 |
127 |
PPR-76 |
76x76x2.6 |
1830 |
73.2 |
92 |
94 |
Application |
- Aviation industry |
- Automotive industry |
- Brominating plants |
- Chemical industry |
- CL lines |
- Deionization plants |
- Pharmaceutical industry |
- Paper and pulp process lines |
Material |
Polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF). |
Delivery Time |
7-10 days since payment receipt. |
Package |
Plastic bag |
Supersack |
Carton |
1X20GP |
25m3 |
20-24m3 |
20m3 |
1X40GP |
54m3 |
40m3 |
40m3 |
Physical & chemical properties of plastic Random Packing:
Performance / Material |
PE |
PP |
RPP |
PVC |
CPVC |
PVDF |
Density (g/cm3) |
0.94-0.96 |
0.89-0.91 |
0.93-0.94 |
1.32-1.44 |
1.50-1.54 |
1.75-1.78 |
Operation Temp.(oC) |
90 |
>100 |
>120 |
>60 |
>90 |
>150 |
Chemical corrosion resistance |
Good |
Good |
Good |
Good |
Good |
Good |
Compression Strength(Mpa) |
>6.0 |
>6.5 |
>7.0 |
>6.0 |
>8.0 |
>10.0 |