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| Pall rings are made out of metal or plastic or ceramic and have same general form as Raschig rings with height euqal to diameter, however portions of the original cylinder wall are cut with the projections bent inward leaving holes in the wall. |
 Pall ring
The pall ring underwent further modification by Mass Transfer limited whereupon Cascade Mini ring was born. It has features similar to Pall ring except its height is only one-third the outside diameter. This Shape is said to Orient itself preferentially when dumped.
These traditional Pall ring type packings are mostly made for kind-to-kind replacement. They are available in metal, plastic and ceramic. Raschig rings are also available in metallic, ceramic and carbon material. Both are available in various sizes such as (mm) 16, 25, 38, 50 etc. Material: SS304, carbon steel, SS316, SS304L, PP, PVC,CPVC, PVDF and Ceramic. |
SS304 Pall ring, SS316 Pall ring, PVC pall ring, CPVC Pall ring, PVDF pall ring, PTFE pall ring, Ceramic pall ring
IMPROVED PALL RING, SUPER PALL RING, HY PAK |
| Metal pall ring: |
| |
|
ITEM
|
Piece Density pcs/m3
|
Surface Area m2/m3
|
Voidage (%)
|
dry filling
gene F
m-1
|
|
Metal Pall Ring 16mm
|
214000
|
344.2
|
93.1
|
275
|
|
Metal Pall Ring 25mm
|
51000
|
206.7
|
94.8
|
239
|
|
Metal Pall Ring 38mm
|
14300
|
130.4
|
96.08
|
220
|
|
Metal Pall Ring 50mm
|
6500
|
102.1
|
95.9
|
127
|
|
Metal Pall Ring 76mm
|
1930
|
73.2
|
95.2
|
94
|
|
| |
| Plastic Pall ring: |
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|
ITEM
|
Piece Density pcs/m3
|
Surface Area m2/m3
|
Voidage (%)
|
Packing Factor
|
|
Plastic Pall Ring 16mm
|
171000
|
344.2
|
93.1
|
275
|
|
Plastic Pall Ring 25mm
|
42900
|
206.7
|
94.8
|
239
|
|
Plastic Pall Ring 38mm
|
13700
|
130.4
|
96.08
|
220
|
|
Plastic Pall Ring 50mm
|
6500
|
102.1
|
95.9
|
127
|
|
Plastic Pall Ring 76mm
|
1765
|
73.2
|
70.9
|
94
|
|
|
Developed in the 1930s the berl Saddles has significantly increased surface area per unit of packed volume compared to the rashing ring. This Design was further improved by Norton Chemical process Products. The custome is: Intalox Saddle and Super intalox saddle.
Ningbo T.C.I co., combined the advantages of the shap of the intalox saddle with that of a modern ring packing whereupon IMTP (Intalox metal tower packing) come into being into the late 1970.
Table characteristic of Metal packing
|
Packing type
|
Void fraction
|
Bulk density
|
Dry bed Drop
|
|
M2//3
|
Kg/m3
|
G’=7324(kg/h.m2)
|
G’=13182(kg/h.m2)
|
|
|
0.942
|
464
|
375
|
1216
|
|
|
0.956
|
352
|
261
|
841
|
|
|
0.965
|
280
|
180
|
588
|
|
#25 IMTP
|
0.962
|
301
|
310
|
1012
|
|
#38 IMTP
|
0.971
|
232
|
196
|
645
|
|
#50 IMTP
|
0.977
|
181
|
122
|
408
|
|
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| New Product |
 |
Polypropylene Tellerette 3K
ETFE +25% Glass Tri packs 2inch
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